Methods	Randomised, double blind, parallel group, partial enriched enrolment. 1-week titration for 600 mg dose (13 weeks in total)
Participants	Fibromyalgia according to ACR classification and pain of at least 40/100 mm in week before randomisation. Mean age 49 years, 94% female, 91% white
Interventions	Pregabalin 300 mg daily, n = 185 Pregabalin 450 mg daily, n = 183 Pregabalin 600 mg daily, n = 190 Placebo daily, n = 190
Outcomes	Proportion of patients with ≥ 50% decrease in mean pain score between endpoint and baseline, and other outcomes
Notes	Oxford quality score: R1, D1, W1 = 3/5 Pfizer sponsored
Risk of bias
Item	Authors’ judgement	Description
Adequate sequence generation?	Unclear	Stated to be randomised
Allocation concealment?	Unclear	Not described
Blinding? All outcomes	Unclear	Stated to be double blind