1
|
Hill ML, Kline AC, Saraiya TC, Gette J, Ruglass LM, Norman SB, Back SE, Saavedra LM, Hien DA, Morgan-López AA. Cannabis use and trauma-focused treatment for co-occurring posttraumatic stress disorder and substance use disorders: A meta-analysis of individual patient data. J Anxiety Disord 2024; 102:102827. [PMID: 38266511 PMCID: PMC11138203 DOI: 10.1016/j.janxdis.2024.102827] [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] [Received: 09/01/2023] [Revised: 12/22/2023] [Accepted: 01/05/2024] [Indexed: 01/26/2024]
Abstract
High rates of cannabis use among people with posttraumatic stress disorder (PTSD) have raised questions about the efficacy of evidence-based PTSD treatments for individuals reporting cannabis use, particularly those with co-occurring alcohol or other substance use disorders (SUDs). Using a subset of four randomized clinical trials (RCTs) included in Project Harmony, an individual patient meta-analysis of 36 RCTs (total N = 4046) of treatments for co-occurring PTSD+SUD, we examined differences in trauma-focused (TF) and non-trauma-focused (non-TF) treatment outcomes for individuals who did and did not endorse baseline cannabis use (N = 410; 70% male; 33.2% endorsed cannabis use). Propensity score-weighted mixed effects modeling evaluated main and interactive effects of treatment assignment (TF versus non-TF) and baseline cannabis use (yes/no) on attendance rates and within-treatment changes in PTSD, alcohol, and non-cannabis drug use severity. Results revealed significant improvements across outcomes among participants in all conditions, with larger PTSD symptom reductions but lower attendance among individuals receiving TF versus non-TF treatment in both cannabis groups. Participants achieved similar reductions in alcohol and drug use across all conditions. TF outperformed non-TF treatments regardless of recent cannabis use, underscoring the importance of reducing barriers to accessing TF treatments for individuals reporting cannabis use.
Collapse
Affiliation(s)
- Melanie L Hill
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA.
| | | | - Tanya C Saraiya
- Center of Alcohol & Substance Use Studies, Rutgers University, Piscataway, NJ, USA; Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Jordan Gette
- Center of Alcohol & Substance Use Studies, Rutgers University, Piscataway, NJ, USA
| | - Lesia M Ruglass
- Center of Alcohol & Substance Use Studies, Rutgers University, Piscataway, NJ, USA; Department of Psychology, The City College of New York, New York, NY, USA
| | - Sonya B Norman
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA; Veterans Affairs San Diego Healthcare System, San Diego, CA, USA; National Center for PTSD, Executive Division, White River Junction, VT, USA
| | - Sudie E Back
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA; Ralph H. Johnson Veterans Affairs Healthcare System, Charleston, SC, USA
| | | | - Denise A Hien
- Center of Alcohol & Substance Use Studies, Rutgers University, Piscataway, NJ, USA
| | | |
Collapse
|
2
|
Vujanovic AA, Back SE, Leonard SJ, Zoller L, Kaysen DL, Norman SB, Flanagan JC, Schmitz JM, Resick P. Mental Health Clinician Practices and Perspectives on Treating Adults with Co-Occurring Posttraumatic Stress and Substance Use Disorders. J Dual Diagn 2023; 19:189-198. [PMID: 37796916 DOI: 10.1080/15504263.2023.2260338] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
OBJECTIVE Posttraumatic stress disorder (PTSD) and substance use disorders (SUD) commonly co-occur and represent a complex, challenging clinical comorbidity. Meta-analytic studies and systematic reviews suggest that trauma-focused treatments are more efficacious than non-trauma focused interventions for co-occurring PTSD/SUD. However, relatively little is known about mental health clinicians' practices or preferences for treating co-occurring PTSD/SUD. The present study aimed to describe the current clinical practices of mental health clinicians who treat PTSD and/or SUD-related conditions and to assess interest in novel integrative treatments for PTSD/SUD. METHODS Licensed mental health clinicians (N = 76; Mage = 39.59, SD = 8.14) who treat PTSD and/or SUD completed an anonymous online survey from April 2021 to July 2021. RESULTS The majority (61.8%) of clinicians reported using integrative treatments for PTSD/SUD. The most commonly used trauma-focused treatments were 1) Cognitive Processing Therapy (CPT: 71.1%) and 2) Prolonged Exposure Therapy (PE: 68.4%) for PTSD. Approximately half (51.3%) of clinicians endorsed using Relapse Prevention (RP) for SUD. The vast majority (97.4%) of clinicians were somewhat or very interested in a new integrative CPT-RP intervention, and 94.7% of clinicians believed patients would be interested in a CPT-RP intervention. In the absence of an available evidence-based integrative treatment using CPT, 84.0% of clinicians reported modifying extant treatment protocols on their own to address PTSD and SUD concurrently. CONCLUSIONS The findings demonstrate mental health clinician support of integrative treatments for PTSD/SUD. The most commonly used trauma-focused intervention was CPT and clinicians expressed strong interest in an integrative intervention that combines CPT and RP. Implications for future treatment development are discussed.
