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New drug aims to keep schizophrenia in check
NCT ID NCT07686263
First seen Jul 07, 2026 · Last updated Sep 15, 2026 · Updated 3 times
Summary
This phase 3 trial tests whether KarXT (a combination of xanomeline and trospium chloride) can prevent relapse in people with schizophrenia. Participants who have had a recent hospitalization for schizophrenia and still have symptoms will receive KarXT or a placebo. The study measures how long it takes for a relapse to occur and tracks side effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Xanomeline/Trospium Chloride (KarXT)
- What this could lead to
- If successful, this could provide a new treatment option to help people with schizophrenia maintain stability and avoid relapse.
- What could go wrong
- This is an early-phase trial, and results may not confirm effectiveness. Side effects related to cholinergic activity are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 472 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2026
- Expected to finish
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Mar 2029
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria * Participant must have a primary diagnosis of schizophrenia for at least 1 year established by a comprehensive psychiatric evaluation based on the DSM-5-TR (American Psychiatric Association 2022) criteria and confirmed by MINI for Psychotic Disorder Studies version 7.0.2 at screening. * Participant must have experienced hospitalization for schizophrenia within 1 year from the screening date. * Participant must be experiencing residual schizophrenia symptoms and have a PANSS total score ≥70 to ≤ 110 at screening and Day -1. * Participant much have a PANSS Score of ≥ 4 (moderate or greater) on ≥ 2 of the following Positive Scale (P) items at screening and Day -1: 1. Item 1 (P1; delusions) 2. Item 2 (P2; conceptual disorganization) 3. Item 3 (P3; hallucinatory behavior) 4. Item 6 (P6; suspiciousness/persecution) * Participant must have a CGI-S score of ≥ 4 at screening and Day -1 * Participant must have a BMI ≥ 18 and ≤ 40 kg/m2. Exclusion Criteria * Participant must not have any primary DSM-5 disorder other than schizophrenia within 12 months before screening * Participants must not have a newly diagnosed or are experiencing their first treated episode of psychosis or schizophrenia. * Participant must not have a risk of suicidal behavior as determined by the Investigator's clinical assessment and/or Columbia-suicide Severity Rating Scale (C-SSRS). * Participant must not have had psychiatric hospitalization(s) for more than 30 days (cumulative) within the 6 months before screening. * Participant must not have a history of treatment resistance to schizophrenia medications * Participant must not have decrease in PANSS total score (floor adjusted) between screening and Day -1 of more than 20%. * Other protocol-defined Inclusion/Exclusion criteria apply.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
55 sites in 9 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Atlanta Center for Medical Research
RECRUITINGAtlanta, Georgia, 30331, United States
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Local Institution - 0001
NOT_YET_RECRUITINGPoznan, 60-744, Poland
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Local Institution - 0002
NOT_YET_RECRUITINGCórdoba, 5000, Argentina
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Local Institution - 0014
NOT_YET_RECRUITINGKlecany, 25067, Czechia
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Local Institution - 0021
NOT_YET_RECRUITINGLittle Rock, Arkansas, 72211, United States
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Local Institution - 0030
NOT_YET_RECRUITINGPico Rivera, California, 90660, United States
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Local Institution - 0032
NOT_YET_RECRUITINGCulver City, California, 90230, United States
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Local Institution - 0037
NOT_YET_RECRUITINGGarden Grove, California, 92845, United States
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Local Institution - 0040
NOT_YET_RECRUITINGBellflower, California, 90706, United States
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Local Institution - 0044
NOT_YET_RECRUITINGWest Palm Beach, Florida, 33407, United States
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Local Institution - 0047
NOT_YET_RECRUITINGOklahoma City, Oklahoma, 73112, United States
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Local Institution - 0049
NOT_YET_RECRUITINGAustin, Texas, 78754, United States
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Local Institution - 0054
WITHDRAWNMiami Lakes, Florida, 33016, United States
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Local Institution - 0056
NOT_YET_RECRUITINGChicago, Illinois, 60641, United States
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Local Institution - 0067
NOT_YET_RECRUITINGChicago, Illinois, 60640-5017, United States
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Local Institution - 0068
NOT_YET_RECRUITINGLa Habra, California, 90631, United States
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Local Institution - 0070
NOT_YET_RECRUITINGSandy Springs, Georgia, 30328, United States
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Local Institution - 0075
WITHDRAWNMiami, Florida, 33135, United States
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Local Institution - 0094
NOT_YET_RECRUITINGCambridge, CB21 5EF, United Kingdom
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Local Institution - 0103
