Glossary term

Clinical trial: A clinical trial is a structured research study designed to test a treatment in people. Some trials compare a medicine with placebo or standard care.

EssentialResearchSource quality: HighLast updated: 29 June 2026

Why this term matters

Patients need this term to understand why evidence strength differs between products and conditions.

UK medical cannabis context

NHS notes that some cannabis-based products may be prescribed for pain only as part of a clinical trial.

What not to assume

Trial results do not always translate neatly into routine care.

Careful wording: Avoid presenting trial participation as routine access.

Related glossary terms

Related MCPH pages

Sources and review notes

This entry is educational vocabulary, not medical advice. Suitability, prescribing, product choice and monitoring belong with a qualified clinician or pharmacist.