A Clinical Study of Raludotatug Deruxtecan in People With Ovarian Cancer (MK-5909-003).
Ovarian Cancer Recurrent
What this study involves
The registry says this study is recruiting. Individual locations may have different availability.
- Study type
- Interventional
- Phase
- Phase 1 / Phase 2
- Age range
- 18 years - Not specified
- Sex eligible
- Female
- Healthy volunteers
- Not accepted
- Participants
- 605 Estimated
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
Researchers are looking for other ways to treat high-grade serous and certain other ovarian cancer. High-grade means the cancer cells grow and spread quickly. Serous means the cancer started in the cells that cover the ovaries, the lining of the belly, or in the fallopian tubes.
Standard treatment (usual treatment) for people with high-grade serous ovarian cancer may include:
- Chemotherapy, which is a treatment that uses medicine to destroy cancer cells or stop them from growing
- Targeted therapy, which is a treatment that works to control how specific types of cancer cells grow and spread
Raludotatug deruxtecan (R-DXd) is a study treatment that is an antibody drug conjugate (ADC). An ADC attaches to a protein on cancer cells and delivers treatment to destroy those cells. Researchers want to know if R-DXd is safe to take with other treatments and if people tolerate them together. They also want to learn how many people have the cancer respond (gets smaller or goes away) to the treatments.
Read the full description
This study has 2 parts: Part 1 is a dose escalation phase of R-DXd. Part 2 is the expansion phase and will use the Recommended Phase 2 Dose (RP2D) of R-DXd determined in Part 1.
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Inclusion Criteria:
- Has pathologically documented diagnosis of high-grade serous or high-grade endometrioid epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer
- Participants in Part 1 cohorts and Part 2 Cohort A-2 Arms 1, 2, and 3, Cohort B-2, and Cohort C-2 Arm 3: Has measurable disease per Response Evaluation Criteria In Solid Tumors 1.1
- Participants in Cohort A-1 Arms 2 and 3: Has relapsed disease after 1 to 3 prior lines of therapy and radiographic evidence of disease progression ≥6 months (≥180 days) after the last dose of platinum-based therapy (ie, platinum-sensitive disease)
- Participants in Cohort B-1 and Cohort B-2: Has relapsed disease after 1 to 3 prior lines of therapy and radiographic evidence of disease progression \<6 months (\<180 days) after the last dose of platinum-based therapy (ie, platinum-resistant disease). Participants must have received no more than 1 prior bevacizumab-containing systemic treatment regimen
- Participants in Cohort B-1, Cohort B-2, Cohort C-2 Arm 3, Cohort E-1 and if administering bevacizumab is planned in Cohort D or Cohort A-2 Arms 1, 2, or 3: Is a candidate for bevacizumab treatment
- Has provided tumor tissue for biomarker research (all cohorts)
- Has an Eastern Cooperative Oncology Group performance status of 0 to 1
- Participants in Cohort C-1, Cohort C-2 Arm 3, Cohort D, and Cohort E-1: Has relapsed disease after 1 prior line of therapy, radiographic evidence of disease progression ≥6 months (≥180 days) after the last dose of platinum-based therapy (ie, platinum-sensitive disease) and progressed during prior treatment with poly-ADP ribose polymerase inhibitor (PARPi) in the first-line setting
- Participants in Cohort A-2 Arms 1, 2, and 3: Has relapsed disease after 1 prior line of therapy and radiographic evidence of disease progression ≥6 months (≥180 days) after the last dose of platinum-based therapy (ie, platinum-sensitive disease)
- Participants in Cohort C-2 Arms 1 and 2: Has a new, histologically confirmed diagnosis of International Federation of Gynecology and Obstetrics Stage III or Stage IV epithelial ovarian cancer (high-grade serous or high-grade endometrioid), fallopian tube cancer, or primary peritoneal cancer that is non-homologous recombination deficiency-positive
- Participants in Cohort C-2 Arms 1 and 2: According to the investigator's assessment, PARPi first-line maintenance treatment for non- homologous recombination deficiency (HRD)-positive disease is not the preferred option for the participant
- Participants in Cohort C-2 Arms 1 and 2: According to the investigator's assessment, bevacizumab treatment for non-HRD-positive disease is not the preferred option for the participant
Exclusion Criteria:
- Has any of the following within 6 months before allocation/randomization: cerebrovascular accident, transient ischemic attack, or other arterial thromboembolic event
