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Schmitz JM, Stotts AL, Vujanovic AA, Yoon JH, Webber HE, Lane SD, Weaver MF, Vincent J, Suchting R, Green CE. Contingency management plus acceptance and commitment therapy for initial cocaine abstinence: Results of a sequential multiple assignment randomized trial (SMART). Drug Alcohol Depend 2024; 256:111078. [PMID: 38309089 DOI: 10.1016/j.drugalcdep.2023.111078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 02/05/2024]
Abstract
BACKGROUND This study tested an adaptive intervention for optimizing abstinence outcomes over phases of treatment for cocaine use disorder using a SMART design. Phase 1 assessed whether 4 weeks of contingency management (CM) improved response with the addition of Acceptance and Commitment Therapy (ACT). Phase 2 assessed pharmacological augmentation with modafinil (MOD) vs. placebo (PLA) for individuals not achieving abstinence during Phase 1. METHOD For Phase 1 of treatment, participants (N=118) were randomly allocated to ACT+CM or Drug Counseling (DC+CM), the comparison condition. At week 4, treatment response was defined as the submission of six consecutive cocaine-negative urine drug screens (UDS). Phase 1 non-responders were re-randomized to MOD or PLA as adjunct to their initial treatment. Phase 1 responders continued receiving their initial treatment. Primary outcomes included response rate and proportion of cocaine-negative UDS for Phase 1 and 2. Analyses used Bayesian inference with 80% pre-specified as the posterior probability (PP) threshold constituting moderate evidence that an effect exists. RESULTS Phase 1 response was higher in the ACT+CM group (24.5%) compared to the DC+CM group (17.5%; PP = 84.5%). In Phase 2, the proportion of cocaine-negative UDS among Phase 1 responders did not differ by initial treatment (PP = 61.8%) but remained higher overall compared to Phase 1 non-responders (PPs > 99%). No evidence of an effect favoring augmentation with MOD was observed. DISCUSSION Adding ACT to CM increased abstinence initiation. Initial responders were more likely to remain abstinent compared to initial non-responders, for whom modafinil was not an effective pharmacotherapy augmentation strategy.
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Affiliation(s)
- Joy M Schmitz
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States.
| | - Angela L Stotts
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States; Department of Family and Community Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, United States
| | - Anka A Vujanovic
- Department of Psychological and Brain Sciences, Texas A&M University, United States
| | - Jin H Yoon
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States
| | - Heather E Webber
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States
| | - Scott D Lane
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States
| | - Michael F Weaver
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States
| | - Jessica Vincent
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States
| | - Robert Suchting
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States
| | - Charles E Green
- Faillace Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, United States; UTHealth Center for Clinical Research & Evidence-Based Medicine, United States
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Roddy MK, Pfammatter AF, Mayberry LS. Optimizing adaptive stepped-care interventions to change adults' health behaviors: A systematic review. J Clin Transl Sci 2023; 7:e190. [PMID: 37745938 PMCID: PMC10514691 DOI: 10.1017/cts.2023.618] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
Chronic diseases are ubiquitous and costly in American populations. Interventions targeting health behavior change to manage chronic diseases are needed, but previous efforts have fallen short of producing meaningful change on average. Adaptive stepped-care interventions, that tailor treatment based on the needs of the individual over time, are a promising new area in health behavior change. We therefore conducted a systematic review of tests of adaptive stepped-care interventions targeting health behavior changes for adults with chronic diseases. We identified 9 completed studies and 13 research protocols testing adaptive stepped-care interventions for health behavior change. The most common health behaviors targeted were substance use, weight management, and smoking cessation. All identified studies test intermediary tailoring for treatment non-responders via sequential multiple assignment randomized trials (SMARTs) or singly randomized trials (SRTs); none test baseline tailoring. From completed studies, there were few differences between embedded adaptive interventions and minimal differences between those classified as treatment responders and non-responders. In conclusion, updates to this work will be needed as protocols identified here publish results. Future research could explore baseline tailoring variables, apply methods to additional health behaviors and target populations, test tapering interventions for treatment responders, and consider adults' context when adapting interventions.
