Schizophrenia Med Safe, Effective for Bipolar Mania: Phase 3 Data

Potential Second-Line Treatment

Commenting on the study, Richard Louis Price, MD, assistant professor of psychiatry, at Weill Cornell Medical College, New York City, said the findings suggest iloperidone may be “modestly effective” for patients with bipolar 1 mania or mixed episodes.

“It’s helpful to have new treatment options, especially for patients who have difficulty tolerating other agents,” said Dr. Price, who was not involved with the study.

Also commenting on the research, Roger S. McIntyre, MD, professor of psychiatry and pharmacology, University of Toronto, Toronto, Ontario, Canada, noted iloperidone’s “interesting antipsychotic pharmacodynamic,” highlighting the drug’s high-binding affinity for serotonin 5HT_2A and dopamine D₂ and D₃ receptors, as well as the noradrenergic α₁ receptors.

The drug’s profile “suggests benefit in manic features and agitation, perhaps with a lower propensity to EPS, which is especially important in persons at higher risk, like persons living with bipolar disorder,” Dr. McIntyre said.

Dr. McIntyre, who was not involved with the study, added iloperidone could be a second-line therapy because of its tolerability profile, provided the study results can be replicated.

“When considering alternatives with similar efficacy, absence of titration (or simple titration) minimal to no weight gain, no orthostatic hypotension, and no potential concerns with QT, those alternatives would have to be considered first-line, assuming that the study results are replicated,” he said.

This study was funded by Vanda Pharmaceuticals. The authors’ disclosures are listed in the original paper. Dr. McIntyre had received research grant support from CIHR/GACD/National Natural Science Foundation of China and the Milken Institute; speaker/consultation fees from Lundbeck, Janssen, Alkermes, Neumora Therapeutics, Boehringer Ingelheim, Sage, Biogen, Mitsubishi Tanabe, Purdue, Pfizer, Otsuka, Takeda, Neurocrine Biosciences, Sunovion, Bausch Health, Axsome Therapeutics, Novo Nordisk, Kris, Sanofi, Eisai, Intra-Cellular Therapies Inc., NewBridge Pharmaceuticals, Viatris, Abbvie, and Atai Life Sciences. McIntyre is the CEO of Braxia Scientific Corp. Dr. Price had received honoraria from AbbVie, Alkermes, Allergan, Intra-Cellular Therapies, Janssen, Jazz, Lundbeck, Neuronetics, Otsuka, and Supernus.

A version of this article appeared on Medscape.com.