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Sponsored by: |
Takeda Global Research & Development Center, Inc. |
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Information provided by: | Takeda Global Research & Development Center, Inc. |
ClinicalTrials.gov Identifier: | NCT00593736 |
The purpose of this study is to evaluate the ability of ramelteon to advance the timing of sleep in individuals with delayed sleep phase syndrome.
Condition | Intervention | Phase |
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Sleep Disorders, Circadian Rhythm |
Drug: TAK-375 Drug: Placebo |
Phase II |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Double Blind (Subject, Investigator), Placebo Control, Parallel Assignment, Safety/Efficacy Study |
Official Title: | A Randomized, Double-Blind, Placebo-Controlled, Parallel, Proof of Concept Study to Evaluate the Effectiveness of Ramelteon to Advance the Timing of Sleep in Individuals With Delayed Sleep Phase Syndrome (DSPS) |
Enrollment: | 132 |
Study Start Date: | October 2007 |
Study Completion Date: | May 2008 |
Primary Completion Date: | May 2008 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1.: Experimental |
Drug: TAK-375
TAK-375 1 mg, tablets, orally, once daily for up to two weeks.
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2: Experimental |
Drug: TAK-375
TAK-375 4 mg, tablets, orally, once daily for up to two weeks.
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3: Experimental |
Drug: TAK-375
TAK-375 8 mg, tablets, orally, once daily for up to two weeks.
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4: Placebo Comparator |
Drug: Placebo
TAK-375 placebo-matching tablets, orally, once daily for up to two weeks.
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Delayed sleep phase syndrome is the most common circadian disorder in adolescents and most adults with the condition report onset of symptoms during childhood or adolescence. Delayed Sleep Phase Syndrome involves a chronic mismatch between the usual daily schedule required by the individual's environment and his or her circadian sleep wake pattern. Individuals suffering from delayed Sleep Phase Syndrome experience great difficulty when attempting to fall asleep before 1-2 am, if not later, as well as rising at acceptable hours of the morning despite having completely normal sleep architecture and sleep duration. Delayed Sleep Phase Syndrome is a sleep disorder that results from a dysregulation of the circadian sleep-wake rhythm. Delayed Sleep Phase Syndrome is often the cause of severe insomnia and is associated with excessive daytime sleepiness, major depressive disorder and severe disruption of education, work and social functioning. Its major symptom is extreme difficulty initiating sleep at a conventional hour and waking on time in the morning for school or work.
Ramelteon is a selective MT1 and MT2 receptor agonist. The purpose of this study is to evaluate the ability of ramelteon to advance the timing of sleep in individuals with delayed sleep phase syndrome. The effect of ramelteon will be analyzed based on collection of information from a post-sleep questionnaire completed by participants, and data collected by polysomnography in a sleep clinic setting. Total participation time involved in this study will be approximately 7 weeks.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
During single blind placebo run-in Polysomnography screening nights, subject is instructed to go to bed at their desired bed time and must demonstrate difficulty in falling asleep based on the following criteria:
Exclusion Criteria:
Is required to take or intends to continue taking any disallowed medication, any prescription medication, herbal treatment or over-the counter medication that may interfere with evaluation of the study medication, including:
Has any additional condition(s) that in the investigator's opinion would:
Study Director: | Medical Director Clinical Science | Takeda Global Research & Development Center, Inc. |
Responsible Party: | Takeda Global Research & Development Center, Inc. ( Sr VP, Clinical Science ) |
Study ID Numbers: | 01-04-TL-375-044 |
Study First Received: | January 2, 2008 |
Last Updated: | December 20, 2008 |
ClinicalTrials.gov Identifier: | NCT00593736 |
Health Authority: | United States: Food and Drug Administration |
Delayed sleep phase syndrome; drug therapy |
Signs and Symptoms Sleep Disorders, Circadian Rhythm Mental Disorders Neurologic Manifestations Disorders of Environmental Origin |
Dyssomnias Sleep Disorders Occupational Diseases Chronobiology Disorders |
Pathologic Processes Disease Syndrome Nervous System Diseases |