NCT01195558Recruiting

Patient Registry of Blind Subjects With Sleep-related Problems

Vanda Pharmaceuticals

Start Date

4/1/2010

Completion Date

4/1/2030

Summary

Non-24-hour sleep-wake disorder (Non-24) is a condition experienced primarily by totally blind individuals that results in abnormal night sleep patterns and chronic daytime sleepiness. This is a research protocol to develop a patient registry of subjects who may suffer from Non-24 and who are blind. Subjects participate in the study through a phone survey. This registry will be used to better understand, sleep related problems in blind individuals, including the investigation of a potential treatment, recruitment for future clinical studies, and to provide a forum for raising awareness about Non-24. The survey consists of questions regarding the degree of vision impairment and sleep problems that the subjects may be experiencing.

Eligibility Criteria

Age Range: No minimum to No maximum

Inclusion Criteria: 1. Subjects or legal guardians must be at least 18 years of age to participate in the telephone survey. Parents or legal guardians may represent children from 0 through 17 years who meet the following criteria. 2. Subjects must be blind. 3. Subjects must have some self-described problem with sleep or daytime sleepiness.

Interventions

OTHER

Data collection on blindness and sleep problems

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Conditions

Sleep-wake Disorder in Blind Individuals

Locations

Vanda Pharmaceuticals

Washington D.C., District of Columbia 20037

United States