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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 3INTERVENTIONAL

A Trial of the Efficacy and Safety of SEP-363856 in Acutely Psychotic Participants With Schizophrenia

A Phase 3, Randomized, Double-blind, Parallel-group, Placebo-controlled, Multicenter Trial to Evaluate the Efficacy and Safety of SEP-363856 in Acutely Psychotic Participants With Schizophrenia

A Trial of the Efficacy and Safety of SEP-363856 in Acutely Psychotic Participants With Schizophrenia (NCT06894212) is a Phase 3 interventional studying Schizophrenia, sponsored by Otsuka Pharmaceutical Development & Commercialization, Inc.. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

Evaluate the efficacy and safety of Ulotaront (SEP-363856) in acutely psychotic subjects with schizophrenia

What Stage of Research Is This?

Phase 3 trials confirm efficacy and safety in large patient groups (often 300–3,000+) and form the evidence base for an FDA approval submission. For Schizophrenia, Phase 3 studies typically randomize participants between the investigational treatment and either a placebo or current standard of care. A successful Phase 3 result is the threshold most treatments need to clear before regulatory approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

A target enrollment of 522 participants makes this a sizable late-stage trial. Studies in this range typically have enough power to detect clinically meaningful differences from a comparator and to characterize less-common side effects.

Who May Be Eligible (Plain English)

Key Who May Qualify: - Male or female participants between 18 to 65 years of age (inclusive) at the time of consent. - Participant has an identified reliable informant (eg, caregiver, relative, friend, case worker, residential treatment staff). - Participant is experiencing an acute exacerbation or relapse of symptoms, with onset ≤ 2 months prior to screening 1. The participant requires hospitalization for this acute exacerbation or relapse of symptoms. 2. If already an inpatient at screening, has been hospitalized for less than 2 weeks for the current exacerbation at the time of screening. - Participants who are experiencing an acute exacerbation of psychotic symptoms and marked deterioration of usual function as demonstrated by meeting ALL of the following criteria at the screening and baseline visits: 1. Participant must have a PANSS total score ≥ 80 AND 2. Participant must have a CGI-S score ≥ 4. - Participants who have received previous outpatient antipsychotic treatment at an adequate dose (minimal recommended dose for the treatment of schizophrenia according to the manufacturer labeling) for an adequate duration (at least 6 weeks) and who showed a previous good response. Key Who Should NOT Join This Trial: - Sexually active participants or persons of childbearing potential who do not agree to practice 2 different clinical trial sponsor approved methods of birth control or remain abstinent during the course of the trial and for 30 days after the last dose of study drug. - Participant has a current DSM-5 diagnosis or presence of symptoms consistent with a DSM-5 diagnosis other than schizophrenia. - Participant has had psychiatric hospitalization(s) for more than 30 days (cumulative) during the 90 days prior to screening. - Participant has previously received SEP-363856 or was previously enrolled in a SEP-363856 clinical study Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Key Inclusion Criteria: * Male or female participants between 18 to 65 years of age (inclusive) at the time of consent. * Participant has an identified reliable informant (eg, caregiver, relative, friend, case worker, residential treatment staff). * Participant is experiencing an acute exacerbation or relapse of symptoms, with onset ≤ 2 months prior to screening 1. The participant requires hospitalization for this acute exacerbation or relapse of symptoms. 2. If already an inpatient at screening, has been hospitalized for less than 2 weeks for the current exacerbation at the time of screening. * Participants who are experiencing an acute exacerbation of psychotic symptoms and marked deterioration of usual function as demonstrated by meeting ALL of the following criteria at the screening and baseline visits: 1. Participant must have a PANSS total score ≥ 80 AND 2. Participant must have a CGI-S score ≥ 4. * Participants who have received previous outpatient antipsychotic treatment at an adequate dose (minimal recommended dose for the treatment of schizophrenia according to the manufacturer labeling) for an adequate duration (at least 6 weeks) and who showed a previous good response. Key Exclusion Criteria: * Sexually active participants or persons of childbearing potential who do not agree to practice 2 different clinical trial sponsor approved methods of birth control or remain abstinent during the course of the trial and for 30 days after the last dose of study drug. * Participant has a current DSM-5 diagnosis or presence of symptoms consistent with a DSM-5 diagnosis other than schizophrenia. * Participant has had psychiatric hospitalization(s) for more than 30 days (cumulative) during the 90 days prior to screening. * Participant has previously received SEP-363856 or was previously enrolled in a SEP-363856 clinical study

Treatments Being Tested

DRUG

SEP-363856

tablet

OTHER

Placebo

tablet

Locations (20)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Pillar Clinical Research LLC - Bentonville Site
Bentonville, Arkansas, United States
Pillar Clinical Research (Little Rock AR) Site
Little Rock, Arkansas, United States
Woodland International Research Group Site
Little Rock, Arkansas, United States
Woodland Research Northwest Site
Rogers, Arkansas, United States
Clinical Innovations, Inc. dba CITrials (Bellflower)
Bellflower, California, United States
ProScience Research Group Site
Culver City, California, United States
CenExel CNS - Garden Grove (Collaborative Neuroscience Research) Site
Garden Grove, California, United States
Synergy San Diego Site
Lemon Grove, California, United States
Catalina Research Institute Site
Montclair, California, United States
Clinical Innovations Inc. DBA CITrials (Riverside)
Riverside, California, United States
Richmond Behavioral Associates LLC
Riverside, California, United States
CNRI - San Diego LLC Site
San Diego, California, United States
Schuster Medical Research Institute
Sherman Oaks, California, United States
CenExel CNS - Los Alamitos (Collaborative Neuroscience Research)
Torrance, California, United States
Galiz Research Site
Hialeah, Florida, United States
Segal Trials - Larkin Behavioral Health - Inpatient & Early Phase Site
Hollywood, Florida, United States
Cenexel RCA (Research Centers of America) Site
Hollywood, Florida, United States
Premier Clinical Research Institute
Miami, Florida, United States
D & H National Research Centers NC
Miami, Florida, United States
Innovative Clinical Research, Inc. Site
Miami Lakes, Florida, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06894212), the sponsor (Otsuka Pharmaceutical Development & Commercialization, Inc.), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06894212 clinical trial studying?

Evaluate the efficacy and safety of Ulotaront (SEP-363856) in acutely psychotic subjects with schizophrenia The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06894212?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06894212?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06894212. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06894212. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.