Science & Innovation

Clinical Trials

Biogen’s mission is to discover, develop and deliver innovative therapies that improve the lives of patients.

We are grateful to the patients, healthy volunteers, families, hospitals and clinics that participate in the clinical trials for testing our potential therapies. Each individual’s participation contributes enormously to our understanding of disease and has the potential to benefit patients around the world.

Deciding to participate in a clinical trial requires careful consideration. In most cases, the therapies investigated in clinical trials are not yet approved by regulatory agencies like the Food and Drug Administration (FDA) in the United States. The benefits and risks of taking investigational drugs are not completely known. By volunteering for a clinical trial, you are helping the medical community determine whether new investigational drugs are safe and effective.

About the clinical trial process

Biogen is conducting numerous clinical trials in neurologic and immunologic diseases to evaluate the efficacy and safety of potential therapies.

View our current pipeline to learn more about clinical trials for specific conditions

See detailed information on currently enrolling clinical trials for Biogen investigational and marketed therapies on

Biogen Trial Link: Through Biogen Trial Link, we hope to connect patients, caregivers and healthcare professionals with education and information about our clinical trials.

Download our Learning about Clinical Trials brochure (also available in Spanish)

For Investigators

If you are interested in learning more about our clinical programs and how you can get involved in our research, please contact us at

Learn more about Investigator-Initiated Research (IIRs)

Transparency & Data Sharing

Learn more about Biogen’s Clinical Trial Transparency policy and our commitment to sharing information about our clinical research with patients and researchers to improve public health.