Malignant Mesothelioma

1. Disease Information

2026-05-09
Falcon MONDO:0006292 Model: Edison Scientific Literature 29 citations

1. Disease Information

1.1 Definition and overview

1.2 Key identifiers (ontology/coding)

The retrieved full texts did not contain MONDO/MeSH/ICD/Orphanet codes. These should be populated directly from those terminology resources. - MONDO: not found in retrieved sources (zahiu2025molecularinsightsinto pages 1-2, ettinger2023mesotheliomaperitonealversion pages 1-2) - MeSH: not found in retrieved sources (zahiu2025molecularinsightsinto pages 1-2, ettinger2023mesotheliomaperitonealversion pages 1-2) - ICD-10 / ICD-11: not found in retrieved sources (zahiu2025molecularinsightsinto pages 1-2, ettinger2023mesotheliomaperitonealversion pages 1-2) - Orphanet: not found in retrieved sources (zahiu2025molecularinsightsinto pages 1-2, ettinger2023mesotheliomaperitonealversion pages 1-2)

1.3 Synonyms / alternative names (common in practice)

1.4 Evidence provenance (patient-level vs aggregated)


2. Etiology

2.1 Primary causal factors

Environmental/occupational exposure - Asbestos exposure is repeatedly identified as the dominant causal factor for pleural mesothelioma, with some reviews stating >80% of pleural cases are linked to asbestos. (bertin2023thecurrenttreatment pages 1-2, cedres2023currentstateofthearttherapy pages 1-2) - A dose–response relationship is emphasized in pleural mesothelioma: cumulative exposure, duration, and long latency increase risk. (zahiu2025molecularinsightsinto pages 1-2)

Genetic predisposition - Germline BAP1 pathogenic variants are highlighted as an important inherited risk factor; ASCO notes mesothelioma patients “often have germline mutations, most commonly in…BAP1,” supporting offering germline testing broadly. (kindler2025treatmentofpleural pages 2-3)

2.2 Risk factors (genetic + environmental)

2.3 Protective factors

No protective genetic or environmental factors were explicitly identified in the retrieved sources.

2.4 Gene–environment interaction

A clinically important interaction is suggested by the co-occurrence of strong environmental exposure (asbestos) with genetic susceptibility (BAP1). While detailed gene–environment quantitative interaction models were not present in the retrieved excerpts, the guideline-level emphasis on universal germline testing implies that inherited susceptibility can meaningfully alter risk and counseling, especially in asbestos-exposed populations. (kindler2025treatmentofpleural pages 2-3, lewandowska2024diagnosisandtreatment pages 1-2)


3. Phenotypes

3.1 Key symptoms/signs (with suggested HPO mapping)

Common pleural presentations include dyspnea, pleural effusion, chest pain, cough, and weight loss. Jain et al. (2024) reports pleural effusion in ~90% of patients and lists dyspnea, chest pain, cough, weight loss, and chest wall masses as common presenting features. (jain2024malignantpleuralmesothelioma pages 1-2)

