FDA Approves Pfizer’s Abuse Deterrent Pain Drug
FDA has approved a Pfizer NDA for Troxyca ER (oxycodone hydrochloride and naltrexone hydrochloride) extended-release capsules, indicated for treating pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate. The approval covers the drug’s properties that are expected to reduce abuse when crushed and administered by the oral and intranasal routes. “However, abuse of Troxyca ER by these routes is still possible,” the company says.
The capsules contain pellets that consist of oxycodone hydrochloride, an opioid agonist, which surround sequestered naltrexone hydrochloride, an opioid antagonist. “When taken as directed, the naltrexone is intended to remain sequestered and patients receive oxycodone in an extended-release manner,” Pfizer says. “Studies demonstrated that when the pellets are crushed the sequestered naltrexone is released and is available to counteract the effects of oxycodone.”