Journal Article > LetterAbstract Only
Lancet HIV. 2024 October 1; Volume 11 (Issue 10); e711-e716.; DOI:10.1016/S2352-3018(24)00173-5
Venter WDF, Gandhi M, Sokhela S, Sikwese K, Bygrave H, et al.
Lancet HIV. 2024 October 1; Volume 11 (Issue 10); e711-e716.; DOI:10.1016/S2352-3018(24)00173-5
Journal Article > ResearchFull Text
J Infect Dis. 2019 December 18; Volume 223 (Issue 8); DOI:10.1093/infdis/jiz667
Phillips AN, Cambiano V, Johnson LF, Nakagawa F, Homan R, et al.
J Infect Dis. 2019 December 18; Volume 223 (Issue 8); DOI:10.1093/infdis/jiz667
Abstract
INTRODUCTION:
Oral pre-exposure prophylaxis (PrEP) in the form of tenofovir-disoproxil-fumarate/emtricitabine is being implemented in selected sites in South Africa. Addressing outstanding questions on PrEP cost-effectiveness can inform further implementation.
METHODS:
We calibrated an individual-based model to KwaZulu-Natal to predict the impact and cost-effectiveness of PrEP, with use concentrated in periods of condomless sex, accounting for effects on drug resistance. We consider (i) PrEP availability for adolescent-girls-and-young-women (aged 15-24; AGYW) and female sex workers (FSW), and (ii) availability for everyone aged 15-64. Our primary analysis represents a level of PrEP use hypothesized to be attainable by future PrEP programmes.
RESULTS:
In the context of PrEP use in adults aged 15-64 there was a predicted 33% reduction in incidence, and 36% reduction in women aged 15-24. PrEP was cost effective, including in a range of sensitivity analyses, although with substantially reduced (cost) effectiveness under a policy of ART initiation with efavirenz- rather than dolutegravir-based regimens due to PrEP undermining ART effectiveness by increasing HIV drug resistance.
CONCLUSIONS:
PrEP use concentrated during time periods of condomless sex has the potential to substantively impact HIV incidence and be cost-effective.
INTRODUCTION:
Oral pre-exposure prophylaxis (PrEP) in the form of tenofovir-disoproxil-fumarate/emtricitabine is being implemented in selected sites in South Africa. Addressing outstanding questions on PrEP cost-effectiveness can inform further implementation.
METHODS:
We calibrated an individual-based model to KwaZulu-Natal to predict the impact and cost-effectiveness of PrEP, with use concentrated in periods of condomless sex, accounting for effects on drug resistance. We consider (i) PrEP availability for adolescent-girls-and-young-women (aged 15-24; AGYW) and female sex workers (FSW), and (ii) availability for everyone aged 15-64. Our primary analysis represents a level of PrEP use hypothesized to be attainable by future PrEP programmes.
RESULTS:
In the context of PrEP use in adults aged 15-64 there was a predicted 33% reduction in incidence, and 36% reduction in women aged 15-24. PrEP was cost effective, including in a range of sensitivity analyses, although with substantially reduced (cost) effectiveness under a policy of ART initiation with efavirenz- rather than dolutegravir-based regimens due to PrEP undermining ART effectiveness by increasing HIV drug resistance.
CONCLUSIONS:
PrEP use concentrated during time periods of condomless sex has the potential to substantively impact HIV incidence and be cost-effective.