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Clinical Trial Summary

This study will evaluate the safety and immunogenicity of the Leish-111f + MPL-SE vaccine in adult subjects who have no evidence of previous exposure to the Leishmania parasite.


Clinical Trial Description

Cutaneous leishmaniasis is a disfiguring disease that can progress to mucosal leishmaniasis, a more serious and possibly fatal form of Leishmania disease. All available medical therapies require weeks of treatment and cause significant toxicity.

It appears that Leishmania infections can be eliminated or prevented by T helper 1 immune responses. These findings argue that a vaccine that generates a T helper 1 response against the parasite will prevent the infection and disease. This is a phase 2, randomized, double blind, placebo-controlled study to evaluate the safety, tolerability and immunogenicity in Montenegro skin test (MST)-negative healthy adults of an investigational vaccine being developed for the prophylaxis of cutaneous leishmaniasis. The vaccine, identified as Leish-111f + MPL-SE, consists of a recombinant three-antigen Leishmania polyprotein (Leish-111f, 10 μg) together with the adjuvant MPL-SE (25 μg). In addition, the safety and immunogenicity of the vaccine will be compared to that of the Leish-111f protein (10 μg) given alone. The vaccine, Leish-111f protein alone or placebo will be given to each study subject three times at 4 week intervals. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT00121862
Study type Interventional
Source IDRI
Contact
Status Completed
Phase Phase 2
Start date August 2005
Completion date March 2006

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