KarXT for acute psychosis in Japanese adults with schizophrenia
Official title: A Phase 3, Randomized, Two-part Study With a 5-week Double-blind Part (Randomized, Parallelgroup, Placebo-controlled) Followed by a 52-week Open-label Extension Part to Evaluate the Efficacy and Safety of KarXT in Acutely Psychotic Japanese Adult Patients With Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition (DSM-5) Schizophrenia
Run by Bristol-Myers Squibb · NCT06882785 · Data updated 2026-11-12
This trial will test whether KarXT can reduce acute psychotic symptoms in Japanese adults with schizophrenia compared with placebo.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 250 (estimated) |
| Sponsor | Bristol-Myers Squibb Industry-sponsored |
| Locations | 56 sites (Kōnan, Aichi-ken and 55 other locations) |
| Status | Recruiting |
| Started | June 10, 2025 |
| Main results expected | September 23, 2028 |
| Study ends | August 23, 2029 |
| Registry record updated | November 2, 2026 |
| Trial ID | NCT06882785 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Japanese adults with confirmed DSM-5 schizophrenia who are currently acutely psychotic (PANSS 80–120 and CGI-S ≥4) and meet the study's medical eligibility criteria are ideal candidates.
✕Probably not a fit
People with other primary psychiatric disorders within the prior year, first-episode or newly diagnosed schizophrenia, significant medical comorbidities, or those outside the required PANSS/CGI-S ranges are unlikely to qualify or benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 3, interventional trial enrolls acutely psychotic Japanese adults with a DSM-5 diagnosis of schizophrenia and specified symptom severity. Participants are randomized to receive either KarXT or placebo and are monitored for changes in psychotic symptoms and safety outcomes. Eligibility requires PANSS total scores between 80 and 120 and a CGI-S score of ≥4, with other medical and psychiatric criteria applied. The study is conducted at multiple sites in Aichi prefecture, Japan.
Why it matters
Potential benefit: If successful, KarXT could offer a new antipsychotic option that reduces acute psychotic symptoms and may have a different side-effect profile from existing treatments.
How similar studies have gone: Earlier phase 2 studies of KarXT reported promising reductions in psychotic symptoms with a manageable tolerability profile, but larger phase 3 data are needed for confirmation.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria * Participants must have a primary diagnosis of schizophrenia established by a comprehensive psychiatric evaluation based on the Diagnostic and Statistical Manual of Mental Disorders⎯Fifth Edition (DSM-5) criteria and confirmed by Mini International Neuropsychiatric Interview (MINI). * Participants must have a PANSS total score between 80 and 120, inclusive. * Participants must have a CGI-S score of ≥ 4. Exclusion Criteria * Participants must not have any primary DSM-5 disorder other than schizophrenia within 12 months before screening. * Participants must not be newly diagnosed or experiencing their first treated episode of schizophrenia. * Participants must not have any history or presence of clinically significant medical conditions. * Other protocol-defined Inclusion/Exclusion criteria apply.
Where it's running
-
Hotei Hospital
Kōnan, Aichi-ken, Japan Recruiting -
Nagoya University Hospital
Nagoya, Aichi-ken, Japan Recruiting -
Okehazama Hospital
Toyoake, Aichi-ken, Japan Recruiting -
Fujita Health University
Toyoake, Aichi-ken, Japan Recruiting -
National Kohnodai Medical Center.
