MedicalTerminology DB
General Medical Terms

phase II/III trial

Meaning of phase II/III trial: A trial to study response to a new treatment and the effectiveness of the treatment compared with the standard treatment regimen.

Definition of phase II/III trial

A trial to study response to a new treatment and the effectiveness of the treatment compared with the standard treatment regimen.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.