Collapse
Affiliation(s)
- Anka A Vujanovic
- Texas A&M University, College Station, TX, USA
- University of Houston, Houston, TX, USA
| | - Sudie E Back
- Medical University of South Carolina, Charleston, SC, USA
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | | | | | - Debra L Kaysen
- Stanford University School of Medicine, Palo Alto, CA, USA
- National Center for PTSD, Executive Division, White River Junction, VT, USA
| | - Sonya B Norman
- National Center for PTSD, Executive Division, White River Junction, VT, USA
- San Diego School of Medicine, San Diego, CA, USA
- VA Center of Excellence for Stress and Mental Health, San Diego, CA, USA
| | - Julianne C Flanagan
- Medical University of South Carolina, Charleston, SC, USA
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Joy M Schmitz
- University of Texas Health Science Center at Houston, Houston, TX, USA
| | | |
Collapse
|
3
|
Houghton DC, Spratt HM, Keyser-Marcus L, Bjork JM, Neigh GN, Cunningham KA, Ramey T, Moeller FG. Behavioral and neurocognitive factors distinguishing post-traumatic stress comorbidity in substance use disorders. Transl Psychiatry 2023; 13:296. [PMID: 37709748 PMCID: PMC10502088 DOI: 10.1038/s41398-023-02591-3] [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] [Received: 10/26/2022] [Revised: 08/08/2023] [Accepted: 08/25/2023] [Indexed: 09/16/2023] Open
Abstract
Significant trauma histories and post-traumatic stress disorder (PTSD) are common in persons with substance use disorders (SUD) and often associate with increased SUD severity and poorer response to SUD treatment. As such, this sub-population has been associated with unique risk factors and treatment needs. Understanding the distinct etiological profile of persons with co-occurring SUD and PTSD is therefore crucial for advancing our knowledge of underlying mechanisms and the development of precision treatments. To this end, we employed supervised machine learning algorithms to interrogate the responses of 160 participants with SUD on the multidimensional NIDA Phenotyping Assessment Battery. Significant PTSD symptomatology was correctly predicted in 75% of participants (sensitivity: 80%; specificity: 72.22%) using a classification-based model based on anxiety and depressive symptoms, perseverative thinking styles, and interoceptive awareness. A regression-based machine learning model also utilized similar predictors, but failed to accurately predict severity of PTSD symptoms. These data indicate that even in a population already characterized by elevated negative affect (individuals with SUD), especially severe negative affect was predictive of PTSD symptomatology. In a follow-up analysis of a subset of 102 participants who also completed neurocognitive tasks, comorbidity status was correctly predicted in 86.67% of participants (sensitivity: 91.67%; specificity: 66.67%) based on depressive symptoms and fear-related attentional bias. However, a regression-based analysis did not identify fear-related attentional bias as a splitting factor, but instead split and categorized the sample based on indices of aggression, metacognition, distress tolerance, and interoceptive awareness. These data indicate that within a population of individuals with SUD, aberrations in tolerating and regulating aversive internal experiences may also characterize those with significant trauma histories, akin to findings in persons with anxiety without SUD. The results also highlight the need for further research on PTSD-SUD comorbidity that includes additional comparison groups (i.e., persons with only PTSD), captures additional comorbid diagnoses that may influence the PTSD-SUD relationship, examines additional types of SUDs (e.g., alcohol use disorder), and differentiates between subtypes of PTSD.
Collapse
Affiliation(s)
- David C Houghton
- Center for Addiction Sciences and Therapeutics, University of Texas Medical Branch, Galveston, TX, USA.
