A Cannabis E-intervention for Young Cannabis Users With Early Psychosis (iCC) (iCC)
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|ClinicalTrials.gov Identifier: NCT05310981|
Recruitment Status : Not yet recruiting
First Posted : April 5, 2022
Last Update Posted : April 5, 2022
|Condition or disease||Intervention/treatment||Phase|
|Cannabis Use Disorder||Behavioral: iCanChange||Not Applicable|
This is a multi-site, two-arm, open-label, pilot randomized control trial, involving 100 young adults diagnosed with psychosis and cannabis use disorder (CUD). Participants will be randomly assigned to either:
Arm 1. Early intervention services (EIS): early intervention for psychosis, including standard of care for psychosis and CUD following Canadian guidelines.
Arm 2. iCC + modified EIS (mEIS): The iCC is an application-based intervention that includes psychotherapeutic modules based on Motivational Interviewing (MI) and Cognitive Behavioral Therapy (CBT). Participants in this arm also receive the same services as in EIS, excluding formal psychotherapeutic interventions for CUD.
Participants will complete assessments at baseline, and at 6, 12, and 24 weeks from baseline.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||100 participants|
|Intervention Model:||Parallel Assignment|
|Intervention Model Description:||two-arm parallel, open-labelled, pilot randomized controlled trial|
|Masking:||None (Open Label)|
|Official Title:||A Randomized Pilot Trial of ICanChange, a Mobile Health Intervention to Reduce Cannabis Use in Young Adults With Psychosis|
|Estimated Study Start Date :||March 31, 2022|
|Estimated Primary Completion Date :||March 31, 2024|
|Estimated Study Completion Date :||June 30, 2024|
Experimental: Experimental: CHAMPS and mEIS
Brief mobile application-based psychological intervention based on the principles of motivational interviewing (MI) and cognitive behavioural therapy (CBT). This e-intervention will be completed by the participant using a smart phone. There will be up to a maximum of 24 individual sessions (which includes 3 booster sessions) each lasting approximately 10-15 minutes.
mEIS: iCC will be administered adjunctively to modified EIS (mEIS), which will include all interventions usually provided through EIS except for any specific psychological interventions (MI, CBT, contingency management) for CUD.
iCC is a psychological app based intervention that will be delivered in form of up to 24 brief (10-15 minutes) interactive modules developed based on the principles of Motivational Interviewing (MI) and Cognitive Behavioural Therapy (CBT). During the intervention, participants will be offered MI and CBT-based activities (i.e., modules and strategies) aiming at facilitating change in cannabis use. At any point during the intervention, participants can reference modules that had been completed. Due to the frequency of behavioral stage changes in this population (e.g., regression in behavioral stage of change), stage of change will be monitored regularly throughout the intervention. During the follow-up period (i.e., Week 12-24), participants will have continuous access to the smart phone application and all built-in add-ons as described above. During this period, they will have access to 3 booster session.
No Intervention: No Intervention: EIS alone
Early intervention services will be offered as per standard of care following EIS for psychosis and CUD guidelines, at participating clinical sites. Any visits and services offered in control arm will be considered 'usual care' and administered either through in-person clinic visits, community visits, phone calls, or video calls. Relevant service information will be collected for study purposes.
- Completion rates [ Time Frame: Week 12 ]Number of participants who completed the first section of the intervention and at least one module from section 2 related to achieving their cannabis consumption objectives or with ongoing participation in EIS.
- Retention rates [ Time Frame: Week 12 ]Proportions of participants retained in the trial (completing all endpoint assessments)
- Acceptability (iCC usage data) [ Time Frame: Weeks 0-24 ]Number of iCC modules completed, time spent on each module, time elapsed between module initiation and completion, total time spent on iCC.
- Participant satisfaction [ Time Frame: Weeks 6, 12 & 24 ]Score on the Client Satisfaction Questionnaire-I (CSQ-I). The CSQ-I is a modified version of the CSQ-8 measuring global satisfaction with a web-based intervention and and provider reports. Items are scored from 1= "does not apply to me" to 4= "Does totally apply to me". The scores for all eight items will be summed for a total score in the range 8 to 32. To calculate scores on the CSQ-I, sum item responses (range from 8-32). Higher scores indicate higher satisfaction. This collects information on the participant's satisfaction as it relates to the assigned cannabis-focused intervention.
