What we talk about when we talk about durable viral suppression

A closer look: factors impacting HIV durable viral suppression among a cohort of clinic attendees in Trinidad & Tobago

BACKGROUND

In Trinidad and Tobago, high HIV prevalence among key populations necessitates studying factors that impact durable viral suppression (DVS), crucial for effective HIV management and reducing transmission among at-risk networks. This study investigates these factors using clinical data from a major HIV care clinic in the Caribbean.

METHODS

A retrospective analysis of 533 adult people with HIV (people) at MRFTT from 2017 to 2021 assessed the proportion achieving DVS, defined as a sustained viral load <200 copies/ml over one year. Initial univariate analysis characterized individuals with DVS, followed by bivariate analysis to explore socio-demographic differences. Significant variables from bivariate analysis were examined in a regression model to identify DVS covariates.

RESULTS

The average age of the sample was 45 years (SD = 10.88), with 52.0% male and 72.1% of African descent. 31.5% achieved durable viral suppression (DVS). Those with DVS were predominantly women (54.1%), older (mean age 45, SD = 11.32), with more frequent clinic visits over five years (mean = 101, SD = 33.26). Regression analysis showed that women (OR = 1.43, 95% CI 0.99-2.07), individuals on long-term antiretroviral therapy (ART) (>5 years) (OR = 1.66, 95% CI 1.03-2.66), and those with extended clinic enrolment (>5 years) (OR = 1.82, 95% CI 1.08-3.06) had higher odds of achieving DVS.

CONCLUSIONS

Only a third of the study sample achieved DVS, with men less likely to reach this goal. Lesser engagement in care correlated with lower DVS rates. Further research into social and structural barriers to clinic attendance, particularly among younger men, is recommended.

Association between substance use disorders and sustained viral suppression: a longitudinal analysis among people with HIV in South Carolina

OBJECTIVES

Substance use disorders (SUDs) are a significant public health concern across the United States and may pose a risk to achieving sustained viral suppression (SVS) in people with HIV (PWH). This study aims to examine the association between SUDs and SVS among PWH.

DESIGN

Using electronic health records from the South Carolina Department of Health, we conducted a retrospective study of adults with HIV who were diagnosed between January 2006 and December 2019.

METHODS

The impact of SUDs on SVS was assessed using generalized linear mixed model. Potential confounders included age, sex, chronic diseases history, etc. Stepwise selection was performed to decide the confounders included in the final model, and the optimal correlation structure was determined by Akaike information criterion.

RESULTS

Of the 9412 eligible participants, 7481 (79.48%) had reached SVS status during their follow-up periods. SUDs related to alcohol [adjusted odds ratio (AOR) = 1.70, 95% confidence interval (CI): 1.46-1.98], cannabis (AOR = 1.62, 95% CI: 1.35-1.95), cocaine (AOR = 1.95, 95% CI: 1.60-2.37), opioid (AOR = 1.91, 95% CI: 1.13-3.23), and tobacco (AOR = 1.80, 95% CI: 1.69-1.92) were negatively associated with SVS. Individuals with chronic conditions such as cardiovascular disease (AOR = 0.31, 95% CI: 0.29-0.33), diabetes (AOR = 0.49, 95% CI: 0.41-0.59), and cancer (AOR = 0.47, 95% CI: 0.38-0.58) showed a higher likelihood of maintaining SVS.

CONCLUSION

This large cohort study of PWH with extended follow-up highlights the negative impact of SUDs on maintaining SVS. Long-term strategies for reducing substance use could support SVS in PWH.

Healthcare utilisation in people living with HIV: the role of substance use, mood/anxiety disorders and unsustained viral suppression - a retrospective cohort study in British Columbia, Canada, 2001-2019

OBJECTIVE

People living with HIV (PLWH) are disproportionately affected by substance use disorder (SUD) and mood/anxiety disorders, which are barriers to sustained viral suppression and can contribute to increased healthcare utilisations. This study examined the impact of SUD and mood/anxiety disorders on healthcare utilisation of PLWH with sustained and unsustained viral suppression.

DESIGN AND PARTICIPANTS

This retrospective population-based cohort study used administrative data from 9757 antiretroviral-treated PLWH (83% men, median age 40 years). Eligible PLWH were≥19 years of age, followed during 2001-2019, and achieved viral suppression at least once during follow-up.

SETTING

This study was conducted in British Columbia, Canada.

