PMID- 36463237 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221206 IS - 2754-6993 (Electronic) IS - 2754-6993 (Linking) VI - 8 IP - 1 DP - 2022 Dec 3 TI - Safety and tolerability of KarXT (xanomeline-trospium) in a phase 2, randomized, double-blind, placebo-controlled study in patients with schizophrenia. PG - 109 LID - 10.1038/s41537-022-00320-1 [doi] LID - 109 AB - KarXT combines xanomeline, an M(1)/M(4) preferring muscarinic agonist with no direct D(2) receptor antagonism, with the peripherally restricted anticholinergic trospium. In EMERGENT-1 (NCT03697252), a 5-week, randomized, double-blind, placebo-controlled, phase 2 study in inpatients with schizophrenia, KarXT met the primary efficacy endpoint, numerous secondary endpoints, and was generally well tolerated. Here, we conducted additional post hoc analyses of safety and tolerability data of KarXT from EMERGENT-1 with a particular focus on adverse events (AEs) that may be associated with muscarinic receptor agonism (nausea or vomiting) or antagonism (dry mouth or constipation). A total of 179 patients received at least one dose of either KarXT (n = 89) or placebo (n = 90) and were included in the analyses. KarXT was associated with a low overall AE burden. The majority of procholinergic and anticholinergic AEs with KarXT were mild, occurred in the first 1-2 weeks of treatment, and were transient with a median duration ranging from 1 day for vomiting to 13 days for dry mouth. No patients in either treatment group discontinued the study due to any procholinergic or anticholinergic AEs. Incidence of somnolence/sedation AEs with KarXT were low and similar to those in the placebo group. KarXT was associated with no significant or clinically relevant changes in body weight, metabolic parameters, or vital signs. KarXT was generally well tolerated with an AE profile consistent with the activity of xanomeline-trospium at muscarinic receptors. CI - (c) 2022. The Author(s). FAU - Correll, Christoph U AU - Correll CU AD - Department of Psychiatry Research, The Zucker Hillside Hospital, Glen Oaks, NY, USA. CCorrell@northwell.edu. AD - Department of Psychiatry and Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA. CCorrell@northwell.edu. AD - Department of Child and Adolescent Psychiatry, Charite Universitatsmedizin Berlin, Berlin, Germany. CCorrell@northwell.edu. FAU - Angelov, Angel S AU - Angelov AS AD - Karuna Therapeutics, Boston, MA, USA. FAU - Miller, Andrew C AU - Miller AC AD - Karuna Therapeutics, Boston, MA, USA. FAU - Weiden, Peter J AU - Weiden PJ AUID- ORCID: 0000-0001-5583-5871 AD - Karuna Therapeutics, Boston, MA, USA. FAU - Brannan, Stephen K AU - Brannan SK AD - Karuna Therapeutics, Boston, MA, USA. LA - eng PT - Journal Article DEP - 20221203 PL - Germany TA - Schizophrenia (Heidelb) JT - Schizophrenia (Heidelberg, Germany) JID - 9918367987006676 PMC - PMC9719488 COIS- The sponsor was involved in the design and conduct of the study; collection, analysis, and interpretation of data; preparation, review, and approval of the manuscript; and the decision to submit the manuscript for publication. Dr. Correll has been a consultant and/or advisor to or has received honoraria from AbbVie, Acadia, Alkermes, Allergan, Angelini, Aristo, Boehringer-Ingelheim, Cardio Diagnostics, Cerevel, CNX Therapeutics, Compass Pathways, Darnitsa, Gedeon Richter, Hikma, Holmusk, IntraCellular Therapies, Janssen/Johnson & Johnson, Karuna Therapeutics, LB Pharma, Lundbeck, MedAvante-ProPhase, MedinCell, Merck, Mindpax, Mitsubishi Tanabe Pharma, Mylan, Neurocrine, Newron, Noven, Otsuka, Pharmabrain, PPD Biotech, Recordati, Relmada, Reviva, Rovi, Seqirus, SK Life Science, Sunovion, Sun Pharma, Supernus, Takeda, Teva, and Viatris; provided expert testimony for Janssen and Otsuka; served on a Data Safety Monitoring Board for Lundbeck, Relmada, Reviva, Rovi, Supernus, and Teva; has received grant support from Janssen and Takeda; received royalties from UpToDate; and is a stock option holder of Cardio Diagnostics, Mindpax, and LB Pharma. Drs. Angelov, Miller, Weiden, and Brannan are employees of and hold equity in Karuna Therapeutics. EDAT- 2022/12/04 06:00 MHDA- 2022/12/04 06:01 PMCR- 2022/12/03 CRDT- 2022/12/03 23:26 PHST- 2022/09/08 00:00 [received] PHST- 2022/11/21 00:00 [accepted] PHST- 2022/12/03 23:26 [entrez] PHST- 2022/12/04 06:00 [pubmed] PHST- 2022/12/04 06:01 [medline] PHST- 2022/12/03 00:00 [pmc-release] AID - 10.1038/s41537-022-00320-1 [pii] AID - 320 [pii] AID - 10.1038/s41537-022-00320-1 [doi] PST - epublish SO - Schizophrenia (Heidelb). 2022 Dec 3;8(1):109. doi: 10.1038/s41537-022-00320-1.