Study	Reason for exclusion
Arnold 2012	Pooled analysis
Arnold 2015	Cross‐over: 3‐week escalation, 3‐week fixed dose, 2‐week taper/placebo washout period
Byon 2010	Summary
Emir 2010	Summary of 4 RCTs
NCT00760474	4‐week study only
NCT01268631	Cross‐over 2 x 2 weeks
NCT01904097	Single blind
Ohta 2013	Non‐randomised, open‐label extension trial
Ramzy 2016	Participants already taking pregabalin randomised to 1 of 3 antidepressants
Roth 2012	4‐week study on sleep maintenance in people with fibromyalgia
Russell 2009	Summary of 2 RCTs

RCT: randomised controlled trial