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1.
Can J Psychiatry ; : 7067437241242395, 2024 Apr 04.
Artículo en Inglés | MEDLINE | ID: mdl-38571478

RESUMEN

OBJECTIVES: Cannabis use is common in people with early-phase psychosis (EP) and is associated with worse treatment outcomes. Few targeted interventions for cannabis use behaviour in this population exist, most focusing on abstinence, none focusing on harm reduction. Many people with EP will not seek treatment for their cannabis use with current therapeutic options. Understanding preferences for cannabis-focused harm reduction interventions may be key to improving outcomes. This study aimed to determine preferences of young adults with EP who use cannabis for cannabis-focused harm reduction interventions. METHODS: Eighty-nine young adults across Canada with EP interested in reducing cannabis-related harms were recruited. An online questionnaire combining conventional survey methodology and two unique discrete choice experiments (DCEs) was administered. One DCE focused on attributes of core harm reduction interventions (DCE 1) and the second on attributes of boosters (DCE 2). We analysed these using mixed ranked-ordered logistic regression models. Preference questions using conventional survey methodology were analysed using summary statistics. RESULTS: Preferred characteristics for cannabis-focused harm reduction interventions (DCE 1) were: shorter sessions (60 min vs. 10 min, odds ratio (OR): 0.72; P < 0.001); less frequent sessions (daily vs. monthly, OR: 0.68; P < 0.001); shorter interventions (3 months vs. 1 month, OR: 0.80; P < 0.01); technology-based interventions (vs. in-person, OR: 1.17; P < 0.05). Preferences for post-intervention boosters (DCE 2) included opting into boosters (vs. opting out, OR: 3.53; P < 0.001) and having shorter boosters (3 months vs. 1 month, OR: 0.79; P < 0.01). Nearly half of the participants preferred to reduce cannabis use as a principal intervention goal (vs. using in less harmful ways or avoiding risky situations). CONCLUSIONS: Further research is required to see if technology-based harm reduction interventions for cannabis featuring these preferences translate into greater engagement and improved outcomes in EP patients.

3.
JMIR Res Protoc ; 12: e53094, 2023 Dec 18.
Artículo en Inglés | MEDLINE | ID: mdl-38109196

RESUMEN

BACKGROUND: Cannabis use is highly prevalent in young people with first-episode psychosis (FEP). Most report cannabis use and are often diagnosed with a cannabis use disorder upon admission to specialized services for psychosis. Cannabis use in this population is associated with worse clinical and psychosocial outcomes, rendering it an important clinical target. Despite this, few cannabis-specific interventions have been developed for FEP and empirically evaluated through randomized controlled trials. Most evaluated interventions have targeted cannabis abstinence, with limited efficacy, but none have centered on harm reduction outcomes for people with FEP who use cannabis. Early intervention services (EIS), the standard of care for FEP, have not successfully addressed problematic cannabis use in people with FEP either. Clinical trials are needed to explore the potential of harm reduction strategies, although these should be preceded by robust pilot studies to establish optimal design and approaches. OBJECTIVE: Recognizing the need for harm reduction strategies for individuals with FEP who use cannabis and based on research on patients' preferences supporting harm reduction interventions, we developed a mobile app-based cannabis harm reduction intervention for this population. This intervention is called Cannabis Harm-reducing Application to Manage Practices Safely (CHAMPS). Here, we describe the protocol for a multicenter, 2-arm, parallel group, randomized pilot trial evaluating the acceptability of CHAMPS for people with FEP who use cannabis and the feasibility of conducting a full-scale trial in this population using CHAMPS. The impact on key clinical outcomes will also be explored. METHODS: This pilot trial aims to recruit 100 young people with FEP using cannabis from 6 Canadian EIS clinics. Participants will be randomized in a 1:1 ratio to CHAMPS+EIS or EIS-only. CHAMPS acceptability will be assessed using completion rates for the intervention arm. Trial feasibility will be assessed using a retention rate for randomized participants. Secondary outcomes will explore tendencies of change in the use of protective behavioral strategies and in motivation to change strategies. Exploratory outcomes include cannabis use-related problems, other substance use, the severity of dependence, psychotic symptoms, and health care service use. RESULTS: Recruitment began in December 2021. Data collection and analysis are expected to be completed in early 2024. Study results describing CHAMPS acceptability and trial feasibility will then be submitted for publication in a peer-reviewed journal. CONCLUSIONS: CHAMPS uniquely combines evidence-based approaches, patient perspectives, and mobile health technology to support harm reduction in people with FEP who use cannabis. Attaining adequate acceptability and feasibility through this trial may justify further exploration of harm reduction tools, particularly within the context of conducting a larger-scale randomized controlled trial. This pilot trial has the potential to advance knowledge for researchers and clinicians regarding a feasible and user-acceptable research design in the cannabis and early psychosis fields. TRIAL REGISTRATION: ClinicalTrials.gov NCT04968275, https://clinicaltrials.gov/ct2/show/NCT04968275. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/53094.

