What is a clinical trial?

Definition

A clinical trial tests questions about an intervention's safety, dosage, effectiveness or comparative value in people. The protocol defines eligibility, treatment, measurements, oversight and how outcomes will be analyzed.

Trials are part of the evidence-producing system that cannot be replaced by a more capable model. Artificial intelligence may support design or analysis, but participant protection, regulation, measured outcomes and independent review remain essential.

Acronyms and aliases

interventional clinical study synonymhuman clinical trial variant

Frequently asked questions

Why are clinical trials needed after laboratory results?

Laboratory and animal findings may not predict safety or effectiveness in people, so controlled human evidence is needed before broad medical use.

Can AI replace a clinical trial?

No. AI can support planning or analysis, but it cannot substitute for measured evidence about how an intervention affects human participants.

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