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Sponsored by: |
PhotoCure |
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Information provided by: | PhotoCure |
ClinicalTrials.gov Identifier: | NCT00306800 |
The purpose of this study is to compare the efficacy of Photodynamic Therapy (PDT) with methyl aminolevulinate (MAL) cream to PDT with vehicle cream, using the the LED light source Aktilite CL128, in treatment of patients with multiple actinic keratosis (sun-damaged skin) on the face and / or scalp
Condition | Intervention | Phase |
---|---|---|
Actinic Keratosis |
Procedure: Photodynamic therapy with methyl aminolevulinate cream |
Phase III |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Double-Blind, Placebo Control, Parallel Assignment, Efficacy Study |
Official Title: | A Multicenter, Double Blind, Vehicle-Controlled, Randomized Study of Photodynamic Therapy (PDT) With Metvix 160 Mg/g Cream and Aktilite CL128 LED Light in Patients With Multiple Actinic Keratosis on the Face and/or Scalp |
Estimated Enrollment: | 80 |
Study Start Date: | September 2007 |
Study Completion Date: | October 2007 |
Actinic keratoses are pre-malignant skin lesions, which may develop to squamous cell carcinomas (SCC). They are usually small, thin, erythematous, de-squamating lesions on light exposed atrophic skin and the lesions are often multiple.
Photodynamic therapy (PDT) is the selective destruction of abnormal cells through light activation of a photosensitiser in the presence of oxygen. These cells accumulate more photosensitiser than normal cells. The photosensitiser generates reactive oxygen species upon illumination.
For skin diseases, such as actinic keratosis (AK), there has been an increasing interest in using topically applied precursors of the photoactive porphyrins (PAP). The most commonly used precursors have been 5-aminolevulinic acid (ALA) and its derivatives. The present test drug contains methyl aminolevulinate, which penetrates the lesions well and shows high lesion selectivity.
Different light sources (i.e. CureLight, Aktilite CL16 and Aktilite CL128) have been used for the activation of PAP, which absorbs light in the range of 400-700 nm. The present study uses the Aktilite CL 128 lamp. Aktilite 128 is based on LED technology and emits a narrow red light spectrum with an average wavelength of 630 (+/-5) nm.
This study is similar to two other studies performed, on which the U.S. approval of Metvixia® cream is based except for the light source used. This study is one of two studies performed to document the safety and efficacy of the Aktilite CL 128 lamp when used in combination with Metvixia® cream.
Previous studies have shown that the risks attributed to Metvixia® PDT are few and related mainly to transient pain and local erythema during and shortly after treatment. These reactions are part of the expected local phototoxicity reaction. PDT offers an advantage to other treatment modalities for actinic keratosis, being a non-invasive treatment available on an outpatient basis. Several separate lesions can be treated simultaneously and the same lesion(s) can be treated repeatedly with success. There are no known systemic toxicity or interaction with other medication. The treatment is also lesion selective, leaving the surrounding tissue intact and functional, also allowing excellent cosmetic results after treatment.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
United States, Florida | |
Spencer Dermatology and Skin Surgery | |
Saint Petersburg, Florida, United States, 33716-1115 | |
United States, New York | |
Laser and Skin Surgery Center | |
New York, New York, United States, 10016 | |
Dermatology Associates of Rochester | |
Rochester, New York, United States, 14623 | |
United States, Ohio | |
The Cleveland Clinic | |
Cleveland, Ohio, United States, 44195 | |
United States, Texas | |
Texas Dermatology Research Institute | |
Dallas, Texas, United States, 75230 | |
Dermresearch Inc | |
Austin, Texas, United States, 78759 | |
Suzanne Bruce and Associates, PA | |
Houston, Texas, United States, 77056 |
Principal Investigator: | David Pariser, MD | Virginia Clinical Research |
Study ID Numbers: | PC T404/05 |
Study First Received: | March 22, 2006 |
Last Updated: | October 10, 2007 |
ClinicalTrials.gov Identifier: | NCT00306800 History of Changes |
Health Authority: | United States: Food and Drug Administration |
Methyl aminolevulinate Photodynamic therapy Aktilite CL128 LED light source Multiple Actinic Keratosis |
Photosensitizing Agents Keratosis Radiation-Sensitizing Agents Skin Diseases |
Facies Methyl 5-aminolevulinate Tylosis Aminolevulinic Acid |
Photosensitizing Agents Keratosis Radiation-Sensitizing Agents Skin Diseases Therapeutic Uses |
Physiological Effects of Drugs Methyl 5-aminolevulinate Dermatologic Agents Pharmacologic Actions Aminolevulinic Acid |