Med Check: Zuranolone for Depression, Uzedy for Schizophrenia, and More

Adults with major depressive disorder may experience mood improvements within days of taking zuranolone (50 mg/day), a study published in May in The American Journal of Psychiatry (AJP) suggests. Zuranolone is an oral, once-daily neuroactive steroid that acts on GABA-A receptors.

The phase 3 trial included patients who were between the ages of 18 and 64 years, had received a diagnosis of major depressive disorder, had been experiencing symptoms of depression for a least four weeks, and had a Hamilton Depression Rating Scale (HAM-D) score of at least 24 at screening and before they started taking the assigned study medication.

The researchers randomized 534 participants to take either 14 days of treatment with zuranolone 50 mg/day or placebo in the evening. The researchers evaluated the participants 10 times over the course of the 42-day trial using such assessments as the HAM-D, the Columbia–Suicide Severity Rating Scale, the Clinical Global Impressions severity score, and more.

Compared with patients who took placebo, those who took zuranolone demonstrated a statistically significant improvement in depressive symptoms at day 15. “Numerically greater improvements in depressive symptoms for zuranolone versus placebo were observed by day 3 (least squares mean change from baseline HAM-D score, −9.8 vs. −6.8), which were sustained at all visits throughout the treatment and follow-up periods of the study,” the researchers wrote.

In April the U.S. Food and Drug Administration (FDA) approved Uzedy (risperidone extended-release injectable suspension) for the treatment of schizophrenia in adults, Teva and MedinCell announced. Uzedy is a long-acting subcutaneous antipsychotic that may be given in one- or two-month dosing intervals.

In the phase 3 RISE trial, 544 patients aged 13 to 65 years with schizophrenia were randomized to receive a subcutaneous injection of Uzedy (either once per month or once every two months) or placebo. Those who received Uzedy once per month or once every two months had a reduction of 80.0% and 62.5% in the risk to relapse compared with those who received placebo, respectively. Results were similar in the phase 3 SHINE trial, which examined the long-term safety of the drug for up to 56 weeks in 336 patients aged 13 to 65 years with schizophrenia.

A companion survey of participants in the SHINE trial found that 89% of patients and 92% of health professionals rated administration of Uzedy as easy when asked how easy or difficult it was to receive or administer the medication in its current form. Further, 70% of patients reported that Uzedy provided a better injection experience than their previous long-acting injectables (LAIs).

Abilify Asimtufii (aripiprazole extended release injectable suspension) has been approved by the FDA for the treatment of schizophrenia in adults and as a monotherapy treatment of bipolar I disorder in adults, Otsuka and Lundbeck announced in April. Abilify Asimtufii is a long-acting subcutaneous atypical antipsychotic that may be given every two months.

The approval was based on safety and efficacy data from trials of Abilify Maintena, which is for once monthly dosing, and on the results of a phase 1-2 study. In the phase 1-2 study, 266 adults with schizophrenia or bipolar I disorder were randomly assigned to receive either Abilify Asimtufii 960 mg every 56 days, for a total of four injections or Abilify Maintena 400 mg administered every 28 days for a total of eight injections. Treatment with Abilify Asimtufii resulted in similar aripiprazole plasma concentrations and efficacy to Abilify Maintena. ■