Verastem Oncology announced a mini oral presentation highlighting updated data from the ongoing investigator-sponsored Phase 1/2 FRAME study. The FRAME study, led by The Institute of Cancer Research, London, and The Royal Marsden NHS Foundation Trust, is investigating VS-6766, Verastem’s RAF/MEK inhibitor, in combination with defactinib, its FAK inhibitor, in patients with low grade serous ovarian cancer (LGSOC). The findings will be presented at the European Society of Medical Oncology (ESMO) Congress 2021. Updated Phase 1/2 FRAME Study Results in Patients with LGSOC: Among the evaluable patients with LGSOC (n=24), the overall response rate (ORR) was 46% (11 of 24). Among the patients with KRAS mutant LGSOC (n=11), the ORR was 64% (7 of 11). Among the patients with KRAS wild type LGSOC (n=9), the ORR was 44% (4 of 9). Of the evaluable patients, 10 (42%) received previous MEK inhibitor therapy. The mPFS across all patients was 23.0 months (95% CI: 10.6- not reached). As of the April 2021 data cutoff date, 13 of 24 patients (54%) remained on study. For context, for other therapies studied in recurrent LGSOC, response rates have been between 6% and 26% and mPFS was between 7.2 and 13.0 months. In the FRAME study, the most common Grade 3/4 treatment-related adverse events (AEs) were creatine kinase elevation (12%), rash (8%), diarrhea (4%), mouth ulcer/mucositis/glossitis (4%) and hyperbilirubinemia (4%), with only one discontinuation due to AEs as of the data cutoff. These updated data suggest that the novel, intermittent dosing schedule used in the FRAME study continues to show encouraging clinical activity in patients with recurrent LGSOC, including in patients previously treated with a MEK inhibitor. Expansion cohorts are also ongoing in pancreatic cancer, KRAS/BRAF mutant endometrioid cancer and KRAS-G12V NSCLC.