


Participating in our clinical trials allows you to contribute to important research shaping the future of opioid use disorder care.
If you can refrain from using any BUP medications during the trial period, you may qualify for compensation of up to $5,000.
Our team is dedicated to supporting participants throughout the process, ensuring a positive and informed experience as you engage in cutting-edge research.
Apex Medical Research gave me the tools and encouragement I needed to overcome opioid use disorder and reclaim my life. I’ll forever be grateful for their compassion and care.
Participant, Opioid Use Disorder Study
The research team at Apex not only helped me find a treatment that eased my opioid cravings but made me feel like I wasn’t alone in my struggle. They truly care about their patients.
Volunteer, Health Research Advocacy
Apex Medical Research was a turning point in my fight against opioid use disorder. Their innovative treatments and supportive team gave me hope when I felt there was none. Today, I’m living proof that recovery is possible.
Clinical Trial Participant
Opioid use disorder requires innovative approaches to address its challenges effectively.
Clinical research is at the forefront of driving progress and finding new solutions.
Apex Medical Research is dedicated to advancing understanding through cutting-edge clinical trials.
By participating in our studies, you actively contribute to shaping the future of care.
Your involvement supports meaningful advancements that impact the field of opioid use disorder.


Dr. Dennis J. Levinson is a Clinical Associate Professor of Medicine at the University of Illinois, Chicago. He received his undergraduate education at the University of Illinois and attended the Rosalind Franklin University (formerly Chicago Medical School). After completing his residency at Michael Reese Hospital and serving in the military, he finished his fellowship in rheumatology at the University of Chicago.
Dr. Levinson has been practicing rheumatology for 40 years. He is board certified in Internal Medicine and Rheumatology, and a Founding Fellow of the American College of Rheumatology. He is a past president of the Chicago Rheumatism Society and served as Chief of Service and Program Director of Internal Medicine at Michael Reese Hospital in Chicago from 1999 to 2008. He currently sits on the board of the Michael Reese Research and Education Foundation, which focuses on funding scholarships, community healthcare, and research.
Dr. Levinson has contributed to the medical literature with over 74 articles, abstracts and book chapters and continues to participate in clinical research. He was also involved in the first stem cell transplant for sickle cell disease in the Chicago area. In 2016, he received the Hispanocare Outstanding Community Award for scholarship support in the Latino community.




OUD is a disorder characterized by the abuse of opioids, resulting in urges and symptoms of withdrawal. Apex offers cutting-edge therapies, medication-assisted treatment (MAT), and comprehensive support to control symptoms and support long-term recovery.
Apex provides complimentary access to new treatments, MAT, tailored counseling, and community programs. Our team collaborates with you to develop a personalized recovery strategy.
Clinical trials are utilized to experiment with novel treatments for OUD. By participating, you get early admission to new treatments and also help influence future healthcare through research.

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