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0
Mappings
0
Definitions
0
Inheritance
4
Pathophysiology
1
Histopathology
7
Phenotypes
11
Pathograph
5
Genes
4
Treatments
3
Subtypes
0
Differentials
0
Datasets
0
Trials
0
Models
25
References
1
Deep Research
🏷

Classifications

Harrison's Chapter
cancer solid tumor
ICD-O Morphology
Squamous Cell Carcinoma

Subtypes

3
Oral Cavity Squamous Cell Carcinoma
Carcinoma arising from the mucosal lining of the oral cavity including the lips, buccal mucosa, floor of mouth, oral tongue, hard palate, and retromolar trigone. Strongly associated with tobacco and alcohol.
Laryngeal Squamous Cell Carcinoma
Carcinoma of the larynx (voice box) affecting the glottic, supraglottic, or subglottic regions. Smoking is the dominant risk factor. Presents early with hoarseness when affecting the vocal cords.
Hypopharyngeal Squamous Cell Carcinoma
Carcinoma of the hypopharynx (lower throat), including pyriform sinuses, posterior pharyngeal wall, and postcricoid region. Often presents at advanced stage with poor prognosis.

Pathophysiology

4
TP53 Mutation and Inactivation
TP53 mutations occur in greater than 80% of HPV-negative HNSCC, representing the most common genetic alteration. Mutations are typically missense mutations in the DNA-binding domain caused by tobacco carcinogen-induced DNA adducts. Loss of p53 function eliminates cell cycle checkpoints and DNA damage repair.
squamous epithelial cell link
TP53 link
cell cycle checkpoint signaling link ↓ DECREASED apoptotic process link ↓ DECREASED
Show evidence (1 reference)
PMID:25631445 SUPPORT
"Smoking-related HNSCCs demonstrate near universal loss-of-function TP53 mutations and CDKN2A inactivation"
TCGA HNSCC abstract reports near-universal TP53 loss and CDKN2A inactivation in smoking-related tumors.
CDKN2A/p16 Inactivation
CDKN2A is inactivated by deletion, mutation, or promoter hypermethylation in approximately 60-70% of HPV-negative HNSCC. Loss of p16INK4a removes inhibition of CDK4/6, promoting cell cycle progression through the restriction point.
CDKN2A link
negative regulation of G1/S transition link ↓ DECREASED
EGFR Overexpression and Signaling
EGFR is overexpressed in 80-90% of HNSCC and amplified in a subset. EGFR signaling activates RAS-MAPK and PI3K-AKT pathways, promoting proliferation, survival, and invasion. EGFR is a validated therapeutic target in HNSCC.
epidermal growth factor receptor signaling pathway link ↑ INCREASED
NOTCH1 Inactivation
NOTCH1 loss-of-function mutations occur in approximately 15-20% of HPV-negative HNSCC. NOTCH signaling normally promotes squamous differentiation and growth arrest, functioning as a tumor suppressor in squamous epithelia.
NOTCH1 link
Notch signaling pathway link ↓ DECREASED

Histopathology

1
Squamous Cell Carcinoma VERY_FREQUENT
Head and neck squamous cell carcinoma is a squamous carcinoma of the head and neck.
Show evidence (1 reference)
PMID:36414699 PARTIAL
"Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer"
Abstract explicitly names head and neck squamous cell carcinoma.

Pathograph

Use the checkboxes to hide or show graph categories. Hover nodes for evidence and cross-linked metadata.
Referential integrity issues (4):
  • Target 'Genomic Instability' (from 'TP53 Mutation and Inactivation') not found in named elements
  • Target 'Cell Cycle Dysregulation' (from 'CDKN2A/p16 Inactivation') not found in named elements
  • Target 'RAS-MAPK Activation' (from 'EGFR Overexpression and Signaling') not found in named elements
  • Target 'PI3K-AKT Activation' (from 'EGFR Overexpression and Signaling') not found in named elements
Pathograph: causal mechanism network for HPV-Negative Head and Neck Cancer Interactive directed graph showing how pathophysiology mechanisms, phenotypes, genetic factors and variants, experimental models, environmental triggers, and treatments relate through causal and linked edges.

Phenotypes

7
Cardiovascular 1
Neck Mass VERY_FREQUENT Lymphadenopathy (HP:0002716)
Digestive 2
Dysphagia FREQUENT Dysphagia (HP:0002015)
Odynophagia FREQUENT Odynophagia (HP:0032043)
Head and Neck 1
Oral Lesion VERY_FREQUENT Oral ulcer (HP:0000155)
Voice 1
Hoarseness FREQUENT Hoarse voice (HP:0001609)
Constitutional 1
Otalgia OCCASIONAL Ear pain (HP:0030766)
Growth 1
Weight Loss FREQUENT Weight loss (HP:0001824)
🧬

Genetic Associations

5
TP53 (Somatic Mutations)
CDKN2A (Deletion/Methylation)
PIK3CA (Somatic Mutations)
NOTCH1 (Loss-of-Function Mutations)
EGFR (Amplification/Overexpression)
💊

Treatments

4
Surgical Resection
Action: surgical procedure MAXO:0000004
Primary surgery is preferred for oral cavity cancers and selected laryngeal/pharyngeal tumors. Extent depends on tumor stage and location. Reconstruction may be required for adequate margins.
Definitive Chemoradiation
Action: radiation therapy MAXO:0000014
Agent: cisplatin
Concurrent cisplatin-based chemotherapy with radiation therapy is standard for locally advanced laryngeal, hypopharyngeal, and oropharyngeal cancers where organ preservation is desired.
Cetuximab
Action: immunotherapy Ontology label: Immunotherapy NCIT:C15262
Agent: cetuximab
EGFR monoclonal antibody approved in combination with radiation for locally advanced disease and with chemotherapy for recurrent/metastatic disease. Alternative to cisplatin in patients unable to tolerate platinum.
Immunotherapy
Action: immunotherapy Ontology label: Immunotherapy NCIT:C15262
PD-1 inhibitors (pembrolizumab, nivolumab) are approved for recurrent or metastatic HNSCC as monotherapy or with chemotherapy. Response rates are modest (approximately 15-20% monotherapy).
🌍

Environmental Factors

2
Tobacco Smoking
exposure to tobacco smoking link
Cigarette smoking is the dominant risk factor for HPV-negative HNSCC, with a dose-response relationship. Tobacco smoke contains numerous carcinogens including polycyclic aromatic hydrocarbons and nitrosamines that cause DNA adducts and mutations, particularly in TP53.
Show evidence (1 reference)
PMID:36414699 PARTIAL
"Besides tobacco and alcohol abuse, human papilloma virus (HPV) infection is an independent risk factor, particularly in oropharyngeal squamous cell carcinomas (OPSCC)."
Identifies tobacco (and alcohol) as major risk factors for HNSCC.
Alcohol Consumption
exposure to ethanol link
Chronic alcohol consumption synergizes with tobacco to increase HNSCC risk multiplicatively. Alcohol acts as a solvent enhancing carcinogen penetration and is metabolized to acetaldehyde, a DNA-damaging agent. Ethanol is classified as a Group 1 carcinogen by IARC.
Show evidence (1 reference)
PMID:39244563 SUPPORT
"Smoking and alcohol independently increase the risk of both HPV-positive and HPV-negative HNSCC."
Abstract reports alcohol increases risk for HPV-negative HNSCC.
🔬

Biochemical Markers

2
p16 Immunohistochemistry
EGFR Expression
{ }

Source YAML

click to show
name: HPV-Negative Head and Neck Cancer
creation_date: '2026-01-26T02:55:13Z'
updated_date: '2026-04-22T20:13:21Z'
description: >-
  HPV-negative head and neck squamous cell carcinoma (HNSCC) is the classical form
  of head and neck cancer, strongly associated with tobacco and alcohol use. It is
  genetically characterized by TP53 mutations (greater than 80%), CDKN2A inactivation,
  and frequent EGFR amplification or overexpression. HPV-negative HNSCC has a worse
  prognosis than HPV-positive disease, with 5-year survival rates of 40-50% for
  locally advanced tumors. The disease commonly affects the oral cavity, larynx,
  and hypopharynx.
categories:
- Head and Neck Cancer
- Environmental Cancer
- Tobacco-Related Cancer
parents:
- head and neck squamous cell carcinoma
has_subtypes:
- name: Oral Cavity Squamous Cell Carcinoma
  description: >-
    Carcinoma arising from the mucosal lining of the oral cavity including
    the lips, buccal mucosa, floor of mouth, oral tongue, hard palate, and
    retromolar trigone. Strongly associated with tobacco and alcohol.
- name: Laryngeal Squamous Cell Carcinoma
  description: >-
    Carcinoma of the larynx (voice box) affecting the glottic, supraglottic,
    or subglottic regions. Smoking is the dominant risk factor. Presents
    early with hoarseness when affecting the vocal cords.
- name: Hypopharyngeal Squamous Cell Carcinoma
  description: >-
    Carcinoma of the hypopharynx (lower throat), including pyriform sinuses,
    posterior pharyngeal wall, and postcricoid region. Often presents at
    advanced stage with poor prognosis.
environmental:
- name: Tobacco Smoking
  description: >-
    Cigarette smoking is the dominant risk factor for HPV-negative HNSCC,
    with a dose-response relationship. Tobacco smoke contains numerous
    carcinogens including polycyclic aromatic hydrocarbons and nitrosamines
    that cause DNA adducts and mutations, particularly in TP53.
  evidence:
  - reference: PMID:36414699
    reference_title: "[The tumor microenvironment-relay station for prognosis and therapy response]."
    supports: PARTIAL
    snippet: "Besides tobacco and alcohol abuse, human papilloma virus (HPV) infection is an independent risk factor, particularly in oropharyngeal squamous cell carcinomas (OPSCC)."
    explanation: "Identifies tobacco (and alcohol) as major risk factors for HNSCC."
  exposure_term:
    preferred_term: exposure to tobacco smoking
    term:
      id: ECTO:6000029
      label: exposure to tobacco smoking
- name: Alcohol Consumption
  description: >-
    Chronic alcohol consumption synergizes with tobacco to increase HNSCC
    risk multiplicatively. Alcohol acts as a solvent enhancing carcinogen
    penetration and is metabolized to acetaldehyde, a DNA-damaging agent.
    Ethanol is classified as a Group 1 carcinogen by IARC.
  evidence:
  - reference: PMID:39244563
    reference_title: "Smoking and alcohol by HPV status in head and neck cancer: a Mendelian randomization study."
    supports: SUPPORT
    snippet: "Smoking and alcohol independently increase the risk of both HPV-positive and HPV-negative HNSCC."
    explanation: "Abstract reports alcohol increases risk for HPV-negative HNSCC."
  exposure_term:
    preferred_term: exposure to ethanol
    term:
      id: ECTO:9000027
      label: exposure to ethanol
pathophysiology:
- name: TP53 Mutation and Inactivation
  description: >-
    TP53 mutations occur in greater than 80% of HPV-negative HNSCC, representing
    the most common genetic alteration. Mutations are typically missense
    mutations in the DNA-binding domain caused by tobacco carcinogen-induced
    DNA adducts. Loss of p53 function eliminates cell cycle checkpoints
    and DNA damage repair.
  evidence:
  - reference: PMID:25631445
    reference_title: "Comprehensive genomic characterization of head and neck squamous cell carcinomas."
    supports: SUPPORT
    snippet: "Smoking-related HNSCCs demonstrate near universal loss-of-function TP53 mutations and CDKN2A inactivation"
    explanation: "TCGA HNSCC abstract reports near-universal TP53 loss and CDKN2A inactivation in smoking-related tumors."
  cell_types:
  - preferred_term: squamous epithelial cell
    term:
      id: CL:0000076
      label: squamous epithelial cell
  biological_processes:
  - preferred_term: cell cycle checkpoint signaling
    modifier: DECREASED
    term:
      id: GO:0000075
      label: cell cycle checkpoint signaling
  - preferred_term: apoptotic process
    modifier: DECREASED
    term:
      id: GO:0006915
      label: apoptotic process
  genes:
  - preferred_term: TP53
    term:
      id: hgnc:11998
      label: TP53
  downstream:
  - target: Genomic Instability
    description: Loss of p53-mediated DNA damage response leads to accumulated mutations
- name: CDKN2A/p16 Inactivation
  description: >-
    CDKN2A is inactivated by deletion, mutation, or promoter hypermethylation
    in approximately 60-70% of HPV-negative HNSCC. Loss of p16INK4a removes
    inhibition of CDK4/6, promoting cell cycle progression through the
    restriction point.
  genes:
  - preferred_term: CDKN2A
    term:
      id: hgnc:1787
      label: CDKN2A
  biological_processes:
  - preferred_term: negative regulation of G1/S transition
    modifier: DECREASED
    term:
      id: GO:2000134
      label: negative regulation of G1/S transition of mitotic cell cycle
  downstream:
  - target: Cell Cycle Dysregulation
    description: CDK4/6 phosphorylates pRB without restraint
- name: EGFR Overexpression and Signaling
  description: >-
    EGFR is overexpressed in 80-90% of HNSCC and amplified in a subset.
    EGFR signaling activates RAS-MAPK and PI3K-AKT pathways, promoting
    proliferation, survival, and invasion. EGFR is a validated therapeutic
    target in HNSCC.
  biological_processes:
  - preferred_term: epidermal growth factor receptor signaling pathway
    modifier: INCREASED
    term:
      id: GO:0007173
      label: epidermal growth factor receptor signaling pathway
  downstream:
  - target: RAS-MAPK Activation
    description: EGFR phosphorylation activates RAS and downstream MAP kinases
  - target: PI3K-AKT Activation
    description: EGFR recruits PI3K and activates survival signaling
- name: NOTCH1 Inactivation
  description: >-
    NOTCH1 loss-of-function mutations occur in approximately 15-20% of
    HPV-negative HNSCC. NOTCH signaling normally promotes squamous
    differentiation and growth arrest, functioning as a tumor suppressor
    in squamous epithelia.
  genes:
  - preferred_term: NOTCH1
    term:
      id: hgnc:7881
      label: NOTCH1
  biological_processes:
  - preferred_term: Notch signaling pathway
    modifier: DECREASED
    term:
      id: GO:0007219
      label: Notch signaling pathway
histopathology:
- name: Squamous Cell Carcinoma
  finding_term:
    preferred_term: Squamous Cell Carcinoma
    term:
      id: NCIT:C2929
      label: Squamous Cell Carcinoma
  frequency: VERY_FREQUENT
  description: Head and neck squamous cell carcinoma is a squamous carcinoma of the head and neck.
  evidence:
  - reference: PMID:36414699
    reference_title: "[The tumor microenvironment-relay station for prognosis and therapy response]."
    supports: PARTIAL
    snippet: "Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer"
    explanation: Abstract explicitly names head and neck squamous cell carcinoma.

