Phase I/II Trial

**Semantic type:** Research Activity

**Definition:** A clinical research protocol designed to study the safety, dosage levels and response to new treatment. Phase I/II trials combine a Phase I and a Phase II trial of the same treatment into a single protocol.

**Synonyms:** - 1-2 - PHASE I/II TRIAL - Phase 1/Phase 2 - Phase I/II trial - Trial Phase 1-2 - Trial Phase 1/2