FDA Approves Drug for Managing Opioid Withdrawal
FDA has approved a U.S. WorldMeds NDA for Lucemyra (lofexidine hydrochloride) for mitigating withdrawal symptoms in adults who have abruptly discontinued opioid use. FDA says that this is the first non-opioid treatment for managing opioid withdrawal symptoms, but it may only lessen the severity and is only approved for treatment for up to 14 days. “Lucemyra is not a treatment for opioid use disorder (OUD), but can be used as part of a broader, long-term treatment plan for managing OUD,” an FDA release says.
Lucemyra is an oral, selective alpha 2-adrenergic receptor agonist that reduces the release of norepinephrine, the agency says. “The actions of norepinephrine in the autonomic nervous system are believed to play a role in many of the symptoms of opioid withdrawal,” it adds. “The safety and efficacy of Lucemyra was supported by two randomized, double-blind, placebo-controlled clinical trials of 866 adults meeting Diagnostic and Statistical Manual-IV criteria for opioid dependence who were physically dependent on opioids and undergoing abrupt opioid discontinuation.”
The agency also says it is requiring 15 postmarketing studies, including both animal and human studies. Additional animal safety studies will be required to support longer-term use and use in children.