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BACKGROUND/OBJECTIVES: There is a great unmet need for accessible adjunctive interventions to promote long-term recovery from substance use disorder (SUD). This study aimed to iteratively develop and test the initial feasibility and acceptability of Mindful Journey, a novel digital mindfulness-based intervention for promoting recovery among individuals with SUD. PATIENTS/MATERIALS: Ten adults receiving outpatient treatment for SUD. METHODS: Phase 1 (n = 5) involved developing and testing a single introductory digital lesson. Phase 2 included a separate sample (n = 5) and involved testing all 15 digital lessons (each 30- to 45-minutes) over a 6-week period, while also receiving weekly brief phone coaching for motivational/technical support. RESULTS: Across both phases, quantitative ratings (rated on a 5-point scale) were all at or above a 4 (corresponding with 'agree') for key acceptability dimensions, such as usability, understandability, appeal of visual content, how engaging the content was, and helpfulness for recovery. Additionally, in both phases, qualitative feedback indicated that participants particularly appreciated the BOAT (Breath, Observe, Accept, Take a Moment) tool for breaking down mindfulness into steps. Qualitative feedback was used to iteratively refine the intervention. For example, based on feedback, we added a second core mindfulness tool, the SOAK (Stop, Observe, Appreciate, Keep Curious), and we added more example clients and group therapy videos. In Phase 2, 4 out of 5 participants completed all 15 lessons, providing initial evidence of feasibility. Participants reported that the phone coaching motivated them to use the app. The final version of Mindful Journey was a smartphone app with additional features, including brief on-the-go audio exercises and a library of mindfulness practices. Although, participants used these additional features infrequently. CONCLUSIONS: Based on promising initial findings, future acceptability and feasibility testing in a larger sample is warranted. Future versions might include push notifications to facilitate engagement in the additional app features.
Assuntos
Atenção Plena , Aplicativos Móveis , Transtornos Relacionados ao Uso de Substâncias , Adulto , Humanos , Atenção Plena/métodos , Transtornos Relacionados ao Uso de Substâncias/terapia , Motivação , Assistência AmbulatorialRESUMO
OBJECTIVE: Craving predicts smoking, yet existing interventions may not adequately target regulation of craving. We evaluated two versions of regulation of craving-training (ROC-T), a computerized intervention with intensive practice of strategies when exposed to smoking-related images. METHOD: Ninety-two nicotine-dependent daily smokers were randomized to mindfulness-based therapy (MBT) ROC-T focusing on mindful acceptance, and cognitive behavioral therapy (CBT) ROC-T focusing on reappraisal or no intervention control. The ROC task was administered pre- and postintervention to assess changes in cue-induced craving and mindfulness- and reappraisal-based regulation of craving. RESULTS: MBT and CBT-versus control-showed significantly greater reductions in smoking during the intervention phase (baseline to Week 4), corresponding to large (d = -1.08, 95% CI [-1.64, -0.52]) and medium-to-large effect sizes (d = -0.69, 95% CI [-1.22, -0.15]), respectively. During follow-up (Week 4-16), CBT showed significant increases in smoking, whereas MBT and control did not. For the entire study (baseline to Week 16), MBT showed significantly greater reductions in smoking compared to control (d = -1.6, 95% CI [-2.56, -0.66]) but CBT was not significantly different than control (d = -0.82, 95% CI [-1.77, 0.13]). There were no effects on smoking when directly comparing MBT and CBT. Quit rates were low across the sample, with no difference among conditions. MBT and CBT-versus control-significantly reduced cue-induced craving. CBT (but not MBT)-versus control-significantly improved reappraisal-based regulation of craving. Both MBT and CBT-versus control-significantly improved mindfulness-based regulation of craving. CONCLUSIONS: MBT- and CBT-ROC-T may reduce cue-induced craving and smoking, and MBT may be more durable than CBT. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Atenção Plena , Abandono do Hábito de Fumar , Produtos do Tabaco , Humanos , Fissura/fisiologia , Atenção Plena/métodos , Fumantes , Abandono do Hábito de Fumar/psicologiaRESUMO
Reports from uncontrolled trials and surveys suggest that there are disparities in substance-use outcomes for minoritised racial and ethnic populations, yet few of these disparities have emerged from randomised clinical trials (RCTs). We conducted a systematic review of RCTs published in English of Black or Latinx adults with any non-nicotine substance use disorder that reported rates of treatment initiation, engagement, or substance-use outcome by race or ethnicity. Study quality was assessed by the Joanna Briggs Institute appraisal tool and a Yale internally validated quality assessment. Of the 5204 studies, 50 RCTs met the inclusion criteria, all done in the USA, 24 compared treatment initiation, engagement, or outcome across races or ethnicities and 26 compared these same factors within a race. Few RCTs have reported outcomes specifically for Black or Latinx populations, with nine reporting significant differences by race or ethnicity. Significant differences were found in all studies that evaluated the baseline differences in social determinants. This Review explains the need for optimisation of RCTs to inform the design, delivery, and dissemination of treatment to historically excluded communities.