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Affiliation(s)
- McKenzie K. Roddy
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Angela F. Pfammatter
- College of Education, Health, and Human Sciences, University of Tennessee, Knoxville, TN, USA
| | - Lindsay S. Mayberry
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Center for Health Behavior and Health Education, Vanderbilt University Medical Center, Nashville, TN, USA
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3
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Webber HE, Yoon JH, de Dios C, Suchting R, Dang V, Versace F, Green CE, Wardle MC, Lane SD, Schmitz JM. Assessing cocaine motivational value: Comparison of brain reactivity bias toward cocaine cues and cocaine demand. Exp Clin Psychopharmacol 2023; 31:861-867. [PMID: 36480395 PMCID: PMC10247896 DOI: 10.1037/pha0000622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The behavioral economic measure drug demand and the neural measure late positive potential (LPP) are two measures of motivational value that have been associated with drug relapse risk and treatment outcomes. Despite having overlapping themes, no studies have directly compared drug demand and LPP. Participants (N = 59) included treatment-seeking individuals with cocaine use disorder that had completed both a baseline cocaine demand task and an electroencephalogram (EEG) picture-viewing task of drug-related and pleasant picture cues. Associations between the LPP difference score amplitude (drug-pleasant) and five demand indices (Q₀, essential value [EV], Omax, Pmax, and breakpoint [BP]) were evaluated via Bayesian generalized linear modeling. Positive associations (posterior probabilities ≥ 75%) were found between LPP amplitude and four demand indices (Q₀, EV, Omax, BP). These results suggest that individuals who attach greater relevance to cocaine cues also exhibit greater valuation of cocaine reward. Implications for incorporating methodology from behavioral science and brain imaging are discussed. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Heather E. Webber
- Faillace Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston TX
| | - Jin H. Yoon
- Faillace Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston TX
| | - Constanza de Dios
- Faillace Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston TX
| | - Robert Suchting
- Faillace Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston TX
| | - Vincent Dang
- Faillace Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston TX
| | - Francesco Versace
- Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston TX
| | - Charles E. Green
- Department of Pediatrics, University of Texas Health Science Center at Houston, Houston TX
| | - Margaret C. Wardle
- Department of Psychology, University of Illinois at Chicago, Chicago, ILs
| | - Scott D. Lane
- Faillace Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston TX
| | - Joy M. Schmitz
- Faillace Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston TX
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4
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Ramineni V, Millroth P, Iyadurai L, Jaki T, Kingslake J, Highfield J, Summers C, Bonsall MB, Holmes EA. Treating intrusive memories after trauma in healthcare workers: a Bayesian adaptive randomised trial developing an imagery-competing task intervention. Mol Psychiatry 2023; 28:2985-2994. [PMID: 37100869 PMCID: PMC10131522 DOI: 10.1038/s41380-023-02062-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/28/2023]
Abstract
Intensive care unit (ICU) staff continue to face recurrent work-related traumatic events throughout the COVID-19 pandemic. Intrusive memories (IMs) of such traumatic events comprise sensory image-based memories. Harnessing research on preventing IMs with a novel behavioural intervention on the day of trauma, here we take critical next steps in developing this approach as a treatment for ICU staff who are already experiencing IMs days, weeks, or months post-trauma. To address the urgent need to develop novel mental health interventions, we used Bayesian statistical approaches to optimise a brief imagery-competing task intervention to reduce the number of IMs. We evaluated a digitised version of the intervention for remote, scalable delivery. We conducted a two-arm, parallel-group, randomised, adaptive Bayesian optimisation trial. Eligible participants worked clinically in a UK NHS ICU during the pandemic, experienced at least one work-related traumatic event, and at least three IMs in the week prior to recruitment. Participants were randomised to receive immediate or delayed (after 4 weeks) access to the intervention. Primary outcome was the number of IMs of trauma during week 4, controlling for baseline week. Analyses were conducted on an intention-to-treat basis as a between-group comparison. Prior to final analysis, sequential Bayesian analyses were conducted (n = 20, 23, 29, 37, 41, 45) to inform early stopping of the trial prior to the planned maximum recruitment (n = 150). Final analysis (n = 75) showed strong evidence for a positive treatment effect (Bayes factor, BF = 1.25 × 106): the immediate arm reported fewer IMs (median = 1, IQR = 0-3) than the delayed arm (median = 10, IQR = 6-16.5). With further digital enhancements, the intervention (n = 28) also showed a positive treatment effect (BF = 7.31). Sequential Bayesian analyses provided evidence for reducing IMs of work-related trauma for healthcare workers. This methodology also allowed us to rule out negative effects early, reduced the planned maximum sample size, and allowed evaluation of enhancements. Trial Registration NCT04992390 ( www.clinicaltrials.gov ).
