Abstract
A Rapid review of Cochrane Systematic Reviews to identify the non-pharmacological interventions in substance use treatment services and their effectiveness levels where reported. Cochrane systematic reviews were matched to the inclusion criteria and data extracted. A total of 667 studies and 532041 participants are included. The non-pharmacological interventions found can be grouped into three categories: information dissemination, non-specialized face to face interactions, and qualified therapeutic interventions. The measured intervention effectiveness ranged from poor to moderate. The most often reported interventions were cognitive behavioural therapy, motivational interviewing, mindfulness, and contingency management. A wide range of non-pharmacological interventions are being used to treat problematic substance use despite the lack of supportive effectiveness evidence. Missing non-pharmacological interventions include creative arts interventions and lived experience recovery organisations, both of which are gaining momentum in the treatment of substance use.
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Introduction
The intent of this rapid overview is to identify and summarize the non-pharmacological interventions used in the prevention and treatment of problematic substance use as reported in the Cochrane Systematic Reviews (CSRs). Non-pharmacological interventions are those which do not involve a medication prescription and can be used in conjunction with other interventions, such as medication or alone.
Problematic substance use, often referred to under the broad term of addiction, is defined by the American Psychological Society as ‘a state of psychological or physical dependence (or both) on the use of alcohol or other drugs’. It can be further divided into mild, moderate, or severe dependence. Problematic substance use is a societal problem which affects all levels of communities and is a burden to health across the world (American Psychological Association, 2023).
CSRs are available through the Cochrane library (Cochrane Library, 2022). The origin of the Cochrane systematic review dates back to 1972 when the need for better health evidence was identified and the collation of randomized control trials results is meta-analysed to build quality evidence (Starr et al., 2009). The CSRs provide a methodical scrutiny of existing research and are helpful when searching for research gaps because they provide a thorough investigation (Clarke et al., 2007).
This rapid overview uses the methodology of a rapid review and applies it to provide an overview of the published Cochrane systematic reviews. Whilst according to Tricco et al. (2015) there are multiple approaches to conducting rapid reviews, they conclude that the results are congruent with the more thorough methodology of systematic reviews even though the rapid review is not as comprehensive in the reporting and assimilation of results. This simplified methodology is appropriate for gathering information when resources and time are limited and often useful to support the investigation into potential research gaps (Tricco et al., 2015).
Purpose of this Overview
The purpose of this rapid overview is to identify the type of initiatives and level of evidence to support the use of non-pharmacological interventions together with any research gaps, for this often-stigmatised treatment provision.
The study design is focussed on ascertaining the range of non-pharmacological interventions and prevention programmes reported in CSRs from the Cochrane drug and alcohol group. The results will be useful in the design of further studies into the provision and effectiveness of non-pharmacological interventions in problematic substance use treatment services.
Methods
In preparation for this overview, the first author designed the study using the PICO (Patient, Intervention, Comparison, Outcome) framework (Schardt et al., 2007) and prepared a protocol for guidance. The PICO protocol, although not independently published, highlighted the inclusion criteria for participants, interventions, controls and outcomes. The importance of a protocol for a systematic review is a fundamental component of Cochrane systematic reviews and is key to ensuring the quality of their publications (Schlosser, 2007).
Inclusion Criteria
The inclusion criteria matched the study design by keeping the benchmarks broad, whilst focusing specifically on substance use. This enabled as many reviews as possible to be included.
Reviews published in a 10-year period, from January 2012 to December 2021, by the Cochrane Library, and originated or assigned to the Cochrane Alcohol and Drug Group (CADG), were included. This 10-year period was considered sufficient to provide the data required.
Protocols, overviews and withdrawn reviews were not included. All CSRs found were initially screened on title and abstract according to the following inclusion criteria using the PICO framework.
Patient Participants
People described as susceptible to or with an existing history of substance use.
Interventions
All non-pharmacological interventions found were included.
Comparison Controls
All studies in Cochrane Systematic Reviews that matched the patient criteria were included.
Outcomes
Where reported, the primary and secondary outcomes of the non-pharmacological interventions found have been recorded.