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Cannabis , Transtornos Relacionados ao Uso de Substâncias , Adulto , Etnicidade , Humanos , Narração , Transtornos Relacionados ao Uso de Substâncias/terapia , Estados UnidosRESUMO
Although many studies have examined religiosity as a protective factor for substance use, few have considered its relationship to treatment outcomes among Latinx adults. Using data from 89 individuals participating in a randomized clinical trial evaluating a culturally adapted Spanish-language version of web-based cognitive behavioral therapy (CBT4CBT-Spanish) for substance use, we evaluated the relationship between religiosity, as measured by the Religious Background and Behavior questionnaire, and treatment outcomes. Overall, there were few significant correlations between religiosity scores and treatment outcomes. Past-year religiosity was positively correlated with one measure of abstinence for those randomized to CBT4CBT-Spanish, but this did not persist during a six-month follow-up period. Findings suggest that religiosity may be associated with short-term abstinence outcomes among Latinx adults receiving a culturally adapted cognitive behavioral therapy treatment. However, additional research is needed with larger and more heterogenous Latinx populations.
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Terapias Espirituais , Transtornos Relacionados ao Uso de Substâncias , Adulto , Humanos , Religião , Espiritualidade , Transtornos Relacionados ao Uso de Substâncias/psicologia , Transtornos Relacionados ao Uso de Substâncias/terapia , Resultado do TratamentoRESUMO
BACKGROUND: Cannabis use disorder (CUD) is a prevalent and impairing condition, and established psychosocial treatments convey limited efficacy. In light of recent findings supporting the efficacy of N-acetylcysteine (NAC) for CUD in adolescents, the objective of this trial was to evaluate its efficacy in adults. METHODS: In a 12-week double-blind randomized placebo-controlled trial, treatment-seeking adults ages 18-50 with CUD (N=302), enrolled across six National Drug Abuse Treatment Clinical Trials Network-affiliated clinical sites, were randomized in a 1:1 ratio to a 12-week course of NAC 1200mg (n=153) or placebo (n=149) twice daily. All participants received contingency management (CM) and medical management. The primary efficacy measure was the odds of negative urine cannabinoid tests during treatment, compared between NAC and placebo participants. RESULTS: There was not statistically significant evidence that the NAC and placebo groups differed in cannabis abstinence (odds ratio=1.00, 95% confidence interval 0.63-1.59, p=0.984). Overall, 22.3% of urine cannabinoid tests in the NAC group were negative, compared with 22.4% in the placebo group. Many participants were medication non-adherent; exploratory analysis within medication-adherent subgroups revealed no significant differential abstinence outcomes by treatment group. CONCLUSIONS: In contrast with prior findings in adolescents, there is no evidence that NAC 1200mg twice daily plus CM is differentially efficacious for CUD in adults when compared to placebo plus CM. This discrepant finding between adolescents and adults with CUD may have been influenced by differences in development, cannabis use profiles, responses to embedded behavioral treatment, medication adherence, and other factors.
