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Dive into the research topics where Michelle C. Acosta is active.

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Featured researches published by Michelle C. Acosta.


Journal of the American Academy of Child and Adolescent Psychiatry | 2011

Randomized Controlled Trial of Osmotic-Release Methylphenidate with Cognitive-Behavioral Therapy in Adolescents with Attention-Deficit/Hyperactivity Disorder and Substance Use Disorders.

Paula D. Riggs; Theresa Winhusen; Robert D. Davies; Jeffrey D. Leimberger; Susan K. Mikulich-Gilbertson; Constance Klein; Marilyn J. Macdonald; Michelle Lohman; Genie L. Bailey; Louise Haynes; William B. Jaffee; Nancy Haminton; Candace C. Hodgkins; Elizabeth A. Whitmore; Kathlene Trello-Rishel; Leanne Tamm; Michelle C. Acosta; Charlotte Royer-Malvestuto; Geetha Subramaniam; Marc Fishman; Beverly W. Holmes; Mary Elyse Kaye; Mark A. Vargo; George E. Woody; Edward V. Nunes; David Liu

OBJECTIVE To evaluate the efficacy and safety of osmotic-release methylphenidate (OROS-MPH) compared with placebo for attention-deficit/hyperactivity disorder (ADHD), and the impact on substance treatment outcomes in adolescents concurrently receiving cognitive-behavioral therapy (CBT) for substance use disorders (SUD). METHOD This was a 16-week, randomized, controlled, multi-site trial of OROS-MPH + CBT versus placebo + CBT in 303 adolescents (aged 13 through 18 years) meeting DSM-IV diagnostic criteria for ADHD and SUD. Primary outcome measures included the following: for ADHD, clinician-administered ADHD Rating Scale (ADHD-RS), adolescent informant; for substance use, adolescent-reported days of use in the past 28 days. Secondary outcome measures included parent ADHD-RS and weekly urine drug screens (UDS). RESULTS There were no group differences on reduction in ADHD-RS scores (OROS-MPH: -19.2, 95% confidence interval [CI], -17.1 to -21.2; placebo, -21.2, 95% CI, -19.1 to -23.2) or reduction in days of substance use (OROS-MPH: -5.7 days, 95% CI, 4.0-7.4; placebo: -5.2 days, 95% CI, 3.5-7.0). Some secondary outcomes favored OROS-MPH, including lower parent ADHD-RS scores at 8 (mean difference = 4.4, 95% CI, 0.8-7.9) and 16 weeks (mean difference =6.9; 95% CI, 2.9-10.9) and more negative UDS in OROS-MPH (mean = 3.8) compared with placebo (mean = 2.8; p = .04). CONCLUSIONS OROS-MPH did not show greater efficacy than placebo for ADHD or on reduction in substance use in adolescents concurrently receiving individual CBT for co-occurring SUD. However, OROS-MPH was relatively well tolerated and was associated with modestly greater clinical improvement on some secondary ADHD and substance outcome measures. Clinical Trial Registration Information-Attention Deficit Hyperactivity Disorder (ADHD) in Adolescents with Substance Use Disorders (SUD); http://www.clinicaltrials.gov; NCT00264797.


Journal of Substance Abuse Treatment | 2014

Web-based behavioral treatment for substance use disorders as a partial replacement of standard methadone maintenance treatment

Lisa A. Marsch; Honoria Guarino; Michelle C. Acosta; Yesenia Aponte-Melendez; Charles M. Cleland; Michael J. Grabinski; Ronald Brady; Joyce Edwards

This study is the first experimental trial to evaluate the effectiveness of a Web-based behavioral intervention when deployed in a model where it partially substituted for standard counseling in a community-based specialty addiction treatment program. New opioid-dependent intakes in methadone maintenance treatment (n=160) were randomly assigned for 12months to either: (1) standard treatment or (2) reduced standard treatment plus a Web-based psychosocial intervention, the Therapeutic Education System (TES). Results demonstrated that replacing a portion of standard treatment with TES resulted in significantly greater rates of objectively measured opioid abstinence (48% vs. 37% abstinence across all study weeks; F(1, 158)=5.90, p<.05 and 59% vs. 43% abstinence on weeks participants provided urine samples for testing; F(1, 158)=8.81, p<.01). This result was robust and was evident despite how opioid abstinence was operationally defined and evaluated. The potential implications for service delivery models within substance abuse treatment programs and other healthcare entities are discussed.


