Intravenous abuse potential study of oxycodone alone or in combination with naltrexone in nondependent recreational opioid users
2016
ABSTRACTBackground: ALO-02, comprising pellets of extended-release oxycodone surrounding sequestered naltrexone, is intended to deter abuse. Objective: Determine the abuse potential of intravenous oxycodone combined with naltrexone, which represents simulated crushed ALO-02 in solution, compared with intravenous oxycodone in nondependent, recreational opioid users. Methods: A randomized, double-blind, placebo-controlled, three-way crossover study with naloxone challenge, drug discrimination, and treatment phases. Intravenous treatments included oxycodone hydrochloride 20 mg, oxycodone hydrochloride 20 mg plus naltrexone hydrochloride 2.4 mg (simulated crushed ALO-02 20 mg/2.4 mg), or placebo (0.9% sodium chloride for injection). Primary end points were peak effects (Emax) and area under the effects curve within 2 h postdose (AUE0-2h) on drug liking and high visual analog scales. Results: Thirty-three participants were randomized into treatment phase, and 29 completed all treatments. Study validity was con...
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