Table (click to expand)
Phenotype (plain language) Suggested HPO term label HPO ID Frequency/notes Typical context (pleural vs peritoneal) Evidence type (human clinical/review)
Shortness of breath / dyspnea Dyspnea Common presenting symptom; reported among common features and in one review as part of symptoms occurring in ~90% with pain Pleural Human clinical/review (jain2024malignantpleuralmesothelioma pages 1-2, tyagi2024germlinebap1mutation pages 14-17)
Pleural effusion Pleural effusion ~90% of patients in one review; right-sided in ~60% in another source Pleural Human clinical/review (jain2024malignantpleuralmesothelioma pages 1-2, tyagi2024germlinebap1mutation pages 14-17)
Chest pain / chest wall pain Chest pain Common; grouped with dyspnea/pain among major presenting symptoms; adverse prognostic factor in one source Pleural Human clinical/review (jain2024malignantpleuralmesothelioma pages 1-2, tyagi2024germlinebap1mutation pages 14-17, tyagi2024germlinebap1mutation pages 11-14)
Cough Cough Common presenting symptom; can be unproductive in pleural mesothelioma Pleural Human clinical/review (jain2024malignantpleuralmesothelioma pages 1-2, tyagi2024germlinebap1mutation pages 11-14, tyagi2024germlinebap1mutation pages 14-17)
Weight loss Weight loss Common presenting feature Pleural Human clinical/review (jain2024malignantpleuralmesothelioma pages 1-2)
Chest wall mass Thoracic mass Reported as a presenting manifestation Pleural Human clinical/review (jain2024malignantpleuralmesothelioma pages 1-2)
Abdominal distension Abdominal distension Reported for peritoneal mesothelioma presentations Peritoneal Human clinical/review (tyagi2024germlinebap1mutation pages 14-17)
Abdominal pain Abdominal pain Reported for peritoneal mesothelioma presentations Peritoneal Human clinical/review (tyagi2024germlinebap1mutation pages 14-17)
Disseminated malignant process at diagnosis Neoplasm of the pleura Often disseminated at diagnosis because of long latency and late presentation Mainly pleural Human clinical/review (lewandowska2024diagnosisandtreatment pages 1-2)
Poor performance status / functional decline Reduced performance status Reported as a negative prognostic feature rather than a diagnostic symptom Pleural/peritoneal Human clinical/review (lewandowska2024diagnosisandtreatment pages 1-2, tyagi2024germlinebap1mutation pages 11-14)
Hyperleukocytosis / elevated white blood cell count Leukocytosis Negative prognostic factor; one source specifies WBC ≥8.3×10^9/L Pleural/peritoneal Human clinical/review (lewandowska2024diagnosisandtreatment pages 1-2, tyagi2024germlinebap1mutation pages 11-14)
Elevated C-reactive protein Increased circulating C-reactive protein concentration Negative prognostic factor in pleural mesothelioma Pleural Human clinical/review (lewandowska2024diagnosisandtreatment pages 1-2)
Thrombocytosis Thrombocytosis Negative prognostic factor; one source specifies platelet count >400,000/µL Pleural/peritoneal Human clinical/review (tyagi2024germlinebap1mutation pages 11-14, tyagi2024germlinebap1mutation pages 14-17)
Elevated lactate dehydrogenase Increased circulating lactate dehydrogenase concentration Negative prognostic factor; one source specifies LDH >500 IU/L Pleural/peritoneal Human clinical/review (tyagi2024germlinebap1mutation pages 11-14, tyagi2024germlinebap1mutation pages 14-17)
Low hemoglobin / anemia Anemia Reported as a poor prognostic feature in one source Pleural/peritoneal Human clinical/review (tyagi2024germlinebap1mutation pages 14-17)

Table: This table summarizes key clinical symptoms, signs, and laboratory abnormalities reported in the retrieved mesothelioma sources, organized by likely HPO mapping and disease context. It is useful for populating phenotype fields in a disease knowledge base while retaining source-linked evidence.

3.2 Onset, severity, progression

3.3 Quality of life impact

The ASCO guideline update indicates that quality-of-life domains were key outcomes in trials informing recommendations, and that in MARS2 multiple QOL domains favored chemotherapy alone versus surgery + chemo in a randomized comparison. (kindler2025treatmentofpleural pages 3-5)


4. Genetic / Molecular Information

4.1 Key genes and alterations (current consensus)

Mesothelioma genomic landscapes are dominated by tumor suppressor loss-of-function rather than recurrent activating oncogenes. - Commonly altered genes cited in recent reviews include BAP1, CDKN2A, NF2. (cedres2023currentstateofthearttherapy pages 1-2, jain2024malignantpleuralmesothelioma pages 1-2, bertin2023thecurrenttreatment pages 1-2) - OpenTargets disease–target association evidence also links MM/MPM with WT1, BAP1, CDKN2A, SETD2, TP53, LATS1/2, PDCD1, among others, reflecting both diagnostic markers and therapeutic target biology. (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma)

