Patient resources
For help understanding clinical trial listings and for other resources, visit our Clinical Trial Patient Resources section.
Visit the Patient Resources page
Clinical Trials
Merck & Co, Inc, Rahway, NJ, USA, known as MSD outside of the United States and Canada, provides international versions of this site for both healthcare professionals and the general public.
Select a language below to be redirected to the MSD version of the site in your chosen language.
Some of the pages below might be helpful when talking to your patients about joining a clinical trial.