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Apex Innovative Sciences is a leading provider of clinical development and trial site services formed through the merger of CNS Research and Hassman Research Institute, trial site organizations based in Southern California and New Jersey, respectively. With a combined 164+ inpatient beds and outpatient facilities in five cities, our sites provide high-quality study conduct for a wide range of Phase I-IV trials. Apex prides itself on delivering scientific, technological, and clinical excellence with the expeditiousness required to provide optimal value to clients. Our expertise in program planning and protocol development helps sponsors reduce development costs and de-risk drug development.

Team Members

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Dr. Larry Ereshefsky

Chief Scientific Officer


Dr. Brett A. English

Vice President, Scientific Affairs and Clinical Development

Dr. Djouher Hough

Dr. Djouher Hough

Director of Addictions and Pain Management Research

Angela Terhune-Hargrove

Sr. Director, Business Development

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Annie Speno

Sr. Director, Business Development