European Commission Approves Libtayo as First Immunotherapy for Patients with Advanced BCC

June 25, 2021

The PD-1 inhibitor Libtayo® (cemiplimab, Regeneron/Sanofi) is approved by the European Commission to treat adults with locally advanced or metastatic basal cell carcinoma (BCC) who have progressed on or are intolerant to a hedgehog pathway inhibitor (HHI). Libtayo is now approved for three advanced cancers in the European Union, following the EC's concurrent approval of Libtayo for first-line treatment of adult patients with advanced non-small cell lung cancer (NSCLC) whose tumor cells have ≥50% PD-L1 expression and no EGFR, ALK or ROS1 aberrations. In 2019, Libtayo was approved by the EC as the first treatment for adults with metastatic or locally advanced cutaneous squamous cell carcinoma (CSCC) who are not candidates for curative surgery or curative radiation.

EC approval in BCC is based on data from the largest prospective clinical trial (n=119) in patients with advanced BCC previously treated with an HHI to date. Libtayo-treated patients with locally advanced BCC experienced an objective response rate (ORR) of 32% by independent central review. Libtayo-treated patients with metastatic BCC demonstrated an ORR of 29%. In addition, approximately 90% of patients across both groups had a duration of response (DOR) of 6 months or longer per Kaplan Meier estimates, and the median DOR has not been reached for either group. Median duration of follow-up was 16 months for locally advanced BCC and 9 months for metastatic BCC.

"Libtayo is the first immunotherapy to show a clinical benefit in patients with advanced BCC after HHI therapy in a pivotal trial, and with this first-in-class approval has the potential to transform treatment for patients in Europe whose cancer has progressed despite HHI treatment," says Israel Lowy, MD, PhD, Senior Vice President, Translational and Clinical Sciences, Oncology at Regeneron. "We look forward to continuing to investigate this medicine in additional settings, with the goal of helping more patients with difficult-to-treat cancers around the world."

Across all of its approved indications, Libtayo had a generally consistent safety profile. Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue during or after treatment with Libtayo.

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