A Phase 3, Open-label, Multicenter, Randomized Trial of Trastuzumab Deruxtecan With Bevacizumab Versus Bevacizumab Monotherapy as First-line Maintenance Therapy in HER2-Expressing Ovarian Cancer (DESTINY-Ovarian01/ENGOT-ov89/GEICO144- O/GOG-3112)
Objective
This clinical trial is designed to evaluate the efficacy and safety of T-DXd in combination with bevacizumab versus bevacizumab monotherapy as first-line maintenance therapy, in participants with human epidermal growth factor 2 (HER2)-expressing (immunohistochemistry [IHC] 3+/2+/1+) advanced high-grade epithelial ovarian cancer.
Eligibility
- Sign and date the tissue prescreening informed consent form (ICF), prior to HER2 central testing. Sign and date the main ICF, prior to the start of any trial- specific qualification procedures. Consent to optional PGx prior to any PGx procedures. For participants in the safety run-in phase, a safety run-in ICF needs to be signed and dated prior to the start of any trial-specific qualification procedures.
- Adults ≥18 years of age on the day of signing the ICF. Follow local regulatory requirements if the legal age of consent for trial participation is >18 years old.
- Has histologically confirmed diagnosis of epithelial high-grade ovarian, fallopian tube or primary peritoneal carcinoma (including but not limiting to serous, endometrioid, clear cell, carcinosarcoma, mucinous).
- Is newly diagnosed FIGO Stage III or IV.
- Has HER2 expression per 2016 ASCO-CAP gastric cancer IHC scoring (3+/2+/1+) guidelines1 by prospective central testing. For participants in the safety run-in phase, HER2 expression assessed by either local (require using ASCO-CAP gastric cancer IHC scoring [IHC 3+/2+/1+] guidelines) or central assessment (if available) is acceptable. Submission of the pathology report is required for participants enrolled based on local HER2 IHC results.
- Has adequate tumor tissue sample available for assessment of HER2 by central laboratory. Tumor tissue block or sufficient tissue slides are required for HER2 testing and retrospective HRD status determination. Participants in the safety run-in phase who are enrolled based on local HER2 IHC results are recommended to provide tumor tissue sample from the same specimen for central assessment.
- Has a local HRD or breast cancer gene (BRCA) test result available. Participants with BRCA wildtype will have a local HRD test results, as applicable.
- Has received standard of care bevacizumab in combination with front line platinum based chemotherapy as per approved indication and clinical guidelines and is eligible to continue single agent bevacizumab maintenance per standard of care and investigator discretion.
NCT ID
NCT06819007
