On July 21, 2023 BeiGene (Nasdaq: BGNE; HKEX: 06160; SSE: 688235), a global biotechnology company, reported that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has issued a positive opinion recommending approval for tislelizumab as monotherapy for the treatment of adult patients with unresectable, locally advanced or metastatic esophageal squamous cell carcinoma (ESCC) after prior platinum-based chemotherapy (Press release, BeiGene, JUL 21, 2023, View Source [SID1234633354]).

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"Tislelizumab is the first medicine to come from BeiGene’s immuno-oncology research program and our team partnered with patients, caregivers, and clinical researchers across the world to generate the evidence supporting this CHMP recommendation," said Lai Wang, Ph.D., Global Head of R&D at BeiGene. "We continue to make progress in our mission to bring the highest quality therapies to more people around the world and look forward to working with Novartis and health authorities on regulatory filings for tislelizumab."

The Marketing Authorization Application (MAA) for ESCC is based on results from BeiGene’s RATIONALE 302, a global, randomized, open-label, Phase 3 study (NCT03430843) to investigate the efficacy and safety of tislelizumab when compared with investigator’s choice chemotherapy as a second-line treatment for patients with unresectable, locally advanced or metastatic ESCC. The study enrolled 513 patients from 132 research sites in 11 countries in Asia, Europe, and North America. The study met its primary endpoint with a statistically significant and clinically meaningful survival benefit for tislelizumab compared with chemotherapy (HR 0.70 [95%CI 0.57 – 0.85]; one-sided P=.0001; median overall survival 8.6 vs 6.3 months). The safety profile for tislelizumab was consistent with previous trials.i The MAA included safety data for 1,972 patients who received tislelizumab monotherapy in seven clinical trials.

Tislelizumab is not currently authorized for use in Europe.

About ESCCii
Globally, esophageal cancer (EC) is the sixth most common cause of cancer-related deaths and ESCC is the most common histologic subtype, accounting for more than 85% of ECs. An estimated 957,000 new EC cases are projected in 2040, an increase of nearly 60% from 2020 that underscores the need for additional effective treatments.

About Tislelizumab
Tislelizumab is a humanized IgG4 anti-PD-1 monoclonal antibody specifically designed to minimize binding to Fc-gamma (Fcγ) receptors on macrophages, helping to aid the body’s immune cells to detect and fight tumors. In pre-clinical studies, binding to Fcγ receptors on macrophages has been shown to compromise the anti-tumor activity of PD-1 antibodies through activation of antibody-dependent macrophage-mediated killing of T effector cells.

In 2021, BeiGene and Novartis announced a collaboration agreement to jointly develop tislelizumab in the United States, Canada, Mexico, member countries of the European Union, United Kingdom, Norway, Switzerland, Iceland, Liechtenstein, Russia, and Japan. Under the agreement Novartis is responsible for regulatory submission and has the right to commercialize in these licensed countries following regulatory approval.

The EMA is reviewing a MAA for tislelizumab as a treatment for locally advanced or metastatic non-small cell lung cancer (NSCLC) after prior chemotherapy, and in combination with chemotherapy for previously untreated locally advanced or metastatic NSCLC. Regulatory submissions for tislelizumab are also under review by authorities in the U.S., U.K., Australia, China, New Zealand, Brazil, Korea, Switzerland and Indonesia.

More than 12,000 patients from across the world have participated in the tislelizumab development program that encompasses 21 registration-enabling clinical trials in more than 30 countries and regions. To date, BeiGene has announced positive readouts from 10 Phase 3 pivotal studies across multiple tumor types and disease settings such as NSCLC, Small Cell Lung Cancer, Gastric Cancer, ESCC, Hepatocellular Cancer, and Nasopharyngeal Cancer. More information on the clinical trial program for tislelizumab can be found at: View Source