Data Collection
Two of the overview authors independently identified those CSRs which met the inclusion criteria from the list of reviews published by the CADG. The data was recorded from the results section found in each CSR.
For each included review, the information was extracted from the CSR and tabled for ease of reference. Data included CSR identification number, review title, year of publication, review authors, number of included studies, countries of included studies, number of included participants, type of substance use, non-pharmacological interventions used and effectiveness where reported.
Analysis of the Data
The extracted data was analysed and categorized by intervention group. The results are reported in Table 1.
Results
The review of 86 Cochrane Systematic Reviews published by the CADG resulted in both reviewers agreeing 28 CSRs were identified on topic. During the data collection process, 4 reviews were excluded as they did not report any non-pharmacological interventions in their results sections. Consequently, there were 24 reviews that met the study inclusion criteria as shown in Fig. 1. A total of 672 studies and 532,845 participants are included and shown in Table 1, by review.
The data reported shows a wide range of substances was being used and a diverse range of intervention modalities was being implemented. The types of substance use, the interventions included and the effectiveness results are also presented in Table 1.
The variety of reported types of interventions and effectiveness included did not lend itself to a meta-analysis of the results. Nevertheless, the tabulated narrative of results shown in Table 1 indicates an overall low to moderate effectiveness pattern for these non-pharmacological interventions.
One review, CD004148, surprisingly found adverse effects relating to the brief intervention for hazardous alcohol use, with one study reporting an increase of binge drinking post this intervention for women.
The countries from which studies originate by each review are reported in Table 1, and 78% of these countries can be classified as high-income countries.
The 4 CSRs that were relevant to the topic but were subsequently excluded as reporting of non-pharmacological interventions were not included in the review results section, are listed in the reference’s section.
Discussion
The results of this rapid overview highlight the types of reported non-pharmacological interventions used to treat people who seek recovery through substance use treatment services, as shown in Table 1. The interventions can be primarily categorized by type and can be grouped into three categories: (A) information provision and dissemination, (B) non-specialized face to face contact, and (C) therapeutic interventions provided by a qualified person as shown in Table 1. The list of interventions is so diverse in their descriptive design; a direct comparison of interventions is very difficult to scrutinize. A meta-analysis of the effectiveness results was not possible due to incomplete reporting and the heterogeneity of study focus and design.
What is most of interest here is the range of interventions and effectiveness outcomes shown in Table 1, which are collectively reported as poor to moderate, not indicating usefulness when paralleled to more widely supported harm reduction methods of treatment, such as prescribed medication for people who use substances. The imprecise reporting of amalgamated results for each included systematic review is of concern; however, Cochrane Systematic Reviews maintain a consistent methodology so giving some semblance of reliability throughout this overview of multiple systematic reviews (Cochrane Training, 2022). The authors acknowledge that using one database source of reviews could add a selection bias to the study; nevertheless, it is also recognized that Cochrane reviews search multiple databases for their inclusion criteria to be matched and would have already employed an extensive search strategy in their process. This study did not search other databases due to the rapid overview design.
The most widely reported interventions in the 672 studies are cognitive behavioural therapy, motivational interviewing, contingency management and mindfulness.
The analysis is limited in its nature due to the design and purpose of this rapid overview. It is recognized that a deeper and more extensive overview would be worthwhile in understanding these results more fully.
