An interventional study of Case management in HIV/AIDS, sponsored by Johns Hopkins Bloomberg School of Public Health. Completed at 4 sites in Senegal. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-10-07.
Sponsored by Johns Hopkins Bloomberg School of Public Health · Not applicable, Interventional, and Other
Senegal plans a rapid scale up of HIV treatment for all people living with HIV, regardless of cluster of differentiation 4 (CD4) count or viral suppression. However, limited data exist on how to achieve sustained viral suppression outside of a controlled setting, and with significant barriers to effective antiretroviral therapy delivery, uptake, and adherence. The purpose of this study is to develop and assess the feasibility, fidelity, and cost-effectiveness of a universal coverage of Antiretroviral Treatment (ART) intervention among people living with HIV who are not virally suppressed in Dakar and Ziguinchor, Senegal.
The overarching goal of this study is to assess the feasibility, fidelity, and cost-effectiveness of a universal coverage of Antiretroviral Treatment (ART) intervention among individuals living with HIV who are not virally suppressed in Dakar and Ziguinchor, Senegal. Specific aims and hypotheses are as follows:
Specific Aim 1: Compare the effectiveness and durability of (a) the existing Standard of Care (SOC) in Senegal versus (b) individual Case Management (CM) programs to achieve sustained viral suppression (SVS) among people living with HIV in Senegal.
Hypothesis 1: The null hypothesis is that standard of care and case management will be equally effective at achieving sustained viral suppression. The alternate hypothesis is that case management will be 30% more effective at sustained viral suppression at 12 months compared to standard of care.
Specific Aim 2: Determine the cost-effectiveness of the universal treatment approach using the CM intervention.
Hypothesis 1: A Case Management approach will be more cost-effective at achieving sustained viral suppression among people living with HIV (PLHIV) versus the existing standard of care in Senegal.
This study is a randomized controlled trial (RCT) that uses an effectiveness-implementation hybrid design to test the effectiveness and durability of CM interventions in achieving SVS among PLHIV who are not virally suppressed. CM vs. SOC approaches will be assessed using an individual-level RCT of case management to improve viral suppression of those living with HIV at 12 months compared to the Senegal SOC. While viral suppression will be a primary outcome of this intervention, significant attention will be given to the collection of service and implementation outcomes to assess both the SOC and CM.
Study sites will include two government HIV treatment facilities in Ziguinchor, and two in Dakar. Participant enrollment into the study will take place at the study sites, and study arms (SOC or CM) will be assigned through individual randomization at the clinic level. Notably, the HIV treatment facilities in this study are existing government facilities given the partnership between this study and the Ministry of Health (MOH) of Senegal.
Eligible participants recruited through the study site health facilities will go through the consent process in private rooms within the project office and complete a structured 1-hour interviewer-administered questionnaire, which will serve as the baseline assessment. Participants will be enrolled into the study, by trained study staff at a study site.
Baseline assessment of study participants will include a socio-behavioral questionnaire and biological testing. The baseline questionnaire will assess demographic characteristics, socioeconomic status, mobility and migration history, behavioral characteristics, health and HIV treatment history, and HIV acquisition risks.
Follow up will involve visits at 3, 6, 9, and 12 months after the first visit. Questionnaires will be administered at each visit. Questionnaires assessing behavioral characteristics, mental health, social support, and ART treatment adherence will be administered at 6 months, and 12 months.
Abbreviated questionnaires will be re-administered at 3 and 9 months though no biological assessments will be completed at these time points. The questionnaires leverage existing instruments that have detailed assessments engagement in ART services as well as enacted, perceived, and intersectional stigma. In addition, the investigators will use implementation indicators that explore measures of acceptability, fidelity, appropriateness, and routinization of the CM intervention.
Biological samples using either aliquots of serum or dried blood spots (DBS) will be taken at baseline, 6 months, and 12 months to support syphilis testing, HIV viral load, and other sexually transmitted infections (STIs). Biological testing taken at baseline and will include testing currently being implemented through the SOC, and testing conducted at the additional visits will be supported by the study. All participants will also have the opportunity to receive referrals for additional medical care as needed at the clinics in which the study sites are housed.
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This study's enrollment of 596 is above the median of 105 across 1,543 interventional studies indexed under Acquired Immunodeficiency Syndrome.
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Exclusion Criteria:
Participants assigned to the Senegalese standard of care treatment for people living with HIV.
Individuals in the intervention arm will receive Senegalese standard of care treatment for people living with HIV, and the case management intervention.
Behavioral: Case management
Case management intervention is a multi-step process to coordinate care and provide a family-like support system for people living with HIV. Individuals are assigned to a specific case manager who will provide support throughout the study. The case management approach has five key components: 1) initial meeting between person living with HIV and case manager; 2) follow up meeting between case manager and participant; 3) biweekly automatic text messages sent to participant; 4) monthly phone calls from case manager; and 5) face-to-face meetings between case manager and participant every 6 months.
Viral suppression among study participants measured through biological samples using either aliquots of serum or dried blood spots (DBS).
Biological samples using either aliquots of serum or dried blood spots will be taken at baseline, 6 months, and 12 months to support HIV viral load testing. Biological testing taken at baseline and will include testing currently being implemented through the SOC, and testing conducted at the additional visits will be supported by the study. All participants will also have the opportunity to receive referrals for additional medical care as needed at the clinics in which the study sites are housed. Sustained viral suppression is defines as quantitative viral load assessment with \<1000 copies/ml at 12 months after initial randomization
Time frame: Viral suppression at 12 months of follow up
Loss-to-follow-up of study participation among study participants
Numbers and proportions of participants remaining engaged in the study will be measured through study visits every 3 months. Loss to follow up among participants in the existing Standard of Care study arm will be compared to the individual Case Management (CM) study arm to measure a difference in loss to follow up between the two study arms.
Time frame: Loss to follow up at 12 months
Acceptability of CM intervention among study participants through self-reported measure.
Acceptability of the CM intervention will be measured through self-reported measures collected through the social behavioral questionnaire. Acceptability measure is leveraged from the Society of Implementation Research Collaboration instrument review.
Time frame: 12 months
Cost-effectiveness of the universal treatment approach using the CM intervention
To determine the cost-effectiveness of the universal treatment approach using the CM intervention, we will perform a comprehensive costing of our study intervention, from the perspectives of both the healthcare system and the participants. Our costing methodology will follow World Health Organization (WHO) recommendations for cost-effectiveness analysis, with estimates of unit costs compared against WHO's CHOosing Interventions that are Cost-Effective (CHOICE) global estimates for countries in Senegal's region.
Time frame: 12 months
Plan to share: No
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Johns Hopkins Bloomberg School of Public Health