Substance Use & Misuse | 2011

Computer-assisted HIV prevention for youth with substance use disorders.

Lisa A. Marsch; Michael J. Grabinski; Warren K. Bickel; Alethea Desrosiers; Honoria Guarino; Britta Muehlbach; Ramon Solhkhah; Shilpa Taufique; Michelle C. Acosta

We developed an interactive, customizable, Web-based program focused on the prevention of HIV, sexually transmitted infections, and hepatitis among youth. Results from a randomized, controlled trial with youth in treatment for substance use demonstrated that this Web-based tool, when provided as an adjunct to an educator-delivered prevention intervention, increased accurate prevention knowledge, increased intentions to carefully choose partners, and was perceived as significantly more useful relative to the educator-delivered intervention when provided alone. Results suggest this Web-based program may be effective and engaging and may increase the adoption of effective HIV and disease prevention science for youth. Limitations are discussed.


Journal of Substance Abuse Treatment | 2013

Predictors of Treatment Response in Adolescents with Comorbid Substance Use Disorder and Attention-Deficit/Hyperactivity Disorder

Leanne Tamm; Kathlene Trello-Rishel; Paula D. Riggs; Paul A. Nakonezny; Michelle C. Acosta; Genie L. Bailey; Theresa Winhusen

Attention-Deficit/Hyperactivity Disorder (ADHD) frequently co-occurs with substance use disorder (SUD) and is associated with poor substance-use treatment outcomes. A trial evaluating osmotic-release oral system methylphenidate (OROS-MPH) for adolescents with ADHD and SUD, concurrently receiving behavioral therapy, revealed inconsistent medication effects on ADHD or SUD. Clinical care for this population would be advanced by knowledge of treatment outcome predictors. Data from the randomized placebo-controlled trial (n = 299) were analyzed. Significant treatment predictors included: 1) Substance use severity, associated with poorer ADHD and SUD outcomes, 2) ADHD severity, associated with better ADHD and SUD outcomes, 3) comorbid conduct disorder, associated with poorer ADHD outcomes, and 4) court-mandated status, associated with better SUD outcomes but poorer treatment completion. An interaction effect showed that OROS-MPH improved SUD outcomes in adolescents with comorbid conduct disorder compared to placebo. While severe SUD may require more intensive psychosocial treatment, OROS-MPH may improve substance treatment outcomes in adolescents with co-morbid attention and conduct problems.


Translational behavioral medicine | 2013

Using findings in multimedia learning to inform technology-based behavioral health interventions

Ian David Aronson; Lisa A. Marsch; Michelle C. Acosta

ABSTRACTClinicians and researchers are increasingly using technology-based behavioral health interventions to improve intervention effectiveness and to reach underserved populations. However, these interventions are rarely informed by evidence-based findings of how technology can be optimized to promote acquisition of key skills and information. At the same time, experts in multimedia learning generally do not apply their findings to health education or conduct research in clinical contexts. This paper presents an overview of some key aspects of multimedia learning research that may allow those developing health interventions to apply informational technology with the same rigor as behavioral science content. We synthesized empirical multimedia learning literature from 1992 to 2011. We identified key findings and suggested a framework for integrating technology with educational and behavioral science theory. A scientific, evidence-driven approach to developing technology-based interventions can yield greater effectiveness, improved fidelity, increased outcomes, and better client service.


Journal of Dual Diagnosis | 2012

A Web-Based Behavior Therapy Program Influences the Association Between Cognitive Functioning and Retention and Abstinence in Clients Receiving Methadone Maintenance Treatment

Michelle C. Acosta; Lisa A. Marsch; Haiyi Xie; Honoria Guarino; Yesenia Aponte-Melendez