MEASUREMENTS

The exposure variable consisted of eight levels and included (1) sustained suppression, (2) SUD and mood/anxiety disorder diagnoses and the interaction between (1) and (2). Outcome variables included annual counts of primary care and specialist physician visits, laboratory visits, acute care hospitalisation, day surgery episodes and hospital length of stay (LOS). Statistical count models were used to determine the effect of exposure variables on each healthcare utilisation outcome while adjusting for socioeconomic confounders.

RESULTS

In the presence of sustained suppression, having both disorders was significantly associated with over four times more acute-care hospitalisations (0.28 vs 0.05), three times longer LOS (9.1 vs 3.0 days) and almost double primary care physician (13.1 vs 6.9) and specialist (7.9 vs 4.0) visits. Overall, SUD alone was associated with increased use of all healthcare services (except day surgery). Regardless of disorder diagnoses, unsustained suppression was associated with higher healthcare utilisation (except day surgery).

CONCLUSION

In this study, SUD, mood/anxiety disorders and unsustained suppression, when combined, resulted in the highest healthcare utilisation among PLWH. The results suggest that providing comprehensive mental health and substance use services to PLWH and addressing barriers to sustained suppression could reduce the healthcare burden within this population.

Depressive Symptoms and HIV Viral Suppression: A Systematic Review and Meta-analysis

Previous research suggests that depression impacts HIV outcomes, including viral suppression. This meta-analysis quantifies the association between depression and HIV viral suppression. A systematic literature search was conducted in PubMed, Web of Science, EBSCO, and OVID to identify studies published through 2012 to 2022. The software Rayyan was used to evaluate eligibility of studies, and the 2020 Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines were used for abstracting data. A random effects meta-analysis was performed using Review Manager 5.4.1. Of the 1911 articles screened, 16 studies were included covering 80,103 participants. The results showed individuals without depression were more likely to achieve HIV viral suppression or undetectable viral load compared to individuals with depression (OR 1.30; 95%CI 1.15, 1.48; I2 = 76%). Subgroup analysis indicated this effect was significant among the general population of people living with HIV (n = 75,353; OR 1.32; 95%CI 1.12, 1.55; I2 = 85%) and cisgender women living with HIV (n = 4553; OR 1.28; 95%CI 1.09, 1.50; I2 = 16%), but not among cisgender men living with HIV (most identified as men who have sex with men) (n = 197; OR 2.13; 95%CI 0.43, 10.61; I2 = 83%). This meta-analysis shows a significant positive association between the absence of depression and achieving HIV viral suppression overall and among the subgroup of cisgender women. Public health interventions for people living with HIV should include strategies to identify and address the depressive symptoms that impact adherence to treatment, increase the risk of psycho-behavioral co-morbidities, and exacerbate social or structural factors impeding viral suppression.

Viral load suppression among HIV-positive adult patients on the first-line antiretroviral treatment regimen in health facilities in the City of Ekurhuleni, Gauteng province, South Africa

Introduction

the Human Immunodeficiency Virus (HIV) remains a global health concern, with South Africa among the hardest hit countries. Viral suppression in HIV patients is a positive treatment outcome when monitoring progress and using antiretrovirals (ART). Despite the Joint United Nations Programme on HIV/AIDS (UNAIDS) 95-95-95 strategy which focuses on monitoring viral suppression, unsuppressed viral loads keep persisting because of several factors. The study sought to determine viral load suppression and contributing factors among adult patients on first-line ART in Ekurhuleni District, South Africa.

Methods

the study reviewed 379 patient files of adult patients on first-line ART between April and June 2018. Standardized tools were used to collect sociodemographic and clinical data. Descriptive data was analyzed using frequency tabulations and percentages, and multivariable logistic regression was used to identify factors associated with viral load suppression.

Results

the study included 379 patient records. Mean age; DS of 38.9 years with standard deviation at 10.1. The prevalence of viral load suppression at 12 months was 75.2% (n=285). Female participants had higher suppression rates 77.7% (n=188) than males 70.8% (n=97), received pre-ART counseling 73.1% (n=277) as well as no history of tuberculosis 92.4% (n=350). Being female with (aOR=7.29, 95% CI: 1.02 - 52.26; p=0.04) and having completed a six-month viral load assessment (aOR=1.85, 95% CI: 1.00 - 3.41; p=0.04) were independently associated with higher odds of having a suppressed viral load. However, being referred for adherence (aOR=0.61, 95% CI: 0.37 - 0.99; p=0.05) and having a previous history of ART exposure (aOR=0.29, 95% CI 0.10 - 0.77; p=0.01) were independently associated with lower odds of having a suppressed viral load.

