What this phase means
Phase 3: this treatment already looked useful in smaller studies. Now it is tested in a large group, often against standard care or a dummy treatment, to see if it should be approved.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are Trastuzumab Deruxtecan, or Bevacizumab. The registry lists allocation as randomized. This clinical trial is designed to measure the how well it works and safety of T-DXd in combination with bevacizumab versus bevacizumab this drug alone 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.
They plan to enroll about 582 people at 232 sites. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
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/APGOT-OV13)
Interventions: Trastuzumab Deruxtecan, Bevacizumab
Primary outcome (registry wording): Progression Free Survival (PFS) by Blinded Independent Central Review (BICR) in the HER2 IHC 3+/2+ Population