4.2 Somatic vs germline

4.3 Diagnostic molecular pathology markers

Table (click to expand)
Gene/marker Alteration type (somatic/germline; LOF/deletion etc.) Clinical use (diagnosis/prognosis/therapy selection) Assay (IHC/FISH/seq) Notes Key citation (author year, PMID if given in context—otherwise leave blank)
BAP1 Frequent loss/inactivation; tumor suppressor alteration; includes germline pathogenic variants and somatic loss Diagnosis, hereditary risk assessment, prognosis IHC; sequencing Loss of nuclear BAP1 expression is highlighted as a key diagnostic marker; ~70% of epithelioid pleural mesotheliomas show BAP1 loss by IHC; germline BAP1 is associated with younger age and better prognosis in some series; ASCO notes mesothelioma often has germline mutations, most commonly BAP1, supporting routine germline testing discussions (chiec2024immunotherapyfortreatment pages 1-2, lewandowska2024diagnosisandtreatment pages 1-2, kindler2025treatmentofpleural pages 2-3) Chiec 2024; Lewandowska 2024; Kindler 2025
MTAP Loss, often reflecting adjacent CDKN2A deletion biology Diagnosis IHC MTAP loss is described as an almost ideal surrogate for gold-standard p16/CDKN2A FISH deletion testing; especially useful when tissue is limited (zahiu2025molecularinsightsinto pages 1-2, chiec2024immunotherapyfortreatment pages 1-2) Zahiu 2025; Chiec 2024
CDKN2A / p16 Homozygous deletion; recurrent chromosomal loss at 9p21 Diagnosis; adverse biology/prognostic context FISH; MTAP IHC surrogate >90% of sarcomatoid pleural mesotheliomas reportedly have CDKN2A homozygous deletion or MTAP loss; p16/CDKN2A FISH is treated as the gold-standard ancillary diagnostic approach in retrieved sources (chiec2024immunotherapyfortreatment pages 1-2, zahiu2025molecularinsightsinto pages 1-2, tyagi2024germlinebap1mutation pages 14-17) Chiec 2024; Zahiu 2025
NF2 Recurrent tumor suppressor loss/inactivation Molecular characterization; prognostic/biologic relevance Sequencing One of the most frequently altered genes in pleural mesothelioma; part of the recurrent chromosome 22q loss pattern described in reviews (cedres2023currentstateofthearttherapy pages 1-2, jain2024malignantpleuralmesothelioma pages 1-2, tyagi2024germlinebap1mutation pages 14-17, OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Cedres 2023; Jain 2024
TP53 Tumor suppressor alteration (subset) Molecular characterization Sequencing Listed among recurrently altered genes/targets in disease-target evidence; less emphasized diagnostically than BAP1/MTAP/CDKN2A in retrieved context (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Open Targets context
SETD2 Tumor suppressor / epigenetic regulator alteration Molecular characterization Sequencing Included among associated targets in disease-target evidence and recent mesothelioma molecular reviews; supports chromatin dysregulation theme (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Open Targets context
LATS1 / LATS2 Tumor suppressor loss/inactivation Molecular characterization Sequencing Included in disease-target associations and reflects Hippo pathway disruption noted in mesothelioma molecular landscapes (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Open Targets context
WT1 Disease-associated marker/target (not framed here as recurrent genomic driver) Diagnostic immunophenotyping context; disease association IHC (typical clinical use), not specified in retrieved text Open Targets lists WT1 among associated targets for malignant mesothelioma; retrieved context does not provide detailed assay-performance claims for this report (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Open Targets context
PD-L1 Protein expression biomarker Prognosis; possible therapy-response exploration IHC PD-L1 expression occurs in ~20–40% of patients and is associated with poorer prognosis, but predictive value for immunotherapy response remains unconfirmed in retrieved reviews (cedres2023currentstateofthearttherapy pages 1-2) Cedres 2023
Tumor mutational burden (TMB) Generally low genomic mutation burden Therapy-selection research biomarker NGS / sequencing Pleural mesothelioma is described as having low TMB, often <2 nonsynonymous mutations/Mb in most samples, contributing to biomarker challenges for immunotherapy (chiec2024immunotherapyfortreatment pages 1-2, bertin2023thecurrenttreatment pages 1-2) Chiec 2024; Bertin 2023
BAP1 + MTAP panel Combined loss-marker strategy Diagnostic refinement / cost-effectiveness IHC panel Recent review emphasizes combined BAP1 and MTAP IHC as a practical, cost-effective adjunct for difficult mesothelioma diagnosis (zahiu2025molecularinsightsinto pages 17-19) Zahiu 2025
Broad germline cancer predisposition testing Germline pathogenic variants, especially BAP1 Hereditary cancer risk assessment; family counseling; prognosis Germline sequencing / panel testing ASCO update states mesothelioma patients often harbor germline mutations, most commonly BAP1, and notes universal germline testing should be offered; this is a current implementation-oriented recommendation rather than a single-marker assay claim (kindler2025treatmentofpleural pages 2-3) Kindler 2025

Table: This table summarizes the key molecular and diagnostic markers for mesothelioma retrieved from the available context, including their alteration types, clinical uses, and typical assays. It is useful for knowledge-base population because it distinguishes diagnostic markers from broader molecular features and hereditary risk genes.

