AzTrials
AzTrials

Ovarian CancerPhase 3NCT07743164

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)

A Phase 3 study testing R-DXd, Bevacizumab and Carboplatin in people with Ovarian Cancer and Peritoneal Cancer, run by Merck Sharp & Dohme LLC at 6 sites in 3 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial 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. Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
R-DXd, Bevacizumab and Carboplatin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
646 participants
Where
6 sitesin 3 countries
Study dates
7 Oct 2026to 31 Aug 2031
Phase
Phase 3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

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 [COPD], restrictive lung disease, pleural effusion) and any autoimmune, connective tissue, or inflammatory disorders with potential pulmonary involvement (eg, rheumatoid arthritis, Sjogren's syndrome, sarcoidosis), or prior pneumonectomy.
  • Has received chronic steroid treatment, with some exceptions.
  • Has current, clinically relevant bowel obstruction (including subocclusive disease) including obstruction related to underlying epithelial ovarian cancer, abdominal fistula or GI perforation, intra-abdominal abscess, or evidence of rectosigmoid involvement by pelvic exam.
  • Has known additional malignancy that is progressing or has required active treatment within the past 3 years.

Trial locations and contacts

6 sites in 3 countries. Contact the study team or a site near you to ask about taking part.

Toll Free Number contact

1-888-577-8839

Trialsites@msd.com

6 sites in 3 countries

United States3 sites, 3 recruiting
  • JPS Oncology and Infusion Center ( Site 0019)

    Fort Worth, Texas, 76104

    Study Coordinator, 817-702-7001

    Recruiting
  • MemorialCare Orange Coast Medical Center ( Site 0032)

    Fountain Valley, California, 92708

    Study Coordinator, 562-972-8625

    Recruiting
  • Orlando Health Cancer Institute ( Site 0018)

    Orlando, Florida, 32806

    Study Coordinator, 321-841-1869

    Recruiting

Other trials in United States

Israel2 sites, 2 recruiting
  • Hadassah Medical Center ( Site 2700)

    Jerusalem, 9112001

    Study Coordinator, +97226777333

    Recruiting
  • Sourasky Medical Center ( Site 2701)

    Tel Aviv, 6423906

    Study Coordinator, +97236974444

    Recruiting

Other trials in Israel

Taiwan1 site, 1 recruiting
  • National Cheng Kung University Hospital ( Site 5304)

    Tainan, 704302

    Study Coordinator, +88662353535

    Recruiting

Other trials in Taiwan

About this study

Official title: A Phase 3, Open-Label, Multicenter, Randomized Study of Raludotatug Deruxtecan (MK-5909, R-DXd) With or Without Bevacizumab Versus Standard-of-Care Platinum-Based Doublet Chemotherapy With or Without Bevacizumab in Participants With Advanced Platinum-Sensitive High-Grade Serous or High-Grade Endometrioid Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancer Who Have Progressed During First-Line PARPi Maintenance (ENGOT-ov107 / GOG-3142 / REJOICE-Ovarian05)

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:

Read more
  • 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.

Medical subject headings
Ovarian Neoplasms, Fallopian Tube Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • R-DXdBiological

    Also called raludotatug deruxtecan, MK-5909, DS-6000a

    R-DXd alone or in combination with bevacizumab administered via IV infusion

  • BevacizumabDrug

    Also called AVASTIN®, MVASI®

    Bevacizumab 10 or 15 mg/kg administered via IV infusion on day 1 q3w

  • CarboplatinDrug

    Carboplatin area under the curve (AUC) 5 mg/mL*min or AUC 4 mg/mL*min administered on day 1 q3w for a maximum of 8 cycles

  • PaclitaxelDrug

    Paclitaxel 175 mg/m^2 administered via IV infusion on day 1 q3w for a maximum of 8 cycles

  • GemcitabineDrug

    Gemcitabine 1000 mg/mL administered via IV infusion on day 1 and day 8 of each 3-week cycle for a maximum of 8 cycles

  • Pegylated liposomal doxorubicin (PLD)Drug

    PLD 30 mg/m^2 administered via IV infusion on day 1 of each 4-week cycles for a maximum of 8 cycles

