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“Cheaper and better”: Societal cost savings and budget impact of changing from systemic to intralesional pentavalent antimonials as the first-line treatment for cutaneous leishmaniasis in Bolivia

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  • Daniel Eid Rodríguez
  • Miguel San Sebastian
  • Anni-Maria Pulkki-Brännström

Abstract

Introduction: Cutaneous leishmaniasis (CL), endemic in Bolivia, mostly affects poor people in rainforest areas. The current first-line treatment consists of systemic pentavalent antimonials (SPA) for 20 days and is paid for by the Ministry of Health (MoH). Long periods of drug shortages and a lack of safe conditions to deliver treatment are challenges to implementation. Intralesional pentavalent antimonials (ILPA) are an alternative to SPA. This study aims to compare the cost of ILPA and SPA, and to estimate the health and economic impacts of changing the first-line treatment for CL in a Bolivian endemic area. Methods: The cost-per-patient treated was estimated for SPA and ILPA from the perspectives of the MoH and society. The quantity and unit costs of medications, staff time, transportation and loss of production were obtained through a health facility survey (N = 12), official documents and key informants. A one-way sensitivity analysis was conducted on key parameters to evaluate the robustness of the results. The annual number of patients treated and the budget impact of switching to ILPA as the first-line treatment were estimated under different scenarios of increasing treatment utilization. Costs were reported in 2017 international dollars (1 INT$ = 3.10 BOB). Results: Treating CL using ILPA was associated with a cost-saving of $248 per-patient-treated from the MoH perspective, and $688 per-patient-treated from the societal perspective. Switching first-line treatment to ILPA while maintaining the current budget would allow two-and-a-half times the current number of patients to be treated. ILPA remained cost-saving compared to SPA in the sensitivity analysis. Conclusions: The results of this study support a shift to ILPA as the first-line treatment for CL in Bolivia and possibly in other South American countries. Author summary: Cutaneous leishmaniasis is a neglected tropical disease which causes chronic skin ulcers and disproportionally affects the poorest of the poor. The current first-line treatment, based on systemic pentavalent antimonials, is quite toxic for patients but also expensive for governments and patients. Given limited budgets, national decision-makers need to know not only the efficacy of alternative treatments, but also how to maximise the population health impact of available resources. To strengthen the evidence base for the scale-up of effective NTD interventions in the era of universal health coverage, we conducted cost-effectiveness analyses and estimations of population-level impact of the implementation of intralesional pentavalent antimonials as first-line treatment for cutaneous leishmaniasis using realistic scenarios. Our results demonstrate that changing first-line treatment would have considerable economic advantages for patients due to the shorter treatment duration (savings in terms of food, accommodation, transport, productivity loss); and for the national control program due to the reduced use of drugs and staff time. In addition, this change would offer better value for money given that two-and-a-half times the current number of patients could be treated with the current expenditure level if intralesional pentavalent antimonials were offered to eligible patients.

Suggested Citation

  • Daniel Eid Rodríguez & Miguel San Sebastian & Anni-Maria Pulkki-Brännström, 2019. "“Cheaper and better”: Societal cost savings and budget impact of changing from systemic to intralesional pentavalent antimonials as the first-line treatment for cutaneous leishmaniasis in Bolivia," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 13(11), pages 1-16, November.
  • Handle: RePEc:plo:pntd00:0007788
    DOI: 10.1371/journal.pntd.0007788
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