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Affiliation(s)
- Varsha Ramineni
- Department of Psychology, Uppsala University, Uppsala, Uppsala County, Sweden
- P1vital Products Ltd, Wallingford, Oxfordshire, UK
| | - Philip Millroth
- Department of Psychology, Uppsala University, Uppsala, Uppsala County, Sweden
| | | | - Thomas Jaki
- MRC Biostatistics Unit, University of Cambridge, Cambridge, Cambridgeshire, UK
- University of Regensburg, Regensburg, Bavaria, Germany
| | | | | | - Charlotte Summers
- Department of Medicine, University of Cambridge, Cambridge, Cambridgeshire, UK
| | - Michael B Bonsall
- Department of Biology, University of Oxford, Oxford, Oxfordshire, UK
| | - Emily A Holmes
- Department of Psychology, Uppsala University, Uppsala, Uppsala County, Sweden.
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5
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Walton MA, Carter PM, Seewald L, Ngo Q, Battisti KA, Pearson C, Blow FC, Cunningham RM, Bourque C, Kidwell KM. Adaptive interventions for alcohol misuse and violent behaviors among adolescents and emerging adults in the emergency department: A sequential multiple assignment randomized controlled trial protocol. Contemp Clin Trials 2023; 130:107218. [PMID: 37148999 PMCID: PMC10947472 DOI: 10.1016/j.cct.2023.107218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 05/08/2023]
Abstract
Alcohol use and violent behaviors among youth are associated with morbidity and mortality. An emergency department (ED) visit provides an opportunity to initiate prevention efforts. Despite promising findings from our single session SafERteens brief intervention (BI), impact is limited by modest effect sizes, with data lacking on optimal boosters to enhance effects. This paper describes the protocol for a sequential, multiple assignment, randomized trial (SMART). Adolescents and emerging adults (ages 14-20) in the ED screening positive for alcohol use and violent behaviors (physical aggression) were randomly assigned to: 1) SafERteens BI + Text Messaging (TM), or 2) SafERteens BI + remote Health Coach (HC). Participants completed weekly surveys over 8 weeks after the ED visit to tailor intervention content and measure mechanisms of change. At one-month, intervention response/non-response is determined (e.g., binge drinking or violent behaviors). Responders are re-randomized to continued intervention condition (e.g., maintenance) or minimized condition (e.g., stepped down). Non-responders are re-randomized to continued condition (e.g., maintenance), or intensified condition (e.g., stepped up). Outcomes were measured at 4 and 8 months, including primary outcomes of alcohol consumption and violence, with secondary outcomes of alcohol consequences and violence consequences. Although the original goal was to enroll 700 participants, COVID-19 impacts on research diminished recruitment in this trial (enrolled n = 400). Nonetheless, the proposed SMART is highly innovative by blending real-time assessment methodologies with adaptive intervention delivery among teens with comorbid alcohol misuse and violent behaviors. Findings will inform the content and timing booster interventions to alter risk behavior trajectories. Trial Registration:ClinicalTrials.govNCT03344666. University of Michigan # HUM00109156.
