Testing whether stopping iloperidone long-acting injection causes symptom return in adults with schizophrenia.
Official title: A Multicenter, Double-Blind, Randomized Withdrawal Study in Patients With Schizophrenia Receiving Either Iloperidone Long-Acting Injection (LAI) or Placebo Injection
Run by Vanda Pharmaceuticals · NCT06961968 · Data updated 2026-11-12
This trial tests whether iloperidone long-acting injection prevents symptom worsening compared with placebo in adults with schizophrenia.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 400 (estimated) |
| Sponsor | Vanda Pharmaceuticals Industry-sponsored |
| Locations | 22 sites (Rogers, Arkansas and 21 other locations) |
| Status | Recruiting |
| Started | May 14, 2025 |
| Main results expected | November 2027 |
| Study ends | November 2027 |
| Registry record updated | January 12, 2026 |
| Trial ID | NCT06961968 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18–65 with a DSM-5 diagnosis of schizophrenia who require ongoing psychiatric treatment are the intended participants.
✕Probably not a fit
People younger than 18 or older than 65, or those whose primary recent psychiatric diagnosis was not schizophrenia, are unlikely to benefit from this trial.
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 randomized withdrawal trial will compare iloperidone long-acting injection to placebo in adults with schizophrenia to see whether continued active treatment reduces symptom exacerbation. Eligible adults (18–65) with a DSM-5 diagnosis of schizophrenia who need ongoing psychiatric treatment are randomized to receive either iloperidone LAI or placebo and are followed for return or worsening of symptoms. Standard clinical and safety assessments are used during the follow-up period to detect exacerbations and adverse events. The trial is run at three Vanda investigational sites in the United States.
Why it matters
Potential benefit: If successful, continued iloperidone LAI could reduce relapse and hospitalizations by keeping symptoms stable.
How similar studies have gone: Other long-acting injectable antipsychotics have reduced relapse in randomized withdrawal trials, but published data specifically on iloperidone LAI are limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Males or females 18 to 65 years of age (inclusive) * Diagnosed with schizophrenia per DSM-5 criteria * In need of ongoing psychiatric treatment Exclusion Criteria: * DSM-5 diagnosis of a psychiatric disorder other than schizophrenia that was the primary focus of treatment within the previous six months
Where it's running
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Vanda Investigational Site
Rogers, Arkansas, United States Recruiting -
Vanda Investigational Site
Costa Mesa, California, United States Recruiting -
Vanda Investigational Site
Lemon Grove, California, United States Recruiting -
Vanda Investigational Site
Oceanside, California, United States Recruiting -
Vanda Investigational Site
Pico Rivera, California, United States Recruiting -
Vanda Investigational Site
San Diego, California, United States Recruiting
Show 16 more locations
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Vanda Investigational Site
Walnut Creek, California, United States Recruiting -
Vanda Investigational Site
North Miami, Florida, United States Recruiting -
Vanda Investigational Site
Atlanta, Georgia, United States Recruiting -
Vanda Investigational Site
Peachtree Corners, Georgia, United States Recruiting -
Vanda Investigational Site
Chicago, Illinois, United States Recruiting -
Vanda Investigational Site
Flowood, Mississippi, United States Recruiting -
Vanda Investigational Site
Saint Charles, Missouri, United States Recruiting -
Vanda Investigational Site
St Louis, Missouri, United States Recruiting -
Vanda Investigational Site
Las Vegas, Nevada, United States Recruiting -
Vanda Investigational Site
Marlton, New Jersey, United States Recruiting -
Vanda Investigational Site
Staten Island, New York, United States Recruiting -
Vanda Investigational Site
Austin, Texas, United States Recruiting -
Vanda Investigational Site
Houston, Texas, United States Recruiting -
Vanda Investigational Site
Irving, Texas, United States Recruiting -
Vanda Investigational Site
Richardson, Texas, United States Recruiting -
Vanda Investigational Site
Bellevue, Washington, United States Recruiting
Study contacts
- Study coordinator: Vanda Pharmaceuticals Inc.
- Email: clinicaltrials@vandapharma.com
- Phone: 202-734-3400
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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.