According to the US National Library of Medicine and Johns Hopkins, there are billions of neurons (brain cells) in the brain, each with thousands of connections to other cells.

There’s still a lot we don’t know. Our progress in research is due to the important and tough scientific questions we set out to answer with our clinical trials.


We are looking to develop effective treatments for early-stage and advanced Alzheimer’s disease.


Depression is one of the most common mood disorders and affects people of all ages, races, and ethnicities. It’s important that we continue to seek better treatments for people living with mood disorders.


Though still classified as a mental illness, schizophrenia is actually a neurological disorder, like a stroke or Alzheimer’s. We focus our research on innovative treatments to help people with schizophrenia.

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.

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Resources for patients

For help understanding clinical trial listings and for other resources, visit our Patient Resources section.
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About clinical trials

Learn what clinical trials are, how they work, and if you may be eligible to participate.
Learn more about clinical trials