Expert review of anticancer therapy · 2026
An evaluation of avutometinib in combination with defactinib for KRAS-mutated recurrent low-grade serous ovarian cancer.
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Podder Vivek, Slomovitz Brian M, Coleman Robert L
Аннотация
INTRODUCTION: Low-grade serous ovarian cancer (LGSOC) is a rare, biologically distinct subtype of epithelial ovarian cancer characterized by relative genomic stability, frequent activation of the mitogen-activated protein kinase (MAPK) pathway, and limited sensitivity to cytotoxic chemotherapy. Activating alterations in KRAS, NRAS, and BRAF mutations occur in 70% of cases, with KRAS being the predominant driver in recurrent disease, for which effective and durable treatment options remain limited.
AREAS COVERED: This article reviews the mechanistic rationale for combined RAF/MEK and focal adhesion kinase (FAK) inhibition in LGSOC, focusing on avutometinib (a first-in-class RAF/MEK clamp) and defactinib (a selective FAK inhibitor). A structured review of preclinical and clinical evidence was conducted, including key findings from phase I FRAME and phase II RAMP-201 trials. Efficacy outcomes, safety and tolerability profiles, and the current regulatory landscape, including accelerated approval in the United States and ongoing phase III evaluation, are discussed.
EXPERT OPINION: Avutometinib plus defactinib represents a promising targeted therapeutic strategy for recurrent LGSOC, particularly in patients with KRAS-mutant tumors. If confirmed in phase III trials, this combination may establish a molecularly informed disease-specific treatment paradigm with the potential for more durable disease control than existing therapies.
AREAS COVERED: This article reviews the mechanistic rationale for combined RAF/MEK and focal adhesion kinase (FAK) inhibition in LGSOC, focusing on avutometinib (a first-in-class RAF/MEK clamp) and defactinib (a selective FAK inhibitor). A structured review of preclinical and clinical evidence was conducted, including key findings from phase I FRAME and phase II RAMP-201 trials. Efficacy outcomes, safety and tolerability profiles, and the current regulatory landscape, including accelerated approval in the United States and ongoing phase III evaluation, are discussed.
EXPERT OPINION: Avutometinib plus defactinib represents a promising targeted therapeutic strategy for recurrent LGSOC, particularly in patients with KRAS-mutant tumors. If confirmed in phase III trials, this combination may establish a molecularly informed disease-specific treatment paradigm with the potential for more durable disease control than existing therapies.