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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Ensayo clínico controlado

Controlled clinical trial (kun-TROLD KLIH-nih-kul TRY-ul)
A clinical study that includes a comparison (control) group. The comparison group receives a placebo, another treatment, or no treatment at all.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.