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 Pembrolizumab, Carboplatin, or Paclitaxel. The registry lists allocation as randomized. Researchers are looking for new ways to treat people with proficient mismatch repair (pMMR) endometrial cancer (EC) that is advanced or recurrent.
They plan to enroll about 1,123 people at 271 sites. Taking part typically means taking a study drug (or dummy pill), an infusion or injection of a biologic plus check-ins.
Official title (unrewritten)
A Phase 3 Randomized, Open-label, Multicenter Study to Compare the Efficacy and Safety of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in Combination With Pembrolizumab Versus Pembrolizumab Alone as First-line Maintenance Treatment in Participants With Mismatch Repair Proficient Endometrial Cancer (TroFuse-033/GOG-3119/ENGOT-en29)
Interventions: Pembrolizumab, Carboplatin, Paclitaxel, Docetaxel, Sacituzumab Tirumotecan, Cisplatin
Primary outcome (registry wording): Maintenance Treatment: Progression-Free Survival (PFS)