A Phase 4, Randomized, Double-Blind, Placebo and Active-Controlled, Single-Dose, Four-Way Crossover Study Evaluating the Abuse Potential of Two Doses of Gabapentin Taken Orally in Healthy, Non-Drug-Dependent Participants With Sedative Drug Use Experience

The study includes Screening, a Qualification Phase consisting of a Naloxone Challenge and Drug Discrimination crossover study, a Treatment Phase and Follow-up. Following successful completion of the Qualification Phase the participants will be enrolled in the Treatment phase. The Treatment Phase is a randomized, double-blind, placebo- and active-controlled, 4 period crossover, single-dose, Williams square design study in healthy male and female adult, non-dependent, recreational sedative users. On Day 1 of each of the Treatment Phase 4 periods, which will be separated by a washout of at least…