ClinicalTrials.gg
Status unknownNCT04513756LifecareUpdated Jul 21, 2021

Efficacy of Community Reinforcement Approach (CRA) in the Treatment of Cannabis Users

An interventional study of Community Reinforcement Approach in Cannabis Dependence, sponsored by International Islamic University, Islamabad. Status unknown at 2 sites in Pakistan. Open to participants aged 18 Years to 30 Years. Per ClinicalTrials.gov, last updated 2021-07-21.

Primary conditionMarijuana Abuse(the registry's first term)UnverifiedIs this wrong?The registry often attaches Marijuana Abuse to studies about something else, and this study's title and listed conditions do not name it. No better condition is named, so the registry's term is kept.

Sponsored by International Islamic University, Islamabad · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jul 2021), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 11 months after the study started (first participant enrolled Aug 2019, registered Aug 2020).
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years to 30 Years
Sex
All
01

Study summary

Substance abuse is not a new phenomenon in Pakistan. Its prevalence is increasing day by day due to multi-factorial reasons including psychological, cultural, biological, environmental, social and personal factors. Recent statistics shows an alarming increase in the use of substance. The last survey conducted indicates there are 3.6 million substance users in Pakistan and 3.6 percent among them are cannabis users. Furthermore, cannabis is found to be the most prevalent abused drug with adverse impact on the mental health among university students in Pakistan. However, there is a dearth of literature which could indicate a well-established treatment policy with proven efficacy model available in Pakistan. This study aims to investigate the efficacy of Community Reinforcement Approach (CRA) as evidence based remedy for Cannabis Users. The study is designed in a Randomized Controlled Trial (RCT) consisting of groups: Active Treatment (AT; with nine sessions of CRA intervention) and Treatment as Usual (TAU; routine treatment). After screening and baseline, participants will be assigned to the either Active Treatment group or Treatment As Usual group. Participants in both groups will be assessed on completion of third month after randomization (Outcome assessment), six months after randomization (first follow-up), and finally ninth months after randomization (second follow up). The primary outcome measure will be the frequency of usage, abstinence period and quantity of cannabis by using Timeline Follow Back Interview. The duration of the study is two and half years

02

Conditions studied

  • Cannabis Dependence

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03

In context

Marijuana Abuse Unverified

188 studies on the registry are indexed under Marijuana Abuse; 26 are open to participants now.

This study's planned enrollment of 120 is above the median of 51 across 160 interventional studies indexed under Marijuana Abuse.

Browse Marijuana Abuse studies →

Lead sponsor

International Islamic University, Islamabad is the lead sponsor of 10 studies on the registry; 1 is open to participants now.

Compared within Marijuana Abuse, the registry's first condition term, which may not be this study's main condition. Counted across the registry records on this site, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 30 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Aged 18-30.
  2. Current, regular cannabis use, defined as the use of any cannabis product at least twice per week over the course of the past 12 months.
  3. Participant able to provide and willing to participate in the study.

Exclusion criteria

Exclusion Criteria:

  1. ICD-11 dependence (in the previous 12 months) on alcohol or any other illicit drug (apart from cannabis) with symptoms of withdrawal, tolerance or craving.
  2. Current use of opiate substitution or sedative-hypnotic medication.
  3. Having been treated for cannabis use problems with any other treatment within the previous three months.
  4. Participant with lifetime psychotic disorder.
  5. Participants with moderate, severe and extremely severe scores on (DASS-21) will be excluded. Severe learning disability or a pervasive developmental disorder.
  6. Signs of severe non-cannabis-related intoxication.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

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05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
120 participants (estimated)

Study arms

  • Experimental
    Active Treatment Group

    Community Reinforcement Approach (CRA) as an intervention consisting of nine sessions (each session consists of 45-minutes). Treatment is primarily based upon the guidelines by Robert Meyers and William Miller (2001). The techniques included in the sessions are functional analysis, sobriety sampling, behavioral skills, and relapse prevention techniques.

