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

NCT ID: NCT00840359

Last Updated: 2011-08-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-09-30

Study Completion Date

2012-12-31

Brief Summary

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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.

Detailed Description

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Conditions

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Cutaneous Leishmaniasis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1 PDT

Leishmania lesion

Group Type EXPERIMENTAL

Photodynamic therapy

Intervention Type PROCEDURE

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

Cryo

Leishmania lesion

Group Type ACTIVE_COMPARATOR

Cryotherapy

Intervention Type PROCEDURE

Cryotherapy for 2 times 20 sec

Interventions

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Photodynamic therapy

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

Intervention Type PROCEDURE

Cryotherapy

Cryotherapy for 2 times 20 sec

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* At least 2 skin lesions with leishmania caused by L. major or L. tropica

Exclusion Criteria

* Pregnant or lactating women
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hadassah Medical Organization

OTHER

Sponsor Role lead

Responsible Party

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Hadassah Medical Organization

Principal Investigators

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Claes D Enk, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Hadassah Medical Organization

Locations

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Hadassah Medical Organization

Jerusalem, , Israel

Site Status

Countries

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Israel

Other Identifiers

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LeishDAPDT-HMO-CTIL

Identifier Type: -

Identifier Source: org_study_id

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