Objective: Deficits in cognitive functioning have been well-documented in persons with substance use disorders. In addition, some evidence suggests that poorer cognitive functioning predicts poorer engagement in substance abuse treatment and worse treatment outcomes. This trial is a non-blind, randomized clinical trial with parallel design. Methods: Clients were recruited from a local methadone maintenance clinic within the first 30 days of treatment. All participants completed a comprehensive, computerized neuropsychological assessment (MicroCog) at the time they entered the clinical trial. Participants were randomized to receive 12 months of either standard methadone maintenance treatment or methadone maintenance treatment with an integrated web-based intervention as part of treatment. The aims of the current study were to (a) characterize the cognitive functioning of clients entering methadone maintenance treatment, (b) evaluate the impact of cognitive functioning on the primary outcomes of treatment retention and opioid abstinence, and (c) determine whether cognitive functioning had a differential impact on these outcomes across treatment conditions. Randomization was non-blind and participants were stratified on past-month cocaine use and prior history of methadone, LAAM, or buprenorphine treatment. Results: Eighty participants were randomized to each condition (N = 160). Mean scores on MicroCog scales fell in the average and low average ranges and there were no differences in scores between treatment groups. Lower scores on General Cognitive Proficiency predicted longer study retention (χ 2 = 5.03, p < .05), although this effect was quite small. Generalized linear modeling showed that scores on all MicroCog scales except for Spatial Processing significantly predicted opioid abstinence (defined as percent of total weeks and percent of tested weeks with continuous abstinence), with lower scores predicting smaller percentages of continuous weeks of abstinence. This pattern was not evident in regression analyses in which abstinence was defined as number of total weeks of abstinence. An interaction effect was observed, whereby lower cognitive scores predicted lower levels of abstinence for participants in standard methadone maintenance treatment, but not for those who received the web-based intervention as part of methadone maintenance treatment. Conclusions: Technology-based interventions may hold promise for minimizing the impact of poorer cognitive functioning on treatment outcomes.


Psychology of Addictive Behaviors | 2016

A mixed-methods evaluation of the feasibility, acceptability, and preliminary efficacy of a mobile intervention for methadone maintenance clients.

Honoria Guarino; Michelle C. Acosta; Lisa A. Marsch; Haiyi Xie; Yesenia Aponte-Melendez

Despite the recent explosion of behavioral health interventions delivered on mobile devices, little is known about factors that make such applications practical, engaging and useful to their target audience. This study reports on the feasibility, acceptability and preliminary efficacy of a prototype of a novel, interactive mobile psychosocial intervention to reduce problematic drug use among clients in methadone maintenance treatment (MMT). A mixed-methods pilot study with new MMT clients (n = 25) indicated that the mobile intervention approach was feasible, and that participants found the intervention highly acceptable and useful. On 100-point visual analog scale (VAS) items, participants reported high levels of liking the program (M = 75.6), and endorsed it as useful (M = 77.5), easy to use (M = 80.7), and containing a significant amount of new information (M = 74.8). When compared with 25 study participants who received standard MMT alone, pilot participants rated their treatment significantly higher in interestingness and usefulness, and were significantly more satisfied with their treatment. In qualitative interviews, participants reported using the mobile intervention in a range of settings, including during times of heightened risk for substance use, and finding it helpful in managing drug cravings. Additionally, pilot participants showed evidence of increased treatment retention and abstinence from illicit opioids (in terms of effect size) over a 3-month period relative to those in standard MMT, suggesting the applications potential to enhance treatment outcomes. These promising findings suggest that an evidence-based mobile therapeutic tool addressing substance use may appeal to drug treatment clients and have clinical utility as an adjunct to formal treatment.


Behavior Therapy | 2017

Web-Delivered CBT Reduces Heavy Drinking in OEF-OIF Veterans in Primary Care With Symptomatic Substance Use and PTSD☆☆☆

Michelle C. Acosta; Kyle Possemato; Stephen A. Maisto; Lisa A. Marsch; Kimberly Barrie; Larry J. Lantinga; Chunki Fong; Haiyi Xie; Michael J. Grabinski; Andrew Rosenblum

Veterans from conflicts such as the wars in Iraq and Afghanistan commonly return with behavioral health problems, including posttraumatic stress disorder (PTSD) and hazardous or harmful substance use. Unfortunately, many veterans experience significant barriers to receiving evidence-based treatment, including poor treatment motivation, concerns about stigma, and lack of access to appropriate care. To address this need, the current study developed and evaluated a web-based self-management intervention based on cognitive behavioral therapy (CBT), targeting PTSD symptoms and hazardous substance use in a group of symptomatic combat veterans enrolled in VA primary care. Veterans with PTSD/subthreshold PTSD and hazardous substance use were randomized to primary care treatment as usual (TAU; n = 81) or to TAU plus a web-based CBT intervention called Thinking Forward (n = 81). Thinking Forward consisted of 24 sections (approximately 20 minutes each), accessible over 12 weeks. Participants completed baseline and 4-, 8-, 12-, 16-, and 24-week follow-up assessments. Three primary outcomes of PTSD, alcohol and other drug use, and quality of life were examined. Significant treatment effects were found for heavy drinking, but not for PTSD or quality of life. The effect of the intervention on heavy drinking was mediated by intervening increases in coping, social support, self-efficacy, and hope for the future. These results demonstrate the promise of a web-based, self-management intervention for difficult-to-engage OEF/OIF veterans with behavioral health and substance use concerns.