    Behavioral: Community Reinforcement Approach

  • No intervention
    Treatment As Usual Group

    CRA comprising of nine sessions will not be provided to this group. However, patients who will be already receiving treatment from any psychiatric or some other rehabilitation facility will be advised to continue their routine treatment.

Interventions

  • BehavioralCommunity Reinforcement Approach

    Community Reinforcement Approach (CRA) as an intervention consisting of nine sessions (each session consists of 45-minutes). Treatment is primarily based upon the guidelines by Robert Meyers and William Miller (2001). The techniques included in the sessions are functional analysis, sobriety sampling, behavioral skills, and relapse prevention techniques. The first three sessions of the intervention are based upon rapport building, induction of the rationale of CRA and Functional analysis of usage and non-usage behavior.

06

What researchers measure

Primary outcomes

  1. Time Line Follow-Back Interview (Assessing Change)

    In order to gather additional information about the frequency, patterns, mode and quantity of cannabis use, we will use the Time Line Follow-Back Interview (TLFB; Sobell \& Sobell, 1992) as modified by the Marijuana Treatment Project Research Group, 2004, at baseline, prior to each therapy session, at post-treatment as well as at the follow-up assessments.

    Time frame: Participants in both groups will be assessed on baseline, completion of third month after randomization (Outcome assessment), six months after randomization (first follow-up), and finally ninth months after randomization (second follow up).

  2. The Severity of Dependence Scale (Assessing Change)

    The Severity of Dependence Scale (SDS; Gossop, Darke, Griffiths, Hando, Powis, Hall, \& Strang, 1995) will used to measure the degree of physical dependence the cannabis users experienced as well as the psychological components of their dependence. The scale will be used both at the time of screening and follow-ups.

    Time frame: Participants in both groups will be assessed on baseline, completion of third month after randomization (Outcome assessment), six months after randomization (first follow-up), and finally ninth months after randomization (second follow up).

Secondary outcomes

  1. Depression Stress and Anxiety Questionnaire

    Depression Stress and Anxiety Questionnaire (Lovibond \& Lovibond, 1995) will be used to measure depression, anxiety and stress in the participants. It is 21 item scales with 4 point rating (0-3). This scale will be used at the time of screening and follow-ups. Participants score falling in the category of severe to extremely severe will be excluded from the research at the time of screening.

    Time frame: Participants in both groups will be assessed on baseline, completion of third month after randomization (Outcome assessment), six months after randomization (first follow-up), and finally ninth months after randomization (second follow up).

  2. EQ-5D-5L

    EQ-5D-5L (EuroQol, 1990) will be used to measure participant's health related quality of life across five domains i.e. mobility, self-care, usual activities, pain/discomfort and anxiety/depression on 5 levels. It also include visual analogue scale on which patient has report perceived health status on 0-100 grading.

    Time frame: Participants in both groups will be assessed on baseline, completion of third month after randomization (Outcome assessment), six months after randomization (first follow-up), and finally ninth months after randomization (second follow up).

07

Study locations

2 sites
  • Psychological Services Clinic, Medical Center, International Islamic University
    Islamabad, Federal Capital 44000, Pakistan
  • Research Office, Department of Psychology, International Islamic University Islamabad
    Islamabad, Federal 46000, Pakistan
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 21, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04513756
Lead sponsor
International Islamic University, Islamabad
Collaborators
Pakistan Institute of Living and Learning
Responsible party
Muhammad Tahir Khalily (Professor of Clinical Psychology, International Islamic University, Islamabad) — Principal investigator
First posted
Aug 14, 2020
Start date
Aug 18, 2019
Primary completion
Jul 30, 2021 (estimated)
Completion
Dec 21, 2021 (estimated)
Last update
Jul 21, 2021

Study contacts

Muhammad Tahir Khalily, PhD
principal investigator · International Islamic University, Islamabad

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jul 2021. You cannot join it, but the record below documents what was studied.

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