48
Participants
Start Date
August 31, 2013
Primary Completion Date
March 31, 2014
Study Completion Date
March 31, 2014
Methylphenidate 20 mg tablet given once by mouth
3-arm, single-drug dosage comparison study
modafinil 200mg tablet given once by mouth
3-arm, single-drug dosage comparison study
caffein 200mg tablet given once by mouth
3-arm, single-drug dosage comparison study
placebo
Department of Psychiatry and Psychotherapy, Charité - University, Berlin
The Volkswagen Foundation
OTHER
Charite University, Berlin, Germany
OTHER