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 Fluorouracil, Leucovorin Calcium, or Oxaliplatin. The registry lists allocation as randomized. This phase III trial compares the effect of modified fluorouracil, leucovorin calcium, oxaliplatin, and irinotecan (mFOLFIRINOX) with or without nivolumab to the effect of modified fluorouracil, leucovorin calcium, and oxaliplatin (mFOLFOX) with or without nivolumab for the treatment of patients with advanced, unresectable, or metastatic HER2 negative esophageal, gastroesophageal junction, or gastric adenocarcinoma.
They plan to enroll about 382 people at 802 sites. Taking part typically means taking a study drug (or dummy pill), an infusion or injection of a biologic, a procedure as part of the study plus check-ins.
Official title (unrewritten)
Randomized Phase III Trial of mFOLFIRINOX vs. FOLFOX With Nivolumab for First-Line Treatment of Metastatic HER2- Gastroesophageal Adenocarcinoma
Interventions: Fluorouracil, Leucovorin Calcium, Oxaliplatin, Irinotecan, Nivolumab, Magnetic Resonance Imaging, Computed Tomography, Biospecimen Collection, Questionnaire Administration
Primary outcome (registry wording): Overall survival (OS)