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 Biospecimen Collection, Cetuximab, or Computed Tomography. The registry lists allocation as randomized. This phase III trial compares the effect of adding cetuximab to pembrolizumab versus pembrolizumab alone in treating patients with head and neck squamous cell carcinoma (HNSCC) that has come back after a period of improvement (recurrent) and/or that has spread from where it first started (primary site) to other places in the body (metastatic).
They plan to enroll about 158 people at 202 sites. Taking part typically means 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 Pembrolizumab vs. Pembrolizumab/Cetuximab in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma With Platinum Refractory Disease
Interventions: Biospecimen Collection, Cetuximab, Computed Tomography, Magnetic Resonance Imaging, Pembrolizumab, Positron Emission Tomography
Primary outcome (registry wording): Overall survival (OS)