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Affiliation(s)
- Maureen A Walton
- Injury Prevention Center, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd. Building 10, Ann Arbor, MI 48109, USA; Addiction Center, Department of Psychiatry, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd. Building 16, Ann Arbor, MI 48109, USA.
| | - Patrick M Carter
- Injury Prevention Center, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd. Building 10, Ann Arbor, MI 48109, USA; Department of Emergency Medicine, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd Bldg 10-G080, Ann Arbor, MI 48109-2800, USA
| | - Laura Seewald
- Injury Prevention Center, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd. Building 10, Ann Arbor, MI 48109, USA; Department of Emergency Medicine, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd Bldg 10-G080, Ann Arbor, MI 48109-2800, USA
| | - Quyen Ngo
- Hazelden Betty Ford Foundation, 15251 Pleasant Valley Road, Center City, MN 55012, USA
| | - Katherine A Battisti
- Department of Pediatrics, Central Michigan University and Covenant Hospital, Saginaw, MI 48602, USA
| | - Claire Pearson
- Wayne State University, Department of Emergency Medicine, and St. John Hospital, Detroit, MI 48109, USA
| | - Frederic C Blow
- Addiction Center, Department of Psychiatry, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd. Building 16, Ann Arbor, MI 48109, USA
| | - Rebecca M Cunningham
- Injury Prevention Center, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd. Building 10, Ann Arbor, MI 48109, USA; Department of Emergency Medicine, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd Bldg 10-G080, Ann Arbor, MI 48109-2800, USA
| | - Carrie Bourque
- Addiction Center, Department of Psychiatry, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd. Building 16, Ann Arbor, MI 48109, USA
| | - Kelley M Kidwell
- Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109, USA
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6
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Bigirumurame T, Uwimpuhwe G, Wason J. Sequential multiple assignment randomized trial studies should report all key components: a systematic review. J Clin Epidemiol 2021; 142:152-160. [PMID: 34763037 DOI: 10.1016/j.jclinepi.2021.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 10/15/2021] [Accepted: 11/03/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Sequential Multiple Assignment Randomised Trial (SMART) designs allow multiple randomisations of participants; this allows assessment of stage-specific questions (individual randomisations) and adaptive interventions (i.e. treatment strategies). We assessed the quality of reporting of the information required to design SMART studies. STUDY DESIGN AND SETTING We systematically searched four databases (PubMed, Ovid, Web of Science and Scopus) for all trial reports, protocols, reviews, and methodological papers which mentioned SMART designs up to June 15, 2020. RESULTS Of the 157 selected records, 12 (7.64%) were trial reports, 24 (15.29%) were study protocols, 91 (58%) were methodological papers, and 30 (19.1%) were review papers. All these trials were powered using stage-specific aims. Only four (33.33%) of these trials reported parameters required for sample size calculations. A small number of the trials (16.67 %) were interested in determining the best embedded adaptive interventions. Most of the trials did not report information about multiple testing adjustment. Furthermore, most of records reported designs that were mainly focused on stage-specific aims. CONCLUSIONS Some features of SMART designs are seldomly reported and/or used. Furthermore, studies using this design tend to not adequately report information about all the design parameters, limiting their transparency and interpretability.
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Affiliation(s)
- Theophile Bigirumurame
- Biostatistics Research Group, Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, UK.
| | | | - James Wason
- Biostatistics Research Group, Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, UK
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7
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Morciano A, Moerbeek M. Optimal allocation to treatments in a sequential multiple assignment randomized trial. Stat Methods Med Res 2021; 30:2471-2484. [PMID: 34554015 PMCID: PMC8649474 DOI: 10.1177/09622802211037066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
One of the main questions in the design of a trial is how many subjects should be
assigned to each treatment condition. Previous research has shown that equal
randomization is not necessarily the best choice. We study the optimal
allocation for a novel trial design, the sequential multiple assignment
randomized trial, where subjects receive a sequence of treatments across various
stages. A subject's randomization probabilities to treatments in the next stage
depend on whether he or she responded to treatment in the current stage. We
consider a prototypical sequential multiple assignment randomized trial design
with two stages. Within such a design, many pairwise comparisons of treatment
sequences can be made, and a multiple-objective optimal design strategy is
proposed to consider all such comparisons simultaneously. The optimal design is
sought under either a fixed total sample size or a fixed budget. A Shiny App is
made available to find the optimal allocations and to evaluate the efficiency of
competing designs. As the optimal design depends on the response rates to
first-stage treatments, maximin optimal design methodology is used to find
robust optimal designs. The proposed methodology is illustrated using a
sequential multiple assignment randomized trial example on weight loss
management.
