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ERG’s mission is to provide the highest quality clinical trial execution across all clinical research phases to help sponsors.
ERG also works with clients who are assessing sleep disturbance as a secondary outcome measure in psychiatric and neurological disorders. Examples include sleep disturbance in schizophrenia, wakefulness in patients with mild to moderate Alzheimer’s disease, and insomnia related to major depressive disorder. ERG is uniquely positioned to conduct these complex inpatient trials given the flexibility of the facilities and the extensive training of both the technicians and the clinical/medical teams.

ERG sites with PSG equipment
and sleep centers
affiliate sleep centers
sleep disorder studies
ERG’s industry-leading experts have decades of clinical trial experience and membership in the American Academy of Sleep Medicine. Our principal investigators lead teams of skilled clinical research coordinators and full-time sleep technicians.


ERG has strategically selected sites in which to conduct polysomnographic (PSG) sleep studies, giving careful consideration to unit design and equipment purchases in order to meet the needs of these specialized trials. Our dedicated sleep labs are equipped with digital and paper PSG capabilities with high-precision monitoring instruments and wireless amplifiers for maximum patient comfort; Multiple Sleep Latency Tests (MSLT), Maintenance of Wakefulness Tests (MWT), electroencephalograms (EEG), electromyographs (EMG), digital, 32-channel oximeters; SEDT (secure electronic data transfer); and a lab draw station complete with a centrifuge and a refrigerator for sample storage.
Our well-established, centralized recruitment team—part of the ERG infrastructure—works with on-site recruitment specialists to develop a plan to target the optimal patient population for a specific study. Each ERG site has a robust database of volunteers reporting some form of sleep disorder. Mining that database, augmented with community outreach and physician referral programs, our specialists focus on the appropriate demographics to yield the greatest rate of return.
ERG’s mission is to provide the highest quality clinical trial execution across all clinical research phases to help sponsors.