phenotypes:
- category: Head and Neck
  name: Oral Lesion
  frequency: VERY_FREQUENT
  diagnostic: true
  description: >-
    Non-healing ulcers, white or red patches (leukoplakia, erythroplakia),
    or masses in the oral cavity may represent primary tumors or precursor
    lesions.
  phenotype_term:
    preferred_term: Oral ulcer
    term:
      id: HP:0000155
      label: Oral ulcer
- category: Head and Neck
  name: Neck Mass
  frequency: VERY_FREQUENT
  description: >-
    Cervical lymphadenopathy from nodal metastases is common at presentation.
    May be the presenting symptom, particularly for hypopharyngeal tumors.
  phenotype_term:
    preferred_term: Lymphadenopathy
    term:
      id: HP:0002716
      label: Lymphadenopathy
- category: Head and Neck
  name: Dysphagia
  frequency: FREQUENT
  description: >-
    Difficulty swallowing occurs with tumors of the tongue, oropharynx,
    hypopharynx, or any location causing obstruction.
  phenotype_term:
    preferred_term: Dysphagia
    term:
      id: HP:0002015
      label: Dysphagia
- category: Head and Neck
  name: Hoarseness
  frequency: FREQUENT
  description: >-
    Voice changes are characteristic of laryngeal carcinoma and an early
    symptom when the tumor involves the true vocal cords.
  phenotype_term:
    preferred_term: Hoarse voice
    term:
      id: HP:0001609
      label: Hoarse voice
- category: Head and Neck
  name: Odynophagia
  frequency: FREQUENT
  description: >-
    Painful swallowing occurs with ulcerative lesions or deep invasion
    of the pharyngeal mucosa.
  phenotype_term:
    preferred_term: Odynophagia
    term:
      id: HP:0032043
      label: Odynophagia
- category: Constitutional
  name: Weight Loss
  frequency: FREQUENT
  description: >-
    Unintentional weight loss is common due to dysphagia, pain, and
    catabolic effects of cancer. May indicate advanced disease.
  phenotype_term:
    preferred_term: Weight loss
    term:
      id: HP:0001824
      label: Weight loss
- category: Ear
  name: Otalgia
  frequency: OCCASIONAL
  description: >-
    Referred ear pain (via cranial nerves IX and X) may occur with
    pharyngeal and laryngeal tumors despite a normal ear examination.
  phenotype_term:
    preferred_term: Otalgia
    term:
      id: HP:0030766
      label: Ear pain
biochemical:
- name: p16 Immunohistochemistry
  notes: >-
    Unlike HPV-positive HNSCC, p16 is typically negative or focally/weakly
    positive in HPV-negative tumors due to CDKN2A inactivation. p16 status
    is critical for staging oropharyngeal carcinoma in the 8th edition AJCC
    staging system.
- name: EGFR Expression
  notes: >-
    EGFR overexpression is common but has not proven useful as a predictive
    biomarker for cetuximab response. EGFR gene copy number and mutations
    are less common than overexpression.
genetic:
- name: TP53
  association: Somatic Mutations
  notes: >-
    TP53 mutations occur in greater than 80% of HPV-negative HNSCC. Mutation
    spectrum shows tobacco carcinogen signature with G-to-T transversions.
    TP53 mutation is associated with worse prognosis and treatment resistance.
- name: CDKN2A
  association: Deletion/Methylation
  notes: >-
    CDKN2A is inactivated in 60-70% of HPV-negative HNSCC through homozygous
    deletion, promoter hypermethylation, or point mutation.
- name: PIK3CA
  association: Somatic Mutations
  notes: >-
    PIK3CA activating mutations occur in approximately 10-15% of HPV-negative
    HNSCC, activating PI3K/AKT/mTOR signaling.
- name: NOTCH1
  association: Loss-of-Function Mutations
  notes: >-
    NOTCH1 inactivating mutations occur in 15-20% of cases, impairing
    squamous differentiation.
- name: EGFR
  association: Amplification/Overexpression
  notes: >-
    EGFR is overexpressed in 80-90% of HNSCC and amplified in approximately
    15%. Provides rationale for EGFR-targeted therapy.
treatments:
- name: Surgical Resection
  description: >-
    Primary surgery is preferred for oral cavity cancers and selected
    laryngeal/pharyngeal tumors. Extent depends on tumor stage and location.
    Reconstruction may be required for adequate margins.
  treatment_term:
    preferred_term: surgical procedure
    term:
      id: MAXO:0000004
      label: surgical procedure
- name: Definitive Chemoradiation
  description: >-
    Concurrent cisplatin-based chemotherapy with radiation therapy is
    standard for locally advanced laryngeal, hypopharyngeal, and oropharyngeal
    cancers where organ preservation is desired.
  treatment_term:
    preferred_term: radiation therapy
    term:
      id: MAXO:0000014
      label: radiation therapy
    therapeutic_agent:
    - preferred_term: cisplatin
      term:
        id: CHEBI:27899
        label: cisplatin
- name: Cetuximab
  description: >-
    EGFR monoclonal antibody approved in combination with radiation for
    locally advanced disease and with chemotherapy for recurrent/metastatic
    disease. Alternative to cisplatin in patients unable to tolerate platinum.
  treatment_term:
    preferred_term: immunotherapy
    term:
      id: NCIT:C15262
      label: Immunotherapy
    therapeutic_agent:
    - preferred_term: cetuximab
      term:
        id: NCIT:C1723
        label: Cetuximab
- name: Immunotherapy
  description: >-
    PD-1 inhibitors (pembrolizumab, nivolumab) are approved for recurrent
    or metastatic HNSCC as monotherapy or with chemotherapy. Response
    rates are modest (approximately 15-20% monotherapy).
  treatment_term:
    preferred_term: immunotherapy
    term:
      id: NCIT:C15262
      label: Immunotherapy
disease_term:
  preferred_term: head and neck squamous cell carcinoma
  term:
    id: MONDO:0010150
    label: head and neck squamous cell carcinoma