- 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, and any autoimmune, connective tissue, or inflammatory disorders with potential pulmonary involvement, or prior pneumonectomy
- Has ≥Grade 2 peripheral neuropathy
- Has received prior treatment with cadherin-6-targeted agents
- Has received prior systemic anticancer therapy including investigational agents within 4 weeks or 5 half-lives (whichever is shorter) before allocation
- Has received prior radiotherapy within 2 weeks of the start of study intervention, or has radiation-related toxicities, requiring corticosteroids
- Receives chronic steroid treatment
- Has known additional malignancy that is progressing or has required active treatment within the past 3 years
- Has known active CNS metastases and/or carcinomatous meningitis
- Has any history of interstitial lung disease (ILD)/pneumonitis irrespective of prior steroid use, current ILD, or suspected ILD, or ILD that cannot be ruled out by imaging at screening
- Has active infection requiring systemic therapy
- HIV-infected participants with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease
Treatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Not randomized
- Masking
- No masking
Cohort A-1 Arm 1 (R-DXd + Carboplatin Dose 1)
Participants receive escalating doses of intravenous (IV) raludotatug deruxtecan (R-DXd) in combination with carboplatin at Dose 1. Participants can receive up to a maximum of six 3-week cycles of carboplatin (approximately 4 months) and will receive raludotatug deruxtecan until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Drug: Carboplatin · Drug: Rescue Medication
Cohort A-1 Arm 2 (R-DXd + Paclitaxel)
Participants receive escalating doses of IV R-DXd in combination with paclitaxel. Participants can receive up to a maximum of six 3-week cycles of paclitaxel (approximately 4 months) and will receive R-DXd until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Drug: Paclitaxel · Drug: Rescue Medication
Cohort A-1 Arm 3 (R-DXd + Carboplatin Dose 2)
Participants receive escalating doses of intravenous (IV) R-DXd in combination with carboplatin at Dose 2. Participants can receive up to a maximum of six 3-week cycles of carboplatin (approximately 4 months) and will receive R-DXd until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Drug: Carboplatin · Drug: Rescue Medication
Cohort B-1 (R-DXd + Bevacizumab)
Participants receive escalating doses of IV R-DXd in combination with bevacizumab until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Biological: Bevacizumab · Drug: Rescue Medication
Cohort B-2 (R-DXd RP2D + Bevacizumab)
Participants with platinum-resistant recurrent ovarian cancer (PRROC) receive recommended Phase 2 dose (RP2D) of IV R-DXd in combination with bevacizumab until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Biological: Bevacizumab · Drug: Rescue Medication
Cohort C-1 (R-DXd + Pembrolizumab)
Participants receive escalating doses of IV R-DXd in combination with pembrolizumab. Participants can receive up to a maximum of thirty-five 3-week cycles of pembrolizumab (approximately 2 years) and will receive R-DXd until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Drug: Rescue Medication · Biological: Pembrolizumab
Cohort D (R-DXd +/- Bevacizumab)
Participants with platinum-sensitive recurrent ovarian cancer (PSROC) receive IV R-DXd in combination with or without bevacizumab until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Biological: Bevacizumab · Drug: Rescue Medication
Cohort A-2 Arm 1 (R-DXd RP2D + Carboplatin +/- Bevacizumab)
Participants with PSROC will receive the RP2D of R-DXd in combination with a maximum of 6 cycles of carboplatin with or without bevacizumab, until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Drug: Carboplatin · Biological: Bevacizumab · Drug: Rescue Medication
Cohort A-2 Arm 2 (R-DXd RP2D + Paclitaxel +/- Bevacizumab)
Participants with PSROC will receive the RP2D of R-DXd in combination with a maximum of 6 cycles of paclitaxel with or without bevacizumab, until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Drug: Paclitaxel · Biological: Bevacizumab · Drug: Rescue Medication
Cohort A-2 Arm 3 (Platinum-Based Doublet Chemotherapy +/- Bevacizumab)
Participants with PSROC will receive one of 3 regimens of investigator's choice of platinum-based doublet chemotherapy with or without bevacizumab. Platinum-based doublet chemotherapy will be administered for maximum of 8 cycles. Bevacizumab can be administered until disease progression or discontinuation.