This rapid overview shows an absence of potential interventions that could have been expected to be included such as lived experience organisations, equine assisted therapy, sports, purposeful activities and creative arts interventions. A systematic review of creative arts interventions found evidence that music-based interventions are helpful in reducing craving and increasing motivation for recovery (Megranahan & Lynskey, 2018). This is poignant given the growing interest in non-medicalized recovery options, such as creative arts (All-Party Parliamentary Group on Arts, Health, and Wellbeing, 2020) and lived experience recovery organisations. Whilst momentum is increasing in these alternative recovery initiatives, it is unlikely the rigidity of the Cochrane systematic review will be able to highlight the current research activities, mainly due to the stringent characteristics of study inclusion, until such time as there are more controlled trials exploring alternative non-pharmacological interventions in the sector of addiction treatment provision. As a start, a protocol was registered with Cochrane Library to conduct a Cochrane method systematic review investigating music therapy for people with problematic substance use (Ghetti et al., 2020). The completed Cochrane review on music therapy was published in 2022 which was outside the data collection period for this rapid overview (Ghetti et al., 2022). It found 21 studies which met their inclusion criteria with a total of 1984 participants. The results support those reported by Megranahan and Lynskey’s 2018 systematic review results, which shows music is complimentary to reduce cravings for problematic substance use. However, the quality of the studies assessed remained moderate to low evidence which is substantiated in the results of this rapid overview. Michael Silverman’s work into the use of music therapy has established a strong indication on the benefits it can bring to recovery for problematic substance use within substance treatment centres. The latest publication adopts a qualitative reporting design of the results for 12 participants and concludes from the thematic analysis five trends emerged: shared experiences, peer connections, a history of damaged relationships and isolation, the role of social support and an inclination not to seek new relationships whilst in treatment (Bourdaghs & Silverman, 2023). Silverman emphasises the future need for more quantitative exploration for music therapy interventions to enhance the limited body of evidence.
Interestingly, there are 28 countries represented within this review, of which 22 are high-income countries, 3 are upper middle-income countries, 3 are lower-middle income countries, and there are no low-income countries included. Also noted is 50% of the CSRs include the four most represented countries being USA (n = 21), Australia (n = 11), UK (n = 8), and Canada (n = 7). These four countries all have English as their first language which may be a contributing factor to their prominence. According to the global burden of disease, problematic substance use is heavily weighted towards low and middle income countries, whilst the number of related research studies is predominately high income country based. This inequity can influence the collective results of research evidence (Frassetto et al., 2020).
Conclusion
This rapid overview has highlighted those non-pharmacological interventions which are currently offered by problematic substance use treatment services, even though there appears to be a lack of significant evidence of beneficial effects. This study accentuates the need for more investigation with robust study design of an in-depth nature to further understand the reasons these specific interventions continue to be provided by the treatment services for problematic substance use.
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Included CSRs
Carney, T., Myers, B. J., Louw, J., & Okwundu, C. I. (2016). Brief school‐based Interventions and behavioural outcomes for substance‐using adolescents. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD008969.pub3
Darker, C. D., Sweeney, B. P., Barry, J. M., Farrell, M. F., & Donnelly‐Swift, E. (2015). Psychosocial interventions for benzodiazepine harmful use, abuse or dependence. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD009652.pub2
Faggiano, F., Minozzi, S., Versino, E., & Buscemi., D. (2014). Universal school‐based prevention for illicit drug use. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD003020.pub3
Ferri, M., Allara, E., Bo, A., Gasparrini, A., & Faggiano, F. (2013). Media campaigns for the prevention of illicit drug use in young people. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD009287.pub2
Foxcroft, D.R., Coombes, l., Wood, S., Allen, D., Almeida Santimano, N. M. L., & Moreira, M. T. (2016). Motivational interviewing for the prevention of alcohol misuse in young adults. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD007025.pub4
Foxcroft, D. R., Moreira, M. T., Almeida Santimano, N. M. L., & Smith, L. A. (2015). Social norms information for alcohol misuse in university and college students. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD006748.pub4
Gates, P. J., Sabioni, P., Copeland, J., Le Foll, B., & Gowing, L. (2016). Psychosocial interventions for cannabis use disorder. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD005336.pub4
Gilligan, C., Wolfenden, L., Foxcroft, D. R., Williams, A. J., Kingsland, M., Hodder, R. K., Stockings, E., McFadyen, T. R., Tindall, J., Sherker, S., Rae, J., & Wiggers, J. (2019). Family‐based prevention programmes for alcohol use in young people. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD012287.pub2
Goldberg, S.B., Pace, B., Griskaitis, M., Willutzki, R., Skoetz, N, Thoenes, S., Zgierska, A.E., & Rösner, S. (2021). Mindfulness‐based interventions for substance use disorders. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD011723.pub2
Harada, T., Tsutomi, H., Mori, R., & Wilson, D. B. (2018). Cognitive‐behavioural treatment for amphetamine‐type stimulants (ATS)‐use disorders. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD011315.pub2
Hides, L., Quinn, C., Stoyanov, S., Kavanagh, D., Baker, A. (2019). Psychological interventions for co‐occurring depression and substance use disorders. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD009501.pub2
Kaner, E. F. S., Beyer, F. R., Garnett, C., Crane, D., Brown, J., Muirhead, C., Redmore, J., O’Donnell, A., Newham, J. J., De Vocht, F., Hickman, M., Brown, H., Maniatopoulos, G., & Michie, S. (2017). Personalised digital interventions for reducing hazardous and harmful alcohol consumption in community‐dwelling populations. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD011479.pub2
Kaner, E. F. S., Beyer, F. R., Muirhead, C., Campbell, F., Pienaar, E. D., Bertholet, N., Daeppen, J. B., Saunders, J.B., & Burnand, B. (2018). Effectiveness of brief alcohol interventions in primary care populatioNS. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD004148.pub4.