Ichikawa, Chiba, Japan Recruiting -
Shiranui Hospital
Omuta, Fukuoka, Japan Recruiting
Show 44 more locations
-
Takeda General Hospital - Aizuwakamatsu
Aizu-Wakamatsu, Fukushima, Japan Recruiting -
Holy Cross Hospital - Toki
Toki, Gifu, Japan Recruiting -
Kure Medical Center
Kure, Hiroshima, Japan Recruiting -
Goryokai Medical Corporation - Goryokai Hospital
Sapporo, Hokkaido, Japan Recruiting -
Hokkaido University Hospital
Sapporo, Hokkaido, Japan Recruiting -
Fujimidai Hospital
Hiratsuka, Kanagawa, Japan Recruiting -
Kitasato University Hospital
Sagamihara, Kanagawa, Japan Recruiting -
Tsurumi Nishii Hospital
Yokohama, Kanagawa, Japan Recruiting -
Yokohama City University Medical Center
Yokohama, Kanagawa, Japan Recruiting -
Hino Hospital - Yokohama
Yokohama, Kanagawa, Japan Recruiting -
Yuge Hospital
Kumamoto, Kumamoto, Japan Recruiting -
National Hospital Organization Maizuru Medical Center
Maizuru, Kyoto, Japan Recruiting -
Miyakonojo Shinsei Hospital
Miyakonojō, Miyazaki, Japan Recruiting -
University of the Ryukyus Hospital
Ginowan, Okinawa, Japan Recruiting -
Osaka Psychiatric Medical Center
Hirakata, Osaka, Japan Recruiting -
Kansai Medical University Medical Center
Moriguchi, Osaka, Japan Recruiting -
Nagaokai Medical Corporation - Neyagawa Sanatorium
Neyagawa, Osaka, Japan Recruiting -
Shin-Abuyama Hospital
Takatsuki, Osaka, Japan Recruiting -
Osaka Medical and Pharmaceutical University Hospital
Takatsuki, Osaka, Japan Recruiting -
Rainbow and Sea Hospital
Karatsu-shi, Saga-ken, Japan Recruiting -
Inuo Hospital
Tosu, Saga-ken, Japan Recruiting -
Saitama Konan Hospital
Kumagaya, Saitama, Japan Recruiting -
Dokkyo Medical University Hospital
Shimotsuga, Tochigi, Japan Recruiting -
Tochigi Prefectural Okamotodai Hospital
Utsunomiya, Tochigi, Japan Recruiting -
National Center of Neurology and Psychiatry
Kodaira, Tokyo, Japan Recruiting -
Asuka Hospital
Machida, Tokyo, Japan Recruiting -
Toho University Omori Medical Center
Ōta-ku, Tokyo, Japan Recruiting -
Tokyo Metropolitan Matsuzawa Hospital
Setagaya City, Tokyo, Japan Recruiting -
Narimasu Kosei Hospital
tabashi City, Tokyo, Japan Recruiting -
Yamaguchi University Hospital
Ube, Yamaguchi, Japan Recruiting -
National Hospital Organization Shimofusa Psychiatric Medical Center
Chiba, Japan Recruiting -
Kuramitsu Hospital
Fukuoka, Japan Recruiting -
University Hospital,Kyoto Prefectural University of Medicine
Kyoto, Japan Recruiting -
Miyazaki Prefectural Miyazaki Hospital
Miyazaki, Japan Recruiting -
Okayama University Hospital
Okayama, Japan Recruiting -
Asakayama Hospital
Osaka, Japan Recruiting -
Saitama Neuropsychitric Institute
Saitama, Japan Recruiting -
Tokushima University Hospital
Tokushima, Japan Recruiting -
Wakayama Medical University Hospital
Wakayama, Japan Recruiting -
Yamagata Sakuracho Hospital
Yamagata, Japan Recruiting -
Local Institution - 0032
Iizuka, Fukuoka, Japan Withdrawn -
Local Institution - 0037
Kitakyushu, Fukuoka, Japan Not yet recruiting -
Local Institution - 0025
Hadano-shi, Kanagawa, Japan Not yet recruiting -
Local Institution - 0019
Yatsushiro, Kumamoto, Japan Withdrawn
+6 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: BMS Clinical Trials Contact Center www.BMSClinicalTrials.com
- Email: Clinical.Trials@bms.com
- Phone: 855-907-3286
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Using Lumateperone to improve motivation in patients with schizophrenia and psychosis
This study is testing if Lumateperone can help people with schizophrenia or schizoaffective disorders feel more motivated and less apathetic.
-
Examining the effects of combined therapy for schizophrenia
This study is testing whether combining two therapies, one for managing thoughts and another for improving cognitive skills, can help people with schizophrenia do better in their daily lives compared to using just one of the therapies.
-
XEP527 in stable schizophrenia: safety and how it behaves in the body
This small, early-stage study tests the safety and how XEP527 behaves in people with stable schizophrenia who are on a single antipsychotic.
-
Theta-Burst Transcranial Magnetic Stimulation for Treatment-Resistant Auditory Hallucinations
This study tests whether theta-burst transcranial magnetic stimulation can lessen persistent auditory verbal hallucinations in adults with schizophrenia-spectrum or psychotic disorders who have not responded to antipsychotic meds.
-
Quality of life and safety in quetiapine use for schizophrenia or bipolar disorder
This study looks at how patients with schizophrenia or bipolar disorder feel and stay safe when treated with quetiapine alone or with other antipsychotics.
-
Neuronavigated rTMS for treatment-resistant auditory hallucinations
We are testing whether personalized neuronavigated inhibitory rTMS can reduce persistent auditory verbal hallucinations in adults who don’t respond to medication.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.