What this phase means
Phase 2: researchers already know a roughly safe dose (from phase 1). This stage asks whether the treatment actually helps the condition, and watches side effects more closely.
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 Inavolisib, Enzalutamide, or Abiraterone. The registry lists allocation as randomized. This study will measure the how well it works and safety of the combination of inavolisib plus enzalutamide compared with physician's choice of alternative androgen receptor pathway inhibitor (ARPi) or docetaxel in biomarker-selected participants with metastatic castrate-resistant prostate cancer (mCRPC) who have received one prior second-generation ARPi.
They plan to enroll about 100 people at 50 sites. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
A Phase II, Randomized, Multicenter, Open-Label Study Evaluating the Efficacy and Safety of the Combination of Inavolisib Plus Enzalutamide Versus Physician's Choice of ARPI or Docetaxel in Patients With Metastatic Castration-Resistant Prostate Cancer
Interventions: Inavolisib, Enzalutamide, Abiraterone, Docetaxel
Primary outcome (registry wording): Radiographic Progression-free Survival (rPFS)