Blind Child Melatonin Treatment Study
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Purpose
The primary focus of this five-year study will be to optimize the melatonin dosing regimen for synchronizing the body clocks of blind children to the 24-hour day.
| Condition | Intervention |
|---|---|
|
Blindness |
Dietary Supplement: Melatonin |
| Study Type: | Interventional |
| Study Design: | Allocation: Non-Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Single Blind (Subject) Primary Purpose: Treatment |
| Official Title: | Melatonin Studies of Blind Children |
- circadian phase marker, as measured by the melatonin levels in serial salivary and/or plasma samples. [ Time Frame: biweekly throughout the entire study ] [ Designated as safety issue: No ]
- Durability and Toxicity Side Effects Questionnaire [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]
| Estimated Enrollment: | 26 |
| Study Start Date: | September 2002 |
| Estimated Study Completion Date: | June 2012 |
| Estimated Primary Completion Date: | June 2012 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: 1
Subjects will be given up to 0.5 mg daily. If the treatment works, the dose will be reduced gradually until the lowest, effective dose is identified. If the treatment is unsuccessful, the subject will be taken off treatment and later enrolled in a different treatment plan.
|
Dietary Supplement: Melatonin
Subjects will be given up to 0.5 mg daily. 0.005-20 mg, daily, up to 5 years (the exact duration depends on each subjects response to the dose and the specifics of their circadian rhythm patterns). |
|
Experimental: 2
Subjects will be given up to 10 mg daily. If the treatment works, the dose will be reduced gradually until the lowest, effective dose is identified. If the treatment is unsuccessful, the subject will be taken off treatment and later enrolled in a different treatment plan.
|
Dietary Supplement: Melatonin
Subjects will be given up to 10 mg daily. 0.005-20 mg, daily, up to 5 years (the exact duration depends on each subjects response to the dose and the specifics of their circadian rhythm patterns). |
|
Experimental: 3
Subjects will be given up to 20 mg daily. If the treatment works, the dose will be reduced gradually until the lowest, effective dose is identified. If the treatment is unsuccessful, the subject will be taken off treatment and later enrolled in a different treatment plan.
|
Dietary Supplement: Melatonin
Subjects will be given up to 20 mg daily. 0.005-20 mg, daily, up to 5 years (the exact duration depends on each subjects response to the dose and the specifics of their circadian rhythm patterns). |
Detailed Description:
We intend to study as many as 26 blind children through up to three melatonin treatment regimens, all of which involve a dose step-down in which the melatonin dose will be reduced gradually to find the lowest effective dose. The 3 treatment plans differ only in the start dose. Successfully treated subjects (of one treatment plan) will enter a one-year intensive assessment of the safety and efficacy of melatonin treatment in which the subject will take the same dose for one year and complete biweekly assessments of efficacy and side-effects. The final phase of the study involves a placebo discontinuation, in which the subject's circadian rhythm will be returned to the baseline rhythm (this may take up to 6 months for some subjects).
Eligibility| Ages Eligible for Study: | 5 Years to 20 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Children and adults 5 to 20 years old
- Blindness for at least one year, verified by an ophthalmologic exam
- Ability to comply with the requirements of the experimental protocol
- And no clinically significant abnormalities (other than blindness) on a general physical examination.
- Subjects must be competent to sign informed consent if age 18 or older. Parents and subjects will be interviewed together and, when appropriate (for example, subject is age 18 or older), separately as well.
Exclusion Criteria:
- Abnormal heart, liver or kidney function; intractable seizure disorders
- Significant laboratory abnormalities on CBC, Comprehensive Metabolic set, or UA (dip stick method)
- Pregnancy; sexual activity in post-pubertal females not using a recognized and valid contraceptive method
- A current Axis I psychiatric or substance abuse disorder according to the DSM-IV Manual ; OR
- External demands that limit the ability to maintain a regular schedule, e.g. night shift work.
Contacts and Locations| Contact: Amber Laurie | 1-866-424-6060 | sleeplab@ohsu.edu |
| Contact: Alfred J Lewy, MD, PhD | 503-494-7746 | lewy@ohsu.edu |
| United States, Oregon | |
| Sleep and Mood Disorders Lab, Oregon Health & Science University | Recruiting |
| Portland, Oregon, United States, 97239 | |
| Contact: Amber Laurie, B.A. 866-424-6060 sleeplab@ohsu.edu | |
| Principal Investigator: Alfred J Lewy, MD, PhD | |
| Sub-Investigator: Jonathan S Emens, MD | |
| Principal Investigator: | Alfred J Lewy, MD, PhD | Oregon Health and Science University |
More Information
Additional Information:
Publications:
| Responsible Party: | Alfred J. Lewy, MD, PhD / Senior Vice Chairman, Department of Psychiatry, Oregon Health & Science University |
| ClinicalTrials.gov Identifier: | NCT00691444 History of Changes |
| Other Study ID Numbers: | eIRB 1251, R01 HD42125 |
| Study First Received: | June 3, 2008 |
| Last Updated: | July 7, 2011 |
| Health Authority: | United States: Food and Drug Administration |
Keywords provided by Oregon Health and Science University:
|
melatonin circadian rhythms sleep |
Additional relevant MeSH terms:
|
Blindness Vision Disorders Sensation Disorders Neurologic Manifestations Nervous System Diseases Eye Diseases Signs and Symptoms Melatonin |
Central Nervous System Depressants Physiological Effects of Drugs Pharmacologic Actions Central Nervous System Agents Therapeutic Uses Antioxidants Molecular Mechanisms of Pharmacological Action Protective Agents |
ClinicalTrials.gov processed this record on May 19, 2013