METHODS	Responders from the SB phase ( patients with improvements on the International Restless Legs Scale [ IRLS ] and investigator-rated Clinical Global Impression-Improvement scale at week 24 and stable while taking a gabapentin enacarbil dose of 1200 mg for at least 1 month before randomization ) were randomized to gabapentin enacarbil , 1200 mg , or placebo once daily at 5 pm with food .\