RecruitingPhase 3

Testing Olaparib for One or Two Years, With or Without Bevacizumab, to Treat Ovarian Cancer

United States, Japan, Puerto Rico880 participantsStarted 2025-03-12

Plain-language summary

This phase III trial compares the effect of olaparib for one year versus two years, with or without bevacizumab, for the treatment of BRCA 1/2 mutated or homologous recombination deficient stage III or IV ovarian cancer. Olaparib is a polyadenosine 5'-diphosphoribose polymerase (PARP) enzyme inhibitor and may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Bevacizumab is in a class of medications called antiangiogenic agents. It works by stopping the formation of blood vessels that bring oxygen and nutrients to tumor. This may slow the growth and spread of tumor. Giving olaparib for one year with or without bevacizumab may be effective in treating patients with BRCA 1/2 mutated or homologous recombination deficient stage III or IV ovarian cancer, when compared to two years of olaparib.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patients with newly diagnosed, pathologically confirmed, Federation of Gynecology and Obstetrics (FIGO) stage III or IV ovarian cancer of the following types: * High grade serous * High grade endometrioid, and/or * Other epithelial ovarian cancer with BRCA1/2 deleterious alteration (germline or somatic) * Submission of pathology report is required * Ovarian cancer = ovarian, fallopian, or primary peritoneal cancer * Patients must have: * Documented variant (tumor or germline) in BRCA1 or BRCA2 that is predicted to be pathogenic or suspected pathogenic (deleterious alteration) * Submission of testing report is required. OR * BRCA 1/2 wildtype AND known HRD deficient tumor determined by any commercial or academic, Clinical Laboratory Improvement Act (CLIA)-certified laboratory (e.g., Myriad MyChoice©) * Submission of testing report is required * Patient must have undergone cytoreductive surgery (primary or interval) * Patients must have completed first line platinum-based therapy prior to registration: * Platinum based chemotherapy course must have consisted of a minimum of 4 treatment cycles and a maximum of 9, although it is strongly recommended that patients receive at least 6 cycles unless medically contraindicated * For those receiving less than 6 cycles of platinum-based therapy, the reason for this must be documented and could include hematologic toxicity or non-hematologic toxicities directly related to therapy …

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Progression free survival (PFS) at least 360 days after randomization (PFS360)

Timeframe: From completing 360 days of maintenance therapy to disease progression (per Response Evaluation Criteria in Solid Tumors [RECIST] version [v]1.1) or death, whichever occurs first, assessed up to 5 years

Trial details

NCT IDNCT06580314

SponsorNRG Oncology

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2034-12-31

View on ClinicalTrials.gov More Fallopian Tube Endometrioid Adenocarcinoma trials