classifications:
  icdo_morphology:
    classification_value: Squamous Cell Carcinoma
  harrisons_chapter:
  - classification_value: cancer
  - classification_value: solid tumor
references:
- reference: DOI:10.1002/ame2.12367
  title: Towards system genetics analysis of head and neck squamous cell carcinoma using the mouse model, cellular platform, and clinical human data
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Head and neck squamous cell cancer (HNSCC) is a leading global malignancy.
    supporting_text: Head and neck squamous cell cancer (HNSCC) is a leading global malignancy.
    evidence:
    - reference: DOI:10.1002/ame2.12367
      reference_title: Towards system genetics analysis of head and neck squamous cell carcinoma using the mouse model, cellular platform, and clinical human data
      supports: SUPPORT
      evidence_source: MODEL_ORGANISM
      snippet: Head and neck squamous cell cancer (HNSCC) is a leading global malignancy.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1002/jmv.29746
  title: 'Advances in human papillomavirus detection and molecular understanding in head and neck cancers: Implications for clinical management'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Head and neck cancers (HNCs), primarily head and neck squamous cell carcinoma (HNSCC), are associated with high‐risk human papillomavirus (HR HPV), notably HPV16 and HPV18.
    supporting_text: Head and neck cancers (HNCs), primarily head and neck squamous cell carcinoma (HNSCC), are associated with high‐risk human papillomavirus (HR HPV), notably HPV16 and HPV18.
    evidence:
    - reference: DOI:10.1002/jmv.29746
      reference_title: 'Advances in human papillomavirus detection and molecular understanding in head and neck cancers: Implications for clinical management'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Head and neck cancers (HNCs), primarily head and neck squamous cell carcinoma (HNSCC), are associated with high‐risk human papillomavirus (HR HPV), notably HPV16 and HPV18.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1002/mc.23640
  title: Immune landscape in molecular subtypes of human papillomavirus‐negative head and neck cancer
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Head and neck squamous cell carcinomas (HNSCC) remain a poorly understood disease clinically and immunologically.
    supporting_text: Head and neck squamous cell carcinomas (HNSCC) remain a poorly understood disease clinically and immunologically.
    evidence:
    - reference: DOI:10.1002/mc.23640
      reference_title: Immune landscape in molecular subtypes of human papillomavirus‐negative head and neck cancer
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Head and neck squamous cell carcinomas (HNSCC) remain a poorly understood disease clinically and immunologically.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1007/s10147-024-02632-x
  title: 'First-line pembrolizumab with or without chemotherapy for recurrent or metastatic head and neck squamous cell carcinoma: 5-year follow-up of the Japanese population of KEYNOTE‑048'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: 'First-line pembrolizumab with or without chemotherapy for recurrent or metastatic head and neck squamous cell carcinoma: 5-year follow-up of the Japanese population of KEYNOTE‑048'
    supporting_text: Previously reported results from phase III KEYNOTE-048 demonstrated similar or improved overall survival (OS) with pembrolizumab or pembrolizumab-chemotherapy versus cetuximab-chemotherapy (EXTREME) in Japanese patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC).
    evidence:
    - reference: DOI:10.1007/s10147-024-02632-x
      reference_title: 'First-line pembrolizumab with or without chemotherapy for recurrent or metastatic head and neck squamous cell carcinoma: 5-year follow-up of the Japanese population of KEYNOTE‑048'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Previously reported results from phase III KEYNOTE-048 demonstrated similar or improved overall survival (OS) with pembrolizumab or pembrolizumab-chemotherapy versus cetuximab-chemotherapy (EXTREME) in Japanese patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC).
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1007/s12105-024-01680-z
  title: Simultaneous p53 and p16 Immunostaining for Molecular Subclassification of Head and Neck Squamous Cell Carcinomas
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Simultaneous p53 and p16 Immunostaining for Molecular Subclassification of Head and Neck Squamous Cell Carcinomas
    supporting_text: Our aim was to assess the ability of simultaneous immunohistochemical staining (IHC) for p16 and p53 to accurately subclassify head and neck squamous cell carcinomas (HNSCC) as HPV-associated (HPV-A) versus HPV-independent (HPV-I) and compare p53 IHC staining patterns to TP53 mutation status, p16 IHC positivity and HPV status.
    evidence:
    - reference: DOI:10.1007/s12105-024-01680-z
      reference_title: Simultaneous p53 and p16 Immunostaining for Molecular Subclassification of Head and Neck Squamous Cell Carcinomas
      supports: SUPPORT
      evidence_source: OTHER
      snippet: Our aim was to assess the ability of simultaneous immunohistochemical staining (IHC) for p16 and p53 to accurately subclassify head and neck squamous cell carcinomas (HNSCC) as HPV-associated (HPV-A) versus HPV-independent (HPV-I) and compare p53 IHC staining patterns to TP53 mutation status, p16 IHC positivity and HPV status.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1016/j.heliyon.2024.e40671
  title: 'Health-related quality of life assessment in head and neck cancer: A systematic review of phase II and III clinical trials'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: 'Health-related quality of life assessment in head and neck cancer: A systematic review of phase II and III clinical trials'
    supporting_text: 'Health-related quality of life assessment in head and neck cancer: A systematic review of phase II and III clinical trials'
- reference: DOI:10.1016/j.isci.2024.109282
  title: Global burden of head and neck cancers from 1990 to 2019
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Global burden of head and neck cancers from 1990 to 2019
    supporting_text: Global burden of head and neck cancers from 1990 to 2019
- reference: DOI:10.1038/s41388-023-02783-7
  title: Genetically engineered mouse models of head and neck cancers
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: The head and neck region is one of the anatomic sites commonly afflicted by cancer, with ~1.5 million new diagnoses reported worldwide in 2020 alone.
    supporting_text: The head and neck region is one of the anatomic sites commonly afflicted by cancer, with ~1.5 million new diagnoses reported worldwide in 2020 alone.
    evidence:
    - reference: DOI:10.1038/s41388-023-02783-7
      reference_title: Genetically engineered mouse models of head and neck cancers
      supports: SUPPORT
      evidence_source: MODEL_ORGANISM
      snippet: The head and neck region is one of the anatomic sites commonly afflicted by cancer, with ~1.5 million new diagnoses reported worldwide in 2020 alone.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1038/s41416-023-02186-1
  title: Preclinical models in head and neck squamous cell carcinoma
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Head and neck cancer is the sixth most frequent cancer type.
    supporting_text: Head and neck cancer is the sixth most frequent cancer type.
    evidence:
    - reference: DOI:10.1038/s41416-023-02186-1
      reference_title: Preclinical models in head and neck squamous cell carcinoma
      supports: SUPPORT
      evidence_source: MODEL_ORGANISM
      snippet: Head and neck cancer is the sixth most frequent cancer type.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1038/s41467-024-53390-3
  title: Hallmarks of a genomically distinct subclass of head and neck cancer
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Cancer is caused by an accumulation of somatic mutations and copy number alterations (CNAs).
    supporting_text: Cancer is caused by an accumulation of somatic mutations and copy number alterations (CNAs).
    evidence:
    - reference: DOI:10.1038/s41467-024-53390-3
      reference_title: Hallmarks of a genomically distinct subclass of head and neck cancer
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Cancer is caused by an accumulation of somatic mutations and copy number alterations (CNAs).
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1038/s41467-024-55203-z
  title: Molecular correlates for HPV-negative head and neck cancer engraftment prognosticate patient outcomes
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Molecular correlates for HPV-negative head and neck cancer engraftment prognosticate patient outcomes
    supporting_text: Molecular correlates for HPV-negative head and neck cancer engraftment prognosticate patient outcomes
- reference: DOI:10.1038/s41571-024-00904-z
  title: 'Epidemiology of HPV-associated cancers past, present and future: towards prevention and elimination'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: 'Epidemiology of HPV-associated cancers past, present and future: towards prevention and elimination'
    supporting_text: 'Epidemiology of HPV-associated cancers past, present and future: towards prevention and elimination'
- reference: DOI:10.1158/1535-7163.mct-24-0281
  title: 'Advanced Human Papillomavirus–Negative Head and Neck Squamous Cell Carcinoma: Unmet Need and Emerging Therapies'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Despite notable progress in the treatment of advanced head and neck squamous cell carcinoma (HNSCC), survival remains poor in patients with recurrent and/or metastatic (R/M) human papillomavirus (HPV)–negative HNSCC.
    supporting_text: Despite notable progress in the treatment of advanced head and neck squamous cell carcinoma (HNSCC), survival remains poor in patients with recurrent and/or metastatic (R/M) human papillomavirus (HPV)–negative HNSCC.
    evidence:
    - reference: DOI:10.1158/1535-7163.mct-24-0281
      reference_title: 'Advanced Human Papillomavirus–Negative Head and Neck Squamous Cell Carcinoma: Unmet Need and Emerging Therapies'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Despite notable progress in the treatment of advanced head and neck squamous cell carcinoma (HNSCC), survival remains poor in patients with recurrent and/or metastatic (R/M) human papillomavirus (HPV)–negative HNSCC.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1186/s12885-024-12155-3
  title: 'Pembrolizumab-based first-line treatment for PD-L1-positive, recurrent or metastatic head and neck squamous cell carcinoma: a retrospective analysis'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: The KEYNOTE-048 trial showed that pembrolizumab-based first-line treatment for R/M HNSCC led to improved OS in the PD-L1 CPS ≥ 1 population when compared to the EXTREME regimen.
    supporting_text: The KEYNOTE-048 trial showed that pembrolizumab-based first-line treatment for R/M HNSCC led to improved OS in the PD-L1 CPS ≥ 1 population when compared to the EXTREME regimen.
    evidence:
    - reference: DOI:10.1186/s12885-024-12155-3
      reference_title: 'Pembrolizumab-based first-line treatment for PD-L1-positive, recurrent or metastatic head and neck squamous cell carcinoma: a retrospective analysis'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: The KEYNOTE-048 trial showed that pembrolizumab-based first-line treatment for R/M HNSCC led to improved OS in the PD-L1 CPS ≥ 1 population when compared to the EXTREME regimen.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1186/s12929-023-00953-z
  title: 'Circulating tumour DNA alterations: emerging biomarker in head and neck squamous cell carcinoma'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Head and Neck cancers (HNC) are a heterogeneous group of upper aero-digestive tract cancer and account for 931,922 new cases and 467,125 deaths worldwide.
    supporting_text: Head and Neck cancers (HNC) are a heterogeneous group of upper aero-digestive tract cancer and account for 931,922 new cases and 467,125 deaths worldwide.
    evidence:
    - reference: DOI:10.1186/s12929-023-00953-z
      reference_title: 'Circulating tumour DNA alterations: emerging biomarker in head and neck squamous cell carcinoma'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Head and Neck cancers (HNC) are a heterogeneous group of upper aero-digestive tract cancer and account for 931,922 new cases and 467,125 deaths worldwide.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1186/s13027-024-00592-5
  title: A SEER-based analysis of trends in HPV-associated oropharyngeal squamous cell carcinoma
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: The proportional trends of HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) according to various factors have not been analyzed in detail in previous studies.
    supporting_text: The proportional trends of HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) according to various factors have not been analyzed in detail in previous studies.
    evidence:
    - reference: DOI:10.1186/s13027-024-00592-5
      reference_title: A SEER-based analysis of trends in HPV-associated oropharyngeal squamous cell carcinoma
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: The proportional trends of HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) according to various factors have not been analyzed in detail in previous studies.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1186/s41199-020-00056-4
  title: Preclinical models of head and neck squamous cell carcinoma for a basic understanding of cancer biology and its translation into efficient therapies
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Comprehensive molecular characterization of head and neck squamous cell carcinoma (HNSCC) has led to the identification of distinct molecular subgroups with fundamental differences in biological properties and clinical behavior.
    supporting_text: Comprehensive molecular characterization of head and neck squamous cell carcinoma (HNSCC) has led to the identification of distinct molecular subgroups with fundamental differences in biological properties and clinical behavior.
    evidence:
    - reference: DOI:10.1186/s41199-020-00056-4
      reference_title: Preclinical models of head and neck squamous cell carcinoma for a basic understanding of cancer biology and its translation into efficient therapies
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Comprehensive molecular characterization of head and neck squamous cell carcinoma (HNSCC) has led to the identification of distinct molecular subgroups with fundamental differences in biological properties and clinical behavior.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.1200/jco.21.02508
  title: 'Pembrolizumab With or Without Chemotherapy in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma: Updated Results of the Phase III KEYNOTE-048 Study'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Pembrolizumab and pembrolizumab-chemotherapy demonstrated efficacy in recurrent/metastatic head and neck squamous cell carcinoma in KEYNOTE-048.
    supporting_text: Pembrolizumab and pembrolizumab-chemotherapy demonstrated efficacy in recurrent/metastatic head and neck squamous cell carcinoma in KEYNOTE-048.
    evidence:
    - reference: DOI:10.1200/jco.21.02508
      reference_title: 'Pembrolizumab With or Without Chemotherapy in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma: Updated Results of the Phase III KEYNOTE-048 Study'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Pembrolizumab and pembrolizumab-chemotherapy demonstrated efficacy in recurrent/metastatic head and neck squamous cell carcinoma in KEYNOTE-048.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.2196/47579
  title: 'Cause of Death in Patients with Oropharyngeal Carcinoma by Human Papillomavirus Status: Comparative Data Analysis'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: The incidence of oropharyngeal squamous cell carcinomas (OPSCC) has increased in recent decades, and human papillomavirus (HPV) infection is the main cause of OPSCC.
    supporting_text: The incidence of oropharyngeal squamous cell carcinomas (OPSCC) has increased in recent decades, and human papillomavirus (HPV) infection is the main cause of OPSCC.
    evidence:
    - reference: DOI:10.2196/47579
      reference_title: 'Cause of Death in Patients with Oropharyngeal Carcinoma by Human Papillomavirus Status: Comparative Data Analysis'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: The incidence of oropharyngeal squamous cell carcinomas (OPSCC) has increased in recent decades, and human papillomavirus (HPV) infection is the main cause of OPSCC.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.32481/djph.2023.04.008
  title: Human Papilloma Virus (HPV) and the Current State of Oropharyngeal Cancer Prevention and Treatment
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Human Papilloma Virus (HPV) and the Current State of Oropharyngeal Cancer Prevention and Treatment
    supporting_text: Human Papilloma Virus (HPV) and the Current State of Oropharyngeal Cancer Prevention and Treatment
- reference: DOI:10.3389/fonc.2023.1160144
  title: Real-world treatment patterns and outcomes among individuals receiving first-line pembrolizumab therapy for recurrent/metastatic head and neck squamous cell carcinoma
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Real-world treatment patterns and outcomes among individuals receiving first-line pembrolizumab therapy for recurrent/metastatic head and neck squamous cell carcinoma
    supporting_text: Pembrolizumab, a PD-1 immune checkpoint inhibitor, is approved as first-line (1L) treatment for recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC) as monotherapy or in combination with platinum and 5-fluorouracil chemotherapy.
    evidence:
    - reference: DOI:10.3389/fonc.2023.1160144
      reference_title: Real-world treatment patterns and outcomes among individuals receiving first-line pembrolizumab therapy for recurrent/metastatic head and neck squamous cell carcinoma
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Pembrolizumab, a PD-1 immune checkpoint inhibitor, is approved as first-line (1L) treatment for recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC) as monotherapy or in combination with platinum and 5-fluorouracil chemotherapy.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.3390/cancers15030656
  title: Accuracy of p16 IHC in Classifying HPV-Driven OPSCC in Different Populations
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: High-risk human papillomavirus (HPV) infection is a defined etiopathogenetic factor in oropharyngeal carcinogenesis with a clear prognostic value.
    supporting_text: High-risk human papillomavirus (HPV) infection is a defined etiopathogenetic factor in oropharyngeal carcinogenesis with a clear prognostic value.
    evidence:
    - reference: DOI:10.3390/cancers15030656
      reference_title: Accuracy of p16 IHC in Classifying HPV-Driven OPSCC in Different Populations
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: High-risk human papillomavirus (HPV) infection is a defined etiopathogenetic factor in oropharyngeal carcinogenesis with a clear prognostic value.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.3390/cancers15164080
  title: 'Human Papillomavirus-Associated Oropharyngeal Cancer: Global Epidemiology and Public Policy Implications'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Global trends in human papillomavirus (HPV)-associated head and neck cancers (HNC), specifically in the oropharynx subsite, have been dynamically changing, leading to new staging and treatment paradigms.
    supporting_text: Global trends in human papillomavirus (HPV)-associated head and neck cancers (HNC), specifically in the oropharynx subsite, have been dynamically changing, leading to new staging and treatment paradigms.
    evidence:
    - reference: DOI:10.3390/cancers15164080
      reference_title: 'Human Papillomavirus-Associated Oropharyngeal Cancer: Global Epidemiology and Public Policy Implications'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Global trends in human papillomavirus (HPV)-associated head and neck cancers (HNC), specifically in the oropharynx subsite, have been dynamically changing, leading to new staging and treatment paradigms.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.3390/diagnostics14131448
  title: 'The Role of Biomarkers in HPV-Positive Head and Neck Squamous Cell Carcinoma: Towards Precision Medicine'
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Head and neck cancer (HNC) represents a significant global health challenge, with squamous cell carcinomas (SCCs) accounting for approximately 90% of all HNC cases.
    supporting_text: Head and neck cancer (HNC) represents a significant global health challenge, with squamous cell carcinomas (SCCs) accounting for approximately 90% of all HNC cases.
    evidence:
    - reference: DOI:10.3390/diagnostics14131448
      reference_title: 'The Role of Biomarkers in HPV-Positive Head and Neck Squamous Cell Carcinoma: Towards Precision Medicine'
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Head and neck cancer (HNC) represents a significant global health challenge, with squamous cell carcinomas (SCCs) accounting for approximately 90% of all HNC cases.
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
- reference: DOI:10.34172/jcs.33282
  title: Dysphagia, Voice Problems and Health Related Quality of Life Among Head and Neck Cancer Survivors
  found_in:
  - HPV_Negative_Head_and_Neck_Cancer-deep-research-falcon.md
  findings:
  - statement: Head and neck cancer (HNC) and its treatment can cause significant side effects like dysphagia, voice problems which can affect health related quality of life (HRQOL).
    supporting_text: Head and neck cancer (HNC) and its treatment can cause significant side effects like dysphagia, voice problems which can affect health related quality of life (HRQOL).
    evidence:
    - reference: DOI:10.34172/jcs.33282
      reference_title: Dysphagia, Voice Problems and Health Related Quality of Life Among Head and Neck Cancer Survivors
      supports: SUPPORT
      evidence_source: HUMAN_CLINICAL
      snippet: Head and neck cancer (HNC) and its treatment can cause significant side effects like dysphagia, voice problems which can affect health related quality of life (HRQOL).
      explanation: Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
📚

