Clinical trial Recruiting at 16 sites Phase 2 Interventional Ages 18 to 65

GXV813 for adults hospitalized with acute schizophrenia

Official title: A Phase 2a, Randomized, Participant- and Investigator- Blinded, Parallel-group, Placebo-controlled, Multicenter Study to Assess the Safety, Tolerability, and Treatment Response of GXV813 in Hospitalized Adults With DSM-5 Schizophrenia (STAR-1)

Run by Novartis · NCT07467993 · Data updated 2026-11-12

This trial will test whether the medication GXV813 helps adults hospitalized for an acute episode of schizophrenia and whether it is safe and well tolerated.

More Schizophrenia trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment142 (estimated)
SponsorNovartis
Industry-sponsored
Locations16 sites (Bentonville, Arkansas and 15 other locations)
StatusRecruiting
StartedMarch 16, 2026
Main results expectedJuly 29, 2027
Study endsJuly 29, 2027
Registry record updatedJuly 29, 2026
Trial IDNCT07467993 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults 18–65 with DSM-5–confirmed schizophrenia experiencing an acute relapse requiring hospitalization, able to consent, and willing to stay inpatient for the treatment period.

Probably not a fit

Patients who are stable outpatients, have psychotic disorders other than schizophrenia, are outside the 18–65 age range, or cannot consent are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 2, randomized, placebo-controlled study enrolls adults hospitalized for an acute exacerbation of schizophrenia to receive either GXV813 or placebo. Eligible participants are 18–65 years old with DSM-5–confirmed schizophrenia who require inpatient care and can provide informed consent. Participants must be willing to remain confined to the inpatient setting for the treatment period while investigators monitor symptom change, safety, and tolerability. Primary outcomes focus on treatment response during the acute episode and the occurrence of adverse events; dosing details and total study duration are not provided in the public record.

Why it matters

Potential benefit: If successful, GXV813 could provide a new treatment option that reduces acute psychotic symptoms and is tolerable for hospitalized patients.

How similar studies have gone: Other antipsychotic trials have shown benefit in acute hospitalized schizophrenia, but GXV813 appears to be a novel investigational compound with limited public efficacy data to date.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Participant is aged 18 to 65 years, inclusive, at screening
2. Participant is capable of providing informed consent
3. Participant has a primary diagnosis of schizophrenia, established by a comprehensive psychiatric evaluation based on the DSM-5 (American Psychiatric Association 2013) criteria and confirmed by Structured Clinical Interview for DSM-5 Clinical Trials version (SCID-5-CT)
4. Participant is willing and able to be confined to an inpatient setting for the study duration (except for the follow-up period), follow instructions, and comply with the protocol requirements
5. Participant is experiencing an acute exacerbation or relapse of psychotic symptoms, with onset less than 2 months before 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
6. Positive and Negative Syndrome Scale total score between 80 and 120, inclusive, at screening a. Score of ≥ 4 (moderate or greater) for ≥ 2 of the following Positive Scale (P) items:

   i. Item 1 (P1; delusions)

ii. Item 2 (P2; conceptual disorganization)

iii. Item 3 (P3; hallucinatory behavior)

iv. Item 6 (P6; suspiciousness/persecution)

Exclusion Criteria:

1. Any primary DSM-5 disorder other than schizophrenia within 12 months before screening (confirmed using Structured Clinical Interview for DSM-5, Clinical Trials Version (SCID-5-CT) at screening)
2. History of treatment resistance to antipsychotic medications defined as inadequate response to two adequate courses of pharmacotherapy or previous clozapine treatment for treatment-resistant schizophrenia
3. Participants who need to be treated with drugs that are known to be moderate and strong CYP3A4 inhibitors and inducers will be excluded
4. Participants taking a long-acting injectable antipsychotic could not have received a dose of medication in the last 12 weeks (24 weeks for INVEGA TRINZA®) before baseline

Other protocol-defined inclusion/exclusion criteria may apply

Where it's running

  • Pillar Clinical Research LLC
    Bentonville, Arkansas, United States
    Recruiting
  • CNRI Los Angeles LLC
    Pico Rivera, California, United States
    Recruiting
  • Segal Institute for Clinical Research
    Miami, Florida, United States
    Recruiting
  • CenExel iResearch
    Decatur, Georgia, United States
    Recruiting
  • Uptown Research Institute LLC
    Chicago, Illinois, United States
    Recruiting
  • Pillar Clinical Research LLC
    Chicago, Illinois, United States
    Recruiting
Show 10 more locations
  • Arch Clinical Trials LLC
    St Louis, Missouri, United States
    Recruiting
  • Novartis Investigative Site
    Sofia, Bgr, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Haskovo, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Kazanlak, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Lovech, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Plovdiv, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Sliven, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Sofia, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Veliko Tarnovo, Bulgaria
    Recruiting
  • Novartis Investigative Site
    Vratsa, Bulgaria
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.