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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.

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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

FieldValue
Enrollment Target 566 participants
Start Date 2021-06-02
Est. Completion 2024-05-24
Phase Phase 3
Karuna Therapeutics

11 total trials

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.

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

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Source: ClinicalTrials.gov NCT04820309, the US trial registry maintained by the National Library of Medicine. NCT04820309 (mid enrollment · wide site footprint · completed) retrieved and formatted by PlainTrial, see methodology.