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Affiliation(s)
| | - Mirjam Moerbeek
- Department of Methodology and Statistics, Utrecht University, the Netherlands
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8
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Yoon JH, Suchting R, de Dios C, Vincent JN, McKay SA, Lane SD, Schmitz JM. Decreased cocaine demand following contingency management treatment. Drug Alcohol Depend 2021; 226:108883. [PMID: 34198136 DOI: 10.1016/j.drugalcdep.2021.108883] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/29/2021] [Accepted: 06/02/2021] [Indexed: 02/08/2023]
Abstract
A hypothetical cocaine purchasing task (CocPT) was used to assess changes in cocaine demand in the context of contingency management (CM) treatment for cocaine use disorder (CUD). Participants (N = 89) were treatment-seeking individuals with CUD receiving 4 weeks of abstinence-based, high-magnitude CM. Treatment response (vs. non-response) was operationally defined as the submission of 6 consecutive cocaine-negative urine samples across two weeks. The CPT was assessed at baseline, week 2, and week 5. Demand data were well described by the exponentiated demand model, and baseline demand indices (Q0, Pmax, breakpoint, essential value) were significantly associated with self-report measures of cocaine use. The probability of being a zero-responder reporting zero cocaine consumption at all prices significantly increased over the course of treatment, and was greater among treatment responders vs. non-responders. Among non-zero demand data, decreases in Omax, Pmax, breakpoint, and essential value were observed over the course of CM treatment, favoring responders. To our knowledge, this is the first study to assess change in cocaine demand in the context of CM treatment targeting cocaine abstinence. Our results support the utility of cocaine demand as a measure for both identifying individuals with greater treatment need and tracking relapse risk over the course of treatment.
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Affiliation(s)
- Jin H Yoon
- Louis A. Faillace, MD, Department of Psychiatry & Behavioral Sciences, UTHealth McGovern Medical School, United States.
| | - Robert Suchting
- Louis A. Faillace, MD, Department of Psychiatry & Behavioral Sciences, UTHealth McGovern Medical School, United States
| | - Constanza de Dios
- Louis A. Faillace, MD, Department of Psychiatry & Behavioral Sciences, UTHealth McGovern Medical School, United States
| | - Jessica N Vincent
- Louis A. Faillace, MD, Department of Psychiatry & Behavioral Sciences, UTHealth McGovern Medical School, United States
| | - Sarah A McKay
- Louis A. Faillace, MD, Department of Psychiatry & Behavioral Sciences, UTHealth McGovern Medical School, United States
| | - Scott D Lane
- Louis A. Faillace, MD, Department of Psychiatry & Behavioral Sciences, UTHealth McGovern Medical School, United States
| | - Joy M Schmitz
- Louis A. Faillace, MD, Department of Psychiatry & Behavioral Sciences, UTHealth McGovern Medical School, United States
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9
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Reese ED, Kane LF, Paquette CE, Frohlich F, Daughters SB. Lost in Translation: the Gap Between Neurobiological Mechanisms and Psychosocial Treatment Research for Substance Use Disorders. CURRENT ADDICTION REPORTS 2021. [DOI: 10.1007/s40429-021-00382-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Yoon JH, de Dios C, Suchting R, Vincent JN, McKay SA, Lane SD, Schmitz JM. Initial development of a brief assessment of cocaine demand. Behav Pharmacol 2021; 32:351-355. [PMID: 33394690 PMCID: PMC8119298 DOI: 10.1097/fbp.0000000000000617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cocaine demand is a behavioral economic measure assessing drug reward value and motivation to use drug. The purpose of the current study was to develop a brief assessment of cocaine demand (BACD). Results from the BACD were compared with self-report measures of cocaine use. Participants consisted of treatment-seeking individuals with cocaine use disorder (N = 22). Results revealed that indices of brief demand were significantly associated with various self-report measures of cocaine use. Overall, these results support the utility of a BACD for assessing cocaine demand.
