Engagement. Expertise. Results.

CenExel Centers of Excellence offer world-class quality and experience. ACMR champions that standard.

CenExel ACMR sets the standard for medical research, facilitating availability for safe and effective medicine to people everywhere.

CenExel ACMR is a fully dedicated 100,000 square foot, state-of-the-art research facility. We provide conscientious, recruitment-driven medical research services that are pivotal in the advancement and treatment of illnesses of the central nervous system and other therapeutic areas. Our dedicated and experienced research teams conduct clinical trials with compassion and respect for our research participants. We are a CenExel Center of Excellence, assuring unparalleled patient engagement, staff expertise, and valuable results.

Thousands of clinical trials conducted over nearly 40 years in medical research.
View Current Studies
Research Facility
CenExel ACMR encompasses 100,000 square feet of facility space, 150 beds, an on-site PBMC lab, and an on-site surgical suite.
CenExel ACMR has a proven record in recruiting, exceeding 100% of patient target.
Dr. Robert Riesenberg
Decades of industry experience lead CenExel ACMR and guide CenExel’s Psychiatric Advisory Board.
CenExel ACMR centralizes budgeting and contracting for faster study start-up.
group of people
CenExel ACMR serves a broad and diverse demographic in the surrounding area.

Center Leadership

Sarah Kazmi

Sarah Kazmi, MD

VP and General Manager
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Dr. Kazmi is bringing 15 years of extensive experience in Phase I-IV clinical trials spanning many therapeutic areas. She has a strong leadership background and a proven track record of managing large clinical research sites.

Dr. Robert Riesenberg

Robert Riesenberg, MD

CenExel ACMR Founder and Principal Investigator
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Dr. Riesenberg is a research psychiatrist with four decades of experience. His primary focus is on CNS, PK, Healthy Normal, and Child/Adolescent disorders. Dr. Riesenberg has been the Principal Investigator in over 600 studies.

Dr. Riesenberg earned a bachelor’s degree in both Zoology and Psychology from Memphis State University in 1972. In 1975, he earned his MD from the University of Tennessee. He is licensed to practice in Georgia.

2018 – 2020 Statistics

Therapeutic Areas

Clinical Trials

Patients Enrolled



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Reaching new heights in clinical research

Our Centers of Excellence provide unparalleled medical and scientific support in the design and execution of clinical trials. Our attention to detail assures quality, reliable results, and has helped CenExel to consistently achieve and exceed patient recruitment goals. We deliver the expertise, engagement, and results to ensure our clients achieve their clinical research goals.

To speed up study implementation, we provide centralized budgeting and contracting for sponsors engaging multiple Centers of Excellence. The geographic diversity of our network offers strong access to roughly 35 million subjects while our broad therapeutic expertise enables a variety of clinical trial strengths.

Top Therapeutic Areas of Expertise

Alzheimer’s Disease
Anxiety Disorder
Bipolar Disorder
Depressive Disorders
Parkinson’s Disease

Seasonal Influenza
Pandemic Influenza

Acute Post-op Pain:
Open Hernia Repair
Wisdom Tooth Extraction

Healthy Volunteer (all ages)
Sleep Apnea
Women’s Health

CenExel ACMR conducts Phase I (first-in-human) through Phase IV clinical trials in Psychiatry and Neurology and other medical indications.

CenExel ACT has been dedicated to assisting pharmaceutical companies find new cures to help patients better manage their healthcare for over two decades.

CIT has over 40 years of knowledge in conducting Phase I to Phase IV clinical studies in partnership with major pharmaceutical sponsors. Our well-trained teams provide accurate and timely results for every clinical trial conducted in areas such as neurology and psychiatry.

CenExel RCA has extensive experience with inpatient and outpatient clinical trials, ranging from pediatric to geriatric populations, with special emphasis on Phase I-III mental health and Central Nervous System (CNS) disorders, substance use disorders, and sleep studies.

Specializing in Central Nervous System (CNS) disorders for more than 26 years, CenExel CBH works with individuals with psychiatric illnesses in the greater DC-Baltimore metro area.

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