A Comparison of Paliperidone and Risperidone for Treatment of Patirnts With Methamphetamine-Associated Psychosis

This study has been completed.
Information provided by (Responsible Party):
Wei Hao, Central South University
ClinicalTrials.gov Identifier:
First received: March 28, 2013
Last updated: February 2, 2015
Last verified: February 2015
Methamphetamine-associated psychosis (MAP) has been considered a pharmacological or environmental pathogen model of schizophrenia (SCZ) due in part to similarities in clinical presentation (i.e. paranoia, hallucinations, disorganized speech, and negative symptoms), response to treatment (e.g.neuroleptics),and pathologic mechanisms (e.g. central dopaminergic neurotransmission) of both conditions. Both paliperidone and risperidone are second generation antipsychotics,but have same pharmacological effects of antipsychotic treatment and paliperidone may have more efficacy and safty.This study was designed to examine the acute efficacy, safety, and tolerability of paliperidone and risperidone for patients with MAP.

Condition Intervention Phase
Methamphetamine Dependence
Drug: paliperidone
Drug: Risperidone
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Multiple-Center, Randomized, Double-Blind Study of Comparison of Paliperidone and Risperidone for Treatment of Patirnts With Methamphetamine-Associated Psychosis

Resource links provided by NLM:

Further study details as provided by Central South University:

Primary Outcome Measures:
  • The severity of psychosis [ Time Frame: up to 4 weeks. participants will be followed for the duration of hospital stay ] [ Designated as safety issue: Yes ]
    Positive and Negative Syndrome Scale

Secondary Outcome Measures:
  • Clinical general status [ Time Frame: up to 4 weeks. participants will be followed for the duration of hospital stay ] [ Designated as safety issue: Yes ]
    Clinical general rating scale

Enrollment: 120
Study Start Date: February 2013
Study Completion Date: May 2014
Primary Completion Date: January 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: paliperidone
paliperidone arm,6mg/pill,6-12mg/day,non-forced titration method.last2-4weeks.
Drug: paliperidone
Paliperidone group,6mg/pill,6mg-12mg/day non-forced titration method,last 2-4weeks
Other Names:
  • Paliperidone Extended-Release Tablets
  • Invega
Active Comparator: .Risperidone
Risperidone arm and placebo tables,1mg/pill,2mg-6mg/day,non-forced titration method.last2-4weeks
Drug: Risperidone
Risperidone group,1mg/pill,2mg-6mg/day non-forced titration method,last 2-4weeks
Other Name: Risperdal H20070057

Detailed Description:
Methods:A Multiple-Center, Randomized, Double-Blind.

Ages Eligible for Study:   19 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Patients,Diagnostic and Statistical Manual of Mental Disorders 4thed. (DSM-IV) criteria for Methamphetamine-Associated Psychosis.
  2. Must sign a Information consent form.
  3. Required to provide detailed address and phone number

Exclusion Criteria:

  1. Serious organic disease.
  2. Suicide ideation or hurt others.
  3. Taking antipsychotic within two weeks before.
  4. drug allergy to Risperidone or paliperidone.
  5. pregnancy and breastfeeding women.
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01822730

China, Hunan
The Second Xiangya Hospital of Central University
Changsha, Hunan, China, 410011
Sponsors and Collaborators
Wei Hao
Study Director: Wei Hao, MD., Ph.D. Central South University
  More Information

Responsible Party: Wei Hao, The Second Xiangya Hospital of Cental South University, Central South University
ClinicalTrials.gov Identifier: NCT01822730     History of Changes
Other Study ID Numbers: 100000-068943 
Study First Received: March 28, 2013
Last Updated: February 2, 2015
Health Authority: China: Ethics Committee
China: National Natural Science Foundation
United States: Food and Drug Administration

Keywords provided by Central South University:
Methamphetamine-Associated Psychosis

Additional relevant MeSH terms:
Paliperidone Palmitate
Adrenergic Agents
Adrenergic Uptake Inhibitors
Antipsychotic Agents
Autonomic Agents
Central Nervous System Depressants
Central Nervous System Stimulants
Dopamine Agents
Dopamine Antagonists
Dopamine D2 Receptor Antagonists
Dopamine Uptake Inhibitors
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Neurotransmitter Uptake Inhibitors
Peripheral Nervous System Agents
Physiological Effects of Drugs
Psychotropic Drugs
Serotonin 5-HT2 Receptor Antagonists
Serotonin Agents
Serotonin Antagonists
Tranquilizing Agents

ClinicalTrials.gov processed this record on May 25, 2016