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Affiliation(s)
- Jin H Yoon
- Louis A. Faillace Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, Houston, Texas, USA
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11
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Blevins D, Carpenter KM, Martinez D, Mariani JJ, Levin FR. An adaptive clinical trial design for cocaine use disorder: Extended-release amphetamine salts for early behavioral intervention non-responders. Contemp Clin Trials 2020; 98:106187. [PMID: 33086160 PMCID: PMC7683357 DOI: 10.1016/j.cct.2020.106187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 09/17/2020] [Accepted: 10/15/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND/AIMS Cocaine use disorder (CUD) persists as a major public health problem in the United States. Response to evidence-based behavioral treatment has been shown to be predicted by dopaminergic dysfunction. Amphetamine formulations modulate dopaminergic systems and are one of the few agents with positive clinical findings but are associated with unique risks. We aimed to find a model for determining the most appropriate patients for treatment with mixed amphetamine salts-extended-release (MAS-ER) for CUD using an adaptive trial design. METHODS We are enrolling treatment-seeking adults ages 18-60 years. All eligible participants receive bi-weekly individual counseling augmented with a computer-based intervention based on the community reinforcement approach with contingency management (CRA + CM) for 4 weeks. Participants who fail to achieve abstinence are additionally randomly assigned to 10 weeks of either MAS-ER, titrated up to 80 mg daily, or placebo. All participants complete a follow-up assessment after 12 weeks. RESULTS Frequency and amount of cocaine use, cravings, retention, and quality of life will be compared between groups. The primary outcome will be having at least 3 weeks of urine toxicology-confirmed self-reported abstinence. Analyses will also be conducted to identify variables that may help identify who is more or less likely respond to the behavioral intervention during the first 4-weeks of treatment. CONCLUSIONS This trial more closely mimics a personalized medicine approach that is often used in clinical practice. It will help us understand who may be appropriate for psychostimulant therapy as an enhancement to evidence-based behavioral interventions, while limiting exposure to those who would respond to a psychosocial intervention alone. ClinicalTrials.gov Identifier: NCT01986075.
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Affiliation(s)
- Derek Blevins
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States of America; Division on Substance Use Disorders, New York State Psychiatric Institute, New York, NY, United States of America.
| | - Kenneth M Carpenter
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States of America; Division on Substance Use Disorders, New York State Psychiatric Institute, New York, NY, United States of America
| | - Diana Martinez
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States of America; Division on Substance Use Disorders, New York State Psychiatric Institute, New York, NY, United States of America
| | - John J Mariani
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States of America; Division on Substance Use Disorders, New York State Psychiatric Institute, New York, NY, United States of America
| | - Frances R Levin
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States of America; Division on Substance Use Disorders, New York State Psychiatric Institute, New York, NY, United States of America
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12
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Chao YC, Tran Q, Tsodikov A, Kidwell KM. Joint modeling and multiple comparisons with the best of data from a SMART with survival outcomes. Biostatistics 2020; 23:294-313. [PMID: 32659784 PMCID: PMC9770092 DOI: 10.1093/biostatistics/kxaa025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 12/25/2022] Open
Abstract
A dynamic treatment regimen (DTR) is a sequence of decision rules that can alter treatments or doses based on outcomes from prior treatment. In the case of two lines of treatment, a DTR specifies first-line treatment, and second-line treatment for responders and treatment for non-responders to the first-line treatment. A sequential, multiple assignment, randomized trial (SMART) is one such type of trial that has been designed to assess DTRs. The primary goal of our project is to identify the treatments, covariates, and their interactions result in the best overall survival rate. Many previously proposed methods to analyze data with survival outcomes from a SMART use inverse probability weighting and provide non-parametric estimation of survival rates, but no other information. Other methods have been proposed to identify and estimate the optimal DTR, but inference issues were seldom addressed. We apply a joint modeling approach to provide unbiased survival estimates as a mechanism to quantify baseline and time-varying covariate effects, treatment effects, and their interactions within regimens. The issue of multiple comparisons at specific time points is addressed using multiple comparisons with the best method.