Study groups in NCT07743164
Study groupRoleWhat they receive
R-DXd +/- BevacizumabExperimentalParticipants will receive intravenous (IV) raludotatug deruxtecan (R-DXd) with or without IV bevacizumab for up to 2 years until progressive disease (PD), unacceptable toxicity, or other protocol-specified reason for discontinuation
Receives: Biological: R-DXd; Drug: Bevacizumab
Standard of CareActive comparatorParticipants receive 6 to 8 cycles of investigator's choice of one of three options of platinum-based chemotherapy with or without IV bevacizumab. Bevacizumab treatment if elected, will continue until PD, unacceptable toxicity, or other protocol specified reason for discontinuation
Receives: Drug: Bevacizumab; Drug: Carboplatin; Drug: Paclitaxel; Drug: Gemcitabine; Drug: Pegylated liposomal doxorubicin (PLD)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Progression-free Survival (PFS)

    PFS is defined as the time from randomization to the first documented disease progression per Response Criteria in Solid Tumors Version 1.1 (RECIST 1.1) or death due to any cause, whichever occurs first. Disease progression is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered disease progression. PFS as assessed by blinded independent central review (BICR) will be presented.

    Measured: Up to approximately 3 years

  2. Overall Survival (OS)

    OS is defined as the time from randomization to death due to any cause.

    Measured: Up to approximately 4 years

Secondary outcomes (8)
  1. Number of Participants who Experience One or More Adverse Events (AEs)

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

    An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

    Measured: Up to approximately 3 years

  2. Number of Participants who Discontinue Study Intervention Due to an AE

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

    An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

    Measured: Up to approximately 3 years

  3. Objective Response Rate (ORR)

    ORR is defined as the percentage of participants with Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1). The percentage of participants who experience CR or PR as assessed by Blinded Independent Central Review (BICR) will be presented.

    Measured: Up to approximately 3 years

  4. Duration of Response (DOR)

    For participants who demonstrate confirmed CR or PR, duration of response is defined as the time from the first documented evidence of CR or PR until disease progression or death due to any cause, whichever occurs first. Per RECIST 1.1, disease progression (DP) is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered DP.

    Measured: Up to approximately 3 years

  5. Progression-free Survival 2 (PFS2)

    PFS2 is defined as the time from randomization to the documented subsequent objective disease progression after initiation of new anticancer therapy or death due to any cause, whichever occurs first.

    Measured: Up to approximately 4 years

  6. Time to First Subsequent Anticancer Treatment (TFST)

    TFST is defined as the time from randomization to initiation of first subsequent anticancer treatment or death due to any cause, whichever occurs first.

    Measured: Up to approximately 3 years

  7. Change from Baseline in European Organisation for Research and Treatment of Cancer (EORTC) Core Quality of Life Questionnaire 30- (QLQ-C30) Global Health Status (Item 29) and Quality of Life (Item 30) Combined Score

    EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to the questions "How would you rate your overall health during the past week?" and "How would you rate your overall quality of life during the past week?" are scored on a 7-point scale (1= Very poor to 7=Excellent). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A higher score indicates a better overall health status. The change from baseline in EORTC QLQ-C30 Items 29 and 30 combined score will be presented.

    Measured: Baseline and at designated time points up to approximately 3 years

  8. Change from Baseline in EORTC Quality of Life Questionnaire Ovarian Cancer Module 28 (QLQ-OV28) Abdominal/Gastrointestinal (GI) Scale

    EORTC QLQ-OV28 is an ovarian cancer-specific module to supplement the EORTC QLQ-C30. Participant responses to the 6 abdominal/GI symptoms scale questions are scored on a 4-point scale (1=not at all, 4=very much). The combined score is computed by averaging the raw scores of the 6 items and then applying a linear transformation to standardize the average score, so that the combined score ranges from 0 to 100. The change from baseline in abdominal and gastrointestinal symptoms (EORTC QLQ-OC28 Items 31-36) score will be presented. A lower score indicates a better outcome.

    Measured: Baseline and at designated time points up to approximately 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Aug 2026
  2. Study start7 Oct 2026
  3. Primary completion31 Aug 2031 (estimated)
  4. Study completion31 Aug 2031 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
646 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07743164
Sponsor's protocol ID
5909-008
Other IDs
ENGOT-ov107, GOG-3142, REJOICE-Ovarian05 (RO-05), U1111-1333-3042, MK-5909-008, 2025-525130-59-00, 2025
Status last verified
Oct 2026
First submitted
29 Jul 2026
Last updated
30 Oct 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing R-DXd, Bevacizumab and Carboplatin in people with Ovarian Cancer and Peritoneal Cancer, run by Merck Sharp & Dohme LLC at 6 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 30 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in United States, Israel, Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Toll Free Number (1-888-577-8839, Trialsites@msd.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Progression-free Survival (PFS) (time frame: Up to approximately 3 years). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Oct 2026; AzTrials last refreshed its copy on 8 Nov 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in