Epidemiologic and Economic Analysis of Rapid Antiretroviral Therapy Initiation with Bictegravir/Emtricitabine/Tenofovir Alafenamide in Spain

From Clinical to Non-clinical Outcomes in the Treatment of HIV: An Economic and Organizational Impact Assessment

OBJECTIVE

The aim of this study was to define the economic and organizational impacts related to a broader utilization of bictegravir/emtricitabine/alafenamide (BIC/FTC/TAF) in Italian clinical practice.

METHODS

A budget impact analysis-representing the evolution of the Italian National Healthcare Service (NHS) healthcare expenditure over 3 years-was developed, considering the overall Italian population treated for human immunodeficiency virus (HIV). Model input variables were treatment history, therapeutic regimen, development of adverse events, achievement of an undetectable viral load and total direct healthcare costs. Besides the BIA, an organizational impact assessment was conducted to determine the impact on the use of healthcare resources, assessing the release of organizational hospital assets, focusing on the management of drug-related adverse events. Data were collected from scientific evidence, Italian national and regional legislations and healthcare professionals' reports. To verify the robustness of the economic and organizational impact assessment, sensitivity analyses were performed.

RESULTS

Results demonstrate economic savings of about 26 million euros in total health spending, assuming a higher penetration rate for BIC/FTC/TAF. This change in the current case mix would lead to a reduction in the specific costs related to adverse event management (0.9 million euros; - 2.09%) and in the medical management of patients (38 million euros; - 7.79%), with a positive impact on the achievement of virological control. From an organizational perspective, a wider use of BIC/FTC/TAF generates a reduction in the utilization of healthcare resources due to a decrease in adverse events and complications. The model estimated a 19.64% reduction in HIV-related inpatient days, which freed up healthcare professional time.

CONCLUSIONS

Capable of improving both economic and organizational sustainability for the entire HIV care continuum, BIC/FTC/TAF is an efficient therapeutic strategy for people with HIV.

Real-world clinical and economic outcomes from rapid start antiretroviral therapy in HIV: systematic review and meta-analysis

OBJECTIVE

We aimed to synthesize clinical and economic outcomes of rapid start versus nonrapid antiretroviral therapy (ART) in people with HIV (PWH) in real-world settings.

METHODS

A search was conducted in PubMed, Embase, Web of Science, and ProQuest from January 2017 to January 2023, supplementing a previous search by Ford et al . in 2018. Observational studies investigating clinical or economic outcomes of rapid start ART versus nonrapid ART in PWH were included. Clinical outcomes were mortality, loss-to-follow-up (LTFU), and viral suppression. Economic outcomes were incremental cost-effectiveness ratio (ICER) values and per patient per month (PPPM) costs. Meta-analyses using random-effects models were performed for clinical outcomes, whereas qualitative syntheses were conducted for economic outcomes. The quality of clinical and economic studies was assessed.

RESULTS

Sixty-two studies were included. The pooled adjusted risk ratio (aRR) for mortality demonstrated a significant reduction in risk of mortality among participants who received rapid start ART compared with nonrapid ART [0.80, 95% confidence interval (CI), 0.65-0.98]. For LTFU at 6 and 12 months, the pooled aRR showed increased LTFU for rapid start ART (1.33, 95% CI, 1.15-1.55 and 1.18, 95% CI, 0.74-1.89 respectively). All cost-effectiveness studies reported cost-saving or cost-effective findings. The PPPM costs of rapid start ART across the first 36 months of treatment were consistently lower than nonrapid ART.

CONCLUSION

Rapid ART is associated with reduced mortality and is cost-effective compared with nonrapid ART in real-world settings. Clinicians and policymakers should consider these findings to facilitate rapid start of ART in PWH. Further research on LTFU in PWH is needed.

Ottimizzazione nel trattamento del soggetto con HIV: analisi di impatto economico e organizzativo di Bictegravir/Emtricitabina/Tenofovir Alafenamide

Introduction:

Given the availability of a growing number of HIV treatment options, it becomes essential to have a clear understanding of the related economic-organizational evidence, to operate informed and conscious choices. The study aims to define the economic and organizational impact related to a consolidated use of Bictegravir/Emtricitabine/Tenofovir Alafenamide (BIC/FTC/TAF), within the Italian National Healthcare Service (NHS), for the treatment of both naïve and experienced HIV individuals.

