On September 10, 2024 Verastem Oncology (Nasdaq: VSTM), a biopharmaceutical company committed to advancing new medicines for patients with cancer, reported the acceptance of a late-breaking abstract of the mature data from the ongoing Phase 2 RAMP 201 (ENGOT-ov60/GOG-3052) clinical trial to be presented as an oral presentation at a plenary session at the International Gynecologic Cancer Society (IGCS) Annual Meeting taking place October 16-18, 2024 in Dublin, Ireland (Press release, Verastem, SEP 10, 2024, View Source [SID1234646478]). The presentation will include updated safety and efficacy data from the RAMP 201 trial evaluating the combination of avutometinib, a RAF/MEK clamp, and defactinib, a selective FAK inhibitor, in patients with low-grade serous ovarian cancer (LGSOC), including overall response rate, progression free survival, and duration of response.
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"The robust interim data from the ongoing RAMP 201 clinical trial in LGSOC, announced earlier this year, enabled us to initiate the rolling NDA submission to the FDA," said Dan Paterson, president and chief executive officer of Verastem Oncology. "We look forward to the oral presentation at IGCS of the mature RAMP 201 data and engaging with experts in ovarian cancer as part of the international gynecologic community. We also remain on track to finalize our clinical module and complete our NDA submission in the fourth quarter of this year."
About the Avutometinib and Defactinib Combination
Avutometinib is a RAF/MEK clamp that induces inactive complexes of MEK with ARAF, BRAF and CRAF potentially creating a more complete and durable anti-tumor response through maximal RAS/MAPK pathway inhibition. In contrast to currently available MEK-only inhibitors, avutometinib blocks both MEK kinase activity and the ability of RAF to phosphorylate MEK. This unique mechanism allows avutometinib to block MEK signaling without the compensatory activation of MEK that appears to limit the efficacy of other MEK-only inhibitors.
Verastem Oncology is currently conducting clinical trials with avutometinib in RAS/MAPK driven tumors as part of its Raf And Mek Program or RAMP. RAMP 301 (NCT06072781) is an international Phase 3 confirmatory trial evaluating the combination of avutometinib and defactinib, a selective FAK inhibitor, versus standard chemotherapy or hormonal therapy for the treatment of recurrent low-grade serous ovarian cancer (LGSOC). RAMP 201 (NCT04625270) is a Phase 2 registration-directed trial of avutometinib in combination with defactinib in patients with recurrent LGSOC and enrollment has been completed for the entire RAMP 201 trial, including regimen selection and expansion of the go forward regimen.
Verastem has initiated a rolling New Drug Application (NDA) submission to the U.S. Food and Drug Administration (FDA) for the investigational combination of avutometinib and defactinib in adults with recurrent LGSOC and expects to complete its NDA submission in the second half of 2024 with a potential FDA decision in the first half of 2025. The FDA granted Breakthrough Therapy Designation of the investigational combination of avutometinib and defactinib for the treatment of all patients with recurrent LGSOC after one or more prior lines of therapy, including platinum-based chemotherapy. Avutometinib alone or in combination with defactinib was also granted Orphan Drug Designation by the FDA for the treatment of LGSOC.
Verastem Oncology has established clinical collaborations with Amgen and Mirati to evaluate LUMAKRAS (sotorasib) in combination with avutometinib and defactinib and KRAZATI (adagrasib) in combination with avutometinib in KRAS G12C mutant NSCLC as part of the RAMP 203 (NCT05074810) and RAMP 204 (NCT05375994) trials, respectively. The RAMP 205 (NCT05669482), a Phase 1b/2 clinical trial evaluating avutometinib and defactinib with gemcitabine/nab-paclitaxel in patients with front-line metastatic pancreatic cancer, is supported by the PanCAN Therapeutic Accelerator Award. FDA granted Orphan Drug Designation to avutometinib and defactinib combination for the treatment of pancreatic cancer.