Building on Needle Exchange to Optimize Prevention & Treatment

Study Overview
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Brief Summary
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There are several biomedical interventions that can help people who inject drugs (particularly those with or at risk for HIV), but these services often do not get to the people most in need. In this project investigators propose to determine if delivery of these services to PWID by an integrated care van that is linked to a mobile syringe service program improves clinical outcomes, is feasible and sustainable, and is cost-effective.

Detailed Description
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Biomedical interventions that have direct applicability to people who inject drugs (PWID) have flourished over the past 15 years (HIV treatment as prevention, pre-exposure prophylaxis, office-based medication-assisted treatment (MAT) with buprenorphine, and hepatitis C virus (HCV) treatment with direct acting agents). However, penetration of these interventions among PWID is low relative to the potential benefits. Syringe service programs (SSP) are an essential risk reduction service for PWID, and represent the outermost reach of public health services for this population. The Baltimore City Health Department (BCHD) and investigators at Johns Hopkins University are developing a dedicated integrated care van (ICV) to complement the city's mobile SSP, with the goals of optimizing the HIV care cascade in HIV-positive clients and extending needed biomedical interventions to PWID. A nurse practitioner, case worker, and peer navigators will engage HIV-positive clients (known and newly diagnosed) and collaborate closely with local HIV clinics to promote progress toward durable viral suppression. To support the ICV's role in HIV care facilitation, investigators propose an innovative application of the Center for Disease Control (CDC)-sponsored Data to Care initiative - a multi-source health service database designed to assist health departments track the HIV care cascade in real time. Additionally, the ICV will provide rapid HIV testing, PrEP screening and initiation, buprenorphine-based MAT, HCV testing and referrals to treatment, and wound care. Using a cluster-randomized trial design, investigators propose to determine whether the ICV intervention advances the HIV care cascade among HIV-positive PWID, improves the Pre-Exposure Prophylaxis (PrEP) continuum, and increases uptake of MAT and HCV treatment (Aim 1). Additionally, investigators will examine the implementation of the ICV intervention using a mixed methods approach among PWID, local/state public health stakeholders, and medical providers to examine the intervention's feasibility, acceptability, coverage, fidelity, and sustainability (Aim 2). Finally, investigators will determine the incremental cost-effectiveness of the ICV intervention (Aim 3). Investigators have assembled a multi-disciplinary team with methodological expertise in PWID interventions and cost-effectiveness evaluations, and longstanding collaboration with investigators' partners at the BCHD.

Official Title
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Building on Needle Exchange to Optimize Prevention & Treatment

Conditions
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Intravenous Drug Usage, HIV/AIDS

Intervention / Treatment
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* Other: Integrated care van (ICV)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: If HIV-positive: report history of injection drug use If HIV-negative: injected drugs ≥ 4 days in the last 30 days or shared a needle or syringe in the last 6 months Exclusion Criteria: Not competent to provide written informed consent Not willing or able to provide a blood specimen