Conclusion

a higher suppression rate among female patients, suggests that more targeted interventions should be facilitated among HIV-positive male patients linkage to care and initiated on ART. Exposing the patient to a few enhanced support programs hinders progress toward reducing nonadherence, lack of awareness, and inadequate knowledge about the benefits of achieving viral suppression among people living with HIV.

'ARVs are a constant reminder of lost freedom, whereas for others, they are liberating': understanding the treatment narrative among people living with HIV (PLHIV) in Malawi and Zimbabwe-a qualitative study

OBJECTIVE

The aim of the research was to understand what drives and motivates young women living with HIV in their treatment journeys, as well as their key influencers. The findings will assist in appreciating their obstacles to treatment and constructing the most effective ways to convey fresh messages to them. These insights will contribute to the messaging developed for a campaign across sub-Saharan Africa, primarily Malawi and Zimbabwe.

DESIGN

This was a qualitative study conducted in order to build an understanding of unknown parts of the HIV treatment journey through in-depth interviews. A hybrid approach was used to conduct thematic analysis.

SETTING AND PARTICIPANTS

Study participants were HIV-positive women, their influencers (eg, parents/partners/siblings/aunts and uncles/religious leaders, etc) and healthcare providers from a range of regions in Zimbabwe and Malawi.

RESULTS

A total of 26 young people living with HIV (PLHIV), 29 healthcare providers and 24 influencers such as maternal figures in the community were interviewed. Two main broad insights were drawn, that is, key needs and wider contextual factors. The key needs of young PLHIV to stay on treatment were empathy, support and emotional connection with antiretroviral therapy (ART), while the wider contextual factors impacting their treatment journeys were structural challenges and cultural reference points. Fear of shame and humiliation can also be significant barriers to disclosure and treatment. The fear predisposes the PLHIV to the need for empathy, support and connection with ART. Mental health and anxiety appear to be comorbid with HIV. Some PLHIV have a small and limited support network leading to very few people living openly with HIV. There is no 'one-size-fits-all' approach, and maximising campaign reach will likely need a multifaceted approach.

CONCLUSION

Currently, the relationship between nurses and PLHIV can appear to be transactional. Through learning about the community (including PLHIV), there are more chances of communicating in a way that resonates.

Durable viral suppression among persons with HIV in the deep south: an observational study

This study assessed predictors of stable HIV viral suppression in a racially diverse sample of persons living with HIV (PWH) in the southern US. A total of 700 PWH were recruited from one of four HIV clinics in Metro Atlanta, GA. Data were collected from September 2012 to July 2017, and HIV viral loads were retrieved from EMR for 18 months. The baseline visits and EMR data were used for current analyses. Durable viral suppression was categorized as 1. Remain suppressed, 2. Remain unsuppressed, and 3. Unstable suppression. The number of antiretroviral medications and age were significantly associated with durable viral suppression. Older age, fewer ART medications and availability of social support were positively associated with durable viral suppression over the 18-month observation period. Findings suggest that regimen complexity is potentially a better predictor of viral suppression than self-reported medication adherence. The need for consensus on the definition of durable viral suppression is also urged.

Intersectionality-informed analysis of durable viral suppression disparities in people with HIV

OBJECTIVE

The aim of this study was to examine drivers of durable viral suppression (DVS) disparities among people with HIV (PWH) using quantitative intersectional approaches.

DESIGN

A retrospective cohort analysis from electronic health records informed by intersectionality to better capture the concept of interlocking and interacting systems of oppression.

METHODS

We analyzed data of PWH seen at a LGBTQ federally qualified health center in Chicago (2012-2019) with at least three viral loads. We identified PWH who achieved DVS using latent trajectory analysis and examined disparities using three intersectional approaches: Adding interactions, latent class analysis (LCA), and qualitative comparative analysis (QCA). Findings were compared with main effects only regression.

