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Clinical trials

Clinical trials help find new treatments to help save and improve lives.

Our progress is due in large part to the important and tough scientific questions we set out to answer with our trials and collaborations.

Find a trial

What is a clinical trial?

Clinical trials are research studies with volunteers designed to learn more about how
our bodies respond to drugs or other treatments. We are grateful to the thousands of volunteers who participate in our clinical trials – making this all possible.

doctor and patient discussion

There are clinical trials in progress

Our medical advances can only happen through the efforts of many people, especially the patients who volunteer for clinical trials. They are our partners in research.

a patients medical team meeting

Policies and perspectives

We are committed to disclosing balanced, complete and accurate information about our registered clinical trials of marketed products, regardless of outcome.

Learn more about our clinical trials policies and perspectives.

Expanded Access Programs (EAP)

Participation in clinical trials should be the primary route by which patients get access to investigational medicines, and contribute to the collection of safety and efficacy data needed to support regulatory approval worldwide. For patients with a serious or life-threatening disease who are ineligible or unable to participate in a clinical trial, use of an expanded access program may be an option.

Learn more about Expanded Access Programs (EAP)

Patient volunteers are our heroes

We strive to create clinical trials as diverse as the patients we serve. See the stories behind our work.

View our stories

How we kept clinical trials on track amid COVID-19

Merck’s head of global clinical trial operations talks pivoting during a worldwide pandemic

See how

Next: How we kept clinical trials on track amid COVID-19

Podcast: How to bridge diversity gaps in cancer clinical trials

Luther Clark talks with Lazarex Cancer Foundation's Dana Dornsife and Marya Shegog about increasing access among historically underrepresented communities

Read more

Next: Podcast: How to bridge diversity gaps in cancer clinical trials

Childhood cancer patient dedicates his life to clinical trial research

After participating in a pediatric leukemia study, Arjan Ooms’ life has come full circle as our director of clinical research in the Netherlands

Read more

Next: Childhood cancer patient dedicates his life to clinical trial research

We’re training more minority investigators to help improve diversity in clinical trials

Our company has partnered with National Medical Fellowships to help expand the pool of minority principal investigators

Read more

Next: We’re training more minority investigators to help improve diversity in clinical trials

How we kept clinical trials on track amid COVID-19

Merck’s head of global clinical trial operations talks pivoting during a worldwide pandemic

See how

Next: How we kept clinical trials on track amid COVID-19

Podcast: How to bridge diversity gaps in cancer clinical trials

Luther Clark talks with Lazarex Cancer Foundation's Dana Dornsife and Marya Shegog about increasing access among historically underrepresented communities

Read more

Next: Podcast: How to bridge diversity gaps in cancer clinical trials

Childhood cancer patient dedicates his life to clinical trial research

After participating in a pediatric leukemia study, Arjan Ooms’ life has come full circle as our director of clinical research in the Netherlands

Read more

Next: Childhood cancer patient dedicates his life to clinical trial research

We’re training more minority investigators to help improve diversity in clinical trials

Our company has partnered with National Medical Fellowships to help expand the pool of minority principal investigators

Read more

Next: We’re training more minority investigators to help improve diversity in clinical trials

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Three African women enjoying food together

Our commitment to patients is unwavering

As long as there are patients still in hospitals, doctors and nurses desperate to add years to the lives of their patients and a world where treatments aren’t accessible to all, we will be here: fighting with all we have to deliver more, sooner.