BeiGene receives second FDA approval for TEVIMBRA
- BeiGene announced the FDA has approved TEVIMBRA (tislelizumab-jsgr), in combination with platinum and fluoropyrimidine-based chemotherapy, for the first-line treatment of unresectable or metastatic HER2-negative gastric or gastroesophageal junction adenocarcinoma (G/GEJ) in adults whose tumors express PD-L1 (=1).
- The additional indication for first-line G/GEJ cancers is based on results from BeiGene's RATIONALE-305 (NCT03777657), a randomized, double-blind, placebo-controlled, global Phase 3 trial to evaluate the efficacy and safety of TEVIMBRA in combination with chemotherapy as a first-line treatment for adult patients with advanced unresectable or metastatic G/GEJ cancer. The study met its primary endpoint and demonstrated a statistically significant and clinically meaningful overall survival (OS) benefit with a median OS of 15.0 months for patients treated with TEVIMBRA in combination with the investigator's choice of chemotherapy compared to 12.9 months for patients treated with placebo plus chemotherapy (n=997; HR: 0.80 [95% CI: 0.70, 0.92]; P=0.0011), resulting in a 20% reduction in the risk of death.
- The pooled safety data in the application included 1,972 patients who received TEVIMBRA monotherapy in two randomized open-label, active-controlled studies (RATIONALE-302, BGB-A317-303) and five open-label, single-arm studies (BGB-A317-208, BGB-A317-204, BGB-A317-203, BGB-A317-102, BGB A317_Study_001), which enrolled 307 patients with esophageal squamous cell carcinoma and 1,665 patients with advanced or recurrent tumors. The most common Grade 3 or 4 adverse reactions for TEVIMBRA given in combination with chemotherapy were neutropenia, thrombocytopenia, anemia, fatigue, hypokalemia, hyponatremia, pneumonia, decreased appetite, rash, lymphopenia, alanine aminotransferase increased, aspartate aminotransferase increased, diarrhea, pneumonitis, and hepatitis.
- TEVIMBRA is also approved in the U.S. as monotherapy for the treatment of adult patients with unresectable or metastatic esophageal squamous cell carcinoma (ESCC) after prior systemic chemotherapy that did not include a PD-(L)1 inhibitor. An additional Biologics License Application (BLA) is under review at the FDA for the first-line treatment of adult patients with locally advanced unresectable or metastatic ESCC.