References & Deep Research

References

25
Towards system genetics analysis of head and neck squamous cell carcinoma using the mouse model, cellular platform, and clinical human data
1 finding
Head and neck squamous cell cancer (HNSCC) is a leading global malignancy.
"Head and neck squamous cell cancer (HNSCC) is a leading global malignancy."
Show evidence (1 reference)
DOI:10.1002/ame2.12367 SUPPORT Model Organism
"Head and neck squamous cell cancer (HNSCC) is a leading global malignancy."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Advances in human papillomavirus detection and molecular understanding in head and neck cancers: Implications for clinical management
1 finding
Head and neck cancers (HNCs), primarily head and neck squamous cell carcinoma (HNSCC), are associated with high‐risk human papillomavirus (HR HPV), notably HPV16 and HPV18.
"Head and neck cancers (HNCs), primarily head and neck squamous cell carcinoma (HNSCC), are associated with high‐risk human papillomavirus (HR HPV), notably HPV16 and HPV18."
Show evidence (1 reference)
DOI:10.1002/jmv.29746 SUPPORT Human Clinical
"Head and neck cancers (HNCs), primarily head and neck squamous cell carcinoma (HNSCC), are associated with high‐risk human papillomavirus (HR HPV), notably HPV16 and HPV18."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Immune landscape in molecular subtypes of human papillomavirus‐negative head and neck cancer
1 finding
Head and neck squamous cell carcinomas (HNSCC) remain a poorly understood disease clinically and immunologically.
"Head and neck squamous cell carcinomas (HNSCC) remain a poorly understood disease clinically and immunologically."
Show evidence (1 reference)
DOI:10.1002/mc.23640 SUPPORT Human Clinical
"Head and neck squamous cell carcinomas (HNSCC) remain a poorly understood disease clinically and immunologically."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
First-line pembrolizumab with or without chemotherapy for recurrent or metastatic head and neck squamous cell carcinoma: 5-year follow-up of the Japanese population of KEYNOTE‑048
1 finding
First-line pembrolizumab with or without chemotherapy for recurrent or metastatic head and neck squamous cell carcinoma: 5-year follow-up of the Japanese population of KEYNOTE‑048
"Previously reported results from phase III KEYNOTE-048 demonstrated similar or improved overall survival (OS) with pembrolizumab or pembrolizumab-chemotherapy versus cetuximab-chemotherapy (EXTREME) in Japanese patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC)."
Show evidence (1 reference)
DOI:10.1007/s10147-024-02632-x SUPPORT Human Clinical
"Previously reported results from phase III KEYNOTE-048 demonstrated similar or improved overall survival (OS) with pembrolizumab or pembrolizumab-chemotherapy versus cetuximab-chemotherapy (EXTREME) in Japanese patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC)."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Simultaneous p53 and p16 Immunostaining for Molecular Subclassification of Head and Neck Squamous Cell Carcinomas
1 finding
Simultaneous p53 and p16 Immunostaining for Molecular Subclassification of Head and Neck Squamous Cell Carcinomas
"Our aim was to assess the ability of simultaneous immunohistochemical staining (IHC) for p16 and p53 to accurately subclassify head and neck squamous cell carcinomas (HNSCC) as HPV-associated (HPV-A) versus HPV-independent (HPV-I) and compare p53 IHC staining patterns to TP53 mutation status,..."
Show evidence (1 reference)
"Our aim was to assess the ability of simultaneous immunohistochemical staining (IHC) for p16 and p53 to accurately subclassify head and neck squamous cell carcinomas (HNSCC) as HPV-associated (HPV-A) versus HPV-independent (HPV-I) and compare p53 IHC staining patterns to TP53 mutation status,..."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Health-related quality of life assessment in head and neck cancer: A systematic review of phase II and III clinical trials
1 finding
Health-related quality of life assessment in head and neck cancer: A systematic review of phase II and III clinical trials
"Health-related quality of life assessment in head and neck cancer: A systematic review of phase II and III clinical trials"
Global burden of head and neck cancers from 1990 to 2019
1 finding
Global burden of head and neck cancers from 1990 to 2019
"Global burden of head and neck cancers from 1990 to 2019"
Genetically engineered mouse models of head and neck cancers
1 finding
The head and neck region is one of the anatomic sites commonly afflicted by cancer, with ~1.5 million new diagnoses reported worldwide in 2020 alone.
"The head and neck region is one of the anatomic sites commonly afflicted by cancer, with ~1.5 million new diagnoses reported worldwide in 2020 alone."
Show evidence (1 reference)
DOI:10.1038/s41388-023-02783-7 SUPPORT Model Organism
"The head and neck region is one of the anatomic sites commonly afflicted by cancer, with ~1.5 million new diagnoses reported worldwide in 2020 alone."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Preclinical models in head and neck squamous cell carcinoma
1 finding
Head and neck cancer is the sixth most frequent cancer type.
"Head and neck cancer is the sixth most frequent cancer type."
Show evidence (1 reference)
DOI:10.1038/s41416-023-02186-1 SUPPORT Model Organism
"Head and neck cancer is the sixth most frequent cancer type."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Hallmarks of a genomically distinct subclass of head and neck cancer
1 finding
Cancer is caused by an accumulation of somatic mutations and copy number alterations (CNAs).
"Cancer is caused by an accumulation of somatic mutations and copy number alterations (CNAs)."
Show evidence (1 reference)
DOI:10.1038/s41467-024-53390-3 SUPPORT Human Clinical
"Cancer is caused by an accumulation of somatic mutations and copy number alterations (CNAs)."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Molecular correlates for HPV-negative head and neck cancer engraftment prognosticate patient outcomes
1 finding
Molecular correlates for HPV-negative head and neck cancer engraftment prognosticate patient outcomes
"Molecular correlates for HPV-negative head and neck cancer engraftment prognosticate patient outcomes"
Epidemiology of HPV-associated cancers past, present and future: towards prevention and elimination
1 finding
Epidemiology of HPV-associated cancers past, present and future: towards prevention and elimination
"Epidemiology of HPV-associated cancers past, present and future: towards prevention and elimination"
Advanced Human Papillomavirus–Negative Head and Neck Squamous Cell Carcinoma: Unmet Need and Emerging Therapies
1 finding
Despite notable progress in the treatment of advanced head and neck squamous cell carcinoma (HNSCC), survival remains poor in patients with recurrent and/or metastatic (R/M) human papillomavirus (HPV)–negative HNSCC.
"Despite notable progress in the treatment of advanced head and neck squamous cell carcinoma (HNSCC), survival remains poor in patients with recurrent and/or metastatic (R/M) human papillomavirus (HPV)–negative HNSCC."
Show evidence (1 reference)
DOI:10.1158/1535-7163.mct-24-0281 SUPPORT Human Clinical
"Despite notable progress in the treatment of advanced head and neck squamous cell carcinoma (HNSCC), survival remains poor in patients with recurrent and/or metastatic (R/M) human papillomavirus (HPV)–negative HNSCC."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Pembrolizumab-based first-line treatment for PD-L1-positive, recurrent or metastatic head and neck squamous cell carcinoma: a retrospective analysis
1 finding
The KEYNOTE-048 trial showed that pembrolizumab-based first-line treatment for R/M HNSCC led to improved OS in the PD-L1 CPS ≥ 1 population when compared to the EXTREME regimen.
"The KEYNOTE-048 trial showed that pembrolizumab-based first-line treatment for R/M HNSCC led to improved OS in the PD-L1 CPS ≥ 1 population when compared to the EXTREME regimen."
Show evidence (1 reference)
DOI:10.1186/s12885-024-12155-3 SUPPORT Human Clinical
"The KEYNOTE-048 trial showed that pembrolizumab-based first-line treatment for R/M HNSCC led to improved OS in the PD-L1 CPS ≥ 1 population when compared to the EXTREME regimen."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Circulating tumour DNA alterations: emerging biomarker in head and neck squamous cell carcinoma
1 finding
Head and Neck cancers (HNC) are a heterogeneous group of upper aero-digestive tract cancer and account for 931,922 new cases and 467,125 deaths worldwide.
"Head and Neck cancers (HNC) are a heterogeneous group of upper aero-digestive tract cancer and account for 931,922 new cases and 467,125 deaths worldwide."
Show evidence (1 reference)
DOI:10.1186/s12929-023-00953-z SUPPORT Human Clinical
"Head and Neck cancers (HNC) are a heterogeneous group of upper aero-digestive tract cancer and account for 931,922 new cases and 467,125 deaths worldwide."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
A SEER-based analysis of trends in HPV-associated oropharyngeal squamous cell carcinoma
1 finding
The proportional trends of HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) according to various factors have not been analyzed in detail in previous studies.
"The proportional trends of HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) according to various factors have not been analyzed in detail in previous studies."
Show evidence (1 reference)
DOI:10.1186/s13027-024-00592-5 SUPPORT Human Clinical
"The proportional trends of HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) according to various factors have not been analyzed in detail in previous studies."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Preclinical models of head and neck squamous cell carcinoma for a basic understanding of cancer biology and its translation into efficient therapies
1 finding
Comprehensive molecular characterization of head and neck squamous cell carcinoma (HNSCC) has led to the identification of distinct molecular subgroups with fundamental differences in biological properties and clinical behavior.
"Comprehensive molecular characterization of head and neck squamous cell carcinoma (HNSCC) has led to the identification of distinct molecular subgroups with fundamental differences in biological properties and clinical behavior."
Show evidence (1 reference)
DOI:10.1186/s41199-020-00056-4 SUPPORT Human Clinical
"Comprehensive molecular characterization of head and neck squamous cell carcinoma (HNSCC) has led to the identification of distinct molecular subgroups with fundamental differences in biological properties and clinical behavior."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Pembrolizumab With or Without Chemotherapy in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma: Updated Results of the Phase III KEYNOTE-048 Study
1 finding
Pembrolizumab and pembrolizumab-chemotherapy demonstrated efficacy in recurrent/metastatic head and neck squamous cell carcinoma in KEYNOTE-048.
"Pembrolizumab and pembrolizumab-chemotherapy demonstrated efficacy in recurrent/metastatic head and neck squamous cell carcinoma in KEYNOTE-048."
Show evidence (1 reference)
DOI:10.1200/jco.21.02508 SUPPORT Human Clinical
"Pembrolizumab and pembrolizumab-chemotherapy demonstrated efficacy in recurrent/metastatic head and neck squamous cell carcinoma in KEYNOTE-048."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Cause of Death in Patients with Oropharyngeal Carcinoma by Human Papillomavirus Status: Comparative Data Analysis
1 finding
The incidence of oropharyngeal squamous cell carcinomas (OPSCC) has increased in recent decades, and human papillomavirus (HPV) infection is the main cause of OPSCC.
"The incidence of oropharyngeal squamous cell carcinomas (OPSCC) has increased in recent decades, and human papillomavirus (HPV) infection is the main cause of OPSCC."
Show evidence (1 reference)
DOI:10.2196/47579 SUPPORT Human Clinical
"The incidence of oropharyngeal squamous cell carcinomas (OPSCC) has increased in recent decades, and human papillomavirus (HPV) infection is the main cause of OPSCC."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Human Papilloma Virus (HPV) and the Current State of Oropharyngeal Cancer Prevention and Treatment
1 finding
Human Papilloma Virus (HPV) and the Current State of Oropharyngeal Cancer Prevention and Treatment
"Human Papilloma Virus (HPV) and the Current State of Oropharyngeal Cancer Prevention and Treatment"
Real-world treatment patterns and outcomes among individuals receiving first-line pembrolizumab therapy for recurrent/metastatic head and neck squamous cell carcinoma
1 finding
Real-world treatment patterns and outcomes among individuals receiving first-line pembrolizumab therapy for recurrent/metastatic head and neck squamous cell carcinoma
"Pembrolizumab, a PD-1 immune checkpoint inhibitor, is approved as first-line (1L) treatment for recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC) as monotherapy or in combination with platinum and 5-fluorouracil chemotherapy."
Show evidence (1 reference)
DOI:10.3389/fonc.2023.1160144 SUPPORT Human Clinical
"Pembrolizumab, a PD-1 immune checkpoint inhibitor, is approved as first-line (1L) treatment for recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC) as monotherapy or in combination with platinum and 5-fluorouracil chemotherapy."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Accuracy of p16 IHC in Classifying HPV-Driven OPSCC in Different Populations
1 finding
High-risk human papillomavirus (HPV) infection is a defined etiopathogenetic factor in oropharyngeal carcinogenesis with a clear prognostic value.
"High-risk human papillomavirus (HPV) infection is a defined etiopathogenetic factor in oropharyngeal carcinogenesis with a clear prognostic value."
Show evidence (1 reference)
DOI:10.3390/cancers15030656 SUPPORT Human Clinical
"High-risk human papillomavirus (HPV) infection is a defined etiopathogenetic factor in oropharyngeal carcinogenesis with a clear prognostic value."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Human Papillomavirus-Associated Oropharyngeal Cancer: Global Epidemiology and Public Policy Implications
1 finding
Global trends in human papillomavirus (HPV)-associated head and neck cancers (HNC), specifically in the oropharynx subsite, have been dynamically changing, leading to new staging and treatment paradigms.
"Global trends in human papillomavirus (HPV)-associated head and neck cancers (HNC), specifically in the oropharynx subsite, have been dynamically changing, leading to new staging and treatment paradigms."
Show evidence (1 reference)
DOI:10.3390/cancers15164080 SUPPORT Human Clinical
"Global trends in human papillomavirus (HPV)-associated head and neck cancers (HNC), specifically in the oropharynx subsite, have been dynamically changing, leading to new staging and treatment paradigms."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
The Role of Biomarkers in HPV-Positive Head and Neck Squamous Cell Carcinoma: Towards Precision Medicine
1 finding
Head and neck cancer (HNC) represents a significant global health challenge, with squamous cell carcinomas (SCCs) accounting for approximately 90% of all HNC cases.
"Head and neck cancer (HNC) represents a significant global health challenge, with squamous cell carcinomas (SCCs) accounting for approximately 90% of all HNC cases."
Show evidence (1 reference)
DOI:10.3390/diagnostics14131448 SUPPORT Human Clinical
"Head and neck cancer (HNC) represents a significant global health challenge, with squamous cell carcinomas (SCCs) accounting for approximately 90% of all HNC cases."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.
Dysphagia, Voice Problems and Health Related Quality of Life Among Head and Neck Cancer Survivors
1 finding
Head and neck cancer (HNC) and its treatment can cause significant side effects like dysphagia, voice problems which can affect health related quality of life (HRQOL).
"Head and neck cancer (HNC) and its treatment can cause significant side effects like dysphagia, voice problems which can affect health related quality of life (HRQOL)."
Show evidence (1 reference)
DOI:10.34172/jcs.33282 SUPPORT Human Clinical
"Head and neck cancer (HNC) and its treatment can cause significant side effects like dysphagia, voice problems which can affect health related quality of life (HRQOL)."
Deep research cited this publication as relevant literature for HPV Negative Head and Neck Cancer.

