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FDA Approves Nivolumab and Ipilimumab for Unresectable Malignant Pleural Mesothelioma

Evidence for efficacy is based on the results from the CheckMate-743 study
05 Oct 2020
Cancer Immunology and Immunotherapy;  Lung and other thoracic tumours

On 2 October 2020, the US Food and Drug Administration (FDA) approved the combination of nivolumab (OPDIVO, Bristol-Myers Squibb Co.) plus ipilimumab (YERVOY, Bristol-Myers Squibb Co.) as first-line treatment for adult patients with unresectable malignant pleural mesothelioma.

Efficacy was investigated in CheckMate-743 (NCT02899299), a randomised, open-label study in patients with unresectable malignant pleural mesothelioma and no prior anticancer therapy. Patients were randomised to receive either nivolumab and ipilimumab for up to 2 years (n=303) or 6 cycles of combination chemotherapy with cisplatin or carboplatin plus pemetrexed (n=302).

The study demonstrated a statistically significant improvement in overall survival (OS) for patients treated with nivolumab plus ipilimumab compared with those who received chemotherapy. Median OS was 18.1 months (95% confidence interval [CI] 16.8, 21.5) versus 14.1 months (95% CI 12.5, 16.2) (HR 0.74; 95% CI 0.61, 0.89; p = 0.002).

Median progression-free survival per blinded independent central review (BICR) was 6.8 months (95% CI 5.6, 7.4) in the nivolumab plus ipilimumab arm and 7.2 months (95% CI 6.9, 8.1) in the chemotherapy arm (HR 1.0; 95% CI 0.82, 1.21).

Confirmed overall response rate per BICR was 40% (95% CI 34, 45) and 43% (95% CI 37, 49) in the nivolumab plus ipilimumab and chemotherapy arms, respectively.

Median response duration was 11.0 months in the nivolumab plus ipilimumab arm and 6.7 months in the chemotherapy arm.

The most common adverse reactions (incidence ≥ 20%) in patients receiving the combination of nivolumab plus ipilimumab in CheckMate-743 were fatigue, musculoskeletal pain, rash, diarrhea, dyspnoea, nausea, decreased appetite, cough, and pruritus.

The recommended doses for unresectable malignant pleural mesothelioma are nivolumab 360 mg every 3 weeks and ipilimumab 1 mg/kg every 6 weeks until disease progression, unacceptable toxicity, or up to 2 years in patients without disease progression.

Full prescribing information for OPDIVO is available here and for YERVOY here.

This review was conducted under Project Orbis, an initiative of the FDA Oncology Center of Excellence (OCE). Project Orbis provides a framework for concurrent submission and review of oncology drugs among international partners. For this review, FDA collaborated with the Australian Therapeutic Goods Administration, the Brazilian Health Regulatory Agency, Health Canada, and Switzerland’s Swissmedic. The application reviews are ongoing at the other regulatory agencies.

FDA approval occurred approximately 5 months ahead of the goal date.
This review used the Real-Time Oncology Review pilot programme and the Assessment Aid, a voluntary submission from the applicant to facilitate the FDA’s assessment.

The applications were granted priority review and orphan product designation.

Healthcare professionals should report all serious adverse events suspected to be associated with the use of any medicine and device to FDA’s MedWatch Reporting System.

For assistance with single-patient INDs for investigational oncology products, healthcare professionals may contact OCE’s Project Facilitate.

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