Materials and methods:

A budget impact analysis was developed assuming the NHS perspective and considering a 36-month time horizon. Scenario A, representative of the current situation of consumption of the different therapeutic alternatives (derived from the most update guidelines), was compared with Scenario B, assuming a greater adoption of BIC/FTC/TAF. An organizational impact analysis was conducted to define any advantages for hospitals, devoted to the management of any ART-related adverse events.

Results:

The BIA revealed an economic saving of 0.97% (26,040,271.36 €) given a higher penetration rate for BIC/FTC/TAF, for the treatment of HIV individuals assuming ART in Italy. From an organizational perspective, a greater BIC/FTC/TAF administration would generate a reduction in the overall hospital accesses devoted to the management of adverse events, generating an overall saving of 245,938 hours, considering the time spent by the healthcare professionals involved in the care and treatment of individuals with HIV.

Conclusions:

BIC/FTC/TAF represent an interesting possibility for the rapid initiation of ART, as well as for switches, being able to optimize the clinical pathway of a patient with HIV, from an economic and organizational perspective.

Rapid antiretroviral therapy and treatment outcomes among people living with HIV: exploring the mediating roles of medication adherence

Introduction

The rapid initiation of antiretroviral therapy (ART) and its impact on treatment outcomes have been a subject of global public health interest. However, the precise mechanisms underlying the effects of rapid ART initiation remain unclear.

Methods

This retrospective cohort study examined data from 1846 HIV-infected individuals in Jiulongpo District, Chongqing, China, spanning from 2016 to 2022. Logistic regression models and serial mediation analysis were used to explore the influence of rapid ART initiation on treatment outcomes and the role of medication adherence as a mediating factor.

Results

The findings revealed a significant association between rapid ART initiation and reduced risk of viral failure (adjusted odds ratio [OR] = 0.320, 95% confidence interval [CI] = [0.161, 0.637]), as well as an increased likelihood of improved adherence (adjusted OR = 2.053, 95% CI = [1.226, 3.438]). Medication adherence was identified as a partial mediator in the relationship between rapid ART initiation and viral failure, explaining 10.5% of the total effect.

Discussion

In conclusion,rapid initiation of antiretroviral therapy was found to enhance treatment outcomes, emphasizing the importance of early adherence education. The study recommends early initiation of ART coupled with adherence education and psychological counseling for HIV-infected individuals.

Factors influencing rapid antiretroviral therapy initiation in Jiulongpo, Chongqing, China: a retrospective cohort from 2018 to 2022

BACKGROUND

Antiretroviral Therapy (ART) is pivotal in extending the lives of people living with HIV (PLWH) and minimizing transmission. Rapid ART initiation, defined as commencing ART within seven days of HIV diagnosis, is recommended for all PLWH.

METHOD

A retrospective cohort study was conducted using data from the China Information System for Disease Control and Prevention. This study included PLWH diagnosed between January 2018 and December 2021 and treated by December 2022. Factors influencing rapid ART initiation were examined using univariate and multivariate Cox regression analyses.

RESULTS

The study analyzed 1310 cases. The majority were male (77.4%), over 50 years old (46.7%), and contracted HIV through heterosexual transmission (70.0%). Rapid ART initiation was observed in 36.6% (n = 479) of cases, with a cumulative treatment rate of 72.9% within 30 days post-diagnosis. Heterosexual contact was associated with longer intervals from diagnosis to treatment initiation compared to homosexual contact (Adjusted Hazard Ratio (HR) = 0.813, 95% Confidence Interval (CI): 0.668-0.988). Individuals older than 50 years (Adjusted HR = 1.852, 95%CI: 1.149-2.985) were more likely to initiate ART rapidly. Conversely, treatment at the Second Public Hospital (Adjusted HR = 0.483, 95% CI: 0.330-0.708) and a CD4 cell counts above 500 (Adjusted HR = 0.553, 95% CI: 0.332-0.921) were associated with a lower likelihood of initiating treatment within seven days.