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Affiliation(s)
| | - Qui Tran
- Amgen Inc., 1 Amgen Center Drive, Thousand Oaks, CA 91320-1799,
USA
| | - Alex Tsodikov
- Department of Biostatistics, University of Michigan, 1415
Washington Heights, Ann Arbor, MI 48109-2029, USA
| | - Kelley M Kidwell
- Department of Biostatistics, University of Michigan, 1415
Washington Heights, Ann Arbor, MI 48109-2029, USA
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Yoon JH, Suchting R, McKay SA, San Miguel GG, Vujanovic AA, Stotts AL, Lane SD, Vincent JN, Weaver MF, Lin A, Schmitz JM. Baseline cocaine demand predicts contingency management treatment outcomes for cocaine-use disorder. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2020; 34:164-174. [PMID: 31233323 PMCID: PMC6928450 DOI: 10.1037/adb0000475] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cocaine use disorder (CUD) is a significant public health issue. Behavioral interventions such as contingency management (CM) have been demonstrated to be highly effective in promoting cocaine abstinence. However, identifying individual characteristics associated with cocaine relapse may help improve treatment outcomes. Cocaine demand is a behavioral economic measure that shares a scientific foundation with CM. In the current study, we assessed baseline cocaine demand using a hypothetical cocaine purchasing task. Participants (N = 58) consisted of treatment-seeking individuals with CUD. All participants received 1 month of CM treatment for cocaine abstinence, and treatment responders were defined as presenting 6 consecutive cocaine negative urine samples from thrice weekly clinic visits. Demand data were well described by the exponentiated demand model. Indices of demand (intensity of demand [Q₀], elasticity [α]) were significantly associated with recent (last 30 days) cocaine use. Importantly, linear regression revealed that CM treatment nonresponders presented significantly higher Q₀ (p = .025). Subsequent quantile regression analyses examining the relationship between CM treatment response and Q₀ revealed statistically reliable effects of being a nonresponder across 3 of the lower percentiles (i.e., 15, 25, and 30). Overall, these findings provide further support for the utility of exponentiated demand model. To our knowledge, this is the first study to demonstrate an association between baseline demand and contingency management response and systematically extend the findings of prior demand research to a novel drug class, cocaine. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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Affiliation(s)
- Jin H Yoon
- Department of Psychiatry and Behavioral Sciences
| | | | | | | | | | | | - Scott D Lane
- Department of Psychiatry and Behavioral Sciences
| | | | | | - Austin Lin
- Department of Psychiatry and Behavioral Sciences
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Doorenbos AZ, Haozous EA, Jang MK, Langford D. Sequential multiple assignment randomization trial designs for nursing research. Res Nurs Health 2019; 42:429-435. [DOI: 10.1002/nur.21988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/22/2019] [Indexed: 01/24/2023]
Affiliation(s)
| | | | - Min Kyeong Jang
- College of NursingUniversity of Illinois‐ChicagoChicago Illinois
| | - Dale Langford
- Department of Anesthesiology and Pain MedicineUniversity of WashingtonSeattle Washington
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15
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Lacoste J, Michel G, Rollier S, Charles-Nicolas A. Cocaïne et cocaïnomanie. Enseignements récents et stratégies actuelles. ANNALES MEDICO-PSYCHOLOGIQUES 2018. [DOI: 10.1016/j.amp.2018.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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