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Acetilcisteína/uso terapêutico , Abuso de Maconha/diagnóstico , Abuso de Maconha/tratamento farmacológico , Adolescente , Adulto , Cannabis , Método Duplo-Cego , Feminino , Sequestradores de Radicais Livres/uso terapêutico , Humanos , Masculino , Abuso de Maconha/psicologia , Fumar Maconha/tratamento farmacológico , Fumar Maconha/psicologia , Adesão à Medicação/psicologia , Sulpirida , Resultado do Tratamento , Adulto JovemRESUMO
Increased understanding of "how" and "for whom" treatment works at the level of the brain has potential to transform addictions treatment through the development of innovative neuroscience-informed interventions. The 2015 Science of Change meeting bridged the fields of neuroscience and psychotherapy research to identify brain mechanisms of behavior change that are "common" across therapies, and "specific" to distinct behavioral interventions. Conceptual models of brain mechanisms underlying effects of Cognitive Behavioral Therapy, mindfulness interventions, and Motivational Interviewing were discussed. Presentations covered methods for integrating neuroimaging into psychotherapy research, and novel analytic approaches. Effects of heavy substance use on the brain, and recovery of brain functioning with sustained abstinence, which may be facilitated by cognitive training, were reviewed. Neuroimaging provides powerful tools for determining brain mechanisms underlying psychotherapy and medication effects, predicting and monitoring outcomes, developing novel interventions that target specific brain circuits, and identifying for whom an intervention will be effective.
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Cannabis use disorders (CUDs) co-occur with anxiety disorders at high rates, presumably because some individuals with anxiety disorders may rely on cannabis to manage anxiety. Motivation enhancement therapy (MET) combined with cognitive-behavioral therapy (CBT) is an efficacious intervention for CUD, yet outcomes are worse for patients with elevated anxiety. The integration of MET-CBT with False Safety Behavior Elimination Treatment (FSET) may be useful with anxious CUD patients, as the use of cannabis to manage anxiety can be targeted as a false safety behavior. Here, we describe the integrated treatment and the successful use of it among two patients-one with CUD and comorbid social anxiety disorder (SAD) and one with CUD and comorbid SAD and generalized anxiety disorder. Data support the feasibility of this integrated treatment as a viable approach to the treatment of CUD and comorbid anxiety disorders. Future controlled trials are now warranted to further evaluate the intervention.
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Despite recent advances in behavioral interventions for cannabis use disorders, effect sizes remain modest, and few individuals achieve long-term abstinence. One strategy to enhance outcomes is the addition of pharmacotherapy to complement behavioral treatment, but to date no efficacious medications targeting cannabis use disorders in adults through large, randomized controlled trials have been identified. The National Institute on Drug Abuse Clinical Trials Network (NIDA CTN) is currently conducting a study to test the efficacy of N-acetylcysteine (NAC) versus placebo (PBO), added to contingency management, for cannabis cessation in adults (ages 18-50). This study was designed to replicate positive findings from a study in cannabis-dependent adolescents that found greater odds of abstinence with NAC compared to PBO. This paper describes the design and implementation of an ongoing 12-week, intent-to-treat, double-blind, randomized, placebo-controlled study with one follow-up visit four weeks post-treatment. Approximately 300 treatment-seeking cannabis-dependent adults will be randomized to NAC or PBO across six study sites in the United States. The primary objective of this 12-week study is to evaluate the efficacy of twice-daily orally-administered NAC (1200 mg) versus matched PBO, added to contingency management, on cannabis abstinence. NAC is among the first medications to demonstrate increased odds of abstinence in a randomized controlled study among cannabis users in any age group. The current study will assess the cannabis cessation efficacy of NAC combined with a behavioral intervention in adults, providing a novel and timely contribution to the evidence base for the treatment of cannabis use disorders.
