Regulatory approval

Published by the Food and Drug Administration.

The U.S. Food and Drug Administration (FDA) granted accelerated approval to avutometinib in combination with defactinib (Avmapki Fakzynja co-pack) for the treatment of adult patients with KRAS-mutated recurrent low-grade serous ovarian cancer (LGSOC) who have received prior systemic therapy. The package insert notes that this indication is approved under accelerated approval based on tumor response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial. This approval is based on RAMP-201 (NCT04625270), an open-label, multicenter study that included 57 adult patients with measurable KRAS-mutated recurrent LGSOC. The KRAS mutations identified by local testing were G12V (53%), G12D (35%), Q61H (3.5%), G12C (1.8%), G12R (1.8%), A146V (1.8%), and mutations not otherwise specified at G12x (1.8%) and on codon 12/13 (1.8%). 44% of patients responded (3.5% with complete response, 40% with partial response), and the package insert notes that the tumor KRAS mutations observed in the 25 responders were A146V, G12D, G12R, G12V, and Q61H.

This is written in the approval document as:

AVMAPKI FAKZYNJA CO-PACK, a combination of avutometinib and defactinib, each kinase inhibitors, is indicated for the treatment of adult patients with KRAS-mutated recurrent low-grade serous ovarian cancer (LGSOC) who have received prior systemic therapy.

Citation

Verastem Inc. Avmapki Fakzynja co-pack (avutometinib potassium; defactinib hydrochloride) [package insert]. U.S. Food and Drug Administration website. https://www.accessdata.fda.gov/drugsatfda_docs/label/2025/219616s000lbl.pdf. Revised May 2025. Accessed June 12, 2025.

Therapeutic response

Precision oncology relationships for therapeutic response derived from this regulatory approval.

Type Biomarker(s) Cancer type Therapy(ies)
Sensitivity (+) KRAS p.G12C Low-Grade Serous Ovarian Cancer Avutometinib, Defactinib
Sensitivity (+) KRAS p.G12V Low-Grade Serous Ovarian Cancer Avutometinib, Defactinib