4.4 Tumor immune microenvironment / biomarkers

  • The pleural mesothelioma microenvironment is described as relatively immunosuppressive, and PD-L1 expression occurs in ~20–40% of patients and is associated with worse prognosis, though predictive value for immunotherapy response remains unconfirmed. (cedres2023currentstateofthearttherapy pages 1-2)

4.5 Epigenetics and chromatin regulation

  • Evidence of epigenetic/chromatin regulator involvement is supported by recurrent alterations in genes such as SETD2 (OpenTargets association) and the emphasis on tumor suppressor/epigenetic regulator alterations in molecular overviews. (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma)

5. Environmental Information

5.1 Environmental/occupational factors

  • Asbestos remains central in contemporary accounts of pleural mesothelioma pathogenesis and continuing incidence. (lewandowska2024diagnosisandtreatment pages 1-2, bertin2023thecurrenttreatment pages 1-2)
  • A regional Italian surveillance study (Emilia-Romagna, 1996–2023; n=3513 cases) found occupational exposure accounted for 82% of cases overall and increased to 88% in the most recent period; most cases were male (72%) and >65 years (79%). (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma)

5.2 Lifestyle factors

No lifestyle protective or causal factors (e.g., smoking, diet) were specifically extracted from the retrieved sources.

5.3 Infectious agents

No infectious etiologies were identified in retrieved sources.


6. Mechanism / Pathophysiology

6.1 Causal chain (high-level)

6.2 Immune involvement

  • Immunosuppressive tumor microenvironment described in recent treatment-focused reviews (regulatory immune populations; macrophage/MDSC emphasis in Cedres 2023), potentially contributing to variable immunotherapy response. (cedres2023currentstateofthearttherapy pages 1-2)

6.3 Suggested ontology terms (mechanisms)

GO biological process (suggested; IDs not provided in retrieved text): - inflammatory response; response to oxidative stress; apoptotic process; DNA damage response; chromatin organization

CL cell types (suggested; IDs not provided in retrieved text): - mesothelial cell; tumor-associated macrophage; CD8-positive T cell; regulatory T cell


7. Anatomical Structures Affected

7.1 Primary anatomic sites

7.2 Suggested anatomy ontology mapping

UBERON terms are suggested conceptually but IDs were not present in retrieved sources. - pleura; peritoneum


8. Temporal Development

8.1 Onset pattern

8.2 Progression and staging


9. Inheritance and Population

9.1 Epidemiology (recent statistics)

9.2 Demographics

9.3 Geographic disparities and real-world data (SEER example)

A SEER analysis (2004–2021; 8519 cases) reported a decline in metropolitan incidence (1.4 to 0.8) and later decline in nonmetropolitan incidence (to 0.5 by 2021), with marked survival disparities: by 2020, 1-year cancer-specific survival 50.3% (metropolitan) vs 27.7% (nonmetropolitan) and HR 1.18 for nonmetropolitan hazard of death. (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma)

