Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT04820309 · ClinicalTrials.gov registry record · Phase 3
An Open-label Study to Assess the Long-term Safety, Tolerability, and Efficacy of KarXT in Adult Patients With Schizophrenia (EMERGENT-5)
A Phase 3 study of Schizophrenia, sponsored by Karuna Therapeutics.
- Completed
- Registry status
- Phase 3
- Development phase
- 566
- Enrollment target
- 20
- Study locations
NCT04820309: Completed Phase 3 study of Schizophrenia, sponsored by Karuna Therapeutics.
NCT04820309 is a Phase 3 study of Schizophrenia that has completed, run by Karuna Therapeutics. The registered enrollment target is 566 participants, above the 217-participant average among 315 other Schizophrenia trials with a reported enrollment target (161% higher). The trial reports 20 study locations across 2 states. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04820309, a Phase 3 study of Schizophrenia, has completed, sponsored by Karuna Therapeutics.
- COMPLETED
- Registry status
- Phase 3
- Development phase
- 566 participants
- Enrollment target
- 20
- Study locations
Study Summary
This is a Phase 3, multicenter, 56-week, outpatient, open-label (OL) study to evaluate the long-term safety, tolerability, and efficacy of KarXT in de novo subjects with Diagnostic and Statistical Manual-Fifth Edition (DSM-5) schizophrenia. In this OL study, all subjects will receive KarXT (a fixed combination of xanomeline 125 mg and trospium chloride 30 mg twice daily \[BID\]) for up to 52 weeks. The primary objective of the study is to assess the long-term safety and tolerability of KarXT in subjects with a DSM-5 diagnosis of schizophrenia. The secondary objective of this study is to assess the long-term efficacy and characterize the pharmacokinetics of xanomeline and trospium after administration of KarXT.
Primary Outcome
TEAEs are defined as events with an onset date on or after the first dose of KarXT. An Adverse Event is any symptom, physical sign, syndrome, or disease that either emerges during the study or, if present at baseline, worsens during the study, regardless of the suspected cause of the event using the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 5.0.
Conditions Studied
Interventions
- DRUG Xanomeline and Trospium Chloride Capsules
Study Locations (20)
California
- Local Institution - 011-240 - Anaheim
- Advanced Research Center, Inc. - Anaheim
- Clinical Innovations, Inc - Bellflower
- Local Institution - 011-222 - Bellflower
- Local Institution - 011-263 - Bellflower
- Local Institution - 011-257 - Cerritos
- ATP Clinical Research Inc - Costa Mesa
- ATP Clinical Research, Inc. - Costa Mesa
- Local Institution - 011-206 - Culver City
- ProScience Research Group - Culver City
- Local Institution - 011-253 - Garden Grove
- Local Institution - 011-202 - Glendale
- Behavioral Clinical Research, Inc. - Glendale
- Omega Clinical Trials - La Habra
- Omega Clinical Trials - La Habra
- Alliance for Wellness dba Alliance for Research - Long Beach
Arkansas
- Local Institution - 011-238 - Little Rock
- Woodland International Research Group - Little Rock
- Local Institution - 011-201 - Rogers
- Woodland Research Northwest - Rogers
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 566 participants |
| Start Date | 2021-06-02 |
| Est. Completion | 2024-05-24 |
| Phase | Phase 3 |
What the finished NCT04820309 record still lists
NCT04820309 is an interventional study that assigns participants to a tested intervention. The registered 566 participants enrollment target is mid-sized for trials with a published cap, above the 217-participant average among 315 other Schizophrenia trials with a reported enrollment target (161% higher).
The record links to 1 condition, with Schizophrenia appearing as the primary indexed condition, and to 1 intervention - of which Xanomeline and Trospium Chloride Capsules is the first listed.
NCT04820309 names 20 study sites across 2 states, led by California, Arkansas.
Frequently Asked Questions
What is clinical trial NCT04820309 about?
NCT04820309 is a clinical study titled "An Open-label Study to Assess the Long-term Safety, Tolerability, and Efficacy of KarXT in Adult Patients With Schizophrenia (EMERGENT-5)". This is a Phase 3, multicenter, 56-week, outpatient, open-label (OL) study to evaluate the long-term safety, tolerability, and efficacy of KarXT in de novo subjects with Diagnostic and Statistical Manual-Fifth Edition (DSM-5) schizophrenia. In this OL study, all subjects will receive KarXT (a fixed ...
What is the current status of trial NCT04820309?
This trial is currently completed. It is a Phase 3 study. The enrollment target is 566 participants. The study started on 2021-06-02. Estimated completion is 2024-05-24.
What conditions does trial NCT04820309 study?
This clinical trial studies the following conditions: Schizophrenia.
What interventions are being tested in trial NCT04820309?
The interventions under investigation include: Xanomeline and Trospium Chloride Capsules (DRUG).
Who is sponsoring clinical trial NCT04820309?
This trial is sponsored by Karuna Therapeutics, which has 11 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT04820309 being conducted?
This trial has 20 study locations across Arkansas, California. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Schizophrenia
Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.
Where NCT04820309's enrollment target sits among peer trials
566 33rd of 315 higher than 283 of 315 other Schizophrenia trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Schizophrenia trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
-
NBI-1117568-SCZ3032: Long-Term Evaluation of NBI-1117568 in Adults With Schizophrenia
RECRUITING · Phase 3
-
NBI-1117568-SCZ3030: Evaluation of NBI-1117568 in Inpatient Adults With Schizophrenia
RECRUITING · Phase 3
-
A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Schizophrenia in Adolescents (EMERGENT TEEN)
RECRUITING · Phase 3
-
Efficacy and Safety of Cariprazine in the Treatment of Adolescent Participants (13 to 17 Years of Age) With Schizophrenia
RECRUITING · Phase 3
-
Safety and Efficacy of Brilaroxazine (RP5063) in Schizophrenia
RECRUITING · Phase 3
-
A Trial of the Efficacy and Safety of SEP-363856 in Acutely Psychotic Participants With Schizophrenia
RECRUITING · Phase 3
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT05472441 · 568 participants · NA
Linking Education, Produce Provision, and Community Referrals to Improve Diabetes Care (LINK)
- NCT06146725 · 564 participants
The RESBIOP-study: Resection Versus Biopsy in High-grade Glioma Patients (ENCRAM 2202)
- NCT06188520 · 564 participants · Phase 1
A First-in-human Dose Escalation and Expansion Study to Evaluate the Safety, and Tolerability of AZD8421 Alone or in Combination in Participants With Selected Advanced or Metastatic Solid Tumors
- NCT06628453 · 564 participants · NA
CGM for Management of Type 2 Diabetes in Pregnancy
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI