MedicalTerminology DB
Clinical Research & Statistics

mean survival time

Meaning of mean survival time: The average time that patients in a clinical study remained alive.

Definition of mean survival time

The average time that patients in a clinical study remained alive. The time is measured beginning either at diagnosis or the start of treatment. Also called mean survival.

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.