Patient Registry of Blind Subjects With Sleep-related Problems

N/ARecruitingNCT01195558

Vanda Pharmaceuticals10,000 enrolled

Overview

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.

Study Type

OBSERVATIONAL

Enrollment

10,000

Conditions

Sleep-wake Disorder in Blind Individuals

Interventions

Data collection on blindness and sleep problemsOTHER

Data related to degree of vision impairment and sleep problems is collected through a phone or web survey

Eligibility

Sex: ALL

Medical Language ↔ Plain English

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.

Outcomes

Primary Outcomes

Number of blind participants

Time frame: ongoing

Secondary Outcomes

Sleep/wake disruptions