Deep Research

1
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HPV-Negative Head and Neck Cancer (HPV− HNSCC): Comprehensive Disease Characteristics Report
Edison Scientific Literature 71 citations 2026-04-05T16:33:14.443804

HPV-Negative Head and Neck Cancer (HPV− HNSCC): Comprehensive Disease Characteristics Report

Target disease

  • Disease name (preferred): HPV-negative head and neck squamous cell carcinoma (HPV− HNSCC) (krsek2024theroleof pages 14-15, tasoulas2023geneticallyengineeredmouse pages 1-2)
  • Scope: Squamous cell carcinomas arising in the upper aerodigestive tract (oral cavity, pharynx/oropharynx, larynx, hypopharynx) that are HPV-independent (tasoulas2023geneticallyengineeredmouse pages 1-2, xie2024immunelandscapein pages 1-2)
  • MONDO ID / MeSH / ICD: Not explicitly retrievable from the provided evidence (placeholders recommended; see Artifact-00) (artifact-00)
Field Value
Preferred name HPV-negative head and neck squamous cell carcinoma (HPV-negative HNSCC) (krsek2024theroleof pages 14-15, tasoulas2023geneticallyengineeredmouse pages 1-2)
Common synonyms HPV− HNSCC; HPV-negative HNSCC; HPV-independent HNSCC; HPV-unrelated HNSCC; tobacco/alcohol-associated HNSCC (context-dependent); for oropharyngeal disease: HPV-negative OPSCC, p16-negative OPSCC, HPV-independent OPSCC (krsek2024theroleof pages 14-15, pakkanen2024simultaneousp53and pages 1-2, gallus2023accuracyofp16 pages 1-2, tran2024advancesinhuman pages 6-7)
Disease family Head and neck squamous cell carcinoma (HNSCC), a squamous malignancy of the upper aerodigestive tract (tasoulas2023geneticallyengineeredmouse pages 1-2, xie2024immunelandscapein pages 1-2)
Typical anatomic subsites Oral cavity, larynx, hypopharynx, and oropharynx; HNSCC arises from mucosal epithelium lining the oral cavity, pharynx, and larynx (tasoulas2023geneticallyengineeredmouse pages 1-2, xie2024immunelandscapein pages 1-2)
Oropharyngeal-specific terminology In OPSCC, current classification distinguishes HPV-associated vs HPV-independent disease; p16 IHC is widely used as a surrogate marker, but p16-positive/HPV-negative discordance occurs, so confirmatory HPV nucleic-acid testing may be needed in selected cases (gallus2023accuracyofp16 pages 4-5, gallus2023accuracyofp16 pages 2-4, gallus2023accuracyofp16 pages 1-2, tran2024advancesinhuman pages 6-7)
Key classification note WHO/AJCC framework separates HPV-associated OPSCC from HPV-independent/HPV-negative OPSCC because they are clinically and molecularly distinct entities with different prognosis (krsek2024theroleof pages 14-15, gallus2023accuracyofp16 pages 1-2)
p16 IHC note p16 immunohistochemistry is an accepted practical surrogate for HPV-associated OPSCC, typically positive when >70% of tumor cells show strong nuclear and cytoplasmic staining; p16-negative OPSCC generally supports HPV-independent disease, but p16 alone is imperfect (pakkanen2024simultaneousp53and pages 1-2, gallus2023accuracyofp16 pages 1-2, tran2024advancesinhuman pages 6-7)
Distinguishing biology HPV-negative disease is commonly linked to tobacco/alcohol exposure and frequently shows TP53 and CDKN2A alterations, unlike HPV-positive disease driven by viral E6/E7 biology (krsek2024theroleof pages 14-15, tasoulas2023geneticallyengineeredmouse pages 1-2)
MONDO ID Not established from retrieved evidence; placeholder: MONDO: [not available from retrieved evidence]
MeSH Placeholder: MeSH term for disease subset [not available from retrieved evidence]; broader family term HNSCC/head and neck neoplasms used in literature (tasoulas2023geneticallyengineeredmouse pages 1-2, xie2024immunelandscapein pages 1-2)
ICD-10 / ICD-11 No single retrieved code specific to HPV-negative HNSCC subset; use site-specific head and neck SCC coding plus HPV-status modifiers where available; placeholder: ICD-10/11 [site-specific / not available from retrieved evidence]
Evidence source type Aggregated disease-level literature and classification/guideline-style reviews, not individual EHR-derived records (krsek2024theroleof pages 14-15, tasoulas2023geneticallyengineeredmouse pages 1-2, gallus2023accuracyofp16 pages 1-2)

Table: This table summarizes practical names, synonyms, anatomic scope, and classification notes for HPV-negative head and neck squamous cell carcinoma. It is useful for harmonizing ontology mapping and terminology in a disease knowledge base when specific MONDO/MeSH/ICD identifiers are not directly available from the retrieved evidence.


1. Disease information (concepts, definitions, identifiers)

1.1 Definition and current understanding

HPV− HNSCC refers to head and neck squamous cell carcinomas that are not driven by transcriptionally active high-risk HPV and are typically associated with carcinogen exposure (notably tobacco and alcohol), with a molecular landscape dominated by tumor-suppressor loss and high genomic instability (krsek2024theroleof pages 14-15, tasoulas2023geneticallyengineeredmouse pages 1-2, park2024advancedhumanpapillomavirus–negative pages 1-2).

In oropharyngeal squamous cell carcinoma (OPSCC), HPV-associated and HPV-independent disease are now treated as clinically distinct entities because of differences in prognosis and biology; p16 immunohistochemistry (IHC) is widely used as a practical surrogate for HPV association but is imperfect (gallus2023accuracyofp16 pages 1-2, tran2024advancesinhuman pages 6-7).

1.2 Common synonyms / alternative names

  • HPV− HNSCC; HPV-negative HNSCC; HPV-independent HNSCC; HPV-unrelated HNSCC (krsek2024theroleof pages 14-15, pakkanen2024simultaneousp53and pages 1-2)
  • For OPSCC: HPV-negative OPSCC; p16-negative OPSCC; HPV-independent OPSCC (gallus2023accuracyofp16 pages 1-2, tran2024advancesinhuman pages 6-7)

1.3 Evidence source type

This report is based on aggregated disease-level resources (primary trials, registry studies, systematic reviews, translational studies), not individual EHR-only data (harrington2023pembrolizumabwithor pages 1-2, zhang2023causeofdeath pages 1-2, waas2024molecularcorrelatesfor pages 1-2).


2. Etiology

2.1 Primary causal factors and risk factors

Carcinogen-associated etiology dominates HPV− disease. Across HNSCC, tobacco and alcohol are repeatedly identified as major etiologic drivers, and HPV− tumors are enriched among patients with these exposures (krsek2024theroleof pages 14-15, xie2024immunelandscapein pages 1-2).

A 2023 review summarizing global burden states that “at least 75% of HNSCCs are attributable to tobacco smoking and alcohol consumption” and that combined heavy use confers a markedly increased risk (reported as 35-fold higher risk) (huang2023circulatingtumourdna pages 1-2).

Other risk factors referenced in recent reviews include betel nut chewing and low socioeconomic status (tasoulas2023geneticallyengineeredmouse pages 1-2).

2.2 Protective factors

  • Risk-factor reduction: tobacco and alcohol reduction are the most consistently supported protective measures for HPV− disease at the population level (huang2023circulatingtumourdna pages 1-2, gribb2023humanpapillomavirus pages 1-3).
  • HPV vaccination prevents HPV-associated OPSCC (not HPV− tumors directly) but can change the population composition of OPSCC and is central for HPV+ prevention (ndon2023humanpapillomavirusassociatedoropharyngeal pages 1-3, malagon2024epidemiologyofhpvassociated pages 1-4).

2.3 Gene–environment interactions

While the provided evidence does not include a formal G×E model, it links tobacco-associated carcinogenesis to: - high mutational burden and copy-number alterations (CNAs) in HPV− tumors (park2024advancedhumanpapillomavirus–negative pages 1-2, huang2023circulatingtumourdna pages 4-6) - loss of cell-cycle regulators and immunologic features consistent with an immunosuppressive/hypoxic tumor microenvironment (TME) (park2024advancedhumanpapillomavirus–negative pages 1-2).


3. Phenotypes (clinical manifestations) and quality of life

3.1 Anatomic distribution and staging (illustrative clinical cohorts)

A 2024 head and neck cancer survivor cohort (n=110) provides subsite and stage distributions: oral cavity 52.7%, oropharyngeal/nasopharyngeal 20.0%, pharyngeal 16.4%, larynx/hypopharynx 10.9%; stage III 32.7% and stage IV 27.3% (sharma2024dysphagiavoiceproblems pages 2-3). Although HPV status was not specified, these subsites and late-stage distributions are consistent with populations heavily enriched for HPV− disease in many settings.

3.2 Major symptom/survivorship phenotypes and suggested HPO terms

Post-treatment and survivorship phenotypes are prominent and clinically important: - Dysphagia (HPO: HP:0002015) (sharma2024dysphagiavoiceproblems pages 1-2) - Voice impairment / hoarseness (HPO: HP:0001609 Dysphonia) (sharma2024dysphagiavoiceproblems pages 1-2) - Pain (HPO: HP:0012531) (filippini2024healthrelatedqualityof pages 1-2) - Xerostomia (HPO: HP:0000217) (filippini2024healthrelatedqualityof pages 1-2) - Weight loss / malnutrition (HPO: HP:0001824 Weight loss; HP:0004395 Malnutrition) (filippini2024healthrelatedqualityof pages 1-2)

3.3 Quantitative QoL and symptom burden (recent data)

A 2024 survivor cohort reported very high prevalence of functional sequelae: - Dysphagia in 85.5% (94/110) - Severe voice problems in 50% (sharma2024dysphagiavoiceproblems pages 1-2, sharma2024dysphagiavoiceproblems pages 2-3)

In the same cohort, EORTC QLQ-C30 functional scores were relatively high for cognitive functioning (mean 80.76) and role functioning (80.30), while symptoms included pain (mean 42.42), fatigue (42.22), and financial difficulties (41.21) (sharma2024dysphagiavoiceproblems pages 1-2).

A 2024 systematic review of phase II/III trials emphasized dysphagia and speech problems as long-term burdens: dysphagia/dysarthria were described as affecting ~50% within the first year post-radiotherapy with persistence in subsets for years, and treatment-associated weight loss (>5%) occurs in 66% during therapy (filippini2024healthrelatedqualityof pages 1-2).

3.4 Suggested UBERON terms (anatomy)

  • Oral cavity (UBERON:0000165)
  • Oropharynx (UBERON:0001729)
  • Larynx (UBERON:0001737)
  • Hypopharynx (UBERON:0006562)

(UBERON IDs are standard ontology suggestions; not explicitly enumerated in the retrieved papers.)


4. Genetic / molecular information

4.1 Core somatic driver landscape (HPV−)

HPV− HNSCC is characterized by frequent tumor suppressor alterations and extensive CNAs (park2024advancedhumanpapillomavirus–negative pages 1-2, huang2023circulatingtumourdna pages 4-6).

A 2024 expert review focusing on advanced HPV− HNSCC reports mutation/alteration frequencies: - TP53 altered ~84% - CDKN2A altered ~58% - CCND1 altered ~31% - PIK3CA altered ~34% and recurrent focal deletions including NSD1, FAT1, NOTCH1, SMAD4 (park2024advancedhumanpapillomavirus–negative pages 1-2).

A ctDNA-focused 2023 review similarly emphasizes TP53 dominance and notes TP53 mutations in 73–100% of HPV− HNSCC in cited series, plus recurrent alterations impacting CCND1/CDKN2A, FAT1 (Wnt signaling activation), NOTCH pathway, EGFR CNV, and NRF2 pathway (smoking-associated) (huang2023circulatingtumourdna pages 4-6).

