ArticleThe Lancet regional health. Southeast Asia2022
The epidemiological impact and cost-effectiveness of key population-led PrEP delivery to prevent HIV among men who have sex with men in Thailand: A modelling study.
Article in The Lancet regional health. Southeast Asia, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.
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Who cites it
5 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Prospects of HIV elimination among men who have sex with men: A systematic review of modeling studies.PLoS computational biology · 2026Pooled it
- Evolving landscape of economic evaluations of HIV pre-exposure prophylaxis and pre-exposure prophylaxis implementation strategies: a systematic review.Journal of the International AIDS Society · 2025Pooled it
- Cost-effectiveness of eHealth-based HIV pre-exposure intervention for recreational drugs using among men who have sex with men in China: a modelling study.BMC public health · 2025Article
- Seizing the moment: the potential of PrEP choice and innovation to transform HIV prevention.Journal of the International AIDS Society · 2025Article
- Pharmacoeconomic perspectives on HIV: integrating data for long-term treatment and prevention.Frontiers in medicine · 2025Review
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Authors and funding
14 authors.
Funding
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Abstract
Background: Although key populations (KPs), such as men-who-have-sex-with-men (MSM) are disproportionately affected by HIV, many prevention and treatment services are not easily accessible for KP members. To address the needs of KPs, Thailand established pre-exposure prophylaxis (PrEP) service delivery together with and led by KP members. This study determines the epidemiological impact and cost-effectiveness of key population-led (KP-led) PrEP. Methods: We calibrated a compartmental deterministic HIV transmission model to the HIV epidemic among Thai MSM. Besides KP-led PrEP, we included other Thai service delivery models of PrEP (fee-based PrEP, the government PrEP program).Data on consistent PrEP use (5 years daily use, 95% effectiveness for preventing HIV) came from Thai PrEP delivery models. For the period 2015-2032, we ranged the number of PrEP starters (40,000-120,000), effectiveness of PrEP (45%-95%), and proportion of consistent users (10%-50%). The analysis started in 2015 when PrEP was introduced. A cost-effectiveness ratio of <160,000 Baht per quality-adjusted life year (QALY) over 40 years was cost-effective. Findings: Without PrEP, 53,800 (interquartile range 48,700-59,700) new HIV infections are expected in 2015-2032. KP-led PrEP was found to have the strongest epidemiological impact of all delivery models averting 58% of infections compared to without PrEP. The epidemiological impact depends on the number of PrEP starters and proportion of consistent use. Although all PrEP service delivery models are cost-effective, KP-led PrEP is most cost-effective with incremental cost-effectiveness ratios of 28,000-37,300 Thai Baht per QALY. Interpretation: Our model projects KP-led PrEP having the greatest epidemiological impact and being the most cost-effective service delivery model of PrEP in Thailand. Funding: This study was supported by the US Agency for International Development and U.S. President's Emergency Plan for AIDS Relief through the Linkages Across the Continuum of HIV Services for Key Populations cooperative agreement (AID-OAA-A-14- 0045) managed by FHI 360.
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