Cannabis DependenceNCT01510015
Evaluation of the Effects of Treatment of Psycho-stimulant and Cannabis-dependent Users in Israel
A study testing Risperidone in people with Cannabis Dependence and Psychostimulant Dependence, run by Tel-Aviv Sourasky Medical Center at 1 site in Israel.
Trial 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. Read more about this study
- Who is it for?
- Ages 21 to 45 years
- Conditions the study is for
- Cannabis Dependence, Psychostimulant Dependence
- What is being tested?
- Risperidone
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteIsrael
- Study dates
- Jan 2012to Nov 2013
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 to 45 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- cannabis dependence with or without history of psychosis.
Who cannot join
- pregnant women
- under 18
- neurological damage
- HIV positive
- dependence on other drugs such as heroin
- cocaine or alcohol
Trial locations and contacts
1 site in 1 country.
Israel1 site
Sourasky Medical center
Tel Aviv, 64239
Aviv Weinstein, Ph.D
Einat Even-Sapir, MD Ph.D
About this study
Official title: Evaluation of the Effects of Psychological and Pharmacological Treatment of Psycho-stimulant and Cannabis-dependent Users in Kfar Izun in Israel
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.
Read the detailed description
There is a significant number of cannabis and psychostimulant users that experience psychotic episodes and require psychiatric treatment. 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 using [I123] IBZM in Single Photon Emitted Tomography (SPECT) before and after treatment 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.
- Conditions
- Cannabis Dependence, Psychostimulant Dependence
- Being tested
- Risperidone
- Keywords
- cannabis, psychostimulants, psychosis
- Medical subject headings
- Marijuana Abuse, Psychotic Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RisperidoneDrug
Also called Individual and group therapy
variable dose
| Study group | Role | What they receive |
|---|---|---|
| Anti-psychotic medication | Active comparator | Participants are treated with psychological treatment both group and individually as well as medications according to their mental condition. Receives: Drug: Risperidone |
| Counseling | Active comparator | Participants will receive individual and group therapy Receives: Drug: Risperidone |
What is being measured
The primary outcome is the main question the study is designed to answer.
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
Measured: 4 months
Secondary outcomes (1)
Dopamaine receptor D2 occupancy
Measures of dopamine receptor D2 occupancy using [I123] IBZM in Single Photon Emitted Tomography (IBZM) will be taken before and after treatment at 4 months.
Measured: At baseline and after 4 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Jan 2012 (estimated)
- Study startJan 2012
- Primary completionOct 2013 (estimated)
- Study completionNov 2013 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cannabis DependenceStudies of the same condition, open and under way.
- More trials run by Tel-Aviv Sourasky Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Tel-Aviv Sourasky Medical Center
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Michal Roll PhD,MBA, Tel-Aviv Sourasky Medical Center
- Investigators
- Michal Roll, Ph.D, Study director, Sourasky Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01510015
- Sponsor's protocol ID
- 0503-11-TLV
- Status last verified
- Jan 2012
- First submitted
- 27 Dec 2011
- Last updated
- 13 Jan 2012
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 13 Jan 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of the Effects of Psychological and Pharmacological Treatment of Psycho-stimulant and Cannabis-dependent Users in Kfar Izun in Israel
- ClinicalTrials.gov ID
- NCT01510015
- Acronym / sponsor ID
- 0503-11-TLV
- Conditions
- Cannabis Dependence, Psychostimulant Dependence
- Keywords
- cannabis, psychostimulants, psychosis
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Tel-Aviv Sourasky Medical CenterOther government
- Study start
- Jan 2012
- Primary completion
- Oct 2013 (estimated)
- Study completion
- Nov 2013 (estimated)
- First posted
- 13 Jan 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
There is a significant number of cannabis and psychostimulant users that experience psychotic episodes and require psychiatric treatment. 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 using [I123] IBZM in Single Photon Emitted Tomography (SPECT) before and after treatment 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.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Anti-psychotic medication | Active comparator | Drug: RisperidoneParticipants are treated with psychological treatment both group and individually as well as medications according to their mental condition. |
| Counseling | Active comparator | Drug: RisperidoneParticipants will receive individual and group therapy |
Who may qualify
- Ages
- 21 to 45 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- cannabis dependence with or without history of psychosis.
Key exclusion criteria (6 listed)
- pregnant women
- under 18
- neurological damage
- HIV positive
- dependence on other drugs such as heroin
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| RisperidoneAlso: Individual and group therapyvariable dose | Drug | Anti-psychotic medication, Counseling |
Primary outcome
Questionnaire ratings of anxiety, depression and psychotic symptoms
Time frame: 4 months
Questionnaire measures of anxiety (Spielberger) Depression (BDI) and psychotic symptoms (PNAAS) will be used at baseline, during treatment and follow up at 4 months
1 secondary outcome
Dopamaine receptor D2 occupancy
Time frame: At baseline and after 4 months
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Jan 2012.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Michal Roll, Ph.D study director
Sourasky Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Risperidone in people with Cannabis Dependence and Psychostimulant Dependence, run by Tel-Aviv Sourasky Medical Center at 1 site in Israel.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 13 Jan 2012. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Aviv M Weinstein, Ph.D (+97236973536, avivweinstein@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Questionnaire ratings of anxiety, depression and psychotic symptoms (time frame: 4 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jan 2012; AzTrials last refreshed its copy on 8 Nov 2026.