Hospital Visit as Opportunity for Prevention and Engagement for HIV-Infected Drug Users

Overview

Primary Objective: This study will evaluate the most effective strategy in achieving HIV virologic suppression among HIV-infected substance users recruited from the hospital setting who are randomly assigned to one of three treatment conditions: 1) Patient Navigator (PN); 2) Patient Navigator + Contingency Management (PN+CM); and 3) Treatment as Usual (TAU). Primary Hypothesis: The rate of viral suppression (plasma HIV viral load of \<= 200 copies/mL) relative to non-suppression or all-cause mortality in the 3 study groups will differ from each other at the 12 month follow-up. Sub-hypothesis 1. The rate of virologic suppression (plasma HIV viral load of \<= 200 copies/mL) in the PN+CM group will be greater than that in the TAU group. Sub-hypothesis 2. The rate of virologic suppression in the PN+CM group will be greater than that in the PN group. Sub-hypothesis 3. The rate of virologic suppression in the PN group will be greater than that in the TAU group. Secondary Objectives: 1. To evaluate the effect of the experimental interventions on: HIV virological suppression and CD4 T-cell count changes at 6 months post-randomization; engagement in HIV primary care and visit attendance; and rate of hospitalizations. 2. To evaluate the effect of the experimental interventions on: drug use frequency and severity; and drug use treatment engagement and session attendance. 3. To assess selected mechanisms of action of the intervention (.i.e. mediators of intervention effect). 4. To assess potential characteristics associated with differential treatment effectiveness (i.e. moderators of intervention effect). 5. To evaluate the incremental cost and cost-effectiveness of the interventions.

This study is a 3-arm randomized, prospective trial in which HIV-infected inpatients who report substance use at screening will be randomized in 1:1:1 ratio to Patient Navigator (PN) vs. Patient Navigator + Contingency Management (PN+CM) vs. Treatment as Usual (TAU). Randomization will occur after screening, informed consent, baseline assessment and collection of biological (blood) specimens. Participants assigned to the PN and PN+CM groups will meet (ideally at bedside if the participant is still hospitalized at the time of randomization) with the Patient Navigator interventionist and will complete up to 11 intervention sessions over the 6-month-long intervention period. Participants assigned to the TAU group will receive care as it is typically offered in the inpatient setting. Follow-up visits will be conducted at approximately 6 and 12 months post-randomization. To minimize patient and staff burden, sites may implement a pre-screening procedure with permission from their respective IRBs to determine which inpatients would meet the study's AIDS-defining illness/CD4 count/viral load inclusion criteria. Pre-screening, screening, enrollment, assessment, randomization and the initial intervention visit will (ideally) occur during the participant's stay at an inpatient facility. Recognizing that participants may be recruited at various stages of illness during their inpatient visit, however, this may not be possible. To allow maximum flexibility, all activities that occur after the screening informed consent may be completed after the patient has been discharged from the hospital. The intervention duration will be 6 months with sessions ideally occurring weekly during the first month, bi-weekly during months 2 and 3 and monthly during months 4- 6. Follow-up visits will occur at approximately 6 and 12 months post-randomization. Therefore, the total duration of individual participation in the study is approximately 12 months. Prior to approaching patients to recruit them into the study, members of the medical teams within each hospital (i.e., attending physicians, fellows, residents and nurse practitioners) who are involved in patient care and who know the patients' HIV-infected status will assess the medical stability of the patients. If a patient has expressed interest in potentially participating in research and is deemed medically stable, then a study staff member will meet with the patient at bedside to discuss the study. Strict ethical guidelines regarding professional conduct and confidentiality will be enforced for all study staff. Prior to screening individuals to determine their eligibility to participate, the research staff will briefly explain the study purpose, procedures, potential risks and benefits and voluntary nature of participation. Individuals willing to be screened to determine eligibility will provide written informed consent, including providing HIPAA authorization for medical record abstraction. After signing the consent and HIPAA forms, participants will be offered copies of the forms to keep for their records. After the enrollment process (providing written informed consent and completing a locator form) is complete and a brief rapport-building discussion between the interviewer and participant has taken place, the research interviewer will administer the baseline assessment through a handheld Computer Assisted Personal Interview (CAPI) device. The CAPI system displays each assessment question on a computer monitor, allowing the interviewer to read the questions and then enter the participants' responses directly into the computer. The baseline assessment will include, but not be limited to questions on participant demographics, HIV care, medication adherence, substance use and co morbid conditions such as hepatitis, depression, etc. Collection of Biologic Specimens: We will collect blood specimens at the baseline, 6-month and 12-month follow-up visits to evaluate the primary outcome, HIV virologic suppression, as well as to measure CD4 count, and complete blood count (CBC). Blood specimen processing will be done by sites' local laboratories. In the event that a blood specimen cannot be collected for any reason (e.g., vein is "dry", participant is lost to follow-up, etc.) or the result of a collected specimen is not available (e.g., not enough specimen drawn, lab processing error, etc.), the study team may abstract and use non-study lab results for the purpose of evaluating the HIV virologic suppression outcome and measuring CD4 count and CBC. Participants randomized to the intervention groups may also provide urine for drug screening. Randomization: Participants will be randomized in a 1:1:1 fashion to one of the 3 treatment groups. Randomization will be stratified by site. The randomization procedure will be conducted in a centralized process through the Data and Statistical Center (DSC2). After the baseline assessment is successfully completed, a designated study staff member will perform the randomization. Randomization for each participant is done over the Internet using the Enrollment Module in AdvantageEDC (the study electronic data capture system). Study Interventions: The 3 treatment conditions/study groups are: 1) Patient Navigator intervention (PN), 2) Patient Navigator plus Contingency Management (PN+CM) intervention and 3) Treatment as Usual (TAU). The patient navigator (PN) approach includes five functions: 1) establishing an effective working relationship; 2) encouraging identification and use of strengths, abilities and assets; 3) supporting client control over goal setting and the search for needed resources; 4) viewing the community as a resource and identifying informal sources of support; and 5) conducting case management as an active community based activity. Specifically, patient navigators will provide the following to all study participants randomized to the PN group: 1) four initial meetings, ideally having the first one during hospitalization and three within the first 3 weeks of hospital discharge, and 2) after the initial four meetings, patient navigators will meet with the PN group participants ideally twice monthly during months 2 and 3 and once during months 4 - 6. Study participants randomized to the patient navigator plus contingency management (PN+CM) group will receive the patient navigation (PN) intervention as outlined above and in Section 11.2 of the sponsor protocol combine with contingency management (CM). For participants randomly assigned to the PN+CM study group, patient navigators will: 1) effectively communicate the incentive plan to the participant, 2) track each of the seven target behaviors that may earn participant incentives, 3) verify occurrence of the target behaviors, 4) deliver incentives according to the protocol, and 5) maintain a record of incentives delivered. Participants assigned to the treatment as usual (TAU) group will receive the standard treatment provided at participating sites for linking patients to HIV and substance use care. Follow-up visits will be conducted at approximately 6- and 12-months post-randomization and will involve follow-up CAPIs and blood collection.