Drug: Carboplatin · Drug: Paclitaxel · Biological: Bevacizumab · Drug: Gemcitabine · Drug: Pegylated liposomal doxorubicin
Cohort E-1 (R-DXd + MK-2010)
Participants receive escalating doses of IV R-DXd in combination with MK-2010. Participants can receive up to a maximum of thirty-five 3-week cycles of MK-2010 (approximately 2 years) and will receive R-DXd until disease progression or discontinuation.
Biological: Raludotatug Deruxtecan · Drug: Rescue Medication · Drug: MK-2010
Cohort C-2 Arm 1 (Carboplatin + Paclitaxel + Pembrolizumab → R-DXd + Pembrolizumab)
Participants will receive carboplatin (Dose 1 or Dose 2), paclitaxel (five 3-week cycles), and pembrolizumab during the induction phase. During the maintenance phase, participants will receive RP2D of IV R-DXd (up to 2 years; participants with PR or SD at 2 years may continue until disease progression) in combination with pembrolizumab (up to thirty-five 3-week cycles).
Biological: Raludotatug Deruxtecan · Drug: Carboplatin · Drug: Paclitaxel · Biological: Pembrolizumab
Cohort C-2 Arm 2 (Carboplatin + Paclitaxel)
Participants will receive carboplatin (Dose 1 or Dose 2) and paclitaxel (seven 3-week cycles), followed by standard of care observation.
Drug: Carboplatin · Drug: Paclitaxel
Cohort C-2 Arm 3 (R-DXd + Pembrolizumab + Bevacizumab)
Participants with PSROC will receive RP2D of R-DXd in combination with pembrolizumab (up to thirty-five 3-week cycles) and bevacizumab until progressive disease.
Biological: Raludotatug Deruxtecan · Biological: Bevacizumab · Biological: Pembrolizumab
Raludotatug Deruxtecan BIOLOGICAL
IV infusion on Day 1 of every 3-week cycle.
Carboplatin DRUG
IV infusion on Day 1 of every 3-week cycle for a maximum of 6 cycles.
Paclitaxel DRUG
IV infusion on Day 1 of every 3-week cycle for a maximum of 6 cycles.
Bevacizumab BIOLOGICAL
IV infusion on Day 1 of every 3-week cycle.
Rescue Medication DRUG
Includes 5-HT3 Serotonin Receptor Antagonist, NK-1 receptor antagonist, and corticosteroid, administered per protocol.
Pembrolizumab BIOLOGICAL
IV infusion on Day 1 of every 3-week cycle for a maximum of 35 cycles.
Gemcitabine DRUG
IV injection on days 1 and 8 of each 3-week Cycle
Pegylated liposomal doxorubicin DRUG
IV injection administered on Day 1 of each 4-week cycle
MK-2010 DRUG
IV infusion on Day 1 of every 3-week cycle
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
Part 1: Number of Participants Who Experience a Dose-limiting Toxicity (DLT) Per Common Terminology Criteria for Adverse Events, Version 5.0 (CTCAE v5.0)
Time frame: Up to 21 days
DLTs are defined as toxicities during the DLT evaluation period that are assessed by the investigator to be possibly, probably, or definitely related to study treatment and include: Grade 4 thrombocytopenia of any duration or Grade 3 thrombocytopenia lasting ≥7 days; Grade 3 or higher thrombocytopenia associated with clinically significant bleeding; Grade 4 lymphocytopenia lasting ≥14 days; Grade 4 anemia of any duration; any other Grade 4 hematologic toxicity lasting ≥7 days; febrile neutropenia Grade 3 or Grade 4 meeting pre-specifications; pre-specified hepatic organ toxicities; all Grade 3 or higher other nonhematologic toxicities except those pre-specified; other pre-specified nonhematologic toxicities; any delay in treatment with the planned dose of ≥21 days or discontinuation of treatment due to a toxicity during the DLT evaluation period, or Grade 5 toxicity. The number of participants with DLTs will be reported.