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Acetilcisteína/uso terapêutico , Abuso de Maconha/tratamento farmacológico , Projetos de Pesquisa , Acetilcisteína/administração & dosagem , Acetilcisteína/efeitos adversos , Adolescente , Adulto , Método Duplo-Cego , Feminino , Testes Genéticos , Humanos , Masculino , Abuso de Maconha/epidemiologia , Abuso de Maconha/genética , Pessoa de Meia-Idade , National Institute on Drug Abuse (U.S.) , Fumar/epidemiologia , Estados Unidos , Adulto JovemRESUMO
OBJECTIVES: Effective and safe pain management interventions in methadone maintenance treatment are needed. METHODS: We examined the feasibility (ie, single-session attendance) and acceptability (ie, patient satisfaction and booster session attendance) of cognitive-behavioral therapy-informed groups for pain management-Coping With Pain, Relaxation Training, Group Singing, and Mindful Walking. Pre- and postsession measures were collected. RESULTS: A total of 349 (out of a census of approximately 800) methadone-maintained patients attended at least 1 of the groups. Group satisfaction was high. Booster session attendance was numerically lower in Mindful Walking (14%) than in the other groups (at least 40%). Repeat attendance at Coping With Pain was associated with reduced characteristic pain intensity and depression, whereas repeat attendance at Relaxation Training was associated with decreased anxiety. CONCLUSIONS: Coping With Pain, Relaxation Training, and Group Singing are transportable, affordable, adaptable, and tolerated well by patients with pain and show promise as components of a multimodal pain management approach in methadone maintenance treatment.
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Metadona/uso terapêutico , Entorpecentes/uso terapêutico , Tratamento de Substituição de Opiáceos , Manejo da Dor/métodos , Adulto , Terapia Cognitivo-Comportamental , Estudos de Viabilidade , Feminino , Humanos , Masculino , Tratamento de Substituição de Opiáceos/métodos , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Satisfação do Paciente , Terapia de RelaxamentoRESUMO
BACKGROUND: Cannabis is widely abused, and efficacies of therapeutics for cannabis dependence remain suboptimal. Magnetic resonance imaging (MRI) may aid in the identification of biological markers for successful treatment outcomes (i.e., abstinence). METHODS: Twenty men with cannabis dependence and twenty non-substance-using healthy comparison (HC) men underwent MRI scanning. Cannabis-dependent individuals then participated in a 12-week randomized clinical trial of behavioral treatments (contingency management (CM), cognitive behavioral therapy (CBT) or both). Pretreatment functional and structural data were compared between the cannabis-dependent and HC participants. In addition, individuals with cannabis dependence were subdivided based on the successful achievement of 21 days of consecutive abstinence during treatment to assess whether abstinent versus non-abstinent cannabis-dependent participants displayed different pretreatment functional and structural characteristics when compared to HC participants. RESULTS: In comparison to HC participants, cannabis-dependent participants demonstrated greater ventral striatal activation during the receipt of losing outcomes and smaller putamenal volumes. Cannabis-dependent participants who did not subsequently achieve 21 days of consecutive abstinence had increased activity within the striatum during the receipt of losing outcomes, relative to HC participants. Cannabis-dependent participants who did not achieve 21 days of abstinence had decreased bilateral putamen volumes prior to treatment, relative to HC participants. CONCLUSIONS: Individual differences in pretreatment striatal function and structure may relate to individual differences in treatment responses for cannabis dependence. While mechanisms underlying these associations require further exploration, the striatum might mediate treatment responses via its role in associative reward-learning (e.g., through skills training in CBT or reinforcement of abstinence in CM).
