FDA Grants Traditional Approval to Gavreto

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FDA has granted traditional approval for Genentech’s Gavreto (pralsetinib) for treating adult patients with metastatic RET (rearranged during transfection) fusion-positive non-small cell lung cancer (NSCLC) as confirmed by an FDA-approved test. Pralsetinib had previously been granted accelerated approval 9/2020 for the NSCLC indication based on its initial overall response rate (ORR) and duration of response (DOR) in 114 patients enrolled in the ARROW trial. “The conversion to regular approval was based on data from an additional 123 patients and 25 months of additional follow-up to assess durability of response,” an agency release says.

The primary efficacy measures were ORR and DOR as determined by a Blinded Independent Review Committee, FDA says. “Among 107 treatment-naïve patients, ORR was 78% (95% CI: 68, 85) with a median DOR of 13.4 months (95% CI: 9.4, 23.1),” it says. “Among 130 patients previously treated with platinum-based chemotherapy, ORR was 63% (95% CI: 54, 71) with a median DOR of 38.8 months.”

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