Faculty Bibliography

This study of 632 drug injectors enrolled in eight residential detoxification centers within the National Drug Abuse Treatment Clinical Trials Network tested three interventions to reduce drug and sex risk behaviors. Participants were randomized to: (a) a two-session, HIV/HCV counseling and education (C&E) model added to treatment as usual (TAU), (b) a one-session, therapeutic alliance (TA) intervention conducted by outpatient counselors to facilitate treatment entry plus TAU, or (c) TAU. Significant reductions in drug and sex risk behaviors occurred for all three conditions over a 6-month follow-up period. C&E participants reported significantly greater rates of attending an HIV testing appointment, but this was not associated with better risk reduction outcomes. Reporting treatment participation within 2 months after detoxification and self-efficacy to practice safer injection behavior predicted reductions in injection risk behaviors. Findings indicate that participation in detoxification was followed by significant decreases in drug injection and risk behaviors for up to 6-months; interventions added to standard treatment offered no improvement in risk behavior outcomes

This report examines associations between the availability of human immunodeficiency virus (HIV)-related health services in substance abuse treatment programs and characteristics of the programs and the patients they serve. In a cross-sectional, descriptive design and via a validated survey, program administrators within the National Drug Abuse Treatment Clinical Trials Network provided information on program characteristics, patient characteristics (rates of risky sexual and drug behaviors and HIV infection), and the availability of 31 different HIV-related health services. Of 319 programs, 84% submitted surveys. Service availability rates ranged from: 10% (pneumococcal vaccination) to 86% (drug testing) for the 6 HIV-related services offered to all patients, 13% (Pap smear for women) to 54% (tuberculin skin testing) for the 6 services offered to new patients, 2% (sterile injection equipment) to 64% (male condoms) for the 4 risk-reduction services, 37% (Pap smear for women) to 61% (tuberculin skin testing) for the 11 biological assessments offered to HIV-positive patients, and 33% (medical treatments) to 52% (counseling) for the 4 other services offered to HIV-positive patients. The availability of these HIV-related services was associated with clinical settings, the types of addiction treatment services, the rates of risky drug and sexual behaviors, and HIV infection rates among patients. Availability of such services was below published guidelines. While the results provide another basis for the infection-related prevention benefits of substance abuse treatment, the variability in the availability of HIV-related health care deserves further study and has health policy implications in determining how to utilize substance abuse treatment in reducing drug-related HIV transmission

OBJECTIVE: The purpose of the analysis was to examine the temporal course of improvement in symptoms of posttraumatic stress disorder (PTSD) and substance use disorder among women in outpatient substance abuse treatment. METHOD: Participants were 353 women randomly assigned to 12 sessions of either trauma-focused or health education group treatment. PTSD and substance use assessments were conducted during treatment and posttreatment at 1 week and after 3, 6, and 12 months. A continuous Markov model was fit on four defined response categories (nonresponse, substance use response, PTSD response, or global response [improvement in both PTSD and substance use]) to investigate the temporal association between improvement in PTSD and substance use symptom severity during the study's treatment phase. A generalized linear model was applied to test this relationship over the follow-up period. RESULTS: Subjects exhibiting nonresponse, substance use response, or global response tended to maintain original classification; subjects exhibiting PTSD response were significantly more likely to transition to global response over time, indicating maintained PTSD improvement was associated with subsequent substance use improvement. Trauma-focused treatment was significantly more effective than health education in achieving substance use improvement, but only among those who were heavy substance users at baseline and had achieved significant PTSD reductions. CONCLUSIONS: PTSD severity reductions were more likely to be associated with substance use improvement, with minimal evidence of substance use symptom reduction improving PTSD symptoms. Results support the self-medication model of coping with PTSD symptoms and an empirical basis for integrated interventions for improved substance use outcomes in patients with severe symptoms