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Encéfalo/patologia , Terapia Cognitivo-Comportamental , Abuso de Maconha/patologia , Abuso de Maconha/terapia , Recompensa , Adulto , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Abuso de Maconha/psicologia , Desempenho Psicomotor/fisiologia , Tempo de Reação/fisiologia , Síndrome de Abstinência a Substâncias/patologia , Síndrome de Abstinência a Substâncias/psicologia , Síndrome de Abstinência a Substâncias/terapia , Adulto JovemRESUMO
Cannabis is among the most frequently abused substances in the United States. Cognitive control is a contributory factor in the maintenance of substance-use disorders and may relate to treatment response. Therefore, we assessed whether cognitive-control-related neural activity before treatment differs between treatment-seeking cannabis-dependent and healthy individuals and relates to cannabis-abstinence measures during treatment and 1-year follow-up. Cannabis-dependent males (N=20) completed a functional magnetic resonance imaging (fMRI) cognitive-control (Stroop) task before a 12-week randomized controlled trial of cognitive-behavioral therapy and/or contingency management. A healthy-comparison group (N=20) also completed the fMRI task. Cannabis use was assessed by urine toxicology and self-report during treatment, and by self-report across a 1-year follow-up period (N=18). The cannabis-dependent group displayed diminished Stroop-related neural activity relative to the healthy-comparison group in multiple regions, including those strongly implicated in cognitive-control and addiction-related processes (eg, dorsolateral prefrontal cortex and ventral striatum). The groups did not differ significantly in response times (cannabis-dependent, N=12; healthy-comparison, N=14). Within the cannabis-dependent group, greater Stroop-related activity in regions including the dorsal anterior cingulate cortex was associated with less cannabis use during treatment. Greater activity in regions including the ventral striatum was associated with less cannabis use during 1-year posttreatment follow-up. These data suggest that lower cognitive-control-related neural activity in classic 'control' regions (eg, dorsolateral prefrontal cortex and dorsal anterior cingulate) and classic 'salience/reward/learning' regions (eg, ventral striatum) differentiates cannabis-dependent individuals from healthy individuals and relates to less abstinence within-treatment and during long-term follow-up. Clinically, results suggest that treatment development efforts that focus on enhancing cognitive control in addition to abstinence may improve treatment outcomes in cannabis dependence.
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Encéfalo/fisiopatologia , Abuso de Maconha/fisiopatologia , Abuso de Maconha/terapia , Adulto , Encéfalo/efeitos dos fármacos , Mapeamento Encefálico , Cannabis/efeitos adversos , Seguimentos , Humanos , Drogas Ilícitas/efeitos adversos , Drogas Ilícitas/urina , Imageamento por Ressonância Magnética , Masculino , Tempo de Reação/efeitos dos fármacos , Autorrelato , Teste de Stroop , Resultado do TratamentoRESUMO
OBJECTIVE: A previous pilot trial evaluating computer-based training for cognitive-behavioral therapy (CBT4CBT) in 77 heterogeneous substance users (alcohol, marijuana, cocaine, and opioids) demonstrated preliminary support for its efficacy in the context of a community-based outpatient clinic. The authors conducted a more definitive trial in a larger, more homogeneous sample. METHOD: In this randomized clinical trial, 101 cocaine-dependent individuals maintained on methadone were randomly assigned to standard methadone maintenance or methadone maintenance with weekly access to CBT4CBT, with seven modules delivered within an 8-week trial. RESULTS: Treatment retention and data availability were high and comparable across the treatment conditions. Participants assigned to the CBT4CBT condition were significantly more likely to attain 3 or more consecutive weeks of abstinence from cocaine (36% compared with 17%; p<0.05, odds ratio=0.36). The group assigned to CBT4CBT also had better outcomes on most dimensions, including urine specimens negative for all drugs, but these reached statistical significance only for individuals completing the 8-week trial (N=69). Follow-up data collected 6 months after treatment termination were available for 93% of the randomized sample; these data indicate continued improvement for those assigned to the CBT4CBT group, replicating previous findings regarding its durability. CONCLUSIONS: This trial replicates earlier findings indicating that CBT4CBT is an effective adjunct to addiction treatment with durable effects. CBT4CBT is an easily disseminable strategy for broadening the availability of CBT, even in challenging populations such as cocaine-dependent individuals enrolled in methadone maintenance programs.
