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We are now…. CenExel

On June 16, 2022, Apex Innovative Sciences, parent company of Hassman Research Institute (HRI) and Collaborative Neuroscience Research (CNS), was acquired by CenExel Clinical Research.

CenExel now comprises 19 of the most proficient, therapeutically-focused, wholly-owned clinical research sites in the country, with special emphases on Psychiatry, Neurology, Pain, Human Abuse Liability, Vaccines/Immunology, Dermatology, Ethnic Bridging, Sleep, and Clinical Pharmacology/Phase I. On a combined basis, CenExel’s clinical research units have more than 500 inpatient beds with the ability to perform both simple and highly complex early phase trials. Each of the CenExel Centers of Excellence units has an outstanding track record of assisting pharmaceutical sponsors with protocol development, study design, and conduct in Phase I-IV trials to develop new therapeutics for improved patient care.

For more information, please visit www.cenexel.com

About Us

Founded in 2000, CNS has grown to become one of the largest clinical research providers in the country, and the largest in Southern California. CNS operates three outpatient clinics located in Southern California (Garden Grove, Long Beach and Torrance). Additionally, CNS’s Long Beach facility offers a dedicated Phase I Unit.

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About our studies

CNS, in partnerships with major pharmaceutical sponsors, conducts clinical trials for new medications and treatments in various therapeutic areas including neurology, psychiatry and general health conditions. The mission of CNS is to advance medical knowledge through seamless execution of complex clinical trials utilizing our extensive experience, knowledge and capabilities.

Open Studies

Participate in the Search for a Cure Today.

CNS is one of the foremost experts in psychiatric and neurological health with a diverse group of studies open for enrollment. With the help of participants like you, we are able to advance medical knowledge and get new treatments and medications available to the public! Additional benefits for volunteers include compensation for time, medical procedures and tests at no cost, and more. To see if you qualify contact CNS today.

About Clinical Trials

CNS, in partnerships with major pharmaceutical sponsors, conducts clinical trials for new medications and treatments in various therapeutic areas including neurology, psychiatry and general health conditions.

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Open Studies

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News & Events

Sign up to participate in a clinical trial today!

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Therapeutic Areas

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About CenExel
Innovative Sciences

CenExel Centers of Excellence provide unparalleled medical and scientific support in the design and execution of clinical trials. Our attention to detail assures quality results that you can trust. We consistently achieve and exceed our patient recruitment goals. All of our Centers of Excellence have highly experienced Principal Investigator physicians and research staff.

Study Participants
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