RESULTS

Among 5967 PWH, 90% showed viral trajectories consistent with DVS. Main effects regression showed that substance use [odds ratio (OR) 0.56, 0.46-0.68] and socioeconomic status like being unhoused (OR: 0.39, 0.29-0.53), but not sexual orientation or gender identity (SOGI) were associated with DVS. Adding interactions, we found that race and ethnicity modified the association between insurance and DVS ( P for interaction <0.05). With LCA, we uncovered four social position categories influenced by SOGI with varying rates of DVS. For example, the transgender women-majority class had worse DVS rates versus the class of mostly nonpoor white cisgender gay men (82 vs. 95%). QCA showed that combinations, rather than single factors alone, were important for achieving DVS. Combinations vary with marginalized populations (e.g. black gay/lesbian transgender women) having distinct sufficient combinations compared with historically privileged groups (e.g. white cisgender gay men).

CONCLUSION

Social factors likely interact to produce DVS disparities. Intersectionality-informed analysis uncover nuance that can inform solutions.

Virologic outcomes among adults with HIV using integrase inhibitor-based antiretroviral therapy

BACKGROUND

Integrase strand transfer inhibitor (InSTI)-based regimens have been recommended as first-line antiretroviral therapy (ART) for adults with HIV. But data on long-term effects of InSTI-based regimens on virologic outcomes remain limited. Here we examined whether InSTI improved long-term virologic outcomes compared with efavirenz (EFV).

METHODS

We included adults from the North American AIDS Cohort Collaboration on Research and Design who initiated their first ART regimen containing either InSTI or EFV between 2009 and 2016. We estimated differences in the proportion virologically suppressed up to 7 years of follow-up in observational intention-to-treat and per-protocol analyses.

RESULTS

Of 15 318 participants, 5519 (36%) initiated an InSTI-based regimen and 9799 (64%) initiated the EFV-based regimen. In observational intention-to-treat analysis, 81.3% of patients in the InSTI group and 67.3% in the EFV group experienced virologic suppression at 3 months after ART initiation, corresponding to a difference of 14.0% (95% CI 12.4-15.6). At 1 year after ART initiation, the proportion virologically suppressed was 89.5% in the InSTI group and 90.2% in the EFV group, corresponding to a difference of -0.7% (95% CI -2.1 to 0.8). At 7 years, the proportion virologically suppressed was 94.5% in the InSTI group and 92.5% in the EFV group, corresponding to a difference of 2.0% (95% CI -7.3 to 11.3). The observational per-protocol results were similar to intention-to-treat analyses.

CONCLUSIONS

Although InSTI-based initial ART regimens had more rapid virologic response than EFV-based regimens, the long-term virologic effect was similar. Our findings may inform guidelines regarding preferred initial regimens for HIV treatment.

Medicaid Expansion's Impact on Human Immunodeficiency Virus Outcomes in a Nonurban Southeastern Ryan White HIV/AIDS Program Clinic

Background

Although the Ryan White HIV/AIDS Program supports high-quality human immunodeficiency virus (HIV) care, Medicaid enrollment provides access to non-HIV care. People with HIV (PWH) with Medicaid historically have low viral suppression (VS) rates. In a state with previously high Qualified Health Plan coverage of PWH, we examined HIV outcomes by insurance status during the first year of Medicaid expansion (ME).

Methods

Participants were PWH ages 18–63 who attended ≥1 HIV medical visit/year in 2018 and 2019. We estimated associations of sociodemographic characteristics with ME enrollment prevalence and associations between insurance status and engagement in care and VS.

Results

Among 577 patients, 151 (33%) were newly eligible for Medicaid, and 77 (51%) enrolled. Medicaid enrollment was higher for those with incomes <100% federal poverty level (adjusted prevalence ratio, 1.67; 95% confidence interval [CI], 1.00–1.86) compared with others. Controlling for age, income, and 2018 engagement, those with employment-based private insurance (adjusted risk difference [aRD], −8.5%; 95% CI, −16.9 to 0.1) and Medicare (aRD, −12.5%; 95% CI, −21.2 to −3.0) had lower 2019 engagement than others. For those with VS data (n = 548), after controlling for age and baseline VS, those with Medicaid (aRD, −4.0%; 95% CI, −10.3 to 0.3) and with Medicaid due to ME (aRD, −6.2%; 95% CI, −14.1 to −0.8) were less likely to achieve VS compared with others.

Conclusions

Given that PWH who newly enrolled in Medicaid had high engagement in care, the finding of lower VS is notable. The discordance may be due to medication access gaps associated with changes in medication procurement logistics.