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Transtornos Relacionados ao Uso de Cocaína/terapia , Terapia Cognitivo-Comportamental/métodos , Metadona/uso terapêutico , Entorpecentes/uso terapêutico , Terapia Assistida por Computador/métodos , Adulto , Terapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do TratamentoRESUMO
BACKGROUND: Multiple types of substance use are associated with HIV risk behaviors, but relatively little research has examined the association between marijuana use and risky sexual activities in treatment-seeking polysubstance abusing patients. OBJECTIVES: This study evaluated the relationship between marijuana use and sexual behaviors in 239 patients with cocaine, opioid or alcohol use disorders who were initiating outpatient substance use treatment. METHODS: Participants completed the HIV Risk Behavior Scale and were classified into one of three groups based on their marijuana use histories: never (n = 66), past but not current use (n = 124) or current use (n = 49). RESULTS: Compared to never marijuana users, current and former marijuana users had a greater likelihood of having more than 50 lifetime sexual partners (odds ratio [OR] and 95% confidence interval [CI] = 3.9 [1.0-15.7] and 5.2 [1.6-17.3], respectively). Former marijuana users had increased risk of low frequency condom use with casual partners relative to never users (OR [95% CI] = 2.9 [1.1-7.6]). Moreover, current marijuana users were more likely than never users to have had more than two recent sexual partners (OR [95% CI] = 8.1 [1.94-33.44]). CONCLUSION: Treatment-seeking polysubstance abusers with current or past marijuana use histories may be at greater risk of HIV infection than their counterparts who do not use marijuana. These data underscore the importance of increasing awareness about the potential association between marijuana use and increased high-risk sexual behavior among polysubstance abusing patients.
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Fumar Maconha/epidemiologia , Assunção de Riscos , Comportamento Sexual/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Sexo sem Proteção/estatística & dados numéricos , Adulto , Feminino , Infecções por HIV/transmissão , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Fumar Maconha/psicologia , Pessoa de Meia-Idade , Comportamento Sexual/psicologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Transtornos Relacionados ao Uso de Substâncias/terapia , Sexo sem Proteção/psicologiaRESUMO
Drug addiction continues to be an important public health problem, with an estimated 22.6 million current illicit drug users in the United States alone. For many addictions, including cocaine, methamphetamine, and marijuana addiction, there are no approved pharmacological treatments. Behavioral treatments are effective but effects vary widely across individuals. Treatments that are effective across multiple addictions are greatly needed, and accumulating evidence suggests that one such approach may be pharmacological or behavioral interventions that enhance executive inhibitory control in addicts. Current evidence indicates that most forms of chronic drug use may be associated with significant cognitive impairments, especially in attention, working memory, and response inhibition functions. In some studies, these impairments predict poor treatment retention and outcome. A number of cognitive enhancing agents, including galantamine, modafinil, atomoxetine, methylphenidate, and guanfacine, have shown promising findings in human studies. Specific behavioral interventions, including cognitive remediation, also show promise. However, whether improvement of selective cognitive functions reduces drug use behavior remains to be determined. Cognitive enhancement to improve treatment outcomes is a novel strategy worthy of future research, as are related questions such as whether these approaches may be broadly beneficial to most addicts or best reserved for substance users with specific demonstrated cognitive impairments. This article is part of a Special Issue entitled 'Cognitive Enhancers'.
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Transtornos Cognitivos/prevenção & controle , Cognição/efeitos dos fármacos , Nootrópicos/uso terapêutico , Transtornos Relacionados ao Uso de Substâncias/tratamento farmacológico , Animais , Terapia Comportamental , Transtornos Cognitivos/etiologia , Terapia Combinada , Função Executiva/efeitos dos fármacos , Humanos , Transtornos Relacionados ao Uso de Substâncias/fisiopatologia , Transtornos Relacionados ao Uso de Substâncias/terapiaRESUMO
Treatment integrity ratings (adherence and competence) are frequently used as outcome measures in clinician training studies, drawn from recorded real client or role-played client sessions. However, it is unknown whether clinician adherence and competence are similar in real client and role-played sessions or whether real and role-play clients provide similar opportunities for skill demonstration. In this study, we examined the correspondence of treatment adherence and competence ratings obtained in real client and role-played sessions for 91 clinicians trained in motivational interviewing (MI), using data from a multisite trial examining 3 methods of clinician training (Martino et al., 2011). Results indicated overall poor integrity rating correspondence across the 2 session types, as indicated by weak correlations (rs=.05-.27). Clinicians were rated significantly more MI adherent overall and specifically used more advanced MI strategies in role-played than real client sessions at several assessment time points (ds=0.36, 0.42). Real clients, in comparison to the role-play actor, demonstrated greater motivation at the beginning of the session (d=1.09), discussion of unrelated topics (d=0.70), and alliance with the clinician (d=0.72). These findings suggest that MI integrity rating data obtained from real client and role-played sessions may not be interchangeable. More research is needed to improve the procedures and psychometric strength of treatment integrity assessment based on role-played sessions.
