The safety and efficacy of COBENFY were assessed in 3, randomized, double-blind, placebo-controlled studies. EMERGENT-2 (N=252) and EMERGENT-3 (N=256) were phase 3 trials, and EMERGENT-1 (N=182) was a phase 2 trial. The primary end point was change in PANSS total score from baseline at Week 5.5,6 See additional study design details.
Efficacy across schizophrenia symptom domains1-4
COBENFY efficacy data across symptom domains1-4
PANSS Total Score1-5
Change from baseline in PANSS positive, negative, and general psychopathology symptoms
Pooled data from a post hoc analysis of 3 clinical trials6; end points were analyzed descriptively and are considered exploratory
General psychopathology subscale was not a prespecified end point in the EMERGENT clinical trials5
General psychopathology symptoms:
- Somatic concern
- Anxiety
- Feelings of guilt
- Tension
- Mannerism and posturing
- Depression
- Motor retardation
- Uncooperativeness
- Unusual thought content
- Disorientation
- Poor attention
- Lack of judgment and insight
- Disturbance of volition
- Poor impulse control
- Preoccupation
- Active social avoidance
Change from baseline in PANSS positive and negative symptoms in pivotal trials
Secondary end points: Change from baseline to Week 5 in PANSS positive and negative subscale scores1-4
In EMERGENT-3, the benefit of COBENFY on negative symptom subscale was not statistically significant vs placebo4
LS=least squares; PANSS=Positive and Negative Syndrome Scale; Wk=week.
View long-term efficacy data
References:
- Kaul I, Sawchak S, Correll CU, et al. Efficacy and safety of the muscarinic receptor agonist KarXT (xanomeline-trospium) in schizophrenia (EMERGENT-2) in the USA: results from a randomised, double-blind, placebo-controlled, flexible-dose phase 3 trial. Lancet. 2024;403(suppl 1):160-170.
- Kaul I, Sawchak S, Walling DP, et al. Efficacy and safety of xanomeline-trospium chloride in schizophrenia: a randomized clinical trial. JAMA Psychiatry. 2024;81(8):749-756.
- Brannan SK, Sawchak S, Miller AC, Lieberman JA, Paul SM, Breier A. Muscarinic cholinergic receptor agonist and peripheral antagonist for schizophrenia. N Engl J Med. 2021;384(8):717-726.
- Kaul I, Sawchak S, Walling DP, et al. Efficacy and safety of xanomeline-trospium chloride in schizophrenia: a randomized clinical trial. JAMA Psychiatry. 2024;81(8)(suppl):749-756.
- Data on file. Karuna Therapeutics, Inc., a Bristol Myers Squibb company; Boston, MA.
- Kaul I, Citrome L, Sawchak S, et al. Efficacy of KarXT (xanomeline–trospium) in schizophrenia: pooled results from the randomized, double-blind, placebo-controlled EMERGENT trials. Poster presented at: Neuroscience Education Institute Congress; November 9-12, 2023; Colorado Springs, CO.