4.
Psychiatry Res ; 326: 115276, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37301021

RESUMEN

Innovative technology-based solutions have the potential to improve access to clinically proven interventions for cannabis use disorder (CUD) in individuals with first episode psychosis (FEP). High patient engagement with app-based interventions is critical for achieving optimal outcomes. 104 individuals 18 to 35 years old with FEP and CUD from three Canadian provinces completed an electronic survey to evaluate preferences for online psychological intervention intensity, participation autonomy, feedback related to cannabis use, and technology platforms and app functionalities. The development of the questionnaire was informed by a qualitative study that included patients and clinicians. We used Best-Worst Scaling (BWS) and item ranking methodologies to measure preferences. Conditional logistic regression models for BWS data revealed high preferences for moderate intervention intensity (e.g., modules with a length of 15 min) and treatment autonomy that included preferences for using technology-based interventions and receiving feedback related to cannabis use once a week. Luce regression models for rank items revealed high preferences for smartphone-based apps, video intervention components, and having access to synchronous communications with clinicians and gamification elements. Results informed the development of iCanChange (iCC), a smartphone-based intervention for the treatment of CUD in individuals with FEP that is undergoing clinical testing.


Asunto(s)
Cannabis , Alucinógenos , Aplicaciones Móviles , Trastornos Psicóticos , Humanos , Adulto Joven , Adolescente , Adulto , Intervención Psicosocial , Canadá , Trastornos Psicóticos/terapia , Trastornos Psicóticos/psicología
5.
JMIR Res Protoc ; 11(11): e40817, 2022 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-36427227

RESUMEN

BACKGROUND: Cannabis use is the most prevalent among adolescents and young adults; frequent consumption is associated with cannabis use disorder (CUD) and psychosis, with a high prevalence (up to 50%) of CUD in individuals with first-episode psychosis (FEP). Early Intervention Services (EIS) for psychosis include face-to-face psychosocial interventions for CUD, because reducing or discontinuing cannabis use improves clinical and health care service use outcomes. However, multiple barriers (eg, staff availability and limited access to treatment) can hinder the implementation of these interventions. Mobile health (mHealth) interventions may help circumvent some of these barriers; however, to date, no study has evaluated the effects of mHealth psychological interventions for CUD in individuals with FEP. OBJECTIVE: This study describes the protocol for a pilot randomized controlled trial using a novel mHealth psychological intervention (iCanChange [iCC]) to address CUD in young adults with FEP. iCC was developed based on clinical evidence showing that in individuals without psychosis, integrating the principles of cognitive behavioral therapy, motivational interviewing, and behavioral self-management approaches are effective in improving cannabis use-related outcomes. METHODS: Consenting individuals (n=100) meeting the inclusion criteria (eg, aged 18-35 years with FEP and CUD) will be randomly allocated in a 1:1 ratio to the intervention (iCC+modified EIS) or control (EIS) group. The iCC is fully automatized and contains 21 modules that are completed over a 12-week period and 3 booster modules available during the 3-month follow-up period. Validated self-report measures will be taken via in-person assessments at baseline and at 6, 12 (end point), and 24 weeks (end of trial); iCC use data will be collected directly from the mobile app. Primary outcomes are intervention completion and trial retention rates, and secondary outcomes are cannabis use quantity, participant satisfaction, app use, and trial recruiting parameters. Exploratory outcomes include severity of psychotic symptoms and CUD severity. For primary outcomes, we will use the chi-square test using data collected at week 12. We will consider participation in iCC acceptable if ≥50% of the participants complete at least 11 out of 21 intervention modules and the trial feasible if attrition does not reach 50%. We will use analysis of covariance and mixed-effects models for secondary outcomes and generalized estimating equation multivariable analyses for exploratory outcomes. RESULTS: Recruitment began in July 2022, and data collection is anticipated to be completed in July 2024. The main results are expected to be submitted for publication in 2024. We will engage patient partners and other stakeholders in creating a multifaceted knowledge translation plan to reach a diverse audience. CONCLUSIONS: If feasible, this study will provide essential data for a larger-scale efficacy trial of iCC on cannabis use outcomes in individuals with FEP and CUD. TRIAL REGISTRATION: ClinicalTrials.gov NCT05310981; https://www.clinicaltrials.gov/ct2/show/NCT05310981. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/40817.