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Competência Clínica/normas , Entrevista Motivacional/normas , Avaliação de Processos e Resultados em Cuidados de Saúde/normas , Cooperação do Paciente/psicologia , Relações Profissional-Paciente , Adulto , Ensaios Clínicos como Assunto , Humanos , Estudos Multicêntricos como Assunto , Desempenho de PapéisRESUMO
Delay discounting is an index of impulsive decision-making and reflects an individual's preference for smaller immediate rewards relative to larger delayed rewards. Multiple studies have indicated comparatively high rates of discounting among tobacco, alcohol, cocaine, and other types of drug users, but few studies have examined discounting among marijuana users. This report is a secondary analysis of data from a clinical trial that randomized adults with marijuana dependence to receive one of four treatments that involved contingency management (CM) and cognitive-behavioral therapy interventions. Delay discounting was assessed with the Experiential Discounting Task (Reynolds & Schiffbauer, 2004) at pretreatment in 93 participants and at 12 weeks posttreatment in 61 participants. Results indicated that higher pretreatment delay discounting (i.e., more impulsive decision-making) significantly correlated with lower readiness to change marijuana use (r = -0.22, p = .03) and greater number of days of cigarette use (r = .21, p = .04). Pretreatment discounting was not associated with any marijuana treatment outcomes. CM treatment significantly interacted with time to predict change in delay discounting from pre- to posttreatment; participants who received CM did not change their discounting over time, whereas those who did not receive CM significantly increased their discounting from pre- to posttreatment. In this sample of court-referred young adults receiving treatment for marijuana dependence, delay discounting was not strongly related to treatment outcomes, but there was some evidence that CM may protect against time-related increases in discounting.
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Comportamento Impulsivo/psicologia , Abuso de Maconha/psicologia , Adulto , Terapia Cognitivo-Comportamental , Tomada de Decisões , Feminino , Humanos , Comportamento Impulsivo/complicações , Masculino , Abuso de Maconha/complicações , Abuso de Maconha/terapia , Desempenho Psicomotor , Recompensa , Resultado do TratamentoRESUMO
AIMS: To evaluate reciprocal enhancement (combining treatments to offset their relative weaknesses) as a strategy to improve cannabis treatment outcomes. Contingency management (CM) with reinforcement for homework completion and session attendance was used as a strategy to enhance cognitive-behavioral therapy (CBT) via greater exposure to skills training; CBT was used as a strategy to enhance durability of CM with rewards for abstinence. SETTING: Community-based out-patient treatment program in New Haven, Connecticut, USA. DESIGN: Twelve-week randomized clinical trial of four treatment conditions: CM for abstinence alone or combined with CBT, CBT alone or combined with CM with rewards for CBT session attendance and homework completion. PARTICIPANTS: A total of 127 treatment-seeking young adults (84.3% male, 81.1% minority, 93.7% referred by criminal justice system, average age 25.7 years). MEASUREMENTS: Weekly urine specimens testing positive for cannabis, days of cannabis use via the time-line follow-back method. FINDINGS: Within treatment, reinforcing homework and attendance did not significantly improve CBT outcomes, and the addition of CBT worsened outcomes when added to CM for abstinence (75.5 versus 57.1% cannabis-free urine specimens, F = 2.25, P = 0.02). The CM for abstinence condition had the lowest percentage of cannabis-negative urine specimens and the highest mean number of consecutive cannabis-free urine specimens (3.3, F = 2.33, P = 0.02). Attrition was higher in the CBT alone condition, but random effect regression analyses indicated this condition was associated with the greatest rate of change overall. Cannabis use during the 1-year follow-up increased most rapidly for the two enhanced groups. CONCLUSIONS: Combining contingency management and cognitive-behavioural therapy does not appear to improve success rates of treatment for cannabis dependence in clients involved with the criminal justice system.
