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A Study of Raludotatug Deruxtecan With or Without Bevacizumab as First-Line Maintenance Treatment in Non-HRD-Positive Advanced Ovarian Cancer (MK-5909-006, (ENGOT-ov102/GOG-3141/ REJOICE-Ovarian 04)

A Phase 3, Randomized, Open-label Study of Raludotatug Deruxtecan (MK-5909, R-DXd) Maintenance Treatment With or Without Bevacizumab Versus Standard of Care in Participants With Newly-Diagnosed Advanced Non-HRD-Positive Ovarian Cancer Following First-line Platinum-based Chemotherapy (ENGOT-ov102/MITO/GOG-3141/ REJOICE-Ovarian 04)

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07776691
Enrollment
802
Registered
2026-08-20
Start date
2026-09-22
Completion date
2034-10-22
Last updated
2026-09-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ovarian Cancer, Ovarian Neoplasms, Peritoneal Cancer, Fallopian Tube Cancer

Brief summary

Researchers are looking for new ways to treat ovarian cancer (OC). Current treatment for OC may start with surgery to remove as much of the cancer as possible. After surgery, people may receive chemotherapy. After chemotherapy, standard care options may include: Maintenance treatment, which is used after another therapy to keep the cancer from growing, spreading, or coming back. Bevacizumab is a targeted therapy used as standard maintenance treatment. Targeted therapy works to control how specific types of cancer cells grow and spread. Observation, which is watching to see if cancer grows or worsens. The study medicine, raludotatug deruxtecan- R-DXd, is a targeted therapy. The goal of this study is to learn if people who receive R-DXd maintenance treatment with or without bevacizumab live longer without the cancer getting worse than people who receive standard care.

Interventions

BIOLOGICALR-DXd

R-DXd administered as an intravenously (IV) infusion

DRUGBevacizumab

Administered as an intravenously IV infusion

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY
Daiichi Sankyo
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

The main inclusion criteria include but are not limited to the following: * Has a new, histologically confirmed diagnosis of International Federation of Gynecology and Obstetrics (FIGO) Stage III or Stage IV epithelial ovarian cancer (EOC) (high grade serous or high grade endometrioid), fallopian tube cancer, or primary peritoneal cancer * Has undergone primary debulking surgery (PDS) or interval debulking surgery (IDS) * Has completed first-line (1L) platinum-based chemotherapy, with a response of stable disease, partial response, complete response or no evidence of disease per protocol * Has provided tumor tissue that is not previously irradiated * Who have AEs due to previous anticancer therapies must have recovered to Grade ≤1 or baseline (except alopecia or vitiligo), as assessed by the physician investigator * Human immunodeficiency virus (HIV)-infected participants must have well-controlled HIV on antiretroviral therapy (ART)

Exclusion criteria

The main

Design outcomes

Primary

MeasureTime frameDescription
Progression-Free Survival (PFS)Up to approximately 4 yearsPFS is defined as the time from randomization to the first documented progressive disease (PD) per Response Evaluation Criteria In Solid Tumors (RECIST) 1.1 by blinded independent central review (BICR) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD 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 have demonstrated an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD.
Overall Survival (OS)Up to approximately 5.5 yearsOS is defined as the time from randomization to death due to any cause.

Secondary

MeasureTime frameDescription
Progression-Free Survival 2 (PFS2)Up to approximately 5.5 yearsPFS2 as assessed by investigator is defined from time from randomization to the documented subsequent objective disease progression after initiation of new anticancer therapy, or death from any cause, whichever occurs first
Change From Baseline in Global Health Status/Quality of Life (GHS/QoL) Score (Item 30) Using the European Organisation for Research and Treatment of Cancer QoL Questionnaire-Core 30 (EORTC QLQ-C30)Baseline and up to approximately 4 yearsThe 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 score will be presented.
Change From Baseline in Abdominal/Gastrointestinal (GI) Symptoms Combined Score Using the EORTC QLQ-Ovarian Cancer Module 28 (OV28)Baseline and up to approximately 4 yearsEORTC QLQ-OV28 is an OC-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.
Number of Participants who Experience an Adverse Event (AE)Up to approximately 4 yearsAn AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who experience an AE will be reported.
Number of Participants who Discontinue Study Treatment due to an AEUp to approximately 4 yearsAn AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who discontinue study treatment due to an AE will be reported.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 12, 2026