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 Risvutatug rezetecan (Ris-Rez), or Topotecan. The registry lists allocation as randomized. In this study researchers are testing Risvutatug rezetecan also known as (Ris-Rez) a new medicine that targets specific proteins (B7-H3) on cancer cells, thereby reducing the cancer's ability to grow and spread.
They plan to enroll about 420 people at 128 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)
Phase 3, Multicenter, Randomized, Open-label Clinical Study of GSK5764227, a B7-H3 Antibody Drug Conjugate (ADC), Compared With Topotecan in Participants With Relapsed Small Cell Lung Cancer (SCLC)
Interventions: Risvutatug rezetecan (Ris-Rez), Topotecan
Primary outcome (registry wording): Overall Survival (OS)