NCT01510015

Brief Summary

This study evaluates the effects of psychological and pharmacological treatment of regular users of cannabis and psychostimulants in a treatment center (Kfar Izun) in Israel. The participants will undergo psychological evaluation before and during treatment and follow up at 4 months. Ten participants will undergo brain imaging of the dopamine receptor D2 in order to evaluate the effects of treatment on dopamine turnover in the brain. A control group of psychiatric in-patients undergoing treatment for psychiatric illness with be recruited from Geha Hospital in Israel. It is predicted that successful treatment of regular users of cannabis will be resulted in improvement in anxiety, depression and psychotic symptoms as well as in upregulation of dopamine turnover in participants that will undergo brain imaging.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2012

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 27, 2011

Completed
5 days until next milestone

Study Start

First participant enrolled

January 1, 2012

Completed
12 days until next milestone

First Posted

Study publicly available on registry

January 13, 2012

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2013

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2013

Completed
Last Updated

January 13, 2012

Status Verified

January 1, 2012

Enrollment Period

1.8 years

First QC Date

December 27, 2011

Last Update Submit

January 10, 2012

Conditions

Keywords

cannabispsychostimulantspsychosis

Outcome Measures

Primary Outcomes (1)

  • Questionnaire ratings of anxiety, depression and psychotic symptoms

    Questionnaire measures of anxiety (Spielberger) Depression (BDI) and psychotic symptoms (PNAAS) will be used at baseline, during treatment and follow up at 4 months

    4 months

Secondary Outcomes (1)

  • Dopamaine receptor D2 occupancy

    At baseline and after 4 months

Study Arms (2)

Anti-psychotic medication

ACTIVE COMPARATOR

Participants are treated with psychological treatment both group and individually as well as medications according to their mental condition.

Drug: Risperidone

Counseling

ACTIVE COMPARATOR

Participants will receive individual and group therapy

Drug: Risperidone

Interventions

variable dose

Also known as: Individual and group therapy
Anti-psychotic medicationCounseling

Eligibility Criteria

Age21 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • cannabis dependence with or without history of psychosis.

You may not qualify if:

  • pregnant women
  • under 18
  • neurological damage
  • HIV positive
  • dependence on other drugs such as heroin
  • cocaine or alcohol

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sourasky Medical center

Tel Aviv, 64239, Israel

Location

MeSH Terms

Conditions

Marijuana AbusePsychotic Disorders

Interventions

RisperidonePsychotherapy, Group

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental DisordersSchizophrenia Spectrum and Other Psychotic Disorders

Intervention Hierarchy (Ancestors)

PyrimidinonesPyrimidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsSocioenvironmental TherapyPsychotherapyBehavioral Disciplines and Activities

Study Officials

  • Michal Roll, Ph.D

    Sourasky Medical Center

    STUDY DIRECTOR

Central Study Contacts

Aviv M Weinstein, Ph.D

CONTACT

Hedva Shaham, M.D

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of Research and Development

Study Record Dates

First Submitted

December 27, 2011

First Posted

January 13, 2012

Study Start

January 1, 2012

Primary Completion

October 1, 2013

Study Completion

November 1, 2013

Last Updated

January 13, 2012

Record last verified: 2012-01

Locations