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Sponsored by: |
University Hospital, Basel, Switzerland |
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Information provided by: | University Hospital, Basel, Switzerland |
ClinicalTrials.gov Identifier: | NCT00675181 |
Does melatonin affect basal metabolic rate, increase choroidal blood flow and reduce the vasospastic syndrome (VS)?
The main questions are:
Do women with VS exhibit...
Condition | Intervention |
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Vasospastic Syndrome Healthy Subjects |
Drug: Melatonin Drug: Placebo |
Study Type: | Interventional |
Study Design: | Basic Science, Randomized, Double Blind (Subject, Caregiver, Investigator), Placebo Control, Crossover Assignment |
Official Title: | Effects of Melatonin on Oxygen Consumption and Choroidal Blood Flow in Women With Vasospastic Syndrome in Comparison to Controls |
Estimated Enrollment: | 20 |
Study Start Date: | April 2008 |
Estimated Study Completion Date: | October 2010 |
Estimated Primary Completion Date: | April 2010 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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A, 1: Active Comparator
A, 1 = Melatonin
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Drug: Melatonin
5mg per os
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A, 2: Placebo Comparator
A,2 = Placebo
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Drug: Placebo
per os
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Study description:
Melatonin, a natural hormone of the pineal gland exclusively released during the dark phase, exhibits vasodilatatory effects in distal skin regions and reduces core body temperature. This study investigates whether exogenous melatonin (5mg p.o. at 2p.m.) in the afternoon, when no endogenous melatonin is secreted, increases not only distal skin blood flow, but also choroidal blood flow and changes oxygen consumption. Two subject groups were studied, women with vasospastic syndrome (VS) and controls. The main hypothesis is: melatonin normalizes distal vasoconstriction in VS.
Further questions will also be answered:
Does melatonin affect basal metabolic rate, increase choroidal blood flow and reduce the vasospastic syndrome (VS)?
Do women with VS exhibit:
Ages Eligible for Study: | 20 Years to 30 Years |
Genders Eligible for Study: | Female |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Exclusion Criteria:
Contact: Kurt Kraeuchi | 41-61-325-5508 | kurt.kraeuchi@upkbs.ch |
Switzerland | |
University Eye Clinic | Recruiting |
Basel, Switzerland, 4031 | |
Contact: Kurt Kraeuchi 41-61-325-5508 kurt.kraeuchi@upkbs.ch |
Study Director: | Selim Orguel, MD | University Eye Clinic, Basel, Switzerland |
Responsible Party: | University Hospital, Basel, Switzerland ( Selim Orguel, MD ) |
Study ID Numbers: | 087-KRK-2008-002 |
Study First Received: | May 6, 2008 |
Last Updated: | May 7, 2008 |
ClinicalTrials.gov Identifier: | NCT00675181 |
Health Authority: | Switzerland: Swissmedic |
melatonin skin blood flow choroidal blood flow vasospastic subjects normal subjects |
Melatonin Healthy |
Antioxidants Pathologic Processes Disease Molecular Mechanisms of Pharmacological Action Therapeutic Uses Syndrome |
Physiological Effects of Drugs Central Nervous System Depressants Protective Agents Central Nervous System Agents Pharmacologic Actions |