CONCLUSIONS

A higher CD4 cell counts and receiving care in local public hospitals may deter rapid ART initiation. Providing CD4 counts results at diagnosis and offering testing and treatment in the same facility could enhance the rate of rapid ART initiation.

Rapid initiation of antiretroviral therapy in Turkey: a modeling study

Background

To effectively control the HIV epidemic and meet global targets, policymakers recommend the rapid initiation of antiretroviral therapy (ART). Our study aims to investigate the effect of rapid ART programs on individuals diagnosed with HIV, considering varying coverage and initiation days after diagnosis, and compare it to standard-of-care ART treatment in Turkey.

Methods

We used a dynamic compartmental model to simulate the dynamics of HIV infection in Turkey. Rapid treatment, defined as initiation of ART within 7 days of diagnosis, was contrasted with standard-of-care treatment, which starts within 30 days of diagnosis. This study considered three coverage levels (10%, 50%, and 90%) and two rapid periods (7 and 14 days after diagnosis), comparing them to standard-of-care treatment in evaluating the number of HIV infections between 2020 and 2030.

Results

Annual HIV incidence and prevalence for a 10-year period were obtained from model projections. In the absence of a rapid ART program, the model projected approximately 444,000 new HIV cases while the number of cases were reduced to 345,000 (22% reduction) with 90% of diagnosed cases included in the rapid ART program. Similarly, 10% and 50% rapid ART coverage has resulted in 3% and 13% reduction in HIV prevalence over a 10-year period.

Conclusion

Rapid ART demonstrates the potential to mitigate the increasing HIV incidence in Turkey by reducing the number of infections. The benefit of the rapid ART program could be substantial when the coverage of the program reaches above a certain percentage of diagnosed population.

Biktarvy for the treatment of HIV infection: Progress and prospects

Bictegravir (BIC), a second-generation integrase strand-transfer inhibitor (INSTI) with high resilience to INSTI-resistance mutations, is integrated as a key component of Biktarvy® - a fixed-dose once-daily triple-drug regimen of bictegravir (BIC), emtricitabine (FTC) plus tenofovir alafenamide (TAF). Based on the accumulated evidence from HIV clinical trials and real-world studies, the clinical effectiveness of BIC + FTC + TAF has been proven non-inferior to other fixed-dose once-daily combinations such as dolutegravir + FTC + TAF and dolutegravir + abacavir + lamivudine. Biktarvy also shows limited drug-drug interactions and a high barrier to drug resistance. According to recent HIV guidelines, BIC + FTC + TAF is recommended as initial and long-term therapy for the treatment of HIV infection. For the pre-exposure prophylaxis, tenofovir disoproxil fumarate (TDF) or tenofovir alafenamide (TAF) remains advisable, but BIC may be possibly added to TDF or TAF. In the development of a long-acting once-monthly regimen, the novel nano-formulation of BIC + FTC + TAF could be possibly developed in the future.

Rapid start antiretroviral therapies for improved engagement in HIV care: implementation science evaluation protocol

BACKGROUND

In 2020, the Health Resources and Services Administration's HIV/AIDS Bureau funded an initiative to promote implementation of rapid antiretroviral therapy initiation in 14 HIV treatment settings across the U.S. The goal of this initiative is to accelerate uptake of this evidence-based strategy and provide an implementation blueprint for other HIV care settings to reduce the time from HIV diagnosis to entry into care, for re-engagement in care for those out of care, initiation of treatment, and viral suppression. As part of the effort, an evaluation and technical assistance provider (ETAP) was funded to study implementation of the model in the 14 implementation sites.

METHOD

The ETAP has used implementation science methods framed by the Dynamic Capabilities Model integrated with the Conceptual Model of Implementation Research to develop a Hybrid Type II, multi-site mixed-methods evaluation, described in this paper. The results of the evaluation will describe strategies associated with uptake, implementation outcomes, and HIV-related health outcomes for patients.

DISCUSSION

This approach will allow us to understand in detail the processes that sites to implement and integrate rapid initiation of antiretroviral therapy as standard of care as a means of achieving equity in HIV care.