- Trial parameters [ Time Frame: Week -4 to Week 24 ]Numbers of participants who are referred, screened, eligible, consenting, randomized, initiating and completing the study
- Cannabis Use [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Frequency and quantity of cannabis use in the last 14 days will be measured using the Timeline Follow Back (TLFB) which is a tool that captures self-reported drug use. The TLFB will assess the frequency of cannabis use, the self-reported days with abstinence from cannabis weekly, as well as type of cannabis products, quantity and dose/concentration in cannabinoids.
- Psychotic Symptoms [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Positive and negative symptoms of psychosis (e.g., schizophrenia) will be measured by trained staff with Positive Negative Syndrome Scale (PANSS-6) that has been recently validated in individuals with schizophrenia and shows similar psychometric properties to PANSS-30. PANSS-6 is an interviewer-administered scale, each item is scored from 1-7 based on the presence and severity of symptoms (1=absent, 2=minimal, 3=mild, 4=moderate, 5=moderate severe, 6=severe, 7=extreme). A total score of 6 reveals no psychotic symptoms and a total score of <14 is considered the cut-off for remission
- Cannabis-related problems [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Cannabis-related physical, psychological, social, and functioning problems will be assessed with the Marijuana Problems Scale (MPS), which is a 19-item self-report instrument that measures change in problems related to cannabis use over time. The scale contains 19 items that represent potential negative effects of marijuana on social relationships, self-esteem, motivation and productivity, work and finances, physical health, memory impairment, and legal problems. For each item, the participant reports problems related to cannabis use in the last month by choosing one of the following three options: 0=not a problem, 1=a minor problem, 2=a serious problem. A total score is calculated, and higher scores indicate more serious problems with cannabis use.
- Cannabis use frequency and abstinence [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]The frequency of cannabis use (number of days in the previous 14 days weeks) and rates of point prevalence for cannabis abstinence will be assessed with the Timeline Followback (TLFB). The TLFB is a tool that captures self-reported drug use. The TLFB will assess the frequency of cannabis use, the self-reported days with abstinence from cannabis weekly, as well as type of cannabis products, quantity and dose/concentration in cannabinoids.
- Other drug use [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Past two weeks other drug use according to the Timeline Follow-Back Questionnaire (TLFB) which is a tool that captures self-reported drug use in the past 14 days. The TLFB will assess the frequency of drug use, and capture self-reported days with abstinence from substance use.
- Dependence severity [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Severity of cannabis dependence will be measured with the self-administered, the Severity of Dependence Scale (SDS). The SDS contains five items that measure the psychological components of dependence including control over cannabis use, anxiety over missing a dose, worry related to use, desire to stop and difficulties related to stopping using cannabis. Each item is score on a four-point scale (0=never/almost never, 1=sometimes, 2=often, 3=always/nearly always). A total score is calculated, and higher scores indicate higher levels of dependence.
- Protective behaviours [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Measured with the self-administered 17-item Protective Behavioral Strategies-Marijuana (PBSM) questionnaire. The PBSM will be used to measure cannabis-related harms in the last 30 days by asking participants to rate on a six-point scale their behaviors (e.g., Avoid using before work or school) related to cannabis use (1=never, 2=rarely, 3=occasionally, 4=sometimes, 5=usually and 6=always). Mean scores will be calculated with higher scores indicating higher risk behaviors.
- Confidence in resisting cannabis use [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Participant confidence in resisting cannabis use will be measured using the Drug-Taking Confidence Questionnaire (DTCQ), which is an 8-item instrument that has shown reliability and validity in measuring coping self-efficacy. Participants will rate on a 6-point scale (0= not at all confident, 20=20% confident, 40=40%, 60=60% confident, 80=80% confident; and 100=very confident) their confidence to resist cannabis use (i.e., "I would be able to resist the urge to use cannabis…" in 8 different situations e.g. "…. If other people treated me unfairly or interfered with my plans". Participant's confidence in his/her ability to resist cannabis use will be evaluated by calculating a mean score e.g., a confidence score between 0% to 20% reflects little or no confidence at all.