Pain | 2016

Patient vs provider reports of aberrant medication-taking behavior among opioid-treated patients with chronic pain who report misusing opioid medication.

Valentina Nikulina; Honoria Guarino; Michelle C. Acosta; Lisa A. Marsch; Cassandra Syckes; Sarah K. Moore; Russell K. Portenoy; Ricardo A. Cruciani; Dennis C. Turk; Andrew Rosenblum

Abstract During long-term opioid therapy for chronic noncancer pain, monitoring medication adherence of patients with a history of aberrant opioid medication-taking behaviors (AMTB) is an essential practice. There is limited research, however, into the concordance among existing monitoring tools of self-report, physician report, and biofluid screening. This study examined associations among patient and provider assessments of AMTB and urine drug screening using data from a randomized trial of a cognitive–behavioral intervention designed to improve medication adherence and pain-related outcomes among 110 opioid-treated patients with chronic pain who screened positive for AMTB and were enrolled in a pain program. Providers completed the Aberrant Behavior Checklist (ABC) and patients completed the Current Opioid Misuse Measure (COMM) and the Chemical Coping Inventory (CCI). In multivariate analyses, ABC scores were compared with COMM and CCI scores, while controlling for demographics and established risk factors for AMTB, such as pain severity. Based on clinical cutoffs, 84% of patients reported clinically significant levels of AMTB and providers rated 36% of patients at elevated levels. Provider reports of AMTB were not correlated with COMM or CCI scores. However, the ABC ratings of experienced providers (nurse practitioners/attending physicians) were higher than those of less experienced providers (fellows) and were correlated with CCI scores and risk factors for AMTB. Associations between patient- and provider-reported AMTB and urine drug screening results were low and largely nonsignificant. In conclusion, concordance between patient and provider reports of AMTB among patients with chronic pain prescribed opioid medication varied by provider level of training.


Drug and Alcohol Dependence | 2015

Predictors of outcome from computer-based treatment for substance use disorders: Results from a randomized clinical trial

Sunny Jung Kim; Lisa A. Marsch; Honoria Guarino; Michelle C. Acosta; Yesenia Aponte-Melendez

BACKGROUND Although empirical evidence for the effectiveness of technology-mediated interventions for substance use disorders is rapidly growing, the role of baseline characteristics of patients in predicting treatment outcomes of a technology-based therapy is largely unknown. METHOD Participants were randomly assigned to either standard methadone maintenance treatment or reduced standard treatment combined with the computer-based therapeutic education system (TES). An array of demographic and behavioral characteristics of participants (N=160) was measured at baseline. Opioid abstinence and treatment retention were measured weekly for a 52-week intervention period. Generalized linear model and Cox-regression were used to estimate the predictive roles of baseline characteristics in predicting treatment outcomes. RESULTS We found significant predictors of opioid abstinence and treatment retention within and across conditions. Among 21 baseline characteristics of participants, employment status, anxiety, and ambivalent attitudes toward substance use predicted better opioid abstinence in the reduced-standard-plus-TES condition compared to standard treatment. Participants who had used cocaine/crack in the past 30 days at baseline showed lower dropout rates in standard treatment, whereas those who had not used exhibited lower dropout rates in the reduced-standard-plus-TES condition. CONCLUSIONS This study is the first randomized controlled trial, evaluating over a 12-month period, how various aspects of participant characteristics impact outcomes for treatments that do or do not include technology-based therapy. Compared to standard alone treatment, including TES as part of the care was preferable for patients who were employed, highly anxious, and ambivalent about substance use and did not produce worse outcomes for any subgroups of participants.

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Honoria Guarino

National Development and Research Institutes

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Andrew Rosenblum

National Development and Research Institutes

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Yesenia Aponte-Melendez

National Development and Research Institutes

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Dennis C. Turk

University of Washington

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Kathlene Trello-Rishel

University of Texas Southwestern Medical Center

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Leanne Tamm

Cincinnati Children's Hospital Medical Center

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Paula D. Riggs

University of Colorado Denver

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