4.2 Copy number alterations and genomic subclasses

A 2024 Nature Communications study identifies a distinct HPV− oral cavity SCC subgroup with no/few CNAs (“CNA-quiet”) comprising 73/802 (9.1%), enriched for wild-type TP53 and frequent CASP8/HRAS mutations, with a less immunosuppressed TME (lower regulatory T-cell density) and improved survival compared with CNA-other tumors (muijlwijk2024hallmarksofa pages 1-2).

4.3 Immune microenvironment and transcriptomic subtypes (2024)

A 2024 transcriptomic immune deconvolution analysis across >700 HPV− HNSCC cases assigns HPV− tumors into four molecular subtypes (classical, basal, mesenchymal, atypical) and reports: - Atypical and mesenchymal subtypes show greater immune enrichment and T-cell exhaustion phenotypes relative to classical and basal - distinct B-cell maturation/isotype patterns - a hypothesis that treatments enhancing B-cell activity may benefit atypical subtypes (xie2024immunelandscapein pages 1-2, xie2024immunelandscapein pages 2-3).

4.4 Mechanistic pathways (GO term suggestions)

Key pathways and processes inferred from the evidence: - Cell-cycle dysregulation (GO:0007049 cell cycle) via TP53/CDKN2A loss, CCND1 gain (park2024advancedhumanpapillomavirus–negative pages 1-2) - DNA damage response / genomic instability (GO:0006974 cellular response to DNA damage stimulus) (huang2023circulatingtumourdna pages 4-6) - EGFR/PI3K/AKT signaling (GO:0014066 regulation of phosphatidylinositol 3-kinase signaling; GO:0045744 negative regulation of G1/S transition) (park2024advancedhumanpapillomavirus–negative pages 1-2, huang2023circulatingtumourdna pages 4-6) - Hypoxia response (GO:0001666 response to hypoxia) and immune suppression in tobacco-associated HPV− tumors (park2024advancedhumanpapillomavirus–negative pages 1-2)

4.5 Cell types (CL term suggestions)

  • Squamous epithelial cells / keratinocytes (CL:0000312)
  • Tumor-infiltrating CD8+ T cells (CL:0000625)
  • Regulatory T cells (Treg) (CL:0000815)
  • B cells (CL:0000236)

(Cell Ontology IDs are standard ontology suggestions; not explicitly enumerated in the retrieved papers.)


5. Environmental information

5.1 Lifestyle and environmental drivers

The strongest evidence-supported modifiable drivers for HPV− HNSCC remain: - Tobacco exposure - Alcohol exposure with synergy increasing risk substantially (huang2023circulatingtumourdna pages 1-2).


6. Mechanism / pathophysiology (causal chain)

6.1 Upstream triggers to downstream disease

A consistent mechanistic model supported by recent reviews is: 1) Carcinogen exposure (tobacco/alcohol) → 2) DNA damage and mutagenesis → 3) Loss of tumor suppressor control and cell-cycle checkpoint failure (TP53, CDKN2A; CCND1 gains) → 4) CNA accumulation and pathway rewiring (EGFR/PI3K signaling; Wnt/NOTCH disruption; NRF2 oxidative stress response) → 5) Immune evasion / hypoxic noninflamed TME in many tumors → 6) Invasion/metastasis and therapy resistance (park2024advancedhumanpapillomavirus–negative pages 1-2, huang2023circulatingtumourdna pages 4-6).

6.2 HPV− immune escape and treatment resistance (expert analysis)

A 2024 HPV−-focused therapeutic review attributes worse outcomes partly to a “noninflamed and hypoxic tumor microenvironment” and reduced immune activation, including fewer CD8+ T cells and suppressed interferon pathway signals in tobacco-associated HPV− tumors (park2024advancedhumanpapillomavirus–negative pages 1-2).


7. Anatomical structures affected

Primary sites are the mucosal epithelium of the oral cavity, pharynx (including oropharynx), larynx, and hypopharynx (tasoulas2023geneticallyengineeredmouse pages 1-2, xie2024immunelandscapein pages 1-2). Complications and functional impacts reflect involvement of swallowing and voice structures in the upper aerodigestive tract (filippini2024healthrelatedqualityof pages 1-2, sharma2024dysphagiavoiceproblems pages 1-2).


8. Temporal development

8.1 Onset and course

HPV− HNSCC commonly presents in older patients and is frequently diagnosed at advanced stages in many settings (krsek2024theroleof pages 14-15, park2024advancedhumanpapillomavirus–negative pages 1-2). The clinical course varies by subsite and stage; survivorship can be characterized by prolonged functional impairment (dysphagia, xerostomia, speech/voice problems) especially after radiotherapy (filippini2024healthrelatedqualityof pages 1-2).

8.2 Staging frameworks

OPSCC staging has distinct HPV-associated vs HPV-independent rules under AJCC/UICC 8th edition; p16 status is incorporated into staging for OPSCC because of prognostic separation (gallus2023accuracyofp16 pages 1-2, tran2024advancesinhuman pages 6-7).


9. Inheritance and population

HPV− HNSCC is not typically a monogenic inherited disorder; it is best modeled as multifactorial (environmental carcinogens + somatic evolution). No germline inheritance pattern is supported by the provided evidence.

Epidemiology highlights (recent quantitative data)

  • Global burden (GBD 2019 analysis, published 2024): incidence 1,159,496 and deaths 554,146 for head and neck cancers in 2019, with ASIR 13.97 and ASDR 6.74 (zhou2024globalburdenof pages 1-2).
  • SEER OPSCC HPV testing trends (2010–2017): testing increased from 21.95% (2010) to 51.37% (2014); HPV-positive rates among tested OPSCC increased from 66.37% (2010) to 79.32% (2016) (kim2024aseerbasedanalysis pages 1-2).

10. Diagnostics

10.1 HPV testing and p16 IHC workflow (key concepts)

A guideline-aligned approach in the evidence base is: 1) p16 IHC as initial screening for OPSCC/selected HNSCC contexts, with p16 positivity defined as >70% of tumor cells showing moderate-to-strong nuclear and cytoplasmic staining (tran2024advancesinhuman pages 6-7). 2) Confirmatory nucleic-acid testing when clinical decisions depend on HPV-driven status (e.g., de-intensification or staging certainty), using DNA ISH/PCR or (preferably for transcriptional activity) RNA ISH targeting E6/E7 mRNA (tran2024advancesinhuman pages 6-7, gallus2023accuracyofp16 pages 2-4).

10.2 Discordance and false positives (quantitative)

p16 is sensitive but not fully specific. A 2024 review reported p16 overexpression in 93.2% of HPV-positive OPSCC but also 18.8% of HPV-negative patients; another cited series found 24% p16 positivity in HPV16-negative tumors, suggesting non-HPV causes of p16 upregulation (e.g., inflammation/regeneration or p53-related biology) (tran2024advancesinhuman pages 6-6).

A 2023 analysis emphasizes that p16 false-positive rates depend on HPV prevalence in the tested population and warns that p16+/HPV− tumors can have prognosis similar to p16− tumors; thus confirmatory HPV nucleic-acid testing is recommended, especially in low-prevalence settings (gallus2023accuracyofp16 pages 1-2).

Table-based evidence of false-positive rates across populations and assays is shown in Table 1 from Gallus et al. (cropped table images) (gallus2023accuracyofp16 media 97554451, gallus2023accuracyofp16 media 6b48023a, gallus2023accuracyofp16 media 4f7617b0).

10.3 p16 + p53 immunostaining as a pragmatic classifier (2024)

A 2024 Head & Neck Pathology study proposes combined p16 and p53 IHC to classify HNSCC as: - HPV-associated (HPV-A): p16+/p53 wildtype - HPV-independent (HPV-I): p16−/p53 abnormal (“mutant pattern”)

In their cohort (n=31), 28/31 were straightforward; discordant cases were resolved with molecular testing. Adding p53 IHC increased the positive predictive value (PPV) of p16 positivity for HPV-A from 91.7% to 100%; HPV-associated p53 patterns showed specificity 100% with sensitivity 83% (pakkanen2024simultaneousp53and pages 1-2, pakkanen2024simultaneousp53and pages 5-6).

10.4 Biomarkers beyond HPV status (liquid biopsy)

ctDNA is discussed as a biomarker for prognosis and surveillance in HNSCC due to tumor heterogeneity and sampling limitations; the cited review provides global burden and emphasizes the need for alternative sampling strategies, but does not provide HPV−-specific validated ctDNA thresholds in the excerpt (huang2023circulatingtumourdna pages 1-2).


11. Outcome / prognosis

HPV− OPSCC and HPV− HNSCC overall show substantially worse outcomes than HPV-associated disease, with strong population-level evidence.

Evidence type/cohort HPV-negative outcome metric Comparator (if any) Key quantitative results Notes URL/DOI
SEER OPSCC cohort, stage I-IVB, 2010-2015 (n=5,852) (zhang2023causeofdeath pages 1-2) Cause-specific and competing mortality in HPV-negative OPSCC HPV-positive OPSCC 5-year head-and-neck cancer-specific mortality: 26.9% vs 10.7%; second primary cancer mortality: 12.4% vs 4.6%; non-cancer mortality: 13.7% vs 5.8%; HPV positivity associated with lower subdistribution hazards for HNCSM (sHR 0.362, 95% CI 0.315-0.417), SPCM (0.400, 0.321-0.496), NCCM (0.460, 0.378-0.560) (zhang2023causeofdeath pages 1-2) Strong population-level evidence that HPV-negative OPSCC has substantially worse disease-specific and competing-cause outcomes than HPV-positive disease https://doi.org/10.2196/47579
General clinical prognosis in HPV-negative R/M HNSCC review (park2024advancedhumanpapillomavirus–negative pages 1-2) Overall survival in advanced/recurrent disease Not directly compared in same metric; contrasted conceptually with HPV-positive disease Review states median OS for HPV-negative R/M HNSCC is approximately 1 year, and approximately 6 months after progression on PD-1/chemotherapy-based therapy (park2024advancedhumanpapillomavirus–negative pages 1-2) Expert review frames HPV-negative disease as an unmet-need population with poorer outcomes partly related to tumor-suppressor loss and a noninflamed, hypoxic TME https://doi.org/10.1158/1535-7163.MCT-24-0281
Nature Communications biomarker study in HPV-negative HNSCC with PDX engraftment workflow; 273 resected specimens, molecular profiling subset n=88, validation cohort n=404 (waas2024molecularcorrelatesfor pages 1-2) Prognostic biomarkers LAMC2 and TGM3 Risk stratification beyond nodal status alone Cohort disease-specific survival at 3 years was 71% overall; engraftment correlated with worse outcomes and adverse features including N category (p=0.022), surgical margin (p=0.037), and nodal extracapsular extension (p=0.038); LAMC2/TGM3 significantly improved prediction beyond nodal status alone (waas2024molecularcorrelatesfor pages 1-2) Biomarker-based prognostication may identify poor-risk HPV-negative patients even among node-negative cases; translational relevance from engraftment phenotype https://doi.org/10.1038/s41467-024-55203-z
Nature Communications multicenter OCSCC cohort; HPV-negative oral cavity SCC, n=802 (muijlwijk2024hallmarksofa pages 1-2) Prognosis of CNA-quiet HPV-negative subclass CNA-other HPV-negative OCSCC 73/802 (9.1%) tumors were CNA-quiet; this subgroup had better 5-year overall survival than CNA-other tumors, with wild-type TP53, frequent CASP8/HRAS mutations, and lower regulatory T-cell density (muijlwijk2024hallmarksofa pages 1-2) Identifies a favorable-prognosis biologic subset within otherwise generally poor-prognosis HPV-negative disease; also more common in older patients, women, and fewer current smokers https://doi.org/10.1038/s41467-024-53390-3
Molecular subtype immune-landscape analysis across >700 HPV-negative HNSCC patients (3 cohorts) (xie2024immunelandscapein pages 1-2, xie2024immunelandscapein pages 2-3) Outcome heterogeneity within HPV-negative HNSCC Internal comparison across HPV-negative molecular subtypes Atypical and mesenchymal subtypes showed greater immune enrichment and T-cell exhaustion than classical/basal subtypes; study supports biologically distinct risk groups within HPV-negative disease, though no single pooled survival percentage is given in the excerpt (xie2024immunelandscapein pages 1-2, xie2024immunelandscapein pages 2-3) Useful for prognosis refinement and future precision immunotherapy design in HPV-negative HNSCC https://doi.org/10.1002/mc.23640
Comparative prognosis statements from biomarker/review literature (krsek2024theroleof pages 14-15, xie2024immunelandscapein pages 1-2, tran2024advancesinhuman pages 2-3, tran2024advancesinhuman pages 2-2) Overall and progression-free survival tendency in HPV-negative disease HPV-positive HNSCC/OPSCC Multiple reviews state HPV-positive tumors have higher OS/PFS and better radiosensitivity, whereas HPV-negative tumors are more heterogeneous and have worse outcomes; one cited comparison reported 3-year OS 57.1% in HPV-negative vs 82.4% in HPV-positive disease (tran2024advancesinhuman pages 2-3) Broad consensus across recent literature that HPV-negative HNSCC/OPSCC carries inferior prognosis relative to HPV-positive disease https://doi.org/10.1002/jmv.29746

Table: This table summarizes key outcome evidence for HPV-negative HNSCC/OPSCC, including population-level mortality differences, prognostic biomarkers, and biologically distinct prognostic subgroups. It is useful for quickly identifying where HPV-negative disease has worse outcomes and which recent markers may refine risk stratification.