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Cluster-randomized trial
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Integrated care van (ICV)<br>ICV visits neighborhoods served by the mobile syringe service program weekly. ICV provides a range of services targeted to people who inject drugs - HIV testing, HCV testing, PrEP, MAT, wound care, case work services, on-site medical management and linkage. | Other: Integrated care van (ICV)<br>* Structural service delivery intervention<br>|
| No Intervention: Control<br>No additional services provided. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Composite PWID Score (Service Access, Risk Behaviors, Adverse Outcomes) | To capture the multifaceted nature of the ICV intervention and the array of health issues relevant to PWID, we developed a scoring rubric based on World Health Organization (WHO) guidelines for evidence-based PWID services, a predictive risk model for HIV seroconversion among PWID developed by the Baltimore-based ALIVE study, the HCV care continuum, and the overdose epidemic. In the scoring rubric, points are allocated on the basis of failure to access evidence-based services, riskier behaviors, and adverse outcomes. This outcome will be assessed in all participants at all time points. The score is based on self-report, biomarker testing, and medical record review, and ranges from 0 to 15, with higher scores indicating worse overall status. | Between baseline visit and the V7 follow-up visit at 7 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| HIV Care Continuum | This outcome will be assessed in HIV-positive participants at all time points. The score is based on self-report and biomarker testing, and ranges from 0 to 2 with higher scores indicating poorer HIV care engagement. Participants with viral load suppression (HIV RNA <20 c/mL) are counted and assigned a score=0; those with non-suppressed viral load but who took antiretroviral drugs in the prior 30 days or who had a visit with an HIV care provider in the prior 6 months are counted and assigned a score=1; those with non-suppressed viral load, and who did not take antiretroviral drugs (ARVs) in the prior 30 days and did not have a visit with an HIV care provider in the prior 6 months are counted and assigned a score=2. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| HIV Testing | This outcome will be assessed in HIV-negative participants at all time points. The score is based on self-report and biomarker testing, and ranges from 0 to 1 with higher scores indicating poorer HIV care engagement. Participants who had an HIV test in the prior 6 months will be counted and assigned a score=0; those who did not have an HIV test in the prior 6 months will be counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Pre-exposure Prophylaxis (PrEP) Continuum | This outcome will be assessed in HIV-negative participants at all time points. The score is based on self-report, and ranges from 0 to 1 with higher scores indicating poorer engagement with PrEP. Participants who used PrEP in the prior 6 months are counted and assigned a score=0; those who did not use PrEP in the prior 6 months are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| HCV Care Continuum | This outcome will be assessed in HCV-positive participants at all time points. The score is based on self-report and biomarker testing, and ranges from 0 to 2 with higher scores indicating poorer engagement with HCV care. Participants successfully treated for HCV with undetectable HCV RNA are counted and assigned a score=0; those who have detectable HCV RNA but who have been evaluated or treated for HCV in the prior 6 months are counted and assigned a score=1; those who have detectable HCV RNA, have not been treated or evaluated in the prior 6 months are counted and assigned a score=2. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| HCV Testing | This outcome will be assessed in HCV-negative participants and HCV-antibody positive participants who spontaneously cleared the infection without completing treatment at all time points. The score is based on self-report and biomarker testing, and ranges from 0 to 1 with higher scores indicating poorer HIV care engagement. Participants who had an HCV test in the prior 6 months are counted and assigned a score=0; those who did not have an HCV test in the prior 6 months are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Medication for Opioid Use Disorder (MOUD) Use | This outcome will be assessed in all participants at all time points. The score is based on self-report, and ranges from 0 to 1. Participants who used MOUD in the prior 6 months are counted and assigned a score=0; those who have not used MOUD in the prior 6 months are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Syringe Service Program (SSP) Use | This outcome will be assessed in participants who report injection drug use in the prior 6 months, at all time points. The score is based on self-report, and ranges from 0 to 1 with higher scores indicating poorer engagement in risk reduction services. Participants who used an SSP in the prior 6 months are counted and assigned a score=0; those who did not use an SSP in the prior 6 months are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Naloxone Overdose Kit | This outcome will be assessed in all participants at all time points. The score is based on self-report, and ranges from 0 to 1 with higher scores indicating poorer engagement in risk reduction services. Participants who possess a naloxone overdose kit that is usually accessible when they use drugs (i.e, where they usually use drugs) are counted and assigned a score=0; those who do not possess a naloxone overdose kit that is in an accessible location are counted and assigned score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Injection Drug Use | This outcome will be assessed in all participants at all time points. The score is based on self-report and ranges from 0 to 1 with higher scores indicating riskier behavior. Participants who did not inject drugs in the prior 6 months are counted and assigned a score=0; those who did inject drugs in the prior 6 months are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Recent Drug Use | This outcome will be assessed in all participants at all time points. The score is based on biomarker testing and ranges from 0 to 1 with higher scores indicating riskier behavior. Participants who have a negative urine drug test for selected drugs are counted and assigned a score=0; those who have a positive urine drug test for selected drugs are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. Selected drugs include the primary drug or metabolites of fentanyl, heroin, cocaine, or amphetamines. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Sharing Injection Equipment | This outcome will be assessed in all participants at all time points. The score is based on self-report and ranges from 0 to 2 with higher scores indicating riskier behavior. Participants who did not share needle/syringe or cotton/cooker in the prior 6 months are counted and assigned a score=0; those who shared cotton/cooker but did not share needle/syringes in the prior 6 months are counted and assigned a score=1; those who shared needle/syringes in the prior 6 months are counted and assigned a score=2. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Non-fatal Overdose | This outcome will be assessed in all participants at all time points. The score is based on self-report, and ranges from 0 to 1 with higher scores indicating adverse outcome. Participants who do not report a non-fatal drug overdose in the prior 6 months are counted and assigned a score=0; those who report a non-fatal drug overdose in the prior 6 months are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| Emergency Department (ED) Use | This outcome will be assessed in all participants at all time points. The score is based on self-report, and ranges from 0 to 1, with higher scores indicating adverse outcome. Participants with no ED visits in the prior 6 months are counted and assigned a score=0; those with 1 or more ED visits in prior 6 months are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between 6 months prior to and the V7 follow-up visit at 7 months | 
| HIV Seroconversion | This outcome will be assessed in participants who were HIV-negative at baseline, at follow-up time points. The score is based biomarker testing, and ranges from 0 to 1 with higher scores indicating adverse outcome. Participants who remain HIV seronegative at follow-up visits are counted and assigned a score=0; those who seroconvert for HIV are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between baseline visit and the V7 follow-up visit at 7 months | 
| HIV Seroconversion | This outcome will be assessed in participants who were HIV-negative at baseline, at follow-up time points. The score is based biomarker testing, and ranges from 0 to 1 with higher scores indicating adverse outcome. Participants who remain HIV seronegative at follow-up visits are counted and assigned a score=0; those who seroconvert for HIV are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | 12 months | 
| HCV Seroconversion | This outcome will be assessed in participants who were HCV seronegative at baseline, at follow-up time points. The score is based biomarker testing, and ranges from 0 to 1 with higher scores indicating adverse outcome. Participants who remain HCV seronegative at follow-up visits are counted and assigned a score=0, those who seroconvert for HCV are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between baseline visit and the V7 follow-up visit at 7 months | 
| HCV Seroconversion | This outcome will be assessed in participants who were HCV seronegative at baseline, at follow-up time points. The score is based biomarker testing, and ranges from 0 to 1 with higher scores indicating adverse outcome. Participants who remain HCV seronegative at follow-up visits score=0, those who seroconvert for HCV score=1. | 12 months | 
| Mortality Rate | This outcome will be assessed in all participants at all follow-up time points. The score is based on medical record review or National Death Index, and ranges from 0 to 1 with higher scores indicating adverse outcome. Participants who are alive are counted and assigned a score=0, those who have died are counted and assigned a score=1. The counts of participants will be reported for this outcome measure and the associated score will be factored into the primary composite outcome. | Between baseline visit and the V7 follow-up visit at 7 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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hepatitis C