- Department of Psychiatry and Behavioral Sciences, University of Texas Medical Branch, Galveston, TX, USA.
| | - Heidi M Spratt
- Center for Addiction Sciences and Therapeutics, University of Texas Medical Branch, Galveston, TX, USA
- Department of Biostatistics and Data Science, University of Texas Medical Branch, Galveston, TX, USA
| | - Lori Keyser-Marcus
- Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, VA, USA
| | - James M Bjork
- Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, VA, USA
| | - Gretchen N Neigh
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA, USA
| | - Kathryn A Cunningham
- Center for Addiction Sciences and Therapeutics, University of Texas Medical Branch, Galveston, TX, USA
- Department of Psychiatry and Behavioral Sciences, University of Texas Medical Branch, Galveston, TX, USA
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA
| | - Tatiana Ramey
- Division of Therapeutics and Medical Consequences, National Institute of Drug Abuse, National Institutes of Health, Rockville, MD, USA
| | - F Gerard Moeller
- Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, VA, USA
| |
Collapse
|
5
|
Wolitzky-Taylor K, Smit T, Vujanovic AA, Zvolensky MJ. Transdiagnostic Processes Linking Posttraumatic Stress Disorder Symptoms to Alcohol Use Severity. J Dual Diagn 2023; 19:97-110. [PMID: 37389859 DOI: 10.1080/15504263.2023.2225373] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Objective: The high comorbidity between posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD) is well-established and complex. However, there is a need to explore transdiagnostic constructs that may underlie this association to better understand what accounts for this comorbidity and to inform treatment development. Method: Thus, the present study utilized a large, cross-sectional dataset (N = 513; Mage = 38.25 years, SD = 10.07; 49.9% female), based on national recruitment, to (1) examine whether the associations between PTSD symptom severity (PCL-5) and alcohol use severity (AUDIT) were statistically mediated by (a) anxiety sensitivity (SSASI); and (b) difficulties with emotion regulation (DERS-16); and (2) examine whether coping motives for drinking moderate this indirect effect. Sex assigned at birth was included as a covariate. Results: When examining the hypothesized mediators (SSASI and DERS-16) in separate models, there was a statistically significant indirect effect of PCL-5 on AUDIT through both SSASI and DERS. However, when both SSASI and DERS were entered into a model simultaneously, only SSASI served as a statistically significant mediator. Coping motives for drinking did not moderate the observed indirect effect. Conclusions: The current findings highlight anxiety sensitivity and emotion regulation as transdiagnostic processes that may explain, at least partially, the relationship between PTSD symptom severity and alcohol use; however, stronger evidence was evident for anxiety sensitivity. These findings may help inform the development of refined, streamlined interventions for PTSD and alcohol use that directly target these processes.
Collapse
Affiliation(s)
- Kate Wolitzky-Taylor
- Integrated Substance Abuse Programs, Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, University of California - Los Angeles, Los Angeles, California, USA
| | - Tanya Smit
- Department of Psychology, University of Houston, Houston, Texas, USA
| | - Anka A Vujanovic
- Department of Psychology, University of Houston, Houston, Texas, USA
- HEALTH Institute, University of Houston, Houston, Texas, USA
| | - Michael J Zvolensky
- Department of Psychology, University of Houston, Houston, Texas, USA
- HEALTH Institute, University of Houston, Houston, Texas, USA
- Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| |
Collapse
|
6
|
Hien DA, Morgan-López AA, Saavedra LM, Ruglass LM, Ye A, López-Castro T, Fitzpatrick S, Killeen TK, Norman SB, Ebrahimi CT, Back SE. Project Harmony: A Meta-Analysis With Individual Patient Data on Behavioral and Pharmacologic Trials for Comorbid Posttraumatic Stress and Alcohol or Other Drug Use Disorders. Am J Psychiatry 2023; 180:155-166. [PMID: 36475373 PMCID: PMC10016363 DOI: 10.1176/appi.ajp.22010071] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Treatment efficacy for co-occurring posttraumatic stress disorder (PTSD) and substance use disorders is well established, yet direct evidence for comparative effectiveness across treatments is lacking. The present study compared the effectiveness of several behavioral and pharmacological therapies for adults with co-occurring PTSD and alcohol or other drug use disorders. METHODS A systematic search of PsycINFO, MEDLINE, and ClinicalTrials.gov was conducted through December 2020 for trials targeting PTSD, alcohol or other drug use disorders, or both disorders (36 studies, N=4,046). Primary outcomes were severity scores for PTSD, alcohol use, and drug use, estimated via moderated nonlinear factor analysis. Propensity score weight-adjusted multilevel models were used. Model-predicted effect sizes were estimated for each treatment, and comparative effect sizes for each active arm against treatment as usual, at end of treatment and at 12-month follow-up. RESULTS Compared with treatment as usual, combining trauma-focused therapy and pharmacotherapy for substance use disorders showed the largest comparative effect sizes for PTSD severity (d=-0.92, 95% CI=-1.57, -0.30) and alcohol use severity (d=-1.10, 95% CI=-1.54, -0.68) at end of treatment. Other treatments with large comparative effect sizes included pharmacotherapies for alcohol or other drug use disorders, trauma-focused integrated therapies, and trauma-focused nonintegrated therapies. Reductions in outcomes for PTSD symptoms and alcohol use were observed for nearly all treatments. CONCLUSIONS The findings provide support for treating comorbid PTSD and substance use disorders using a variety of approaches, with alcohol-targeted pharmacotherapies and trauma-focused behavioral therapies as a combination of treatments that lead to early and sustained improvements in PTSD and alcohol use severity. Further treatment development is indicated for combining behavioral and pharmacological treatments for synergized impact and understanding the mechanisms of action and conditions under which each treatment type is optimized.
