Title

A Clinical Trial to Evaluate the Safety and Immunogenicity of the LEISH-F1+MPL-SE Vaccine When Used in Combination With Sodium Stibogluconate for the Treatment of Mucosal Leishmaniasis

Publication Date

10-28-2010

Document Type

Article

Abstract

Adult patients with mucosal leishmaniasis (ML) were enrolled in a randomized, double-blind, placebo-controlled, dose-escalating clinical trial and were randomly assigned to receive three injections of either the LEISH-F1+MPL-SE vaccine (consisting of 5, 10, or 20 μg recombinant Leishmania polyprotein LEISH-F1 antigen+25 μg MPL(®)-SE adjuvant) (n=36) or saline placebo (n=12). The study injections were given subcutaneously on Days 0, 28, and 56, and the patients were followed through Day 336 for safety, immunological, and clinical evolution endpoints. All patients received standard chemotherapy with sodium stibogluconate starting on Day 0. The vaccine was safe and well tolerated, and induced both humoral and cell-mediated immune responses. Furthermore, intracellular cytokine staining showed an increase in the proportion of memory LEISH-F1-specific IL-2(+) CD4 T-cells after vaccination, which was associated with clinical cure. This clinical trial shows that the LEISH-F1+MPL-SE vaccine is safe and immunogenic in patients with ML.

Publication Title

Vaccine

Volume

28

Issue

46

First Page

7427

Last Page

7435

DOI

10.1016/j.vaccine.2010.08.092

Version

pre-print, post-print (with 12 month embargo)

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