Continued Access to Avutometinib in Combination With Defactinib in Patients With Recurrent Low-Grade Serous Ovarian Cancer (LGSOC)

NCT07747506 | Not Yet Recruiting Phase 2 FDA Drug

• 1 other identifier: VS-6766-206
• Study Type: interventional
• Target: 2
• Locations: 1 country
• Sites: 2

Brief Summary

This Open-Label Extension (OLE) study provides participants with recurrent low-grade serous ovarian cancer (LGSOC) who have completed the VS-6766-201(RAMP-201) study continued, uninterrupted access to avutometinib in combination with defactinib. The study is designed to support patients in France with access to avutometinib and defactinib who maintain ongoing clinical benefit while collecting safety and tolerability data during extended treatment. Participation is restricted to patients transferring directly from VS-6766-201(RAMP-201), ensuring continuity of care without enrollment of new patients.

Conditions

Low Grade Ovarian Serous Adenocarcinoma; Ovarian Cancer

Keywords

Low Grade Serous Ovarian Cancer; Recurrent Low-Grade Serous Ovarian Cancer; KRAS; KRAS wt; KRAS mt; LGSOC

Outcome Measures

Primary Outcomes (1)

• Duration of Treatment Exposure to Avutometinib in Combination With Defactinib

  Treatment exposure will be summarized descriptively for participants receiving continued treatment with avutometinib in combination with defactinib after completion of Study VS-6766-201 (RAMP-201).

  Until treatment discontinuation (approximately 20 months)

Secondary Outcomes (1)

• Incidence of Treatment-Emergent Adverse Events (Safety and Tolerability)

  From informed consent until 30 days after the last dose of study treatment (approximately 20 months plus 30 days).

Study Arms (1)

Continued Treatment of Avutometinib + Defactinib

EXPERIMENTAL

To provide continued treatment with avutometinib in combination with defactinib for participants with recurrent LGSOC who are deriving continued clinical benefit after completion of the VS-6766-201 (RAMP-201) study

Drug: avutometinib + defactininb combination

Interventions

avutometinib + defactininb combination DRUG

Avutometinib: administered orally twice a week Defactinib: administered orally twice daily

Also known as: avutometinib (VS-6766) and defactinib (VS-6063)

Continued Treatment of Avutometinib + Defactinib

Eligibility Criteria

• Age: 18 Years+
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Currently active on VS-6766-201(RAMP-201) study while receiving avutometinib in combination with defactinib, have not required prior permanent discontinuation of avutometinib plus defactinib. Any active dose hold from the RAMP-201 study should be ≤ 28 days at the time of Screening for the OLE study.
• Investigator assessment that the participant is deriving clinical benefit from study treatment (e.g., complete response, partial response, or stable disease), as determined by the investigator.
• Female participants of childbearing potential must agree to use a highly effective method of contraception throughout OLE study participation and for at least 30 days after the last dose of study treatment.
• Note: Female participants of childbearing potential must have a negative serum or urine pregnancy test at Screening/Eligibility prior to the first OLE dose.
• Ability and willingness to provide written informed consent for participation in the study and for continued data collection.

You may not qualify if:

• Radiographic or clinical disease progression or discontinuation of treatment for any reason during the VS-6766-201 (RAMP-201) study or at the time of screening in this study.
• Participants on an active dose hold in the VS-6766-201 (RAMP-201) study may transition to this study only after the underlying issue has been clinically resolved and the investigator, in consultation with the Sponsor, confirms that continued treatment is appropriate.
• Receipt of new systemic anti-cancer therapy since participation in the RAMP-201 study.
• Participation in another interventional clinical study or receipt of other investigational therapy since participation in VS-6766-201 (RAMP-201) study.
• Any active or uncontrolled medical condition that, in the investigator's judgment, would pose unacceptable risk or interfere with continued treatment, including but not limited to severe cardiac, pulmonary, neurologic, dermatologic, gastrointestinal, hepatic, or active infectious disease.
• Any active or history of clinically significant ocular disorder that may increase the risk of MEK-inhibitor-related ocular toxicity (e.g., retinal vein occlusion, serous retinopathy, retinal detachment, or clinically significant macular pathology).
• Concomitant use of medications known to have clinically significant interactions with avutometinib or defactinib that cannot be safely discontinued or substituted prior to study dosing (e.g., strong CYP3A4 inducers or inhibitors, warfarin).
• Positive pregnancy test at Screening, breastfeeding, or unwillingness to use adequate contraception during the study.
• Any condition or circumstance that, in the investigator's opinion, may compromise participant safety, compliance or continued benefit from study treatment.

Sponsors & Collaborators

• Verastem, Inc.: lead

Study Sites (2)

Centre Leon Berard

Lyon, 69008, France

Location

Institut Curie

Paris, 75248, France

Location

MeSH Terms

Conditions

Ovarian Neoplasms

Interventions

defactinib

Condition Hierarchy (Ancestors)

Endocrine Gland Neoplasms; Neoplasms by Site; Neoplasms; Ovarian Diseases; Adnexal Diseases; Genital Diseases, Female; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Genital Neoplasms, Female; Urogenital Neoplasms; Genital Diseases; Endocrine System Diseases; Gonadal Disorders

Study Officials

• MD Verastem

  Verastem Oncology

  STUDY DIRECTOR

Central Study Contacts

Verastem Call Center

CONTACT

781-292-4204; clinicaltrials@verastem.com

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 15, 2026
• First Posted: August 5, 2026
• Study Start: August 3, 2026
• Primary Completion (Estimated): August 1, 2027
• Study Completion (Estimated): August 1, 2028
• Last Updated: August 5, 2026

Record last verified: 2026-07

Locations

FR (2)