Part 1: Number of Participants with One or More Adverse Events (AEs)
Time frame: Up to approximately 3 years
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. The number of participants with one or more AEs will be reported.
Part 1: Number of Participants who Discontinue Study Intervention Due to an AE
Time frame: Up to approximately 3 years
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. The number of participants who discontinue study intervention due to an AE will be reported.
Part 2: Objective Response Rate (ORR)
Time frame: Up to approximately 3 years
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.
Part 2: Progression Free Survival (PFS) - Cohort C-2 Arm 1 and Arm 2
Time frame: Up to approximately 3 years
PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first as assessed by Response Criteria in Solid Tumors Version 1.1 (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 demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by blinded independent central review (BICR) will be presented.
Secondary measures
Part 1: Objective Response Rate (ORR)
Time frame: Up to approximately 3 years
ORR is defined as the percentage of participants who have a confirmed Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per Response Evaluation Criteria In Solid Tumours version 1.1 (RECIST 1.1). ORR will be assessed by blinded independent central review (BICR).
Part 2: Duration of Response (DOR)
Time frame: Up to approximately 3 years
For participants who demonstrate a confirmed 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), DOR is defined as the time from first documented evidence of CR or PR until progressive disease (PD) or death. Per RECIST 1.1, PD 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 PD. DOR as assessed by Blinded Independent Central Review (BICR) will be presented.
Part 2: PFS - Cohort A-2 Arm 2 and Arm 3
Time frame: Up to approximately 3 years
PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first as assessed by Response Criteria in Solid Tumors Version 1.1 (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 demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by blinded independent central review (BICR) will be presented.
Part 2: Overall Survival (OS)
Time frame: Up to approximately 5 years
OS is defined as the time from the first dose of study treatment to death due to any cause.
Part 2: Number of Participants with One or More AEs
Time frame: Up to approximately 3 years
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. The number of participants who discontinue study intervention due to an AE will be reported.
Part 2: Number of Participants who Discontinue Study Intervention Due to an AE
Time frame: Up to approximately 3 years
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. The number of participants who discontinue study intervention due to an AE will be reported.
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (41)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
41 locations
Yale-New Haven Hospital-Smilow Cancer Hospital at Yale-New Haven ( Site 0019)New Haven, Connecticut, United StatesRecruiting
The University of Louisville, James Graham Brown Cancer Center ( Site 0009)Louisville, Kentucky, United StatesRecruiting
TRIALS 365 ( Site 0020)Shreveport, Louisiana, United StatesRecruiting
Dana-Farber Cancer Institute ( Site 0015)Boston, Massachusetts, United StatesRecruiting
Memorial Sloan Kettering Cancer Center ( Site 0003)New York, New York, United StatesRecruiting
OU Health University of Oklahoma Medical Center ( Site 7000)Oklahoma City, Oklahoma, United StatesRecruiting
Texas Oncology - DFW ( Site 8000)Fort Worth, Texas, United StatesRecruiting