Table (click to expand)
Metric Value Population/region Year(s) Source Notes
New cases per year ~2,500–3,200 United States Not specified in excerpt Zahiu et al., 2025 (zahiu2025molecularinsightsinto pages 1-2) Review cites annual U.S. case burden for malignant mesothelioma/pleural mesothelioma.
New cases per year ~3,500 United States Not specified in excerpt NCCN Peritoneal Mesothelioma Guidelines, 2023 (ettinger2023mesotheliomaperitonealversion pages 1-2) NCCN overview states mesothelioma is estimated to occur in approximately 3,500 people in the U.S. every year; includes pleural, peritoneal, and other sites.
New cases ~38,400 Worldwide Not specified in excerpt Zahiu et al., 2025 (zahiu2025molecularinsightsinto pages 1-2) Global annual burden cited in review.
Sex distribution ~70% male Mesothelioma overall Not specified in excerpt Zahiu et al., 2025 (zahiu2025molecularinsightsinto pages 1-2) Other sources in context also note male predominance.
Cases by primary site Pleura 80–85% Mesothelioma overall Not specified in excerpt Zahiu et al., 2025 (zahiu2025molecularinsightsinto pages 1-2) Pleura is the dominant site; peritoneum and other serosal sites are less common.
Latency from asbestos exposure to disease 15–40 years Pleural mesothelioma Not specified in excerpt Chiec & Bruno, 2024 (chiec2024immunotherapyfortreatment pages 1-2) Same context describes disease as primarily caused by inhalational asbestos exposure.
Latency from asbestos exposure to symptoms 10–50 years Malignant pleural mesothelioma Not specified in excerpt Jain et al., 2024 (jain2024malignantpleuralmesothelioma pages 1-2) Broad latency range in review; consistent with long natural history.
Average latency ~30 years Pleural mesothelioma Not specified in excerpt Lewandowska & Kowalski, 2024 (lewandowska2024diagnosisandtreatment pages 1-2) Average latency reported in state-of-the-art review.
5-year overall survival ~12% Pleural mesothelioma Not specified in excerpt Chiec & Bruno, 2024 (chiec2024immunotherapyfortreatment pages 1-2); Bertin et al., 2023 (bertin2023thecurrenttreatment pages 1-2) Chiec review abstract cites 5-year OS of 12%; Bertin review states 5-year survival of only 12%.
5-year overall survival ~10% Malignant pleural mesothelioma Not specified in excerpt Jain et al., 2024 (jain2024malignantpleuralmesothelioma pages 1-2) Slightly lower estimate from another review; likely reflects cohort/case-mix differences.
Untreated median survival 4–8 months Malignant pleural mesothelioma Not specified in excerpt Cedres et al., 2023 (cedres2023currentstateofthearttherapy pages 1-2) Review describes untreated patients as having very poor prognosis.
Untreated median survival 7–10 months Pleural mesothelioma / malignant mesothelioma Not specified in excerpt Zahiu et al., 2025 (zahiu2025molecularinsightsinto pages 1-2) Another review provides a somewhat higher untreated median survival estimate.
Overall survival range 9–18 months Malignant pleural mesothelioma Not specified in excerpt Cedres et al., 2023 (cedres2023currentstateofthearttherapy pages 1-2) Review-level estimate across treated populations/settings.
Life expectancy without radical treatment 9 months Pleural mesothelioma Not specified in excerpt Lewandowska & Kowalski, 2024 (lewandowska2024diagnosisandtreatment pages 1-2) Context states life expectancy for patients not treated with radical intent.
Survival by histology after resection ~19 months epithelioid vs ~4 months sarcomatoid Pleural mesothelioma Not specified in excerpt Chiec & Bruno, 2024 (chiec2024immunotherapyfortreatment pages 1-2) Strong prognostic effect of histologic subtype.
Median survival by histology ~17 months epithelioid vs <7 months sarcomatoid Pleural mesothelioma Not specified in excerpt Lewandowska & Kowalski, 2024 (lewandowska2024diagnosisandtreatment pages 1-2) Histology-associated prognosis in review article.
Metropolitan incidence rate 1.4 to 0.8 per 100,000 U.S. metropolitan areas 2004 to 2021 Didier et al., 2025 (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) SEER-based pleural mesothelioma incidence declined over study period.
Nonmetropolitan incidence rate Stable until 2017, then declined to 0.5 per 100,000 U.S. nonmetropolitan areas 2004 to 2021 Didier et al., 2025 (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Indicates later decline outside metropolitan areas.
1-year cancer-specific survival 50.3% U.S. metropolitan areas By 2020 Didier et al., 2025 (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Pleural mesothelioma; better outcomes than nonmetropolitan areas.
1-year cancer-specific survival 27.7% U.S. nonmetropolitan areas By 2020 Didier et al., 2025 (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Marked disparity versus metropolitan populations.
Relative hazard of death HR 1.18 U.S. nonmetropolitan vs metropolitan 2004 to 2021 cohort Didier et al., 2025 (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Multivariable analysis showed higher hazard of death in nonmetropolitan areas.
Regional registry cases 3,513 total cases; 72% male; 79% age >65 years Emilia-Romagna, Italy 1996–2023 Giacomino et al., 2024 (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma) Occupational exposure accounted for 82% overall and increased from 71% to 88% over periods studied.

