175
Participants
Start Date
August 31, 2007
Primary Completion Date
December 31, 2011
Study Completion Date
June 30, 2012
10 mg Melatonin
Active Comparator: Drug: Melatonin 10 mg
20 mg Melatonin
Active Comparator: Drug: Melatonin 20 mg
Matched placebo
Matched placebo (identical formulation and delivery, without active ingredient)
Khon Kaen Hospital, Khon Kaen
Srinagarind Hospital, Khon Kaen
Srinagarind Hospital, Khon Kaen University
OTHER
Khon Kaen Hospital, Khon Kaen
UNKNOWN
General Drugs House Co.,LTD.
OTHER
Thailand Research Fund
OTHER
Khon Kaen University
OTHER