Development of a Patient Registry of Blind Subjects With Sleep-related Problems
Vanda Pharmaceuticals
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
- Age range
- Not specified
- Sex
- All
- Healthy volunteers
- No
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
- OtherData collection on blindness and sleep problems
Data related to degree of vision impairment and sleep problems is collected through a phone or web survey
Location
- Vanda PharmaceuticalsWashington D.C., District of Columbia