NOT_YET_RECRUITINGBucharest, Bucharest, 041914, Romania
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Local Institution - 0105
NOT_YET_RECRUITINGBucharest, Bucharest, 041914, Romania
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Local Institution - 0106
NOT_YET_RECRUITINGBucharest, 41914, Romania
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Local Institution - 0107
NOT_YET_RECRUITINGBucharest, Bucharest, 041914, Romania
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Local Institution - 0109
NOT_YET_RECRUITINGBucharest, 41914, Romania
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Local Institution - 0110
NOT_YET_RECRUITINGBucharest, Bucharest, 041914, Romania
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Local Institution - 0112
NOT_YET_RECRUITINGBarcelona, Barcelona [Barcelona], 08003, Spain
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Local Institution - 0122
NOT_YET_RECRUITINGBialystok, Podlaskie Voivodeship, 15-272, Poland
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Local Institution - 0123
NOT_YET_RECRUITINGWarsaw, Masovian Voivodeship, 02-957, Poland
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Local Institution - 0128
NOT_YET_RECRUITINGLemon Grove, California, 91945, United States
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Local Institution - 0134
WITHDRAWNMiami Springs, Florida, 33166, United States
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Local Institution - 0143
NOT_YET_RECRUITINGBuenos Aires, C1199ABB, Argentina
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Local Institution - 0144
NOT_YET_RECRUITINGSantiago del Estero, 4200, Argentina
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Local Institution - 0151
NOT_YET_RECRUITINGOrange, California, 92868, United States
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Local Institution - 0153
NOT_YET_RECRUITINGRogers, Arkansas, 72758, United States
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Local Institution - 0157
NOT_YET_RECRUITINGGlostrup, Region Sjælland, 2600, Denmark
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Local Institution - 0158
NOT_YET_RECRUITINGAalborg, 9000, Denmark
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Local Institution - 0159
NOT_YET_RECRUITINGAarhus, Central Jutland, 8200, Denmark
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Local Institution - 0162
NOT_YET_RECRUITINGBrno, 625 00, Czechia
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Local Institution - 0167
NOT_YET_RECRUITINGValladolid, 47012, Spain
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Local Institution - 0174
NOT_YET_RECRUITINGBucharest, 011241, Romania
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Local Institution - 0175
WITHDRAWNRío Cuarto, Córdoba Province, 5800, Argentina
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Local Institution - 0181
NOT_YET_RECRUITINGZamora, 49021, Spain
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Local Institution - 0182
NOT_YET_RECRUITINGHovedvejen 19, Frederiksberg, 2000, Denmark
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Local Institution - 0183
NOT_YET_RECRUITINGCincinnati, Ohio, 45219, United States
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Local Institution - 0185
NOT_YET_RECRUITINGRedlands, California, 92373, United States
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Local Institution - 0186
NOT_YET_RECRUITINGRiverside, California, 92506, United States
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Local Institution - 0187
NOT_YET_RECRUITINGMontclair, California, 91763, United States
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Local Institution - 0188
NOT_YET_RECRUITINGChino, California, 91710, United States
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Local Institution - 0189
NOT_YET_RECRUITINGSavannah, Georgia, 31405, United States
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Local Institution - 0190
NOT_YET_RECRUITINGAnaheim, California, 92805, United States
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Local Institution - 0191
NOT_YET_RECRUITINGNovi Iskar, 1282, Bulgaria
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Local Institution - 0192
NOT_YET_RECRUITINGGaithersburg, Maryland, 20877, United States
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Local Institution - 0193
NOT_YET_RECRUITINGTorrance, California, 90504, United States
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Local Institution - 0194
NOT_YET_RECRUITINGDallas, Texas, 75390, United States
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Local Institution - 0195
NOT_YET_RECRUITINGOakland Park, Florida, 33334, United States
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Pillar Clinical Research - Bentonville
RECRUITINGBentonville, Arkansas, 72712, United States
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Pillar Clinical Research - Richardson
RECRUITINGRichardson, Texas, 75080, United States
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Pillar Clinical Research- Little Rock
RECRUITINGLittle Rock, Arkansas, 72204, United States
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Research Centers of America ( Hollywood )
RECRUITINGHollywood, Florida, 33024, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New schizophrenia drug targets brain glutamate, not dopamine
- New drug candidate takes aim at schizophrenia symptoms
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- Five-Year safety check for experimental schizophrenia drug
- A shot every few weeks? new drug tested for schizophrenia