
Participant resources
Learn about the important role participants play in clinical trials and information to help you decide if joining a clinical trial is right for you.
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.
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Cardiovascular
Cardiovascular (heart and blood vessel) disease (CVD) affects millions of people each year. Through clinical research, we study investigational medications to see whether they can help patients with cardiovascular conditions manage their disease.
That number grows each year, increasing the need for additional treatment options. We’re constantly researching ways to fight heart disease and have been leading the way in cardiovascular research for over 60 years. We’re committed to continuing our research in the hopes of improving patient care.
The most common type of cardiovascular disease is coronary artery disease, which causes heart attacksHeart attackWhen blood flow to part of the heart is suddenly blocked and some heart cells die. Also called Myocardial infarction and strokesStrokeDamage to brain tissue caused when there is not enough blood flow to part of the brain. Also called Cerebrovascular accident (CVA); Cerebral infarction. However, the term cardiovascular disease (CVD) includes all conditions that affect the heart and may include other organ or molecular systems (like blood lipids, coagulation and thrombosisThrombosisBlood clot formation; presence of a blood clot in blood vessel, kidneysKidneysOrgans in the abdomen that filter blood and make urine to remove waste, and lungs, as related to circulation of blood). Additionally, conditions like high blood pressure may contribute to cardiovascular disease.
Merck is researching a range of conditions that patients experience related to cardiovascular disease.
There is a lot to consider when deciding whether to participate in a clinical trial. Any clinical trial includes risks, which the study doctor will review with you. Make sure you understand the risks before participating.
You can also call our clinical trial information center at 1-888-577-8839 to learn more.

If you’re not sure which area of focus you’re interested in, let our match tool guide you with just a few questions.
Below is a list of all available cardiovascular clinical trials. You can narrow the results by choosing options in the dropdown menus below. You can also sort results to show trials nearest to you by entering your city and state in the search field.

Learn about the important role participants play in clinical trials and information to help you decide if joining a clinical trial is right for you.

Learn what clinical trials are and how they work, and get answers to other common questions.