This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Efficacy and Safety of Iloperidone Compared With Placebo and Active Control in Subjects With Acute Schizophrenia

This study has been completed.
Information provided by:
Vanda Pharmaceuticals Identifier:
First received: November 10, 2005
Last updated: July 18, 2012
Last verified: July 2012
The purpose of this study is to determine the safety and efficacy of iloperidone compared to placebo and an active comparator in the treatment of patients with schizophrenia in acute exacerbation.

Condition Intervention Phase
Schizophrenia Drug: iloperidone Drug: active comparator Drug: placebo Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: A Randomized, Double-blind, Placebo- and Active-controlled, Multicenter Study to Evaluate the Efficacy, Safety and Tolerability of Iloperidone in Schizophrenic Patients in Acute Exacerbation Followed by a Long-term Treatment Phase.

Resource links provided by NLM:

Further study details as provided by Vanda Pharmaceuticals:

Primary Outcome Measures:
  • Positive and Negative Symptom Scale (PANSS) - Total Score

Secondary Outcome Measures:
  • Pharmacogenetic analysis

Estimated Enrollment: 600
Study Start Date: November 2005
Estimated Study Completion Date: March 2007
Primary Completion Date: September 2006 (Final data collection date for primary outcome measure)
Detailed Description:

Schizophrenia is a severe mental illness affecting an estimated 1% of the world's population. Patients with schizophrenia suffer from productive symptoms (e.g., hallucinations and delusions), and deficit symptoms (e.g., a reduction or absence of normal behaviors or emotions). Other symptoms include a reduced ability to recall and learn new information.

Iloperidone is being development as a treatment for symptoms of schizophrenia. This trial will test the safety and efficacy of iloperidone in patients with an acute exacerbation of the disease.


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subject with schizophrenia.
  • Subject must sign a written consent form.

Exclusion Criteria:

  • Clinically significant disease of the heart, kidneys, liver or gastrointestinal system
  • Psychiatric disorder other than schizophrenia
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00254202

  Show 42 Study Locations
Sponsors and Collaborators
Vanda Pharmaceuticals
  More Information

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00254202     History of Changes
Other Study ID Numbers: VP-VYV-683-3101
Study First Received: November 10, 2005
Last Updated: July 18, 2012

Keywords provided by Vanda Pharmaceuticals:
Atypical antipsychotic

Additional relevant MeSH terms:
Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders processed this record on September 19, 2017