arm types
- Guideline or reference source
- ClinicalTrials.gov Glossary of common site terms
- Definition
- A general description of the clinical study arm. It identifies the role of the intervention that participants will receive. Types of arms include Experimental, Active comparator, Placebo comparator, Sham comparator, and No intervention. (See also Arm Type data element on ClinicalTrials.gov.)
- Narrower Term
- active comparator arm
- experimental arm
- no intervention arm
- placebo comparator arm
- sham comparator arm
- Related Term
- sequence arm
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