Objective Cocaine dependence is associated with severe medical, psychiatric, and social morbidity, but no pharmacotherapy is approved for its treatment in the United States. The atypical antiepileptic vigabatrin (gamma-vinyl gamma-aminobutyric acid [GABA]) has shown promise in animal studies and open-label trials. The purpose of the present study was to assess the efficacy of vigabatrin for short-term cocaine abstinence in cocaine-dependent individuals. Method Participants were treatment seeking parolees who were actively using cocaine and had a history of cocaine dependence. Subjects were randomly assigned to a fixed titration of vigabatrin (N=50) or placebo (N=53) in a 9-week double-blind trial and 4-week follow-up assessment. Cocaine use was determined by directly observed urine toxicology testing twice weekly. The primary endpoint was full abstinence for the last 3 weeks of the trial. Results Full end-of-trial abstinence was achieved in 14 vigabatrin-treated subjects (28.0%) versus four subjects in the placebo arm (7.5%). Twelve subjects in the vigabatrin group and two subjects in the placebo group maintained abstinence through the follow-up period. The retention rate was 62.0% in the vigabatrin arm versus 41.5% in the placebo arm. Among subjects who reported prestudy alcohol use, vigabatrin, relative to placebo, was associated with superior self-reported full end-of-trial abstinence from alcohol (43.5% versus 6.3%). There were no differences between the two groups in drug craving, depressed mood, anxiety, or Clinical Global Impression scores, and no group differences in adverse effects emerged. Conclusions This first randomized, double-blind, placebo-controlled trial supports the safety and efficacy of short-term vigabatrin treatment of cocaine dependence

The authors compared the effectiveness of the Seeking Safety group, cognitive-behavioral treatment for substance use disorder and posttraumatic stress disorder (PTSD), to an active comparison health education group (Women's Health Education [WHE]) within the National Institute on Drug Abuse's Clinical Trials Network. The authors randomized 353 women to receive 12 sessions of Seeking Safety (M = 6.2 sessions) or WHE (M = 6.0 sessions) with follow-up assessment 1 week and 3, 6, and 12 months posttreatment. Primary outcomes were the Clinician Administered PTSD Scale (CAPS), the PTSD Symptom Scale-Self Report (PSS-SR), and a substance use inventory (self-reported abstinence and percentage of days of use over 7 days). Intention-to-treat analysis showed large, clinically significant reductions in CAPS and PSS-SR symptoms (d = 1.94 and 1.12, respectively) but no reliable difference between conditions. Substance use outcomes were not significantly different over time between the two treatments and at follow-up showed no significant change from baseline. Study results do not favor Seeking Safety over WHE as an adjunct to substance use disorder treatment for women with PTSD and reflect considerable opportunity to improve clinical outcomes in community-based treatments for these co-occurring conditions

OBJECTIVES: This report focused upon the availability of infection-related health services in substance abuse treatment programs with and without addiction services tailored for special populations (women and non-white populations). METHODS: In a cross-sectional, descriptive design, treatment program administrators across the United States within the National Drug Abuse Treatment Clinical Trials Network provided information on program characteristics, the availability of infection-related services (four medical services and three non-medical services for HIV, HCV, and STI), and barriers to providing infection-related services. RESULTS: Of 319 programs, 269 submitted surveys (84% response rate). Of these, 80% provided addiction services for special populations. Programs providing addiction services designed for at least one special population, were more likely to provide infection-related health services, especially HIV-related education (94% versus 85%, p = 0.05) and patient counseling (76% versus 60%, p = 0.03) and were more likely to include outpatient addiction services (86% versus 57%, p<0.001) and outreach and support services (92% versus 70%, p=0.01). Barriers to providing infection-related services included funding (cited by 48.3% to 74.7% of programs), health insurance (cited by 28.9% to 60.8% of programs), and patient acceptance (cited by 23.2% to 54.3% of programs). CONCLUSIONS: Despite many barriers, infection-related healthcare is available in programs with addiction treatment services tailored for special populations, especially for African Americans and Latino Americans. Tailoring substance abuse treatment along with reducing barriers to infection-related care represent public health interventions with potential to reduce the burdens and disparities associated with these infections