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Terapia Cognitivo-Comportamental/métodos , Abuso de Maconha/terapia , Adulto , Assistência Ambulatorial/métodos , Análise de Variância , Terapia Combinada , Feminino , Seguimentos , Humanos , Masculino , Cooperação do Paciente , Recompensa , Resultado do TratamentoRESUMO
BACKGROUND: Few studies have addressed comorbid antisocial personality disorder (ASPD) and marijuana dependence in young adults, and results from previous studies are inconsistent. OBJECTIVES: This study evaluated differences in pretreatment characteristics and treatment outcomes between marijuana-dependent young adults with and without ASPD. METHODS: Data for this study were derived from a randomized trial, in which marijuana-dependent young adults (n = 136) between 18 and 25 years of age were randomized to four behavioral conditions: (1) MET/CBT with CM, (2) MET/CBT without CM, (3) DC with CM, and (4) DC without CM. RESULTS: Forty-four percent of the participants met DSM-IV-TR criteria for ASPD. ASPD clients had significantly more lifetime alcohol dependence disorders, marijuana use in the 28 days pretreatment, arrests, and assault and weapon charges compared to those without ASPD. ASPD clients did not differ in retention or substance use outcomes at 8 weeks posttreatment or the 6-month follow-up. In general, both groups had more attendance in the voucher condition, but there were no significant ASPD by treatment interactions. CONCLUSIONS: These data suggest that marijuana-dependent young adults with comorbid ASPD do not necessarily have poorer retention or substance use outcomes compared with marijuana-dependent young adults who do not have ASPD when treated in a well-defined behavioral therapy protocol. SCIENTIFIC SIGNIFICANCE: Previous research has shown increased risks for clients with comorbid ASPD and marijuana dependence; however, our findings suggest that specialized programs for clients with ASPD may not be necessary if they are provided with empirically supported, structured treatments.
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Alcoolismo/epidemiologia , Transtorno da Personalidade Antissocial/epidemiologia , Terapia Cognitivo-Comportamental/métodos , Abuso de Maconha/reabilitação , Adolescente , Adulto , Diagnóstico Duplo (Psiquiatria) , Feminino , Seguimentos , Humanos , Masculino , Motivação , Fatores de Tempo , Resultado do Tratamento , Adulto JovemRESUMO
BACKGROUND: Cigarette smoking is the leading cause of preventable death in the world, and long-term abstinence rates remain modest. Mindfulness training (MT) has begun to show benefits in a number of psychiatric disorders, including depression, anxiety and more recently, in addictions. However, MT has not been evaluated for smoking cessation through randomized clinical trials. METHODS: 88 treatment-seeking, nicotine-dependent adults who were smoking an average of 20cigarettes/day were randomly assigned to receive MT or the American Lung Association's freedom from smoking (FFS) treatment. Both treatments were delivered twice weekly over 4 weeks (eight sessions total) in a group format. The primary outcomes were expired-air carbon monoxide-confirmed 7-day point prevalence abstinence and number of cigarettes/day at the end of the 4-week treatment and at a follow-up interview at week 17. RESULTS: 88% of individuals received MT and 84% of individuals received FFS completed treatment. Compared to those randomized to the FFS intervention, individuals who received MT showed a greater rate of reduction in cigarette use during treatment and maintained these gains during follow-up (F=11.11, p=.001). They also exhibited a trend toward greater point prevalence abstinence rate at the end of treatment (36% vs. 15%, p=.063), which was significant at the 17-week follow-up (31% vs. 6%, p=.012). CONCLUSIONS: This initial trial of mindfulness training may confer benefits greater than those associated with current standard treatments for smoking cessation.