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NCT Number: NCT07318558

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

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, sacituzumab tirumotecan (also called sac-TMT), is a targeted therapy. The goal of this study is to learn if people who receive sac-TMT maintenance treatment with or without bevacizumab live longer without the cancer getting worse than people who receive standard care.

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Key information

Conditions

Ovarian Neoplasms Adnexal Diseases Endocrine Gland Neoplasms Endocrine System Diseases Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Genital Diseases Genital Diseases, Female Genital Neoplasms, Female Gonadal Disorders Neoplasms Neoplasms by Site Ovarian Cancer Ovarian Diseases Urogenital Diseases Urogenital Neoplasms

Age range

18 year and older

Sex eligibility

Female

Study type

Interventional

Phase

Phase 3

Primary location

Hospital Aleman ( Site 2903), Ciudad Autonoma de Buenos Aires, Buenos Aires, Argentina

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

  • Has diagnosis of FIGO 2014 Stage III or Stage IV, histologically confirmed epithelial ovarian, primary peritoneal, or fallopian tube carcinoma with one of the following histologies: high-grade serous, high-grade endometrioid, clear cell carcinoma, or malignant mixed Müllerian tumour with a high-grade serous component. Tumors reported as Grade 2 may be enrolled only if predominately (>50%) Grade 3 features are present.
  • 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.
  • Has well-controlled human immunodeficiency virus (HIV) on antiretroviral therapy if diagnosed with HIV
  • 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, has current pneumonitis/ILD, or has suspected ILD, or pneumonitis that cannot be ruled out by standard diagnostic assessments at Screening.
  • 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.
  • Active or ongoing stomatitis of any grade.

Treatment and study plan

Sacituzumab tirumotecan

Drug

Administered via intravenous (IV) infusion at a dose of 4mg/kg

Other names: sac-TMT, MK-2870, SKB264

Bevacizumab

Drug

Administered via IV infusion at a dose of 15mg/kg

Other names: Avastin, Altuzan, MVASI

Rescue medications

Drug

Participants must receive prophylactic steroid mouthwash (dexamethasone or equivalent). It is recommended that participants receive the following rescue medications prior to sac-TMT infusion, per approved product label: histamine-1 receptor antagonist, histamine-2 receptor antagonist, acetaminophen or equivalent, and dexamethasone or equivalent.

Primary outcomes

  1. Progression-Free Survival (PFS)

    Time frame: Up to approximately 49 months

    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.

Secondary outcomes

  1. Overall Survival (OS)

    Time frame: Up to approximately 78 months

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

  2. Progression-Free Survival 2 (PFS2)

    Time frame: Up to approximately 78 months

    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.

  3. Number of Participants Who Experience an Adverse Event (AE)

    Time frame: Up to approximately 78 months

    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.

  4. Number of Participants Who Discontinue Study Treatment Due to an AE

    Time frame: Up to approximately 78 months

    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.

  5. 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)

    Time frame: Baseline and up to approximately 78 months

    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.

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

    Time frame: Baseline and up to approximately 78 months

    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.

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

    Time frame: Baseline and up to approximately 78 months

    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.

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

    Time frame: Baseline and up to approximately 78 months

    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.

Study contacts

Contact information is provided by the study sponsor or research team.

Toll Free Number

CONTACT

[email protected]

1-888-577-8839

Sponsors and collaborators

Lead sponsor

Merck Sharp & Dohme LLC

Industry

Registry information

Official study 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)

Acronym: TroFuse-021

Important dates

Study start
2026
Primary completion
2033
Study completion
2033
First posted
Jan 6, 2026
Registry last updated
Jul 27, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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