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 TSR-042 or Dostarlimab, capecitabine or 5-FU, or Intensity Modulated Radiation Therapy (IMRT). The registry lists allocation as randomized. This study wants to find out whether the study drug, TSR-042, followed by standard chemoradiotherapy (the chemotherapy drug capecitabine + radiation therapy) and standard surgery is an effective treatment for advanced dMMR solid tumors.
They plan to enroll about 212 people at 10 sites. Taking part typically means taking a study drug (or dummy pill), a procedure as part of the study plus check-ins.
Official title (unrewritten)
A Phase II Study of Induction PD-1 Blockade in Subjects With Locally Advanced Mismatch Repair Deficient Solid Tumors
Interventions: TSR-042 or Dostarlimab, capecitabine or 5-FU, Intensity Modulated Radiation Therapy (IMRT)
Primary outcome (registry wording): Pathologic complete response (pCR) or complete clinical response (cCR) at 12 months