Pembrolizumab After Radiation Therapy in Treating Patients With Pleural Malignant Mesothelioma
Active, enrolledPhase 1Results postedLast updated 6 March 2026
What this trial tests
Phase 1 trial testing Laboratory Biomarker Analysis in Pleural Malignant Mesothelioma in 24 participants. Participants enrolled and being followed up; not accepting new ones.
18 and older, any sex, with Pleural Malignant Mesothelioma. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Safety/ToxicityPrimary· Baseline to 4-months after the start of radiation therapy
To determine the safety and tolerability of pembrolizumab administered after radiation therapy in patients with MPM. The primary endpoint was "unaccepable" high grade adverse events (AEs) from baseline to 4-month after the start of radiation therapy.
Group
Value
95% CI
Cohort 1
0
Cohort 2
0
Overall Survival (OS)Secondary· Every 6 weeks (42 +/- 7 days) until to 48 weeks, then every 12 weeks (+/- 7 days) to 5 years
To assess overall survival (OS) in patients receiving Pembrolizumab after radiation therapy for MPM.
Group
Value
95% CI
Cohort 1
12.2
7.7 – 23.6
Cohort 2
16.3
6.3 – 22.2
Progression-Free Survival (PFS)Secondary· Every 6 weeks (42 +/- 7 days) until to 48 weeks, then every 12 weeks (+/- 7 days) to 5 years
To assess progression-free survial (PFS) in patients receiving Pembrolizumab after radiation therapy for MPM.
Group
Value
95% CI
Cohort 1
7.7
4.2 – 19.8
Cohort 2
4
3.3 – 11.4
Adverse events — posted to ClinicalTrials.gov
Time frame: Baseline to 4-months after radiation therapy up to 5 years.
Reporting threshold: 0%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
Cohort 1
Serious: 6/12 (50%)
Deaths: 11/12
Cohort 2
Serious: 3/12 (25%)
Deaths: 12/12
Serious adverse events (20 terms)
Reaction
System
Cohort 1
Cohort 2
Lung infection
Infections and infestations
—
—
Pneumonitis
Respiratory, thoracic and mediastinal disorders
—
—
Respiratory failure
Respiratory, thoracic and mediastinal disorders
—
—
Death NOS
General disorders
—
—
Dysphagia
General disorders
—
—
Pain
General disorders
—
—
Constipation
Gastrointestinal disorders
—
—
Esophagitis
General disorders
—
—
Gastritis
General disorders
—
—
Infections and infestations - Other
Infections and infestations
—
—
Creatinine increased
Investigations
—
—
Hyperkalemia
Metabolism and nutrition disorders
—
—
Anorexia
Metabolism and nutrition disorders
—
—
Acute Kidney injury
Renal and urinary disorders
—
—
Urinary retention
Renal and urinary disorders
—
—
Dyspnea
Respiratory, thoracic and mediastinal disorders
—
—
Pneumothorax
Respiratory, thoracic and mediastinal disorders
—
—
Pleural effusion
Respiratory, thoracic and mediastinal disorders
—
—
Tracheal mucositis
Respiratory, thoracic and mediastinal disorders
—
—
Thromboembolic event
Vascular disorders
—
—
Other adverse events (92 terms — click to expand)
Reaction
System
Cohort 1
Cohort 2
Fatigue
General disorders
—
—
Cough
Respiratory, thoracic and mediastinal disorders
—
—
Dyspnea
Respiratory, thoracic and mediastinal disorders
—
—
Anemia
Blood and lymphatic system disorders
—
—
Dysphagia
Gastrointestinal disorders
—
—
Pain
General disorders
—
—
Esophagitis
Gastrointestinal disorders
—
—
Anorexia
Metabolism and nutrition disorders
—
—
Blood and lymphatic system disorders-Other, specify
This phase I trial studies the side effects and best way to give pembrolizumab after radiation therapy in treating patients with pleural malignant mesothelioma. Radiation therapy uses high energy radiation to kill tumor cells and shrink tumors. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab after radiation therapy may kill more tumor cells.
Publications & conference data
8 peer-reviewed publications reference this trial (live from Europe PMC):
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Other recruiting trials for Pleural Malignant Mesothelioma
Currently open trials in the same condition.
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· active not recruiting
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· active not recruiting
NCT01064648 — Pemetrexed Disodium and Cisplatin With or Without Cediranib Maleate in Treating Patients With Malignant Pleural Mesothel
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Trials by the same sponsor.
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Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by M.D. Anderson Cancer Center
Last refreshed: 6 March 2026
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT02959463.