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A Study of the Efficacy (Effectiveness) of Paliperidone Palmitate in the Prevention of Recurrence of the Symptoms of Schizophrenia.

This study has been completed.
Janssen-Cilag International NV
Information provided by (Responsible Party):
Johnson & Johnson Pharmaceutical Research & Development, L.L.C. Identifier:
First received: May 17, 2005
Last updated: June 19, 2014
Last verified: June 2014
The purpose of this study is to evaluate the efficacy of paliperidone palmitate compared with placebo in the prevention of recurrence of the symptoms of schizophrenia and to assess the safety and tolerability of paliperidone palmitate in patients with stable and symptomatic schizophrenia. The placebo used in this study was a nutritional substance known as 20% Intralipid emulsion given to patients requiring intravenous feedings.

Condition Intervention Phase
Drug: Placebo
Drug: Paliperidone Palmitate
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: A Randomized Double-blind Placebo-controlled Parallel Group Study Evaluating Paliperidone Palmitate in the Prevention of Recurrence in Patients With Schizophrenia. Placebo Consists of 20% Intralipid (200 mg/mL) Injectable Emulsion.

Resource links provided by NLM:

Further study details as provided by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.:

Primary Outcome Measures:
  • The primary efficacy criteria for this study is the time from randomization to the first recurrence event during the double-blind recurrence prevention period [ Time Frame: After 68 relapse events ]

Secondary Outcome Measures:
  • Changes from randomization to the end of the recurrence prevention period in PANSS (total and subscales), CGI-S, and PSP. Incidence of adverse events, labs and ECGs throughout study. [ Time Frame: After 68 relapse events ]

Enrollment: 414
Study Start Date: February 2005
Study Completion Date: February 2008
Primary Completion Date: February 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 001
Paliperidone Palmitate 25, 50, 75 or 100 mg eq every 4 wk for up to 24 mo
Drug: Paliperidone Palmitate
25, 50, 75 or 100 mg eq every 4 wk for up to 24 mo
Placebo Comparator: 002
Placebo Placebo every 4 wk up to 24 mo
Drug: Placebo
Placebo every 4 wk up to 24 mo

Detailed Description:
Many patients with schizophrenia have difficulty adhering to a daily oral treatment regimen. Long-acting injectable formulations, such as long-acting injectable paliperidone palmitate, may provide therapeutic plasma concentrations over several weeks, thereby eliminating the need for daily oral medication and making compliance easier. This study is a randomized (patients will be assigned to different treatment groups based solely on chance), double-blind (neither the patient nor the physician will know if placebo or drug is being given and at what dose), placebo-controlled, parallel-group, multicenter study followed by an open-label extension period in patients with schizophrenia. The study is designed to evaluate the efficacy of paliperidone palmitate (a long-acting injectable formulation) in delaying the time to and decreasing the rate of recurrence compared with placebo in patients with schizophrenia. The study will consist of 5 periods: an up to 7-day screening/washout/tolerability period, a 9-week open-label transition period, a 24-week open-label maintenance period, a randomized, variable-length double-blind, placebo-controlled recurrence prevention period, and an up to 52-week open-label extension period. Patients will have intramuscular (i.m.) study drug injections and efficacy and safety evaluations performed every 4 weeks throughout the study. Efficacy will be evaluated during the study using a recurrence assessment, the Positive and Negative Symptom Scale for Schizophrenia (PANSS), the Clinical Global Impression - Severity (CGI-S) scale, and the Personal and Social Performance (PSP) scale. Safety will be assessed throughout the study by monitoring adverse events; use of extrapyramidal symptoms (EPS) rating scales (Abnormal Involuntary Movement Scale [AIMS], Barnes Akathisia Rating Scale [BARS], Simpson Angus Scale [SAS]); clinical laboratory testing; vital signs (temperature, blood pressure, and heart rate) measurements; electrocardiograms (ECGs); and physical examinations. Additionally, the patients will assess the tolerability of the injections by evaluating the pain of the injection and the pain at the injection sites. Tolerability test: 3 mg/day of oral ER OROS paliperidone for 4 days. Transition (9 wks): 50 mg eq. paliperidone palmitate i.m. dose on Day 1, then i.m. injections (25, 50, or 100 mg eq.) once every 4 wks (q4wk). Maintenance (24-wks): paliperidone palmitate i.m. injections (25, 50, or 100 mg eq.) q4wk. Recurrence Prevention: paliperidone palmitate i.m. injections (25, 50, or 100 mg eq. or placebo) q4wk. Open-label paliperidone palmitate (25, 50, 75, or 100 mg eq.) q4wk for 12 dosing periods.

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

Inclusion Criteria:

  • Patients who meet the diagnostic criteria for schizophrenia according to DSM-IV-TM for at least 1 year before screening
  • have a PANSS score of <120
  • have a body mass index (BMI) >/=15.0 kilogram (kg)/meter (m)2
  • and have resided at the same address for at least 30 days

Exclusion Criteria:

  • Patients unable to provide their own consent
  • have been involuntarily committed to psychiatric hospitalization
  • have primary, active DSM-IV-TM diagnosis other than schizophrenia
  • who have a DSM-IV-TM diagnosis of active substance dependence within 3 months before screening (nicotine and caffeine are not exclusionary)
  • have a history of treatment resistance as defined by failure to respond to 2 adequate trials (minimum of 4 weeks at a therapeutic dose) of different antipsychotic medications
  • have a history of any severe preexisting gastrointestinal narrowing or inability to swallow the medication whole with water
  • have a history of neuroleptic malignant syndrome (NMS)
  • are at significant risk of suicidal or violent behavior
  • current presence of any significant or unstable medication condition
  • treatment with any protocol disallowed therapies
  • clinically significant result from screening laboratory or ECG.
  Contacts and Locations
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Please refer to this study by its identifier: NCT00111189

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Sponsors and Collaborators
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Janssen-Cilag International NV
Study Director: Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Johnson & Johnson Pharmaceutical Research & Development, L.L.C. Identifier: NCT00111189     History of Changes
Other Study ID Numbers: CR004198
Study First Received: May 17, 2005
Last Updated: June 19, 2014

Keywords provided by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.:
Paliperidone palmitate
recurrence prevention

Additional relevant MeSH terms:
Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders
Disease Attributes
Pathologic Processes
Paliperidone Palmitate
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Physiological Effects of Drugs
Psychotropic Drugs
Serotonin 5-HT2 Receptor Antagonists
Serotonin Antagonists
Serotonin Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Dopamine D2 Receptor Antagonists
Dopamine Antagonists
Dopamine Agents processed this record on May 25, 2017