Randomized Withdrawal Study in Patients With Schizophrenia

NCT ID: NCT06961968

Last Updated: 2026-01-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

400 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-14

Study Completion Date

2027-11-30

Brief Summary

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The purpose of this research is to evaluate the efficacy of dosing iloperidone long-acting injection (LAI) compared to placebo in preventing the exacerbation of symptoms in patients with schizophrenia.

Detailed Description

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Conditions

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Schizophrenia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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iloperidone

During the 12-week stabilization phase, all patients will receive open-label iloperidone administered as oral tablets (weeks 1-6) and as long-acting intramuscular injections (weeks 7-12). Subsequently, patients will be randomized in a 1:1 ratio to one of two arms: iloperidone long-acting injection or matching placebo. Post-randomization this arm will receive double-blind study drug (iloperidone long-acting injection) as long-acting intramuscular injections for up to 52 weeks.

Group Type EXPERIMENTAL

iloperidone

Intervention Type DRUG

iloperidone LAI

placebo

During the 12-week stabilization phase, all patients will receive open-label iloperidone administered as oral tablets (weeks 1-6) and as long-acting intramuscular injections (weeks 7-12). Subsequently, patients will be randomized in a 1:1 ratio to one of two arms: iloperidone long-acting injection or matching placebo. Post-randomization this arm will receive double-blind study drug (matching placebo) as long-acting intramuscular injections for up to 52 weeks.

Group Type PLACEBO_COMPARATOR

placebo

Intervention Type DRUG

matching placebo

Interventions

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iloperidone

iloperidone LAI

Intervention Type DRUG

placebo

matching placebo

Intervention Type DRUG

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Vanda Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Vanda Investigational Site

Rogers, Arkansas, United States

Site Status RECRUITING

Vanda Investigational Site

Costa Mesa, California, United States

Site Status RECRUITING

Vanda Investigational Site

Lemon Grove, California, United States

Site Status RECRUITING

Vanda Investigational Site

Oceanside, California, United States

Site Status RECRUITING

Vanda Investigational Site

Pico Rivera, California, United States

Site Status RECRUITING

Vanda Investigational Site

San Diego, California, United States

Site Status RECRUITING

Vanda Investigational Site

Walnut Creek, California, United States

Site Status RECRUITING

Vanda Investigational Site

North Miami, Florida, United States

Site Status RECRUITING

Vanda Investigational Site

Atlanta, Georgia, United States

Site Status RECRUITING

Vanda Investigational Site

Peachtree Corners, Georgia, United States

Site Status RECRUITING

Vanda Investigational Site

Chicago, Illinois, United States

Site Status RECRUITING

Vanda Investigational Site

Flowood, Mississippi, United States

Site Status RECRUITING

Vanda Investigational Site

Saint Charles, Missouri, United States

Site Status RECRUITING

Vanda Investigational Site

St Louis, Missouri, United States

Site Status RECRUITING

Vanda Investigational Site

Las Vegas, Nevada, United States

Site Status RECRUITING

Vanda Investigational Site

Marlton, New Jersey, United States

Site Status RECRUITING

Vanda Investigational Site

Staten Island, New York, United States

Site Status RECRUITING

Vanda Investigational Site

Austin, Texas, United States

Site Status RECRUITING

Vanda Investigational Site

Houston, Texas, United States

Site Status RECRUITING

Vanda Investigational Site

Irving, Texas, United States

Site Status RECRUITING

Vanda Investigational Site

Richardson, Texas, United States

Site Status RECRUITING

Vanda Investigational Site

Bellevue, Washington, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Vanda Pharmaceuticals Inc.

Role: CONTACT

202-734-3400

Facility Contacts

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Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Vanda Pharmaceuticals

Role: primary

202-734-3400

Other Identifiers

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VP-VYV-683-3102

Identifier Type: -

Identifier Source: org_study_id

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