Houston Methodist Hospital ( Site 0010)Houston, Texas, United StatesCompleted
START Mountain Region ( Site 0008)West Valley City, Utah, United StatesRecruiting
University of Virginia Health System ( Site 0011)Charlottesville, Virginia, United StatesRecruiting
Western Health-Sunshine & Footscray Hospitals ( Site 1002)St Albans, Victoria, AustraliaRecruiting
Princess Margaret Cancer Centre ( Site 0101)Toronto, Ontario, CanadaRecruiting
Centre Hospitalier de l'Université de Montréal ( Site 0102)Montreal, Quebec, CanadaRecruiting
McGill University Health Centre ( Site 0100)Montreal, Quebec, CanadaRecruiting
Rambam Health Care Campus ( Site 0202)Haifa, IsraelRecruiting
Shaare Zedek Medical Center ( Site 0201)Jerusalem, IsraelRecruiting
Rabin Medical Center ( Site 0203)Petah Tikva, IsraelRecruiting
Sheba Medical Center ( Site 0200)Ramat Gan, IsraelRecruiting
National Cancer Center ( Site 2004)Goyang-si, Kyonggi-do, South KoreaRecruiting
Seoul National University Hospital ( Site 2000)Seoul, South KoreaRecruiting
Severance Hospital, Yonsei University Health System ( Site 2002)Seoul, South KoreaRecruiting
Asan Medical Center ( Site 2003)Seoul, South KoreaRecruiting
Institut Català d'Oncologia - L'Hospitalet ( Site 0302)L'Hospitalet de Llobregat, Barcelona, SpainRecruiting
HOSPITAL UNIVERSITARIO PUERTA DE HIERRO MAJADAHONDA ( Site 0307)Majadhonda, Madrid, SpainRecruiting
Clinica Universidad de Navarra ( Site 0301)Madrid, Madrid, Comunidad de, SpainRecruiting
Hospital General Universitario de Valencia ( Site 0305)Valencia, Valenciana, Comunitat, SpainRecruiting
Hospital Universitari Vall d'Hebron-Departamento de Oncologia- VHIO ( Site 0300)Barcelona, SpainRecruiting
Hospital Universitario Fundación Jiménez Díaz-START Madrid-FJD ( Site 0303)Madrid, SpainRecruiting
Hospital Universitario 12 de Octubre ( Site 0304)Madrid, SpainRecruiting
Hospital Universitario Virgen de la Victoria ( Site 0306)Málaga, SpainRecruiting
University Hospital Basel-Gynecology & Gynecologic Oncology ( Site 0802)Basel, Canton of Basel-City, SwitzerlandRecruiting
CHUV (centre hospitalier universitaire vaudois) ( Site 0800)Lausanne, Canton of Vaud, SwitzerlandRecruiting
HOCH Health Ostschweiz ( Site 0801)Sankt Gallen, SwitzerlandRecruiting
National Taiwan University Hospital ( Site 3001)Taipei, TaiwanRecruiting
Chang Gung Medical Foundation-Linkou Branch ( Site 3002)Taoyuan, TaiwanRecruiting
University Hospitals Sussex NHS Foundation Trust ( Site 0404)Brighton, East Sussex, United KingdomRecruiting
Royal Marsden Hospital ( Site 0402)Fulham, England, United KingdomRecruiting
The Royal Marsden NHS Foundation Trust. ( Site 0403)Sutton, England, United KingdomRecruiting
Barts Health NHS Trust ( Site 0401)London, London, City of, United KingdomRecruiting
Guy s & St Thomas NHS Foundation Trust ( Site 0400)London, London, City of, United KingdomRecruiting
The Christie NHS Foundation Trust ( Site 0405)Manchester, United KingdomRecruiting
Study team and timeline
- Lead sponsor
- Merck Sharp & Dohme LLC
- Study start
- Apr 15, 2025 Actual
- Primary completion
- Mar 27, 2029 Estimated
- Study completion
- Feb 7, 2031 Estimated
- First posted
- Feb 25, 2025 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
Official study title
A Phase 1b/2 Open-label, Multicenter Study to Evaluate the Safety and Efficacy of Raludotatug Deruxtecan With or Without Other Anticancer Investigational Agents in Participants With Advanced High-Grade Serous or High-Grade Endometrioid Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancer (REJOICE-Ovarian02)
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Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 12, 2026 · Last registry update: Nov 10, 2026
