Abstract
Abstract
Background
HIV burden in the US among people who inject drugs (PWID) is driven by overlapping syndemic factors such as co-occurring health needs and environmental factors that synergize to produce worse health outcomes among PWID. This includes stigma, poverty, and limited healthcare access (e.g. medication to treat/prevent HIV and for opioid use disorder [MOUD]). Health services to address these complex needs, when they exist, are rarely located in proximity to each other or to the PWID who need them. Given the shifting drug use landscapes and geographic heterogeneity in the US, we evaluate a data-driven approach to guide the delivery of such services to PWID in local communities.
Methods
We used a hybrid, type I, embedded, mixed method, data-driven approach to identify and characterize viable implementation neighborhoods for the HPTN 094 complex intervention, delivering integrated MOUD and HIV treatment/prevention through a mobile unit to PWID across five US cities. Applying the PRISM framework, we triangulated geographic and observational pre-implementation phase data (epidemiological overdose and HIV surveillance data) with two years of implementation phase data (weekly ecological assessments, study protocol meetings) to characterize environmental factors that affected the viability of implementation neighborhoods over time and across diverse settings.
Results
Neighborhood-level drug use and geographic diversity alongside shifting socio-political factors (policing, surveillance, gentrification) differentially affected the utility of epidemiological data in identifying viable implementation neighborhoods across sites. In sites where PWID are more geographically dispersed, proximity to structural factors such as public transportation and spaces where PWID reside played a role in determining suitable implementation sites. The utility of leveraging additional data from local overdose and housing response systems to identify viable implementation neighborhoods was mixed.
Conclusions
Our findings suggest that data-driven approaches provide a contextually relevant pragmatic strategy to guide the real-time implementation of integrated care models to better meet the needs of PWID and help inform the scale-up of such complex interventions. This work highlights the utility of implementation science methods that attend to the impact of local community environmental factors on the implementation of complex interventions to PWID across diverse drug use, sociopolitical, and geographic landscapes in the US.
Trial registration
ClincalTrials.gov, Registration Number: NCT04804072. Registered 18 February 2021.
Funder
Division of Intramural Research, National Institute of Allergy and Infectious Diseases
National Institute of Mental Health
Canadian Institutes of Health Research
Intramural Research Program, National Institute on Drug Abuse
Publisher
Springer Science and Business Media LLC
Reference64 articles.
1. Bradley H, Hall EW, Asher A, et al. Estimated number of people who inject drugs in the United States. Clin Infect Dis. 2023;76:96–102.
2. Centers for Disease Control and Prevention. HIV Infection Risk, Prevention, and Testing Behaviors among Persons Who Inject Drugs—National HIV Behavioral Surveillance: Injection Drug Use, 23 U.S. Cities, 2018. 2020. http://www.cdc.gov/hiv/library/reports/hiv-surveillance.html.
3. Pouget ER, Bennett AS. A Syndemic Approach to Understanding HIV/AIDS Among People Who Inject Drugs in the U.S. In: Wright ER, Carnes N (eds) Understanding the HIV/AIDS Epidemic in the United States: The Role of Syndemics in the Production of Health Disparities. Cham: Springer International Publishing, pp. 195–216.
4. Dahlby L, Boyd J, Knight R, et al. The perspectives of street-involved youth who use drugs regarding the acceptability and feasibility of HIV pre-exposure prophylaxis: a qualitative study. AIDS Care. 2023;35:480–7.
5. Biello KB, Bazzi AR, Mimiaga MJ, et al. Perspectives on HIV pre-exposure prophylaxis (PrEP) utilization and related intervention needs among people who inject drugs. Harm Reduct J. 2018;15:55.