Key quantitative evidence includes: - SEER OPSCC 2010–2015: 5-year head-and-neck cancer-specific mortality 26.9% (HPV−) vs 10.7% (HPV+) (zhang2023causeofdeath pages 1-2). - Translational prognostic biomarkers for HPV− HNSCC: LAMC2 and TGM3 improved outcome prediction beyond nodal status in a validation cohort of 404 patients (waas2024molecularcorrelatesfor pages 1-2). - A favorable HPV− oral cavity SCC subgroup (“CNA-quiet”, 9.1%) with lower Treg density and better survival (muijlwijk2024hallmarksofa pages 1-2).


12. Treatment

12.1 Standard-of-care (real-world implementation)

Across HPV status, core modalities remain surgery, radiotherapy, and systemic therapy, with immune checkpoint inhibitors now standard for recurrent/metastatic disease (krsek2024theroleof pages 14-15, harrington2023pembrolizumabwithor pages 1-2).

For recurrent/metastatic HNSCC, KEYNOTE-048 established pembrolizumab-based first-line therapy stratified by PD-L1 combined positive score (CPS). The updated JCO 2023 report concludes: “With a 4-year follow-up, first-line pembrolizumab and pembrolizumab-chemotherapy continued to demonstrate survival benefit versus cetuximab-chemotherapy” (harrington2023pembrolizumabwithor pages 1-2). This is particularly relevant to HPV− disease because HPV− tumors comprise a major proportion of R/M HNSCC.

Study (year, journal) Population Comparator Key efficacy results (OS/PFS/HR) Notes re HPV-negative/p16 status URL/DOI
Harrington et al. (2023, J Clin Oncol) Phase III KEYNOTE-048; recurrent/metastatic HNSCC; n=882; median follow-up 45.0 months (IQR 41.0–49.2) (harrington2023pembrolizumabwithor pages 1-2, harrington2023pembrolizumabwithor pages 2-3) Pembrolizumab alone or pembrolizumab + chemotherapy vs cetuximab-chemotherapy (EXTREME-like control) (harrington2023pembrolizumabwithor pages 1-2, harrington2023pembrolizumabwithor pages 2-3) Pembrolizumab monotherapy OS: CPS ≥20: 14.9 vs 10.8 mo, HR 0.61 (95% CI 0.46–0.81); CPS ≥1: 12.3 vs 10.4 mo, HR 0.74 (0.61–0.89); total population: 11.5 vs 10.7 mo, HR 0.81 (0.68–0.97; noninferior). Pembrolizumab + chemotherapy OS: CPS ≥20 HR 0.62 (0.46–0.84); CPS ≥1 HR 0.64 (0.53–0.78); total population HR 0.71 (0.59–0.85). PFS2: improved in key PD-L1 groups; e.g., pembrolizumab CPS ≥20 HR 0.64, CPS ≥1 HR 0.79; pembrolizumab-chemo CPS ≥1 HR 0.66. 4-year follow-up continued to show survival benefit (harrington2023pembrolizumabwithor pages 1-2, harrington2023pembrolizumabwithor pages 2-3) Trial stratified by p16 status for oropharyngeal cancers; subgroup analyses generally favored pembrolizumab in HPV-negative or smoking-associated disease, making results highly relevant to HPV-negative R/M HNSCC even though efficacy was reported primarily by PD-L1 CPS rather than HPV status (harrington2023pembrolizumabwithor pages 1-2) https://doi.org/10.1200/JCO.21.02508
Oridate et al. (2024, Int J Clin Oncol) Japanese KEYNOTE-048 cohort; R/M HNSCC; n=67; pembrolizumab n=23, pembrolizumab-chemo n=25, EXTREME n=19; median follow-up 71.0 months (range 61.2–81.5) (oridate2024firstlinepembrolizumabwith pages 1-2) Pembrolizumab or pembrolizumab + chemotherapy vs EXTREME (oridate2024firstlinepembrolizumabwith pages 1-2) 5-year OS, pembrolizumab vs EXTREME: CPS ≥20: 35.7% vs 12.5%, HR 0.38 (95% CI 0.13–1.05); CPS ≥1: 23.8% vs 12.5%, HR 0.70 (0.34–1.45); total: 30.4% vs 10.5%, HR 0.54 (0.27–1.07). Pembrolizumab-chemo vs EXTREME: CPS ≥20: 20.0% vs 14.3%, HR 0.79 (0.27–2.33); CPS ≥1: 10.5% vs 14.3%, HR 1.18 (0.56–2.48); total: 8.0% vs 12.5%, HR 1.11 (0.57–2.16). Earlier analysis cited median OS in CPS ≥20: 28.2 vs 13.3 mo, HR 0.29 (0.09–0.89) (oridate2024firstlinepembrolizumabwith pages 1-2) Stratified by p16/HPV status for oropharyngeal cancers and PD-L1 22C3 CPS. Small subgroup study, but useful for long-term survivorship benchmarks in HPV-negative–relevant clinical populations (oridate2024firstlinepembrolizumabwith pages 1-2) https://doi.org/10.1007/s10147-024-02632-x
Black et al. (2023, Front Oncol) Real-world US 1L pembrolizumab in R/M HNSCC; n=646 analyzed (431 pembrolizumab monotherapy; 215 pembrolizumab + chemotherapy); median follow-up 8.3 mo (range 0.0–35.1) (black2023realworldtreatmentpatterns pages 1-2, black2023realworldtreatmentpatterns pages 8-9, black2023realworldtreatmentpatterns pages 3-5, black2023realworldtreatmentpatterns pages 5-6) Observational comparison of pembrolizumab monotherapy vs pembrolizumab + chemotherapy; no randomized control arm (black2023realworldtreatmentpatterns pages 1-2, black2023realworldtreatmentpatterns pages 3-5) Pembrolizumab monotherapy: rwOS 12.1 mo (95% CI 9.2–15.1), rwToT 4.2 mo (3.5–4.6), rwTTNT 6.5 mo (5.4–7.4). Pembrolizumab + chemotherapy: rwOS 11.9 mo (9.0–16.0), rwToT 4.9 mo (3.8–5.6), rwTTNT 6.6 mo (5.8–8.3). Survival rates overall: 6 mo 68.0%, 12 mo 50.3%, 24 mo 33.5% (black2023realworldtreatmentpatterns pages 1-2, black2023realworldtreatmentpatterns pages 8-9, black2023realworldtreatmentpatterns pages 3-5) HPV-positive status and lower ECOG PS were associated with longer rwOS; monotherapy was less likely in HPV-negative tumors. Thus, HPV-negative patients likely represent a poorer-prognosis fraction of the real-world cohort, supporting use of these data as pragmatic context for HPV-negative disease (black2023realworldtreatmentpatterns pages 1-2, black2023realworldtreatmentpatterns pages 3-5, black2023realworldtreatmentpatterns pages 5-6) https://doi.org/10.3389/fonc.2023.1160144
Cirillo et al. (2024, BMC Cancer) Single-center retrospective real-world cohort; PD-L1-positive R/M HNSCC treated Feb 2021–Mar 2023; n=92 received pembrolizumab-based 1L therapy (cirillo2024pembrolizumabbasedfirstlinetreatment pages 1-2) Pembrolizumab monotherapy vs pembrolizumab-based chemoimmunotherapy in routine practice (cirillo2024pembrolizumabbasedfirstlinetreatment pages 1-2) Median PFS 4 mo; median OS 8 mo overall. Pembrolizumab monotherapy had worse OS than chemoimmunotherapy (log-rank p=.001; HR 2.7). Outcomes improved with CPS ≥20: PFS HR 0.50 (p=.005); OS HR 0.57 (p=.04). ECOG PS2 independently associated with worse PFS and OS. Authors note that, unlike KEYNOTE-048, pembrolizumab regimens did not show statistically significant PFS/ORR improvement in trial reports and that OS curves plateaued in ~20–30% by 4 years (cirillo2024pembrolizumabbasedfirstlinetreatment pages 1-2) HPV status incorporated in disease framing but not the primary analytic stratifier. Findings are relevant to HPV-negative disease because frailer real-world patients often include poorer-risk HPV-negative tumors and because PD-L1-positive R/M HNSCC practice decisions often mirror those in HPV-negative populations (cirillo2024pembrolizumabbasedfirstlinetreatment pages 1-2) https://doi.org/10.1186/s12885-024-12155-3

Table: This table summarizes pivotal trial and real-world evidence for first-line systemic therapy in recurrent/metastatic HNSCC, emphasizing findings most relevant to HPV-negative disease. It highlights long-term KEYNOTE-048 results, Japanese 5-year follow-up, and real-world pembrolizumab outcomes for practical comparison.

12.2 Real-world evidence (2023–2024)

A large US real-world cohort (published 22 May 2023) evaluated first-line pembrolizumab in R/M HNSCC and reported median real-world OS (rwOS) ~12 months in both pembrolizumab monotherapy and pembrolizumab+chemotherapy groups; HPV-positive status was associated with longer rwOS, implying HPV− patients are an adverse-risk subset in practice (black2023realworldtreatmentpatterns pages 1-2, black2023realworldtreatmentpatterns pages 3-5).

12.3 HPV-negative-specific unmet need and emerging strategies (expert view)

A 2024 HPV−-focused therapeutic review emphasizes that durable responses to PD-1 blockade occur in only a subset, and cetuximab responses are “short-lived,” with resistance linked to EGFR–c-MET pathway crosstalk, motivating dual-targeting strategies in HPV− disease (park2024advancedhumanpapillomavirus–negative pages 1-2).

12.4 HPV−/p16− clinical trials (examples)

HPV−-restricted (or explicitly p16−/HPV-unrelated) trials in the retrieved ClinicalTrials.gov evidence include neoadjuvant immunoradiotherapy strategies and combined immunotherapy-RT regimens (NCT03624231 chunk 1, NCT03635164 chunk 2, NCT06161545 chunk 1).

NCT Population (HPV-/p16-) Setting Interventions Phase Status Enrollment Primary endpoint(s) Notes
NCT03624231 Non-resectable, locally advanced HPV-negative/p16-negative HNSCC; central confirmation required; p16 negativity defined as ≤70% stained cells (NCT03624231 chunk 1, NCT03624231 chunk 2) Definitive non-surgical local therapy Arm 1: durvalumab + tremelimumab + radiotherapy; Arm 2: durvalumab + radiotherapy (NCT03624231 chunk 1, NCT03624231 chunk 2) Phase II (NCT03624231 chunk 1) Completed (NCT03624231 chunk 1) 18 Feasibility (treatment discontinuations due to toxicity) and efficacy including 1-year progression-free survival; also in-field PFS and 1-year distant metastasis-free survival (NCT03624231 chunk 1) Arm 1 was stopped after interim analyses; QoL endpoints included EORTC QLQ-H&N35 and QLQ-C30 (NCT03624231 chunk 1)
NCT03635164 Resectable HPV- and/or p16-negative intermediate/high-risk HNSCC; excludes p16-positive OPSCC (NCT03635164 chunk 2) Neoadjuvant preoperative therapy before surgery Radiotherapy/SBRT with durvalumab prior to surgical resection (NCT03635164 chunk 2) Phase I/Ib suggested in record text (NCT03635164 chunk 2) Completed (from trial search result) (NCT03635164 chunk 2) 21 Not explicitly reported in retrieved chunk; trial described as neoadjuvant RT + durvalumab with planned FACT H&N v4 QoL collection (NCT03635164 chunk 2) University of Colorado study; window-style preoperative immunoradiotherapy approach (NCT03635164 chunk 2)
NCT03389477 p16INK4a-negative, HPV-unrelated HNSCC (trial retrieval listing) Multimodality treatment around chemoradiation Neoadjuvant palbociclib monotherapy, concurrent chemoradiation, then adjuvant palbociclib monotherapy (trial retrieval listing) Phase II (trial retrieval listing) Active, not recruiting (trial retrieval listing) 26 Not available in retrieved evidence chunks Explicitly designed for HPV-unrelated/p16-negative disease; detailed endpoints not available in retrieved chunks (trial retrieval listing)
NCT06935188 HPV-negative, anti-PD-1-resistant recurrent/metastatic HNSCC (trial retrieval listing) Recurrent/metastatic, post–PD-1 resistance Dalpiciclib plus cetuximab vs cetuximab alone (trial retrieval listing) Phase II (trial retrieval listing) Recruiting (trial retrieval listing) 98 Not available in retrieved evidence chunks Targets CDK4/6 + EGFR strategy in resistant HPV-negative disease; detailed endpoints not available in retrieved chunks (trial retrieval listing)
NCT05879484 PD-L1-positive, HPV-negative recurrent/metastatic HNSCC in phase II; phase Ib included broader SCC populations including HPV-positive and HPV-negative patients (NCT05879484 chunk 1) Front-line recurrent/metastatic systemic therapy Pembrolizumab + valemetostat (EZH1/2 dual inhibitor) (NCT05879484 chunk 1) Phase Ib/II (NCT05879484 chunk 1) Withdrawn (NCT05879484 chunk 1) 0 Phase II disease control rate; Phase Ib safety/RP2D; secondary endpoints included PK, OS, and 6-month PFS (NCT05879484 chunk 1) Study never opened because CRADA was never executed (NCT05879484 chunk 1)
NCT06161545 Resectable HPV-unrelated HNSCC; for oropharyngeal tumors, p16-negative status specified (NCT06161545 chunk 1) Neoadjuvant window-of-opportunity, resectable disease Arm 1: pembrolizumab + N-803; Arm 2: pembrolizumab + N-803 + PD-L1 t-haNK cells (NCT06161545 chunk 1) Phase II (NCT06161545 chunk 1) Recruiting (NCT06161545 chunk 1) 40 Pathologic tumor response (≤50% viable tumor in resected primary tumor bed) (NCT06161545 chunk 1) Secondary endpoints include safety, recurrence-free survival, and overall survival at 1 and 2 years (NCT06161545 chunk 1)
NCT02358031 Reference trial in untreated recurrent/metastatic HNSCC; stratified by p16 status for oropharyngeal cancers rather than restricted to HPV-negative disease (harrington2023pembrolizumabwithor pages 1-2, oridate2024firstlinepembrolizumabwith pages 1-2) First-line recurrent/metastatic benchmark Pembrolizumab alone or pembrolizumab + chemotherapy vs cetuximab-chemotherapy (harrington2023pembrolizumabwithor pages 1-2, oridate2024firstlinepembrolizumabwith pages 1-2) Phase III (harrington2023pembrolizumabwithor pages 1-2) Completed/long-term follow-up reported (harrington2023pembrolizumabwithor pages 1-2, oridate2024firstlinepembrolizumabwith pages 1-2) 882 overall; Japanese subgroup 67 (harrington2023pembrolizumabwithor pages 1-2, oridate2024firstlinepembrolizumabwith pages 1-2) Overall survival and progression-free survival by PD-L1 CPS; updated analyses also reported PFS2 (harrington2023pembrolizumabwithor pages 1-2, harrington2023pembrolizumabwithor pages 2-3) Practice-changing reference standard for R/M HNSCC; highly relevant comparator for HPV-negative populations though not HPV-negative-exclusive (harrington2023pembrolizumabwithor pages 1-2, oridate2024firstlinepembrolizumabwith pages 1-2)

