670 likes | 832 Views
Treatment and Prevention of Substance Use Disorders. Lecture Overview Nature and treatment of alcoholism Tobacco Treatments and Prevention Relapse Prevention. Prevalence of Substance Disorders. Lifetime Prevalence of DSM-III-R Substance Abuse Disorders.
E N D
Treatment and Prevention of Substance Use Disorders • Lecture Overview • Nature and treatment of alcoholism • Tobacco Treatments and Prevention • Relapse Prevention Substance Abuse
Prevalence of Substance Disorders Substance Abuse
Lifetime Prevalence of DSM-III-R Substance Abuse Disorders Source: Tsuang et al (1998). Archives of General Psychiatry, 55, 967-972. Data based on 3372 Male Twin Pairs Substance Abuse
Conditional Probabilities of Drug Use Co-occurrence SOURCE: Tsuang et al (1998). Archives of General Psychiatry, 55, 967-972.Data based on 3372 Male Twin Pairs Substance Abuse
Lifetime Prevalence of DSM-III-R Drug Use and Dependence Source: Warner et al (1995). Archives of General Psychiatry, 52, 219-228. Data from National Comorbidity Study Substance Abuse
Pharmacological Treatment for Alcohol Dependence • Disulfiram • Lithium • Naltrexone • Acamprosate? Substance Abuse
Effects of Naltrexone in Reducing Relapse SOURCE: Volpicelli et al (1992). Archives of General Psychiatry, 49, 876-880. Substance Abuse
Effects of Naltrexone in Reducing Relapse SOURCE: O’Malley et al (1992). Archives of General Psychiatry, 49, 881-887. Substance Abuse
Effects of Naltrexone in Reducing Relapse SOURCE: O’Malley et al (1992). Archives of General Psychiatry, 49, 881-887. Substance Abuse
Behavioral Approaches to Alcoholism • Aversion Methods • Chemical • Electrical • Imaginal Substance Abuse
Behavioral Approaches to Alcoholism • Cue Exposure • Rationale Substance Abuse
Cue Exposure:Treatment Components • Continuous exposure to an opened alcohol beverage • Focus on the sight and smell of the beverage • Focus on imaginal drinking cues (high risk situations) • Guided practice in specific coping skills to reduce urges to drink during in vivo and imaginal exposures Substance Abuse
Efficacy Studies: Cued Exposure Monti et al, 1993 Substance Abuse
Cue Exposure With Coping Skills Training SOURCE: Monti et al (1993). JCCP, 61, 1011-1019. CET = Cue Exposure + Skills Training CC = Control Condition Substance Abuse
Efficacy Studies: Cued Exposure Sitharthan et al, 1993 Substance Abuse
Efficacy of Cued Exposure in Moderation Drinking SOURCE: Sitharthan et al, (1993). JCCP, 65, 878-882. Data presented are for the 6-mo follow-up. Frequency = Drinks per month Substance Abuse
Behavioral Approaches to Alcoholism • Relapse Prevention Training • Rationale Substance Abuse
Approaches for Preventing Relapse • Booster session method • Shot gun method • Self-control method • Analyses of relapse process Substance Abuse
Marlatt's Relapse Prevention Model • Major components of the model • High-risk situation Substance Abuse
Triggers for Relapse • Intrapersonal • Coping with negative emotional states • Coping with negative physical/physiological states • Enhancement of positive emotional state • Testing personal control • Giving in to urges Substance Abuse
Triggers for Relapse • Interpersonal triggers • Coping with interpersonal conflict • Social pressure • Enhancement of positive emotional state Substance Abuse
Most Common High-risk Situations • Coping with negative emotional states (37%) • Coping with social pressures (24%) • Coping with interpersonal conflict (15%) Substance Abuse
Marlatt's Relapse Prevention Model • Major components of the model • High-risk situation • Ability to engage in adaptive coping response Substance Abuse
Marlatt’s Relapse Prevention Model • Major components of the model • High-risk situation • Ability to engage in adaptive coping response • Positive outcome expectancies about the substance Substance Abuse
Marlatt’s Relapse Prevention Model • Major components of the model • High-risk situation • Ability to engage in adaptive coping response • Positive outcome expectancies about the substance • Abstinence violation effect (AVE) Substance Abuse
Major Treatment Components of Relapse Prevention Training • Learning to identify high risk situations via self-monitoring • Specific skill training to build effective coping responses • General lifestyle skill training to increase patients' general coping and sense of personal control • Development of leisure activities that do not involve alcohol • Information to counter positive outcome expectancies • Training in coping with slips and the AVE Substance Abuse
Controlled Efficacy Data on Relapse Prevention Training • Description of controlled outcome studies • Number of studies • Type of substance • Abstinence initiation vs. Maintenance of abstinence • Types of comparison groups Substance Abuse