6.
Early Interv Psychiatry ; 16(8): 862-867, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-34626091

RESUMEN

AIM: To explore the impacts of the COVID-19 pandemic first wave in Quebec, Canada on practices in early intervention services (EIS) for first-episode psychosis, including reorganization of clinical and administrative practices and teleconsultation use. METHODS: Adopting a cross-sectional descriptive study design, a 41 questions online survey was sent to the team leaders of all the 33 Quebec EIS, of which 100% responded. Data were collected from 18 May to 4 June 2020 and analysed using descriptive statistics and content analysis. Programmes were categorized as urban/non-urban and results were compared between these. RESULTS: All 33 existing Quebec EIS (16 urban and 17 non-urban) completed the survey. Among them, 85% did not experience redeployment of EIS team staff and 58% reported stable frequency of patient interactions, either in-person or through telemedicine. During the studied period, 64% of programmes reported that all professionals used teleconsultation at least occasionally. However, 73% of programmes, mostly in non-urban areas, reported some limitations regarding clinicians' degree of ease with teleconferencing platforms and half of EIS could not access technical support to use them. The majority of EIS (94%) expressed interest to participate in a training program about the use of technologies for teleconsultations. Many smaller clinics reported interest in offering multiregional/multiclinics group teletherapy, therefore merging their pool of patients and clinical staff workforce. CONCLUSIONS: Further studies are warranted to improve access to and use of technology-mediated treatment, which seems to be a promising alternative to provide high-quality mental healthcare during the COVID-19 pandemic and beyond.


Asunto(s)
COVID-19 , Trastornos Psicóticos , Telemedicina , COVID-19/epidemiología , Estudios Transversales , Humanos , Pandemias , Trastornos Psicóticos/epidemiología , Trastornos Psicóticos/terapia , Quebec/epidemiología
7.
Early Interv Psychiatry ; 9(2): 151-5, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24690066

RESUMEN

AIM: Our case report addresses the use of clozapine in patients who have a history of quetiapine XR-induced neutropenia. There are no current guidelines for this situation. METHODS: We present the case of a young woman treated with clozapine at a first-episode psychosis clinic after a moderate quetiapine XR-induced neutropenia (0,5-1,0 × 10(9) L(-1) ). RESULTS: The patient was successfully treated with clozapine and lithium, with less psychotic symptoms and a better level of functioning. The neutrophil count remained normal during the treatment period, which has been longer than a year. CONCLUSION: The outcome of this case supports the notion that clinicians could consider introducing clozapine in treatment-refractory patients who have a history of quetiapine XR-induced neutropenia, with close blood monitoring. Lithium co-administration may play a role in maintaining a normal neutrophil count.


Asunto(s)
Clozapina/uso terapéutico , Resistencia a Medicamentos , Neutropenia/inducido químicamente , Neutrófilos , Fumarato de Quetiapina/efectos adversos , Esquizofrenia/tratamiento farmacológico , Antipsicóticos/efectos adversos , Antipsicóticos/uso terapéutico , Preparaciones de Acción Retardada/administración & dosificación , Preparaciones de Acción Retardada/efectos adversos , Femenino , Humanos , Recuento de Leucocitos , Fumarato de Quetiapina/administración & dosificación , Esquizofrenia/sangre , Adulto Joven
8.
Sante Ment Que ; 32(1): 299-315, 2007.
Artículo en Francés | MEDLINE | ID: mdl-18253673

RESUMEN

June 2004: the Quebec association of early psychosis programs, AQPPEP (Association québécoise des programmes pour premiers épisodes psychotiques), was created. The Association's objectives is to promote clinical and scientific discussions between health care professionals and researchers sharing an interest for people suffering from an early psychosis, and to improve earlier detection of psychosis. It also aims at increasing awareness of the problem in the general population and governments. To reach these goals, AQPPEP has organized the first early psychosis awareness day in Quebec and developed one of the rare French language web sites in this area. Finally, the Association is a tool to better face, in a concerted approach, some difficulties that many first episode clinics have to deal with, in order to share or develop common solutions.


Asunto(s)
Trastornos Psicóticos/diagnóstico , Trastornos Psicóticos/terapia , Sociedades Médicas , Diagnóstico Precoz , Humanos , Quebec , Sociedades Médicas/organización & administración
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