Αρχική World News FDA Grants Regular Approval to Pembrolizumab and Lenvatinib for Advanced Endometrial Carcinoma

FDA Grants Regular Approval to Pembrolizumab and Lenvatinib for Advanced Endometrial Carcinoma

On 21 July 2021, the US Food and Drug Administration (FDA) approved pembrolizumab (Keytruda, Merck) in combination with lenvatinib (Lenvima, Eisai) for patients with advanced endometrial carcinoma that is not microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR), who have disease progression following prior systemic therapy in any setting and are not candidates for curative surgery or radiation.

FDA granted accelerated approval on 17 September 2019 to pembrolizumab with lenvatinib for advanced endometrial carcinoma. Study 309/KEYNOTE-775 (NCT03517449) was a multicentre, open-label, randomised, active-controlled study required to confirm the clinical benefit of this accelerated approval.

Study 309/KEYNOTE-775 enrolled 827 patients with advanced endometrial carcinoma previously treated with at least one prior platinum-based chemotherapy regimen in any setting, including neoadjuvant and adjuvant treatments. Patients were randomised (1:1) to either pembrolizumab 200 mg intravenously every 3 weeks with lenvatinib 20 mg orally once daily or investigator’s choice of doxorubicin or paclitaxel.

The major efficacy outcome measures were progression-free survival (PFS), as assessed by blinded independent central review (BICR), and overall survival (OS). Additional efficacy outcome measures included objective response rate (ORR) and duration of response (DoR), also BICR-assessed.

For patients with advanced endometrial cancer that is not MSI-H or dMMR, the median PFS was 6.6 months (95% confidence interval [CI] 5.6, 7.4) for patients in the pembrolizumab and lenvatinib group and 3.8 months (95% CI 3.6, 5.0) for those receiving investigator’s choice chemotherapy (HR 0.60; 95% CI 0.50, 0.72; p < 0.0001). Median OS was 17.4 months (95% CI 14.2, 19.9) and 12.0 months (95% CI 10.8, 13.3), respectively (HR 0.68; 95% CI 0.56, 0.84; p = 0.0001).

The ORR was 30% (95% CI 26, 36) and 15% (95% CI 12, 19), respectively (p < 0.0001). Median DoR was 9.2 months (1.6+, 23.7+) and 5.7 months (0.0+, 24.2+).

The most common adverse reactions reported in ≥ 20% of patients in studies of pembrolizumab in combination with lenvatinib were hypothyroidism, hypertension, fatigue, diarrhoea, musculoskeletal disorders, nausea, decreased appetite, vomiting, stomatitis, weight loss, abdominal pain, urinary tract infection, proteinuria, constipation, headache, haemorrhagic events, palmar-plantar erythrodysesthesia, dysphonia and rash.

The recommended pembrolizumab dose for endometrial carcinoma is 200 mg every 3 weeks or 400 mg every 6 weeks with lenvatinib 20 mg orally once daily.

Full prescribing information for Keytruda is available here and for Lenvima here.

This review used the Assessment Aid, a voluntary submission from the applicant to facilitate the FDA’s assessment. The FDA approved this application 6 weeks prior to the FDA goal date.

This application was granted priority review. The combination of pembrolizumab and lenvatinib received breakthrough therapy designation for this indication.

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 FDA’s Oncology Centre of Excellence Project Facilitate.

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