NCT00385801

Brief Summary

The purpose of this study is to examine the effects of the administration of Risperidal-Consta on the brain's reward circuitry using Magnetic resonance Imaging (MRI), behavioral tests and measuring cocaine craving and use among people with active cocaine dependence.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
31

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Sep 2005

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2005

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

October 6, 2006

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 11, 2006

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2010

Completed
6.7 years until next milestone

Results Posted

Study results publicly available

April 28, 2017

Completed
Last Updated

April 28, 2017

Status Verified

March 1, 2017

Enrollment Period

5 years

First QC Date

October 6, 2006

Results QC Date

April 30, 2015

Last Update Submit

March 20, 2017

Conditions

Keywords

cocainedependencerisperidalMRI

Outcome Measures

Primary Outcomes (2)

  • Functional MRI Activation Patterns in the Nucleus Accumbens and Amygdala in Response to Cocaine Cues

    Measure of Dispersion/Precision not calculated, and raw data are no longer available

    12 weeks

  • Cocaine Use by Quantitative Urine Samples

    After randomization, participants provided urine samples every week for the first 3 weeks and then every 2 weeks for 8 weeks, up to 7 samples per participant. The average visits with cocaine negative urine samples per participant are reported below

    12 weeks

Secondary Outcomes (2)

  • Cocaine Craving

    12 weeks

  • Amygdala Volume by MRI

    12 weeks

Study Arms (2)

Placebo

PLACEBO COMPARATOR

Identical placebo tablets and injections

Drug: Placebo

risperidone consta

ACTIVE COMPARATOR

Risperidone 1-2 mg tablets and Risperidone 25 mg injections

Drug: Risperidone

Interventions

risperidone consta
Placebo

Eligibility Criteria

Age18 Years - 60 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • current cocaine dependence who use cocaine at least every 2 weeks
  • Non-treatment seekers who intend to continue using cocaine
  • Male 18-60 years of age
  • Potential participants must be literate in the English language, and be able to understand and complete rating scales and questionnaires accurately
  • Able to provide informed consent
  • Potential participants must be able to identify at least one "locator" person to assist in tracking the participant for follow-up assessments

You may not qualify if:

  • Other current substance dependence requiring immediate detoxification
  • Diagnosis of schizophrenia, bipolar disorder, current major depressive disorder
  • Currently suicidal or at high risk for suicide in the judgment of the investigator
  • Carrying a medical device incompatible with MRI (e.g., metal implants such as surgical clips or pacemakers and extensive dental work such as bridges) or suffering from significant claustrophobia that would make MRI unfeasible.
  • Size incompatible with MRI procedures
  • Serious medical illness including HIV-1 infection
  • Hepatitis C + titer with liver enzymes more than 2x normal or a Mini-Mental Status Exam Score of \<25/30
  • Insulin dependent diabetes mellitus (IDDM) or non- insulin dependent diabetes mellitus (NIDDM) and abnormal Hemoglobin A1C
  • Severe hepatic or renal impairment
  • History of seizure disorder, delirium, dementia, or mental disorders due to general medical conditions
  • History of head trauma or stroke with lasting neurological sequelae
  • Tardive dyskinesia, extrapyramidal movement disorder, Parkinson's Disease or history of Neuroleptic Malignant Syndrome
  • Clinical or laboratory evidence of uncontrolled hypothyroidism/hyperthyroidism
  • Orthostatic hypotension, defined as a decrease of at \> 10 mm Hg in systolic blood pressure and/or an increase in heart rate of \> 20 beats per minute, measured one minute following transition from a supine to a standing position.
  • History of allergy or hypersensitivity to Risperidone
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

MGH Addiction Research Program

Boston, Massachusetts, 02114, United States

Location

Related Publications (1)

  • Loebl T, Angarita GA, Pachas GN, Huang KL, Lee SH, Nino J, Logvinenko T, Culhane MA, Evins AE. A randomized, double-blind, placebo-controlled trial of long-acting risperidone in cocaine-dependent men. J Clin Psychiatry. 2008 Mar;69(3):480-6. doi: 10.4088/jcp.v69n0321.

MeSH Terms

Conditions

Cocaine-Related Disorders

Interventions

Risperidone

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

PyrimidinonesPyrimidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Results Point of Contact

Title
A. Eden Evins, MD, MPH. Director of the MGH-Harvard Center for Addiction Medicine
Organization
Massachusetts General Hospital - Harvard Medical School

Study Officials

  • Eden A Evins, MD MPH

    Massachusetts General Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PI

Study Record Dates

First Submitted

October 6, 2006

First Posted

October 11, 2006

Study Start

September 1, 2005

Primary Completion

September 1, 2010

Study Completion

September 1, 2010

Last Updated

April 28, 2017

Results First Posted

April 28, 2017

Record last verified: 2017-03

Locations