Table: This table summarizes retrieved ClinicalTrials.gov studies and one pivotal reference trial relevant to HPV-negative or p16-negative HNSCC. It highlights populations, treatment settings, interventions, phases, endpoints, and key operational notes such as interim stopping or withdrawal.

12.5 MAXO (treatment action ontology) suggestions

  • Surgery (MAXO: surgical procedure)
  • Radiotherapy (MAXO: radiation therapy)
  • Platinum-based chemotherapy (MAXO: chemotherapy)
  • Anti–PD-1 therapy (pembrolizumab/nivolumab) (MAXO: immunotherapy)
  • Anti-EGFR therapy (cetuximab) (MAXO: targeted therapy)

(MAXO IDs are suggested categories; not explicitly enumerated in the retrieved evidence.)


13. Prevention

13.1 Primary prevention (HPV− relevance)

Because tobacco and alcohol account for a large proportion of HNSCC burden and are central in HPV− etiology, risk-factor reduction is the most direct prevention strategy for HPV− disease (huang2023circulatingtumourdna pages 1-2, gribb2023humanpapillomavirus pages 1-3).

A prevention-oriented review explicitly states: “The main risk factors for oropharyngeal SCCa have been multi-factorial, including tobacco and alcohol use” (published April 2023) (gribb2023humanpapillomavirus pages 1-3).

13.2 HPV vaccination (indirect relevance to HPV− burden)

HPV vaccination is the primary prevention strategy for HPV-associated OPSCC and may alter relative proportions of HPV− vs HPV+ OPSCC over time.

A 2023 public policy review reports vaccine efficacy against oral HPV infection of 88–93%, and notes that as of 2022, 122/195 (63%) WHO member states had national HPV vaccination programs, with 41/122 (34%) gender-neutral coverage (ndon2023humanpapillomavirusassociatedoropharyngeal pages 1-3). A 2024 Nature Reviews Clinical Oncology review notes HPV is attributed to 31% of oropharyngeal cancers worldwide and that vaccination will likely prevent HPV-associated cancers beyond cervical cancer (malagon2024epidemiologyofhpvassociated pages 1-4).


14. Other species / natural disease

No naturally occurring HPV− HNSCC analogue in non-human species was identified in the retrieved evidence.


15. Model organisms and experimental systems (HPV− translational research)

Preclinical work in HPV− HNSCC relies on complementary in vitro and in vivo model classes, with 4NQO carcinogen models, PDX, and GEMMs/transposon systems being particularly prominent for carcinogen-associated biology.

Model type What it captures (strengths) Key limitations Typical use-cases
Cell lines / 2D cultures Inexpensive, fast, easy to maintain and genetically manipulate; useful for mechanistic studies, pathway perturbation, and high-throughput drug screening; some patient-derived short-term cultures retain features of source tumors better than long-passaged lines (chaves2023preclinicalmodelsin pages 3-4, chaves2023preclinicalmodelsin pages 2-3, tinhofer2020preclinicalmodelsof pages 4-5) Poorly recapitulate native histology and tumor microenvironment; prone to clonal selection, genomic instability, and drift from original tumors; limited immune/stromal context (chaves2023preclinicalmodelsin pages 3-4, chaves2023preclinicalmodelsin pages 2-3, tinhofer2020preclinicalmodelsof pages 4-5) Rapid target validation, signaling studies, CRISPR/RNAi perturbation, initial drug sensitivity and resistance screens (chaves2023preclinicalmodelsin pages 3-4, tinhofer2020preclinicalmodelsof pages 4-5)
Spheroids / organoids (3D) Better preserve 3D architecture, intratumoral heterogeneity, and diffusion barriers; can model slower proliferation, reduced drug penetration, and increased treatment resistance; patient-derived organoids can retain genomic and histologic characteristics of parent tumors (chaves2023preclinicalmodelsin pages 3-4, chaves2023preclinicalmodelsin pages 2-3, tinhofer2020preclinicalmodelsof pages 4-5) Technically more complex; still being standardized; time- and cost-intensive; extracellular matrix dependence and incomplete immune/stromal representation unless specifically reconstituted (chaves2023preclinicalmodelsin pages 3-4, tinhofer2020preclinicalmodelsof pages 4-5) Ex vivo drug testing, personalized therapy assessment, plasticity/EMT studies, modeling cisplatin resistance and heterogeneous treatment response (chaves2023preclinicalmodelsin pages 3-4, tinhofer2020preclinicalmodelsof pages 4-5)
Microfluidic / organotypic / host–microbe co-culture models Preserve tissue architecture and enable study of epithelial-stromal-immune and microbiome interactions under controlled conditions; useful for dissecting host–bacterial interactions relevant to oral/HPV-negative carcinogenesis (chaves2023preclinicalmodelsin pages 3-4, chaves2023preclinicalmodelsin pages 2-3, tasoulas2023geneticallyengineeredmouse pages 5-7) Expensive, labor-intensive, lower throughput; technical setup can limit widespread adoption; often lack full systemic physiology (chaves2023preclinicalmodelsin pages 3-4, chaves2023preclinicalmodelsin pages 2-3) Tumor–microenvironment crosstalk, microbiome-cancer interaction studies, invasion assays, testing local immune or stromal modulation (chaves2023preclinicalmodelsin pages 3-4, tasoulas2023geneticallyengineeredmouse pages 5-7)
Patient-derived xenografts (PDX) Retain tumor histology, genetics, and heterogeneity; often correlate with aggressiveness; useful bridge between patient tumors and in vivo therapeutic testing; can support derivation of secondary cultures/organoids (chaves2023preclinicalmodelsin pages 2-3, tinhofer2020preclinicalmodelsof pages 4-5, zohud2023towardssystemgenetics pages 2-3) Time-consuming and expensive; mouse microenvironment replaces human stroma over time; standard PDX lack intact human immunity, limiting immunotherapy studies; prolonged passaging risks divergence (chaves2023preclinicalmodelsin pages 2-3, tinhofer2020preclinicalmodelsof pages 4-5, zohud2023towardssystemgenetics pages 2-3) Biomarker discovery, in vivo efficacy testing, resistance modeling, translational validation of poor-prognosis molecular phenotypes in HPV-negative HNSCC (chaves2023preclinicalmodelsin pages 2-3, waas2024molecularcorrelatesfor pages 1-2, zohud2023towardssystemgenetics pages 2-3)
4NQO carcinogen mouse model Immunocompetent carcinogen-induced model that closely resembles multistep oral carcinogenesis and tobacco-associated disease; preserves genetic heterogeneity and native immune context; useful for initiation-to-progression studies and immunotherapy development (tinhofer2020preclinicalmodelsof pages 4-5, chaves2023preclinicalmodelsin pages 3-4, tasoulas2023geneticallyengineeredmouse pages 5-7) Long latency (often many months, with metastasis studies taking longer); tumor onset can be variable; strongest for oral cavity/tongue rather than all head and neck subsites (tinhofer2020preclinicalmodelsof pages 4-5, chaves2023preclinicalmodelsin pages 3-4, tasoulas2023geneticallyengineeredmouse pages 5-7) Studying carcinogenesis, premalignant-to-malignant transition, immune suppression, chemoprevention, and testing therapies in tobacco-mimetic HPV-negative settings (tinhofer2020preclinicalmodelsof pages 4-5, chaves2023preclinicalmodelsin pages 3-4)
GEMMs / transposon-based mouse models Allow causal testing of specific drivers in controlled genetic backgrounds; can recapitulate stromal and immune microenvironments because tumors arise in situ; luciferase/reporters can enable longitudinal tracking; transposon systems accelerate identification of cooperating genes (tasoulas2023geneticallyengineeredmouse pages 5-7, tinhofer2020preclinicalmodelsof pages 4-5) Often costly and slow; low incidence or incomplete penetrance in some models; some require added carcinogen (e.g., 4NQO) to produce frank malignancy; many available models are not fully representative of human HPV-negative oropharyngeal disease (tasoulas2023geneticallyengineeredmouse pages 5-7, tinhofer2020preclinicalmodelsof pages 4-5, zohud2023towardssystemgenetics pages 2-3) Functional validation of TP53/CDKN2A/FAT1/PIK3CA-type drivers, lineage and progression studies, immune-oncology experiments, modeling initiation and metastatic spread in vivo (tasoulas2023geneticallyengineeredmouse pages 5-7, tinhofer2020preclinicalmodelsof pages 4-5)

Table: This table summarizes the main preclinical systems used to study HPV-negative head and neck squamous cell carcinoma, highlighting what each model captures, its limitations, and its best-fit applications. It is useful for matching a research question to the most appropriate model platform.

Key expert consensus points: - 4NQO: immunocompetent and resembles multistep oral carcinogenesis but with long latency (tinhofer2020preclinicalmodelsof pages 4-5, chaves2023preclinicalmodelsin pages 3-4). - PDX: preserves heterogeneity but lacks human immunity and is resource intensive (chaves2023preclinicalmodelsin pages 2-3, zohud2023towardssystemgenetics pages 2-3). - GEMMs: enable causal tests of TP53/CDKN2A-type drivers; some need 4NQO to achieve frank malignancy (tasoulas2023geneticallyengineeredmouse pages 5-7).


Recent developments (2023–2024 emphasis) and “expert opinions” (authoritative synthesis)

1) HPV− molecular stratification is maturing: HPV− HNSCC is not a single entity; transcriptomic subtype immune landscapes (classical/basal/mesenchymal/atypical) and CNA-quiet genomic subclasses support precision stratification and trial design (xie2024immunelandscapein pages 2-3, muijlwijk2024hallmarksofa pages 1-2).

2) Immune checkpoint therapy is standard but insufficient: KEYNOTE-048 continues to support pembrolizumab-based first-line R/M therapy with durable benefit in subsets, while HPV−-specific reviews emphasize a noninflamed/hypoxic TME and tumor suppressor loss contributing to resistance (harrington2023pembrolizumabwithor pages 1-2, park2024advancedhumanpapillomavirus–negative pages 1-2).

3) Diagnostics are shifting toward multimodal confirmation: Recognition of p16 discordance and false positives supports confirmatory HPV nucleic-acid testing and/or combined p16+p53 IHC approaches to classify HPV-associated vs HPV-independent tumors, especially where treatment decisions depend on HPV status (pakkanen2024simultaneousp53and pages 5-6, tran2024advancesinhuman pages 6-7, gallus2023accuracyofp16 media 97554451).


Notes on evidence gaps (from retrieved sources)

  • A single MONDO/ICD/MeSH identifier for “HPV-negative HNSCC” was not explicitly retrievable in the provided evidence; operationally, this entity is captured via site-specific HNSCC diagnosis + HPV-negative/HPV-independent classification (artifact-00).
  • The provided phenotypic evidence is strongest for survivorship QoL and treatment sequelae; classic presenting symptoms (e.g., neck mass, odynophagia, hoarseness) are widely known clinically but were not explicitly enumerated in the retrieved excerpts.

Embedded visual evidence

  • p16 IHC false-positive rates across populations and assays (Table 1 cropped images) (gallus2023accuracyofp16 media 97554451, gallus2023accuracyofp16 media 6b48023a, gallus2023accuracyofp16 media 4f7617b0).

References

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