Controlled Efficacy Data on Relapse Prevention Training • Major findings • Comparison to minimal or no treatment • Comparison to attention controls • Comparison to alternative active treatments Substance Abuse
Research on Treatment Matching Substance Abuse
Treatment Matching • Rationale Substance Abuse
Treatment Matching • Conditions for which matching is most appropriate • No single treatment has been shown to be superior • Evidence to suggest that significant subject heterogeneity exists • When evidence suggests that treatment outcome is a function of the interaction between subject characteristics and type of treatment delivered Substance Abuse
Treatment Matching • Practical obstacles to treatment matching • Lack of alternative treatments • Need to specify the treatments along a number of therapy-relevant dimensions • Need to specify the client characteristics at which the treatments are targeted • Practical impact of the increased workload associated with the necessary assessments and treatments • Need to determine the best methods for matching clients and treatments Substance Abuse
Treatment Matching • Observed moderator effects • Social skills (Kadden et al (1992) • Level of craving (Jaffe et al, 1996) • Religiosity (Craig et al, 1977) Substance Abuse
Project Match Substance Abuse
Project MATCH • Primary aim • To assess the benefits of matching alcohol dependent patients to three different treatments based on selected patient characteristics Substance Abuse
Project MATCH • Design • Two parallel but independent 3-arm multisite (10 sites) randomized clinical trials, one with outpatients (N = 952) and one with patients receiving aftercare treatment following intensive inpatient treatment (N = 774) • Treatment conditions (12 individual sessions) • Cognitive-behavior therapy (CBT) • Twelve-step facilitation therapy (12-step) • Motivational enhancement therapy (MET) Substance Abuse
Project MATCH • Apriori matching variables • Severity of alcohol involvement (Edwards & Lader, 1994) • Cognitive impairment (Cooney et al, 1991) • Client conceptual level (McLachlan, 1972) • Gender (Cronkite & moos, 1983) • Meaning seeking (brown et al, 1993) • Readiness to change (DiClemente and Hughes, 1990) • Psychiatric severity ((Kadden et al, 1989) • Social support for drinking (Longabaugh e al, 1993; 1995) • Sociopathy (Cooney et al, 1991) • Typology (Litt et al, 1992) Substance Abuse
Project MATCH • Primary treatment outcome measures • Percent days abstinent (PDA) • Measures drinking frequency • Drinks per drinking days (DDD) • Measures drinking severity Substance Abuse
Project MATCH – Study Findings • Treatment outcome • All three treatments led to significant reductions in PDA and DDD • The improvements on alcohol indices were largely maintained over a 15-month period • The majority of patients did not maintain complete abstinence over thee study period • In general, there were no significant differences between the three treatments for either the aftercare trial or the outpatient trial Substance Abuse
Project MATCH – Study Findings • Matching findings • None of the apriori matching hypotheses were significant for the aftercare sample for either PDA or DDD • One matching hypothesis (psychiatric severity) was significant in the outpatient sample Substance Abuse
Differential Effects of Psychiatric Severity Substance Abuse
Project MATCH – Study Findings • Other moderator effects • For the aftercare sample • Male gender was associated with poorer outcome on PDA • Male gender, higher alcohol involvement, higher social support for drinking was associated with poorer outcome on DDD • Outpatient sample • Higher pretreatment motivation and lower scores on social support for drinking were each associated with a more favorable outcome Substance Abuse
Prevention of Substance Abuse Substance Abuse
Epidemiology • Prevalence of substance use among adolescents • Trends over time • Effects of age, gender, and ethnicity on prevalence • Relationship between cigarette smoking and other drug use Substance Abuse
Prevalence of Substance Use Among Adolescents 12-17 Source: 1995 National Household Survey on Drug Abuse Substance Abuse
Gender Breakdown of Substance Use Among Adolescents 12-17 Source: 1995 National Household Survey on Drug Abuse Substance Abuse
Racial Breakdown of Substance Use Among Adolescents 12-17 Source: 1995 National Household Survey on Drug Abuse Substance Abuse
Cigarette Smoking • Scope of the problem • Mortality • Costs to society • Adverse effects on pregnancy • Adverse effects of environmental tobacco smoke Substance Abuse