Collapse
Affiliation(s)
- Denise A Hien
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Antonio A Morgan-López
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Lissette M Saavedra
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Lesia M Ruglass
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Ai Ye
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Teresa López-Castro
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Skye Fitzpatrick
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Therese K Killeen
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Sonya B Norman
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Chantel T Ebrahimi
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| | - Sudie E Back
- Center of Alcohol and Substance Use Studies, Rutgers University-New Brunswick, Piscataway, N.J. (Hien, Ruglass, Ebrahimi); Department of Psychology, City College of New York, New York (Ruglass, López-Castro); L.L. Thurstone Psychometric Laboratory, Department of Psychology and Neuroscience, University of North Carolina-Chapel Hill (Ye); Department of Psychology, York University, Toronto (Fitzpatrick); Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, and Ralph H. Johnson VA Medical Center, Charleston (Killeen, Back); Department of Psychiatry, University of California, San Diego, and VA San Diego Healthcare System (Norman);Department of Psychology, New School, New York (Ebrahimi)
| |
Collapse
|
7
|
Roberts NP, Lotzin A, Schäfer I. A systematic review and meta-analysis of psychological interventions for comorbid post-traumatic stress disorder and substance use disorder. Eur J Psychotraumatol 2022; 13:2041831. [PMID: 35558682 PMCID: PMC9090345 DOI: 10.1080/20008198.2022.2041831] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The psychological treatment of comorbid post-traumatic stress disorder (PTSD) and substance use disorder (SUD) is clinically challenging, and outcomes are often poor. OBJECTIVE This paper describes a systematic review and meta-analysis which sought to establish the current efficacy for a number of established psychological approaches for adults and adolescents, in comparison to interventions for SUD alone, or other active approaches, following a pre-registered protocol. METHOD This review followed PRISMA and Cochrane Collaboration guidelines. Data extraction and risk of bias judgements using Cochrane criteria were undertaken by all authors. Primary outcomes were PTSD severity and substance use post-treatment. The quality of findings was assessed using GRADE. Following a comprehensive search, conducted to 13 September 2021, 27 studies were included. RESULTS We found a relatively high level of dropout across studies. In our main comparisons, we found no benefits for present-focused treatment approaches aimed at improving coping skills beyond those for SUD-only interventions. We found modest benefits for trauma-focused intervention plus SUD intervention post-treatment for PTSD (standardized mean difference (SMD) = -0.36, 95% confidence interval (CI) -0.64, -0.08), and at 6-13 months for PTSD (SMD = -0.48, 95% CI -0.81, -0.15) and alcohol use (SMD = -0.23, 95% CI -0.44, -0.02). There were no benefits for cognitive restructuring interventions as a group, but we found a modest effect for integrated cognitive behavioural therapy (ICBT) for PTSD post-treatment (SMD = -0.33, 95% CI -0.62, -0.04). There was evidence of some benefit for trauma-focused intervention over present-focused intervention for PTSD from a single study and for reduction in dropout for incentivized attendance for trauma-focused intervention from another single study. Most findings were of very low quality. CONCLUSION There is evidence that trauma-focused therapy and ICBT can improve PTSD for some individuals, but many patients do not fully engage with treatment and average treatment effects are modest. HIGHLIGHTS For PTSD, evidence was strongest for trauma-focused CBT-based approaches, but effects were modest.There was little evidence of any added benefit on substance use, beyond that of standard addiction treatments, for any included intervention.Dropout from treatment was high.
Collapse
Affiliation(s)
- Neil P Roberts
- Cardiff & Vale University Health Board, Cardiff, UK.,Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, UK
| | - Annett Lotzin
- Department of Psychiatry and Psychotherapy, Center for Interdisciplinary Addiction Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ingo Schäfer
- Department of Psychiatry and Psychotherapy, Center for Interdisciplinary Addiction Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| |
Collapse
|