Kelly, J. F., Humphreys, K., & Ferri, M. (2020). Alcoholics anonymous and other 12‐step programs for alcohol use disorder. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD012880.pub2
Klimas, J., Fairgrieve, C., Tobin, H., Field, C. A., O’Gorman, C. S. M., Glynn, L. G., Keenan, E., Saunders, J., Bury, G., Dunne, C., Cullen, W. (2018) Psychosocial interventions to reduce alcohol consumption in concurrent problem alcohol and illicit drug users. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD009269.pub4
McGovern, R., Newham, J. J., Addison, M. T., Hickman, M., & Kaner, E. F. S. (2021). Effectiveness of psychosocial interventions for reducing parental substance misuse. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD012823.pub2
Minozzi, S., Amato, L., Bellisario, C., & Davoli, M. (2014a). Maintenance treatments for opiate-dependent adolescents. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD007210.pub3
Minozzi, S., Saulle, R., De Crescenzo, F., & Amato, L. (2016). Psychosocial interventions for psychostimulant misuse. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD011866.pub2
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Perry, A.E., Neilson, M., Martyn‐St James, M., Glanville, J. M., Woodhouse, R., Godfrey, C., & Hewitt, C. (2019a). Interventions for drug‐using offenders with co‐occurring mental illness. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD010901.pub2
Perry, A. E., Martyn-St James, M., Burns, L., Hewitt, C., Glanville, J. M., Aboaja, A., Thakkar, P., Santosh Kumar, K. M., Pearson, C., & Wright, K. (2019). Interventions for female drug-using offenders. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD010910.pub3
Siegfried, N., Pienaar, D.C., Ataguba, J.E., Volmink, J., Kredo, T., Jere, M., & Parry, C. D. H. (2014). Restricting or banning alcohol advertising to reduce alcohol consumption in adults and adolescents. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD010704.pub2
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Excluded CSRs
Minozzi, S., Amato, L., Bellisario, C., & Davoli, M. (2014). Detoxification treatments for opiate dependent adolescents. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD006749.pub3
Minozzi, S., Cinquini, M., Amato, L., Davoli, M., Farrell, M., Pani, P., & Vecchi, S. (2015). Anticonvulsants for cocaine dependence. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD006754.pub4
Muckle, W., Muckle, J., Welch, V., & Tugwell, P. (2012). Managed alcohol as a harm reduction intervention for alcohol addiction in populations at high risk for substance abuse. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD006747.pub2
Pani, P., Trogu, E., Pacini, M., & Maremmani, I. (2014). Anticonvulsants for alcohol dependence. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.CD008544.pub2
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Megranahan, K., Megranahan, D. & Cooper, A. Non-pharmacological Interventions for Problematic Substance Use: a Rapid Overview of Cochrane Systematic Reviews. Int J Ment Health Addiction (2023). https://doi.org/10.1007/s11469-023-01090-2
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DOI: https://doi.org/10.1007/s11469-023-01090-2