Implementation of a fidelity monitoring process to assess delivery of an evidence-based adherence counseling intervention in a multi-site biomedical HIV prevention study

Advancing considerations of context in the evaluation and implementation of evidence-based biomedical HIV prevention interventions: a review of recent research

PURPOSE OF REVIEW

A paradigm shift is needed in how we think about biomedical HIV prevention product effectiveness. Often, we expect randomized trial findings to be generalizable across populations and settings where products will be delivered, without consideration of key contextual drivers that could impact effectiveness. Moreover, researchers and policy-makers generally discount products with varied effect sizes across contexts, rather than explicating the drivers of these differences and using them to inform equitable product choice and delivery. We conducted a review of the recent HIV prevention research to advance considerations of context in choices of when, why, and how to implement biomedical HIV prevention products, with a particular focus on daily oral preexposure prophylaxis (PrEP) and the dapivirine vaginal ring (DPV).

RECENT FINDINGS

Findings across recent studies of PrEP and DPV emphasize that products that do not work well in one context might be highly desirable in another. Key contextual drivers of PrEP and DPV effectiveness, use, and implementation include population, health system, cultural, and historical factors. We recommend conceptualization, measurement, and analysis approaches to fully understand the potential impact of context on prevention product delivery. Execution of these approaches has real-world implications for HIV prevention product choice and could prevent the field from dismissing biomedical HIV prevention products based on trial findings alone.

SUMMARY

Ending the HIV epidemic will require tailored, person-centered, and equitable approaches to design, implement, and evaluate HIV prevention products which necessitates considerations of context in ongoing research and implementation.

Inconsistent Counselor Fidelity in Delivering an Evidence-Based Adherence Intervention During a PrEP Trial

Evidence-based adherence counseling interventions must be delivered with fidelity to ensure that their effectiveness is retained, but little is known regarding how counselors in biomedical HIV trials deliver these interventions. Forty-two counselors from the MTN-025/HOPE Study, which was conducted in 14 sites in sub-Saharan Africa, participated. They completed a quantitative assessment and consented for their HOPE counseling session ratings to be analyzed. Twenty-two (52%) self-identified as research nurses and 20 (48%) as counselors. Of 928 session ratings, 609 (66%) were classified as Good, 188 (20%) as Fair, and 131 (14%) as Poor, based on pre-established criteria. Overall mean ratings for session tasks and global components (each rated from 1 to 5) were 4.12 (SD = 0.45; range 2.46-4.73) and 4.02 (SD = 0.64; range 1.75-4.79), respectively. Twenty-six (62%) counselors attained Good or Fair ratings on at least 85% of their sessions, but 33% of counselors had more than 25% of their sessions rated as Poor; three counselors (7%) never met criteria for a Good session. Even after extensive training, counselors' fidelity to the intervention varied. Our findings highlight the value of fidelity monitoring using session audio-recordings, the importance of ongoing coaching and support, and the need to plan for counselors with consistently poor fidelity.

Likely clinical depression and HIV-related decline in antiretroviral therapy untreated women who seroconverted during participation in microbicide trials in sub-Saharan Africa

Depression worsens HIV outcomes in populations treated with antiretroviral therapy (ART) medications. Data are limited on the relationship between depression and HIV in untreated populations in sub-Saharan Africa. We aimed to identify associations between likely clinical depression, alcohol use, social support by partners, and HIV viral load (VL) among ART untreated women who recently became HIV positive and enrolled in the Microbicide Trials Network (MTN)-015 study. Analyses used cross-sectional data collected at baseline in MTN-015. Participants in this analysis (N = 190) enrolled from other MTN trials were not receiving ART and provided data on their HIV disclosure status to their husband or male partner and alcohol use behavior. The dependent variable, VL, was categorized as: low (≤400 RNA copies/mL; 9.1% of participants), medium (401-20,000 RNA copies/mL; 48.8%), and high (>20,000 RNA copies/mL; 42.0%). Depression was assessed using eight items from Hopkins Symptom Checklist; a cutoff of ≥1.75 indicated likely clinical depression. Independent variables with a significance of p ≤ 0.05 in unadjusted regressions were included in a regression adjusted for age, education, and time since seroconversion. Depressive symptoms were positively associated with high VL, in the adjusted regression (OR = 1.80; 95% CI = 1.07-3.01). Results suggest that likely having clinical depression may have a biological relationship with HIV disease progression.

Safety, uptake, and use of a dapivirine vaginal ring for HIV-1 prevention in African women (HOPE): an open-label, extension study

BACKGROUND

Two phase 3 clinical trials showed that use of a monthly vaginal ring containing 25 mg dapivirine was well tolerated and reduced HIV-1 incidence in women by approximately 30% compared with placebo. We aimed to evaluate use and safety of the dapivirine vaginal ring (DVR) in open-label settings with high background rates of HIV-1 infection, an important step for future implementation.

