Clinical Research Glossary

equivalence equivalence


When two or more things in a study are about the same.

Example of equivalence in a sentence

In clinical research, equivalence often refers to whether two study treatments are almost the same.

More Info

Treatments, therapies, vaccines, evaluation methods and study groups do not have to be exactly equal in order to have equivalence.

Instead, equivalence means that the treatments are about the same in terms of how they work for patients.

Other info to think about when joining a study

You may see the word “equivalence” when a study is trying to see if two or more study treatments have the same effect, or if a study has shown there is equivalence between study treatments.

You may want to ask about whether there are any known possible differences between study treatments that would be important for you to understand given your own personal health concerns and issues.

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