A Clinical Trial of Sac-TMT in People With Non-HRD Positive Advanced Ovarian Cancer (MK-2870-021)

NCT07318558RecruitingPHASE3INTERVENTIONAL

Summary

Key Facts

Lead Sponsor

Merck Sharp & Dohme LLC

Enrollment

900

Start Date

2026-02-16

Completion Date

2033-02-25

Study Type

INTERVENTIONAL

Official Title

A Phase 3, Randomized, Open-label, Multicenter Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) 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 (TroFuse-021/ENGOTov85/GOG-3102)

Interventions

Sacituzumab tirumotecanBevacizumabRescue Medications

Conditions

Ovarian NeoplasmsOvarian Cancer

Eligibility

Age Range

18 Years+

Sex

FEMALE

The main inclusion criteria include but are not limited to the following:

* Has histologically confirmed epithelial ovarian, primary peritoneal, or fallopian tube carcinoma of certain histologies.
* Has completed primary debulking surgery or interval debulking surgery.
* 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.
* If human immunodeficiency virus (HIV) infected, has well-controlled HIV on antiretroviral therapy.
* Has undetectable hepatitis B virus (HBV) viral load and received HBV antiviral therapy if hepatitis B surface antigen (HBsAg)-positive.
* Has undetectable hepatitis C virus (HCV) viral load if has a history of HCV infection.

The main exclusion criteria include but are not limited to the following:

* Has nonepithelial cancers, low-grade serous tumors, low-grade endometrioid tumors, borderline tumors. mucinous, seromucinous that is predominantly mucinous, malignant Brenner's tumor, and undifferentiated carcinoma.
* Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis.
* Has a history of severe eye disease.
* Has active inflammatory bowel disease requiring immunosuppressive medication or a previous history of inflammatory bowel disease.
* Has uncontrolled, significant cardiovascular disease or cerebrovascular disease.
* Has a history of (noninfectious) pneumonitis/interstitial lung disease (ILD), which required steroids, or has current pneumonitis/ILD.
* Received prior systemic anticancer therapy, with the exception of the first-line platinum-based chemotherapy required by the inclusion criteria.
* Had a live or live-attenuated vaccine within 30 days of randomization.
* Has a known additional malignancy that is progressing or required active treatment within the past 3 years.
* Has active infection requiring systemic therapy.
* Has concurrent and active HBV and HCV infections.
* Has HIV infection and a history of Kaposi's sarcoma and/or multicentric Castleman's disease.
* Has not recovered from major surgery or has ongoing surgical complications.
* Has a homologous recombination deficiency (HRD)-positive, unknown, or inconclusive tumor status as determined by the central laboratory.
* Has active or ongoing stomatitis of any grade.

Outcome Measures

Primary Outcomes

Progression-Free Survival (PFS)

PFS 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.

Time frame: Up to approximately 49 months

Secondary Outcomes

Overall Survival (OS)

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

Time frame: Up to approximately 78 months

Progression-Free Survival 2 (PFS2)

PFS2 as assessed by investigator 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.

Time frame: Up to approximately 78 months

Number of Participants Who Experience an Adverse Event (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.

Time frame: Up to approximately 78 months

Number of Participants Who Discontinue Study Treatment 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.

Time frame: Up to approximately 78 months

Change From Baseline in Global Health Status/Quality of Life (GHS/QoL) Combined Score (Items 29 and 30) Using the European Organisation for Research and Treatment of Cancer QoL Questionnaire-Core 30 (EORTC QLQ-C30)

EORTC QLQ-C30 is a questionnaire to assess the overall quality of life (QoL) 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.

Time frame: Baseline, and at designated time points up to approximately 78 months

Change From Baseline in Physical Functioning Combined Score (Items 1 to 5) Using EORTC QLQ-C30

EORTC QLQ-C30 is a questionnaire to assess the overall QoL of cancer patients. Participant responses to 5 questions about their physical functioning are scored on a 4-point scale (1 = Not at All to 4 = Very Much). The combined score is computed by averaging the raw scores of the 5 questions and then applying a linear transformation to standardize the average score, so that the combined score ranges from 0 to 100. A higher score indicates a better outcome. The change from baseline in the EORTC QLQ-C30 physical functioning combined score will be presented.

Time frame: Baseline, and at designated time points up to approximately 78 months

Change From Baseline in Role Functioning Combined Score (Items 6 and 7) Using EORTC QLQ-C30

EORTC QLQ-C30 is a questionnaire to assess the overall QoL of cancer patients. Participant responses to 2 questions about their role functioning are scored on a 4-point scale (1 = Not at All to 4 = Very Much). The combined score is computed by averaging the raw scores of the 2 items and then applying a linear transformation to standardize the average score, so that the combined score ranges from 0 to 100. A higher score indicates a better outcome. The change from baseline in the EORTC QLQ-C30 role functioning combined score will be presented.

Time frame: Baseline, and at designated time points up to approximately 78 months

Change From Baseline in Abdominal/Gastrointestinal (GI) Symptoms Combined Score Using the EORTC QLQ-Ovarian Cancer Module 28 (OV28)

EORTC 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.

Time frame: Baseline, and at designated time points up to approximately 78 months

Locations

Mount Sinai Cancer Center ( Site 0029), Miami Beach, United States

Rambam Health Care Campus ( Site 1422), Haifa, Israel

Iwate Medical University Hospital ( Site 1610), Shiwa-gun, Japan

Cancer Institute Hospital of JFCR ( Site 1614), Koto, Japan

Niigata Cancer Center Hospital ( Site 1608), Niigata, Japan

Severance Hospital ( Site 2302), Seodaemun-Gu, South Korea

Keimyung University Dongsan Hospital ( Site 2304), Daegu, South Korea

Seoul National University Hospital ( Site 2301), Seoul, South Korea

Asan Medical Center ( Site 2305), Seoul, South Korea

Linkou Chang Gung Memorial Hospital ( Site 2605), Taoyuan District, Taiwan

A Clinical Trial of Sac-TMT in People With Non-HRD Positive Advanced Ovarian Cancer (MK-2870-021)