- Life satisfaction [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]The impact of psychosis and CUD on participants' life, we will be measured using the Satisfaction with Life questionnaire (SWL), which is a self-report, 18-item scale that has been validated in participants with schizophrenia and schizophrenia-related disorders. The SWL assesses individual's satisfaction with life pertaining to four domains: living situation (4 items, e.g., "How much do you like the place where you live?"), social relationships (6 items, e.g., How satisfied are you with the number of friends you have?"), work (2 items, e.g., "How satisfied are you with the kind of work that you do?") and self and present life (6 items, e.g., "How satisfied are you with yourself on the whole?"). Items are measured on a five-point Likert scale from "not at all satisfied" to "very satisfied". For each domain a mean score is calculated, and higher scores are indicative of greater satisfaction.
- Healthcare utilization [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]Health service utilization information including number of days of hospitalizations and number of emergency visits in the past 30 days will be collected via self-report from the participant and can be confirmed as needed through the patient medical record abstraction and contact with the case manager.
- Stage of change [ Time Frame: (-2-0 (baseline) and Week 6, 12 & 24 ]To capture participants' decision stage of change related to decreasing or stopping cannabis abstinence, we will use the Precaution Adoption Model (PAPM). The PAPM consists of 7 distinct stages of health decision-making: 1) unaware of the health behavior, 2) unengaged in the decision, 3) undecided, 4) decided not to act, 5) decided to act, 6) acting and 7) maintenance. Participants will select one of 6 response options corresponding to PAPM stages 2 to 7: "At this moment, I have not thought about decreasing or stopping using cannabis", "At this moment, I am undecided about decreasing or stopping using cannabis", At this moment I do not want to decrease or stop using cannabis", "At this moment I do want to decrease or stop using cannabis", "I have recently decreased or stopped using cannabis" and "I decreased or stopped using cannabis more than one month ago".
- Social support [ Time Frame: (-2-0 (baseline) ]The availability of social support will be measured with the short form of the Social Provisions Scale (SPS-10) that consists of 2 items per dimension of support (i.e., emotional support or attachment, social integration, reassurance of worth, tangible help, orientation) for a total of 10 items. Items are measured on a four-point Likert scale from "1-totally disagree" to "4-totally agree" and a total score will be calculated. A continuous scale score is computed by summing responses to the 10 questions, with values ranging from 10 to 40. The SPS-10 summary score is not computed for respondents with data missing on any items. Higher scores can be interpreted as having higher levels of social support.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05310981
|Contact: Jill Fikowski, MPHfirstname.lastname@example.org|
|Contact: Pamela Lachance Touchette, PhDemail@example.com|
|Foothills Medical Centre Early Psychosis Intervention Program|
|Calgary, Alberta, Canada, T2N2T9|
|Principal Investigator: David Crockford, MD|
|Canada, Nova Scotia|
|Nova Scotia Early Psychosis Program|
|Halifax, Nova Scotia, Canada, B3H2E2|
|Principal Investigator: Phil Tibbo, MD|
|Clinic Connec-T - Institut universitaire en santé mentale de Montréal|
|Montréal, Quebec, Canada, H1N3M5|
|Principal Investigator: Tania Lecomte, PhD|
|Clinique JAP, Centre hospitalier de l'Université de Montréal|
|Montréal, Quebec, Canada, H2X 3E4|
|Principal Investigator: Amal Abdel-Baki, MD|
|Clinic Notre-Dame des Victoires - Centre de Recherche CERVO|
|Québec, Quebec, Canada, G1J2G3|
|Principal Investigator: Marc-André Roy, MD|
|Principal Investigator:||Didier Jutras-Aswad, MD, MSc||Centre hospitalier de l'Université de Montréal (CHUM)|