Table: This table compiles key epidemiology and prognosis statistics for malignant mesothelioma from the retrieved context, including incidence, survival, latency, sex/site distribution, and geographic disparities. It is useful as a concise evidence summary for knowledge base population and comparative review.

9.4 Inheritance


10. Diagnostics

10.1 Imaging and tissue diagnosis (current practice)

  • Jain (2024) describes diagnostic work-up including contrast-enhanced thoracic CT, thoracoscopic pleural biopsy, thoracentesis with cytology, MRI for diaphragmatic invasion assessment, and PET for metastasis evaluation. (jain2024malignantpleuralmesothelioma pages 1-2)
  • Chiec (2024) emphasizes the difficulty of diagnosis from pleural fluid/small biopsies and supports VATS surgical biopsy and invasive staging approaches (e.g., EBUS) when appropriate. (chiec2024immunotherapyfortreatment pages 1-2)

10.2 Biomarkers and molecular pathology

10.3 Germline testing

  • ASCO guideline update explicitly frames germline mutation prevalence (often BAP1) as rationale that universal germline testing should be offered to patients with mesothelioma. (kindler2025treatmentofpleural pages 2-3)

11. Outcome / Prognosis

11.1 Survival (recently reported values)

11.2 Prognostic factors

Recent review-level prognostic factors include older age, stage, poor performance status, and inflammatory markers (e.g., CRP, leukocytosis). (lewandowska2024diagnosisandtreatment pages 1-2)


12. Treatment

12.1 Standard systemic therapy (real-world implementation)

12.2 Immunotherapy (major recent development; 2023–2024 emphasis)

  • Cedres (2023) reports first-line nivolumab + ipilimumab improved OS versus chemotherapy in CheckMate-743 with median OS 18.1 months, leading to FDA and EMA approval and a new standard-of-care position. (cedres2023currentstateofthearttherapy pages 1-2)

12.3 Surgery and multimodality therapy

  • Lewandowska (2024) describes tri-modal therapy (surgery + chemotherapy + radiotherapy) as a standard for radical management, but notes stage at diagnosis commonly precludes surgery. (lewandowska2024diagnosisandtreatment pages 1-2)
  • ASCO (2025 update) includes randomized evidence (MARS2) showing aggressive surgery (EPD + adjuvant chemo) did not improve outcomes versus chemotherapy alone, with higher early mortality (30-day 4%, 90-day 9%). (kindler2025treatmentofpleural pages 3-5)

12.4 Guideline algorithms (visual evidence)

The ASCO 2025 update provides structured algorithms for surgical selection and first-line systemic therapy selection (immunotherapy vs chemotherapy based on histology). (kindler2025treatmentofpleural media fd734332, kindler2025treatmentofpleural media c1e908f8, kindler2025treatmentofpleural media 9d842ba2, kindler2025treatmentofpleural media 39f509f9, kindler2025treatmentofpleural media 0889009a)

12.5 Clinical trials (selected; NCT IDs)

  • NCT02899299 (CheckMate 743): Phase 3 randomized open-label trial; nivolumab + ipilimumab vs pemetrexed + cisplatin/carboplatin in unresectable pleural malignant mesothelioma; primary endpoint OS; enrollment 605; includes PD-L1 stratified analyses. (NCT02899299 chunk 1)
  • NCT03918252: Neoadjuvant nivolumab ± ipilimumab for 3 cycles followed by surgery and adjuvant nivolumab for 12 months (phase I/II; active not recruiting per excerpt). (cecchi2025perioperativetreatmentsin pages 9-10)
  • Additional identified trials from clinicaltrials.gov search results (metadata only in this run; full protocol/outcomes not extracted here): NCT04334759 (durvalumab + chemotherapy; phase 3), NCT06097728 (MEDI5752 + carboplatin/pemetrexed; phase 3), NCT04287829 (pembrolizumab + lenvatinib; phase 2). (OpenTargets Search: malignant mesothelioma,malignant pleural mesothelioma)