METHODS

We did a phase 3B open-label extension trial of the DVR (MTN-025/HIV Open-label Prevention Extension [HOPE]). Women who were HIV-1-negative and had participated in the MTN-020/ASPIRE phase 3 trial were offered 12 months of access to the DVR at 14 clinical research centres in Malawi, South Africa, Uganda, and Zimbabwe. At each visit (monthly for 3 months, then once every 3 months), women chose whether or not to accept the offer of the ring. Used, returned rings were tested for residual amounts of dapivirine as a surrogate marker for adherence. HIV-1 serological testing was done at each visit. Dapivirine amounts in returned rings and HIV-1 incidence were compared with data from the ASPIRE trial, and safety was assessed. This study is registered with ClinicalTrials.gov, NCT02858037.

FINDINGS

Between July 16, 2016, and Oct 10, 2018, of 1756 women assessed for eligibility, 1456 were enrolled and participated in the study. Median age was 31 years (IQR 27-37). At baseline, 1342 (92·2%) women chose to take the DVR; ring acceptance was more than 79% at each visit up until 12 months and 936 (73·2%) of 1279 chose to take the ring at all visits. 12 530 (89·3%) of 14 034 returned rings had residual dapivirine amounts consistent with some use during the previous month (>0·9 mg released) and the mean dapivirine amount released was greater than in the ASPIRE trial (by 0·21 mg; p<0·0001). HIV-1 incidence was 2·7 per 100 person-years (95% CI 1·9-3·8, 35 infections), compared with an expected incidence of 4·4 per 100 person-years (3·2-5·8) among a population matched on age, site, and presence of a sexually transmitted infection from the placebo group of ASPIRE. No serious adverse events or grade 3 or higher adverse events observed were assessed as related to the DVR.

INTERPRETATION

High uptake and persistent use in this open-label extension study support the DVR as an HIV-1 prevention option for women. With an increasing number of HIV-1 prophylaxis choices on the horizon, these results suggest that the DVR will be an acceptable and practical option for women in Africa.

FUNDING

The Microbicide Trials Network and the National Institute of Allergy and Infectious Diseases, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, and the National Institute of Mental Health, all components of the US National Institutes of Health.

Client-Centered Adherence Counseling with Adherence Measurement Feedback to Support Use of the Dapivirine Ring in MTN-025 (The HOPE Study)

Fostering adherence and open communication about adherence challenges is key to harnessing the potential of biomedical HIV prevention products. We describe the counseling intervention and objective adherence measure feedback process implemented to support adherence to the dapivirine vaginal ring among participants in four sub-Saharan countries and present findings on the counselors' likeability and acceptability of the intervention. Most counselors (N = 42; 86%) liked Options counseling "very much" and during in-depth interviews (N = 22), reported that the intervention reshaped their adherence counselling approach by emphasizing understanding participants' experiences using the ring, which facilitated open discussion of adherence challenges. Counselors found that reframing residual drug level (RDL) discussions from the "adherence" to "protection" perspective encouraged adherence among consistent users and facilitated decisions to switch to a different HIV prevention approach among infrequent users. Among counselors, 24% said participants "liked it very much" while 26% said that participants "liked it a little" possibly due to two main complaints: perceived repetitiousness of sessions and variability in the RDL assay, which at times resulted in unexpected low RDLs.

Counselors' acceptability of adherence counseling session recording, fidelity monitoring, and feedback in a multi-site HIV prevention study in four African countries

Biomedical HIV prevention trials increasingly include evidence-based adherence counseling to encourage product use. To retain effectiveness, interventions must contain key components. Monitoring counseling fidelity ensures inclusion of components but is challenging in multinational contexts with different languages and scarce local supervision. The MTN-025/HOPE Study, a Phase 3b open-label trial to assess continued safety of and adherence to the dapivirine vaginal ring for HIV prevention, was the largest such trial to integrate fidelity monitoring using audio recordings of counseling sessions. We describe the monitoring process, along with counselor and participants' perceptions of it, which were collected via quantitative online survey (counselors only N = 42) and in-depth interviews with a subset of counselors (N = 22) and participants (N = 10). Sessions were conducted in five languages across 14 study sites in four countries. In total, 1238 sessions (23% of submitted sessions) were randomly selected and rated. Assessment of interrater reliability was essential to address drift in ratings. Counselors were apprehensive about being monitored, but appreciated clear guidance and found ratings very helpful (mean = 6.64 out of 7). Some participants perceived sessions as time-consuming; others found monitoring improved counseling quality. Fidelity monitoring of counseling sessions in mult-isite biomedical HIV studies is feasible and supportive for counselors.