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Study of the Efficacy of Daylight Activated Photodynamic Therapy in the Treatment of Cutaneous Leishmaniasis

NCT00840359 · Status: UNKNOWN · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 44

Last updated 2011-08-16

No results posted yet for this study

Summary

The aim of the project is to determine whether daylight activated photodynamic therapy is effective in treating cutaneous leishmaniasis caused by L. major and L. tropical.

PDT is classically performed as a two-step procedure in which MAL application to the lesion constitutes the first step, and PpIX activation by light of appropriate wavelength from an artificial light source constitutes the second step. Based on the knowledge that red and blue light required to activate PpIX are part of the daylight spectrum, the investigators postulated that effective PpIX activation can be obtained by exposure of the MAL treated lesions to daylight thus substantially simplifying the PDT procedure by omitting the 3 hour incubation period and the subsequent exposure to artificial light. In accord, in a recent study the investigators showed that daylight-activated PDT (DA-PDT) was as effective as conventional MAL-PDT in treating precancerous actinic keratoses lesion. Furthermore the investigators found that DA-PDT is significantly less painful than conventional MAL-PDT.

The investigators now propose to study the efficacy of DA-PDT in the treatment of cutaneous leishmaniasis. DA-PDT has obvious advantages to conventional leishmania treatment forms:

As opposed to most of the available treatment options, DA-PDT is a self-administered procedure that does not require the assistance of medical personnel. Secondly, judged by our experience with MAL-PDT, only few treatment sessions are required for effective parasite killing as opposed to the prolonged procedures usually required for treatment of leishmaniasis. Third, PDT has the far the best safety profile of all available treatment options.

Conditions

  • Cutaneous Leishmaniasis

Interventions

PROCEDURE

Photodynamic therapy

Application of Metvix 16% cream followed by exposure to daylight for 2.5 hours

PROCEDURE

Cryotherapy

Cryotherapy for 2 times 20 sec

Sponsors & Collaborators

  • Hadassah Medical Organization

    lead OTHER

Principal Investigators

  • Claes D Enk, MD, PhD · Hadassah Medical Organization

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2009-09-30
Primary Completion
2012-10-31
Completion
2012-12-31

Countries

  • Israel

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00840359 on ClinicalTrials.gov