12.6 Suggested MAXO terms (treatments)

MAXO IDs were not present in retrieved sources; suggested concepts: - immune checkpoint inhibitor therapy; combination immunotherapy; platinum-based chemotherapy; surgical cytoreduction; radiotherapy; genetic counseling / germline testing

Table (click to expand)
Setting (1L unresectable, perioperative, peritoneal etc.) Modality/regimen Key evidence/trial or guideline Reported outcome metrics in context (median OS etc.) Regulatory/real-world implementation notes Suggested MAXO term
1L unresectable pleural mesothelioma Nivolumab + ipilimumab CheckMate-743; summarized in 2023/2024 reviews and ASCO guideline update (cedres2023currentstateofthearttherapy pages 1-2, lewandowska2024diagnosisandtreatment pages 1-2, kindler2025treatmentofpleural media fd734332) Median OS 18.1 months; superior to chemotherapy in CheckMate-743 (cedres2023currentstateofthearttherapy pages 1-2) Described as FDA/EMA approved and a new standard of care; implemented in routine practice/guidelines, including availability in Poland irrespective of histology (cedres2023currentstateofthearttherapy pages 1-2, lewandowska2024diagnosisandtreatment pages 1-2, kindler2025treatmentofpleural media fd734332)
1L unresectable pleural mesothelioma Platinum + pemetrexed Historical standard systemic therapy in reviews/guidelines (cedres2023currentstateofthearttherapy pages 1-2, chiec2024immunotherapyfortreatment pages 1-2, bertin2023thecurrenttreatment pages 1-2, kindler2025treatmentofpleural media fd734332) Extends survival only by months; comparator arm to immunotherapy in modern algorithms (bertin2023thecurrenttreatment pages 1-2, kindler2025treatmentofpleural media fd734332) Remains standard chemotherapy backbone in guidelines and clinical practice (cedres2023currentstateofthearttherapy pages 1-2, kindler2025treatmentofpleural media fd734332)
1L unresectable pleural mesothelioma Platinum + pemetrexed + bevacizumab Review summary of established regimen (cedres2023currentstateofthearttherapy pages 1-2) Addition of bevacizumab adds about 2 months to median survival (cedres2023currentstateofthearttherapy pages 1-2) Used as an intensified chemotherapy-based option where appropriate; discussed as pre-immunotherapy standard intensification (cedres2023currentstateofthearttherapy pages 1-2)
1L pleural mesothelioma, histology-directed decision making Systemic therapy algorithm: immunotherapy versus chemotherapy based on histology ASCO 2025 Figure 5 / Tables 4-5 (kindler2025treatmentofpleural media fd734332) Figure summarizes selection of ipilimumab+nivolumab versus pemetrexed+platinum based on epithelioid vs nonepithelioid histology; no additional numeric outcome quoted in image summary (kindler2025treatmentofpleural media fd734332) ASCO algorithm indicates first-line implementation in routine practice; nivolumab+ipilimumab especially emphasized for nonepithelioid disease (kindler2025treatmentofpleural media fd734332)
Radical/localized pleural mesothelioma Tri-modal therapy (surgery + chemotherapy + radiotherapy) 2024 state-of-the-art review (lewandowska2024diagnosisandtreatment pages 1-2) Presented as standard for radical management; no pooled OS number in retrieved excerpt (lewandowska2024diagnosisandtreatment pages 1-2) Stage at diagnosis usually precludes surgery in many patients (lewandowska2024diagnosisandtreatment pages 1-2)
Resectable stage I-IIIa pleural mesothelioma Surgery: EPP or PD/EPD 2024 review; ASCO surgical algorithm (lewandowska2024diagnosisandtreatment pages 1-2, kindler2025treatmentofpleural media fd734332) No single survival number for surgery alone in these excerpts; surgery is for selected patients with early-stage disease (lewandowska2024diagnosisandtreatment pages 1-2, kindler2025treatmentofpleural media fd734332) EPD/PD currently favored as lung-sparing approaches in guideline algorithms (kindler2025treatmentofpleural media fd734332)
Pleural mesothelioma surgery comparison Extended pleurectomy/decortication (EPD) + adjuvant chemotherapy versus chemotherapy alone MARS2, summarized in ASCO update (kindler2025treatmentofpleural pages 3-5) Median OS 19.3 months with surgery arm versus 24.8 months with chemotherapy alone; HR for death 1.28; 30-day mortality 4%, 90-day mortality 9% (kindler2025treatmentofpleural pages 3-5) Supports caution with aggressive surgery; guideline context favors careful patient selection and lung-sparing approaches (kindler2025treatmentofpleural pages 3-5, kindler2025treatmentofpleural media fd734332)
Advanced/recurrent pleural mesothelioma Immune checkpoint inhibitors (class effect) 2024 immunotherapy review / emerging strategies (chiec2024immunotherapyfortreatment pages 1-2) Review notes recent dual-checkpoint and chemo-immunotherapy trials changed outcomes, but no specific salvage OS quoted in retrieved excerpt (chiec2024immunotherapyfortreatment pages 1-2) Incorporated into modern pleural mesothelioma treatment landscape; biomarker-guided selection remains unresolved (chiec2024immunotherapyfortreatment pages 1-2)
Previously treated pleural mesothelioma No approved systemic option after 1L (as of 2023 review context) 2023 review (cedres2023currentstateofthearttherapy pages 1-2) Explicitly notes no approved systemic options after first-line treatment in that review excerpt (cedres2023currentstateofthearttherapy pages 1-2) Reflects therapeutic gap and rationale for ongoing trials (cedres2023currentstateofthearttherapy pages 1-2)
Peritoneal mesothelioma NCCN-guided workup/diagnosis/treatment pathways NCCN Peritoneal Mesothelioma v2.2023 (ettinger2023mesotheliomaperitonealversion pages 1-2) No regimen-specific OS in retrieved excerpt (ettinger2023mesotheliomaperitonealversion pages 1-2) NCCN notes rarity and encourages clinical trial participation; “malignant” terminology dropped because all mesotheliomas are now defined as malignant (ettinger2023mesotheliomaperitonealversion pages 1-2)

