Study to Evaluate the Leish-111F + MPL-SE Vaccine in the Treatment of Mucosal Leishmaniasis

February 13, 2007 updated by: IDRI

A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Dose-Escalating Study to Evaluate Safety, Tolerability, and Immunogenicity of Leish-111f + MPL-SE Vaccine in Combination With Pentavalent Antimony in Treatment of Mucosal Leishmaniasis

The purpose of this study is to evaluate the safety of the Leish-111f + MPL-SE vaccine given as three injections every 28 days at each of three dose levels of Leish-111f protein, in combination with standard pentavalent antimony therapy in adult patients with mucosal leishmaniasis.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Mucosal leishmaniasis is a disfiguring and possibly fatal infection. All available medical therapies require weeks of treatment and cause significant toxicity. In Peru, the standard therapy is daily intravenous (IV) pentavalent antimony (20 mg/kg/day) for 28 days. It appears that Leishmania infections can be eliminated by T helper 1 immune responses. These findings argue that a vaccine that augments mucosal leishmaniasis patients' T helper 1 responses will eliminate the infection and disease. This study is a phase 1, randomized, double-blind, placebo controlled, sequential dose-escalating trial to evaluate the safety and immunogenicity of three injections of 5, 10, or 20 μg of Leish-111f protein + 25 μg of MPL-SE adjuvant given at 4 week intervals as an adjunct to standard chemotherapy with pentavalent antimony (20 mg/kg/day for 28 days) in patients with mucosal leishmaniasis.

Study Type

Interventional

Enrollment

48

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Peru
      • Cusco, Peru
        • Clínica de Leishmaniasis, Hospital Nacional Sur Este EsSalud
      • Lima, Peru, 100
        • Universidad Peruana Cayetano Heredia

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with mucosal leishmaniasis confirmed by a positive smear, in vitro culture or PCR test

Exclusion Criteria:

  • Mucosal leishmaniasis must not involve the vocal cords or cause respiratory distress, and there must be no evidence of other disease.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Adverse events
Occurrence of dose-limiting toxicity

Secondary Outcome Measures

Outcome Measure
IgG and T-cell response to Leish-111f vaccine
Leish-111f skin test reactivity
Safety of the vaccine with respect to the clinical course of mucosal leishmaniasis

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

IDRI

Collaborators

Bill and Melinda Gates Foundation

Investigators

  • Principal Investigator: Alejandro Llanos-Cuentas, MD, Universidad Peruana Cayetano Heredia

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2004

Study Completion

May 1, 2006

Study Registration Dates

First Submitted

May 20, 2005

First Submitted That Met QC Criteria

May 20, 2005

First Posted (ESTIMATE)

May 23, 2005

Study Record Updates

Last Update Posted (ESTIMATE)

February 15, 2007

Last Update Submitted That Met QC Criteria

February 13, 2007

Last Verified

February 1, 2007

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IDRI-LMVTC-102

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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