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Glossary

Research terms

How trials are run and how to read their results.

Updated

E

Efficacy estimandResearch termsThe efficacy estimand is a trial result that estimates the drug's effect if everyone had kept taking it as planned.

P

PlaceboResearch termsA placebo is an inactive treatment, such as a shot with no drug, used in trials to compare against the real medicine.

T

Treatment-regimen estimandResearch termsThe treatment-regimen estimand is a trial result that includes everyone assigned to the drug, whether or not they kept…