












FREE screenings for Nonalcoholic Fatty Liver Disease in San Antonio, TX
Clay Dehn, vice president of clinical pharmacology services at Endeavor Clinical Trials, explains how Nonalcoholic Fatty Liver Disease (NAFLD) is prevalent in the Hispanic community and provides insight on how to get a free screening.
Watch video / read article on KSAT.com »
Unite Against COVID-19
COVID-19 Vaccine Study
If you qualify you may:
- See a physician or medical staff at no cost
- Receive compensation for time and travel


Welcome to Evolution Research Group!
Together we are one of the largest research organizations in the nation focusing on the conduct of clinical trials for healthy individuals and those suffering from psychiatric disorders, pain, Alzheimer’s, hepatic, renal and other debilitating diseases. Our research subjects make medical discoveries and scientific developments possible and we are here to support you.
Choosing to participate in a clinical research trial is a personal decision. Our research specialists are here to answer your questions and to help you along the way. Contact us today to see how you can be a part of identifying breakthrough treatments.
Studies We Conduct at Evolution Research Group
- Addiction
- ADHD
- Alzheimer’s Disease
- Anxiety
- Binge Eating
- Bipolar Disorder
- Chronic Back Pain
- Chronic Migraine
- Depression
- Diabetes
- Essential Tremor
- Fibromyalgia
- Human Abuse Liability
- Healthy Volunteers
- Hepatic Impairment
- Insomnia
- Major Depressive Disorder
- Memory Loss
- NASH
- Obesity
- Opioid Addiction
- Pain
- Renal Impairment
- Schizophrenia
- Senior Healthy Volunteers
- Smoking Cessation
- Tardive Dyskinesia
Clinical Research Education & Blog

Why Bunions are So Painful
Discomfort is a feeling never far from individuals with bunions. From foot structure to how we walk, multiple factors occur in the years leading up to developing a bunion. By learning how they are formed, we can understand why bunions are so painful. A Disturbance in the Force There’s a start to everything, and with

Managing Depression During the Holidays
The holidays are typically seen as a time of happiness and celebration. However, most individuals can attest to the stress associated with this time of year, both emotionally and financially. The holiday blues can get the best of anyone. It can be particularly difficult for those already dealing with a history of depression and other

Why Bipolar Relapse is Higher During the Holidays
The holidays are tricky for everyone. For those with bipolar disorder, mood instability is a unique challenge over and above what the average person faces. Here are some reasons why bipolar relapse is higher during the holidays for those with bipolar disorder. More than the Holiday Madness A bipolar disorder relapse is defined as the