Not Yet RecruitingPhase 3

A Clinical Trial of Raludotatug Deruxtecan (R-DXd) With or Without Bevacizumab in Participants With Ovarian Cancer Who Have Progressed During Treatment With PARP-inhibitors Treatment on First Line Maintenance (MK-5909-008/ENGOT-ov107/GOG-3142 / REJOICE-Ovarian05)

646 participantsStarted 2026-07-17

Plain-language summary

Researchers are looking for new ways to treat advanced, high-grade ovarian cancer (OC). Advanced means the cancer has spread to other parts of the body (metastatic) and may not be removed with surgery. High-grade means the cancer cells grow and spread quickly. This trial includes types of OC that started in cells that cover the ovaries, in the lining of the belly, or in the fallopian tubes. The usual treatment for high-grade OC may include one or both of these: * Chemotherapy, which is a treatment that uses medicine to destroy cancer cells or stop them from growing. * Bevacizumab, which is a targeted therapy that works to control how specific types of cancer cells grow and spread and targets tumor blood vessels. Researchers want to learn about the trial medicine, raludotatug deruxtecan (also called R-DXd or MK-5909), when given with and without bevacizumab and how participants respond to it. R-DXd is an antibody drug conjugate (ADC). An ADC is a type of medicine that attaches to a specific target on cancer cells and delivers treatment to destroy those cells. The goals of this trial are to learn if participants who receive R-DXd, with or without bevacizumab, live longer overall and without their cancer growing or spreading compared to those who receive usual treatment.

Who can participate

Age range

18 Years

Sex

FEMALE

See this in plain English?

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

The main inclusion criteria include but are not limited to the following: * Has a histologically or cytologically documented advanced high-grade serous or high-grade endometrioid epithelial ovarian, primary peritoneal, or fallopian tube cancer. * Has received 1 line of platinum-based therapy with a minimum of 4 cycles of platinum-doublet chemotherapy and have platinum-sensitive disease. * Has received a poly (ADP-ribose) polymerase inhibitor (PARPi) as maintenance treatment after the first line platinum-based chemotherapy course and experienced radiographic progression during treatment or within 42 days of the last dose of PARPi. * Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 assessed within 7 days before randomization. * Has recovered from any AEs due to previous anticancer therapies. The main exclusion criteria include but are not limited to the following: * Has clear cell, mucinous, or sarcomatous histology, mixed tumors containing any histology, or low-grade/borderline ovarian cancer. * Has a history of thrombotic disorders, hemorrhage, hemoptysis, or active GI bleeding within 6 months before randomization. * Has uncontrolled or significant cardiovascular disease. * Has clinically severe pulmonary compromise resulting from intercurrent pulmonary illnesses including, but not limited to, any underlying pulmonary disorder (ie, pulmonary emboli within 3 months of randomization, severe asthma, severe chronic obstructive pulmonary disease \[C…

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)

Timeframe: Up to approximately 3 years

Overall Survival (OS)

Timeframe: Up to approximately 4 years

Trial details

NCT IDNCT07743164

SponsorMerck Sharp & Dohme LLC

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2031-08-31

Contact for this trial

Toll Free Number

1-888-577-8839 Trialsites@msd.com

View on ClinicalTrials.gov More Ovarian Cancer trials