This multicenter clinical trial will be conducted in Colombia, under the Centra Internacional de Entrenamiento en Investigaciones Medicas (CIDEIM) coordination in collaboration with Lyda Osorio, MD, PhD as Project 1 of the ICIDR program. This study will compare the efficacy and tolerability of the new oral drug, miltefosine with the standard drug therapy, Glucantime in children with cutaneous leishmaniasis (CL) caused by Leishmania of the Viannia subgenus. Pentavalent antimonials have been the standard treatment for CL for more than 50 years in spite of its parenteral use, high toxicity and relative high costs. On the other hand, children constitute a highly vulnerable population since more than 23% of the cases in the major Colombian endemic regions are patients under 12 years of age. Children also have a lower response to antimonial treatment explained by the different pharmacokinetic behaviour in these ages, where approximately half of the exposure to the drug is observed as a result of having twice the clearance rate as compared to adults. These data, along with the different immune response, make children bellow 12 years a population at high risk of treatment failure, increased morbidity, aesthetically deleterious scars or mucosal involvement. 120 children below 12 years will be enrolled. Half of the randomized patients will receive Glucantime 20mg/kg/day for 20 days (standard treatment), and the other half will receive miltefosine 2.5mg/kg/day for 28 days. A 60% efficacy of antimonials and 90% efficacy of miltefosine is expected. Clinical response will be assessed at the end of the treatment, and at 13 and 26 weeks. Also the presence of adverse events will be identified by clinical and laboratory examination. Ethical approval from the Institutional Review Boards at CIDEIM and other participation institutions will be obtained. The availability of an efficacious, tolerable, orally administrable treatment for dermal leishmaniasis would revolutionize the treatment and perhaps even the prevention of this disease.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Program--Cooperative Agreements (U19)
Project #
5U19AI065866-02
Application #
7310344
Study Section
Special Emphasis Panel (ZAI1)
Project Start
Project End
Budget Start
2006-05-01
Budget End
2007-04-30
Support Year
2
Fiscal Year
2006
Total Cost
$218,337
Indirect Cost
Name
Yale University
Department
Type
DUNS #
043207562
City
New Haven
State
CT
Country
United States
Zip Code
06520
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Carrasquilla, María C; Munstermann, Leonard; Marín, Dairo et al. (2012) Description of Lutzomyia (Helcocyrtomyia) tolimensis, a new species of phlebotomine sandfly (Diptera: Psychodidae) from Colombia. Mem Inst Oswaldo Cruz 107:993-7
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Ramírez, Carolina; Díaz-Toro, Yira; Tellez, Jair et al. (2012) Human macrophage response to L. (Viannia) panamensis: microarray evidence for an early inflammatory response. PLoS Negl Trop Dis 6:e1866
Ocampo, C B; Ferro, M C; Cadena, H et al. (2012) Environmental factors associated with American cutaneous leishmaniasis in a new Andean focus in Colombia. Trop Med Int Health 17:1309-17
Jayakumar, Asha; Castilho, Tiago M; Park, Esther et al. (2011) TLR1/2 activation during heterologous prime-boost vaccination (DNA-MVA) enhances CD8+ T Cell responses providing protection against Leishmania (Viannia). PLoS Negl Trop Dis 5:e1204
Gallego, Carolina; Golenbock, Douglas; Gomez, Maria Adelaida et al. (2011) Toll-like receptors participate in macrophage activation and intracellular control of Leishmania (Viannia) panamensis. Infect Immun 79:2871-9

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