title: Long-term trials of pregabalin and duloxetine for fibromyalgia symptoms: how study designs can affect placebo factors.
authors.affiliation: Department of Medicine, McKnight Brain Institute, University of Florida, College of Medicine, Gainesville, FL 32610, USA Department of Oral Surgery, McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA.
authors.forename: Roland
authors.initials: R
authors.lastname: Staud
authors.forename: Donald D
authors.initials: DD
authors.lastname: Price
mesh_terms: D018759:Adrenergic Uptake Inhibitors / Q000008:administration & dosage; D000700:Analgesics / Q000008:administration & dosage; D002985:Clinical Protocols; D002986:Clinical Trials as Topic / Q000379:methods*; D000068736:Duloxetine Hydrochloride; D005356:Fibromyalgia / Q000188:drug therapy*; D006801:Humans; D008137:Longitudinal Studies; D017063:Outcome Assessment, Health Care / Q000379:methods*; D015990:Placebo Effect; D000069583:Pregabalin; D013876:Thiophenes / Q000008:administration & dosage*; D016896:Treatment Outcome; D005680:gamma-Aminobutyric Acid / Q000008:administration & dosage / Q000031:analogs & derivatives*
chemical_list: D018759:Adrenergic Uptake Inhibitors; D000700:Analgesics; D013876:Thiophenes; D000069583:Pregabalin; D005680:gamma-Aminobutyric Acid; D000068736:Duloxetine Hydrochloride