Substance abuse treatment programs are an important platform for delivery of services for infectious diseases associated with drug and alcohol use. However, important components of infectious disease care are not universally provided. Clinician training often focuses on information about infectious diseases and less attention is paid to provider opinions and attitudes that may be barriers to providing infectious diseases services. In a national multi-site trial conducted by the National Drug Abuse Treatment Clinical Trials Network (CTN), we investigated the relationship between clinician opinions and the delivery of services for human immunodeficiency virus, hepatitis C virus, and sexually transmitted infections in substance abuse treatment settings. Survey data were collected from 1,723 clinicians at 269 CTN treatment programs. Clinician opinion was found to be significantly related to infectious disease service delivery. Implications for training are discussed

Nicotine dependence is highly prevalent among drug- and alcohol-dependent patients. A multisite clinical trial of smoking cessation (SC) treatment was performed at outpatient community-based substance abuse rehabilitation programs affiliated with the National Drug Abuse Treatment, Clinical Trials Network. Cigarette smokers (N=225) from five methadone maintenance programs and two drug and alcohol dependence treatment programs were randomly assigned in a 2:1 ratio to receive either (1) SC treatment as an adjunct to substance abuse treatment-as-usual (TAU) or (2) substance abuse TAU. Smoking cessation treatment consisted of 1 week of group counseling before the target quit date and 8 weeks of group counseling plus transdermal nicotine patch treatment (21 mg/day for Weeks 1-6 and 14 mg/day for Weeks 7 and 8) after the target quit date. Smoking abstinence rates in SC, 10%-11% during treatment and 5%-6% at the 13- and 26-week follow-up visits, were significantly better than those in TAU during treatment (p< .01). In addition, SC was associated with significantly greater reductions as compared with TAU in cigarettes smoked per day (75% reduction, p< .001), exhaled carbon monoxide levels (p< .001), cigarette craving (p< .05), and nicotine withdrawal (p< .05). Smoking cessation did not differ from TAU on rates of retention in substance abuse treatment, abstinence from primary substance of abuse, and craving for primary substance of abuse. Compliance with SC treatment, moderate at best, was positively associated with smoking abstinence rates. Smoking cessation treatment resulted in significant reductions in daily smoking and modest smoking abstinence rates without having an adverse impact on substance abuse rehabilitation when given concurrently with outpatient substance abuse treatment. Substance abuse treatment programs should not hesitate to implement SC for established patients

Community-based substance abuse treatment programs provide HIV, hepatitis C virus, and sexually transmitted infection services. To explore how state funding and guidelines affect practice, we surveyed state agency administrators and substance abuse treatment program administrators and clinicians regarding 8 infection-related services. Although state funding for infection-related services is widely available, substance abuse treatment programs do not always access it. Substance abuse treatment program guidelines are clearer in states that have written guidelines. Improved communication between state agencies and substance abuse treatment programs may enhance service

Cigarette smoking is widely prevalent among individuals in treatment for drug or alcohol dependence; however, the treatment of nicotine addiction in this population has numerous obstacles at both programmatic and patient levels. Despite these difficulties, recent studies have demonstrated moderate success in implementing smoking cessation treatment in drug rehabilitation programs. The National Drug Abuse Treatment Clinical Trials Network sponsored a smoking cessation study in 13 community-based outpatient substance abuse rehabilitation programs across the country. The study evaluated the effectiveness of smoking cessation treatment provided as an adjunct to substance abuse treatment-as-usual. This report summarizes the practical and clinical experiences encountered at each of the study sites with regard to implementing the smoking cessation treatment intervention. Smoking behavior of the treatment clientele was assessed by anonymous survey at each site. In addition, sites were systematically characterized by using program review and assessment tools completed by the respective staff and program directors at the site. Survey and recruitment data indicated that cigarette smoking is more prevalent and that smoking cessation treatment is more feasible, in methadone maintenance treatment programs. Other factors associated with smoking behavior and with the recruitment of drug- and alcohol-dependent individuals into the smoking cessation treatment study are described.