Cost-Effectiveness of Accelerated HIV Response Scenarios in Côte d’Ivoire

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Background:Despite Côte d’Ivoire epidemic being labelled as ‘generalized’, key populations (KP) are important to overall transmission. Using a dynamic model of HIV transmission, we previously estimated the impact of several treatment-as-prevention strategies that reached –or missed– the UNAIDS 90-90-90 targets in different populations groups, including KP and clients of female sex workers (CFSW). To inform program planning and resources allocation, we assessed the cost-effectiveness of these scenarios.Methods:Costing was performed from the provider’s perspective. Unit costs were obtained from the Ivorian Programme national de lutte contre le Sida (USD 2015) and discounted at 3%. Net incremental cost-effectiveness ratios (ICER) per adult HIV infection prevented and per disability-adjusted life years (DALY) averted were estimated over 2015-2030.Results:The three most cost-effective and affordable scenarios were the ones that projected current programmatic trends (ICER=$210; 90% uncertainty interval [90UI%]: $150-$300), attaining the 90-90-90 objectives among KP and CFSW (ICER=$220; 90%UI: $80-$510), and among KP only (ICER=$290; 90%UI: $90-$660). The least cost-effective scenario was the one that reached the UNAIDS 90-90-90 target accompanied by a 25% point drop in condom use in KP (ICER=$710; 90%UI: $450-$1,270). In comparison, the UNAIDS scenario had a net ICER of $570 (90%UI: $390-$900) per DALY averted.Conclusions:According to commonly used thresholds, accelerating the HIV response can be considered very cost-effective for all scenarios. However, when balancing epidemiological impact, cost-effectiveness, and affordability, scenarios that sustain both high condom use and rates of viral suppression among KP and CFSW appear most promising in Côte d’Ivoire.This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal.

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