Table: This table summarizes current mesothelioma treatment approaches and outcome data available in the retrieved context, emphasizing first-line systemic therapy, surgery, and guideline implementation. It is useful for quickly comparing standard regimens, landmark evidence, and practice implications.


13. Prevention


14. Other Species / Natural Disease

No other-species naturally occurring disease data were present in the retrieved sources.


15. Model Organisms

No model organism systems were detailed in the retrieved excerpts.


Recent developments (2023–2024) and expert analysis (authoritative synthesis)

  1. First-line immunotherapy became practice-defining. A 2023 state-of-the-art review summarizes CheckMate-743, highlighting nivolumab + ipilimumab median OS 18.1 months and regulatory approval, marking a new standard; subsequent 2024 reviews emphasize broad clinical implementation and ongoing biomarker uncertainty. (cedres2023currentstateofthearttherapy pages 1-2, chiec2024immunotherapyfortreatment pages 1-2, lewandowska2024diagnosisandtreatment pages 1-2)
  2. Diagnostic adjuncts are converging on practical IHC strategies. 2024–2025 reviews highlight BAP1 and MTAP IHC, with MTAP as an “almost ideal surrogate” for CDKN2A deletion testing via p16/CDKN2A FISH, potentially improving diagnostic efficiency where tissue is limited. (zahiu2025molecularinsightsinto pages 1-2, chiec2024immunotherapyfortreatment pages 1-2)
  3. Surgery is being re-evaluated with randomized evidence. ASCO’s guideline update incorporates MARS2 results showing no OS advantage for EPD + chemo vs chemo alone and QOL/cost favoring chemo, supporting more conservative, carefully selected multimodality surgery in specialized centers. (kindler2025treatmentofpleural pages 3-5, kindler2025treatmentofpleural media fd734332)
  4. Hereditary genetics is increasingly guideline-relevant. ASCO emphasizes germline mutations (especially BAP1) in mesothelioma, supporting offering germline testing broadly to guide patient/family risk management. (kindler2025treatmentofpleural pages 2-3)

Required direct quotes from abstracts (supporting key statements)


Notes on evidence limitations and gaps

References

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