Comparison Between 5-aminolevulinic Acid Photodynamic Therapy Versus

Status Completed

Clinical Trial Summary

This study aims to compare in a prospective and randomized way actinic keratosis treatment with 5-aminolevulinic acid photodynamic therapy versus cryotherapy, from the standpoint of therapeutic efficacy, pain, and cosmetic results.

Clinical Trial Description

Actinic keratosis is a skin lesion induced by chronic sun exposure with a significant prevalence and malignant potential for squamous cell carcinoma, which makes essential its treatment. Today there are several possible therapies, where cryotherapy is usually applied in our practice. Photodynamic therapy (PDT)is another method also widespread for keratosis which involves the administration of a topical precursor drug which produces endogenous photosensitising substances activated by specific light, selectively destroying the diseased tissue. This study aims to evaluate the use the drug formulation for photodynamic therapy 5-aminolevulinic acid (5-ALA) associated with dimethyl sulfoxide, comparing its efficacy with conventional cryotherapy, and also pain and cosmetic results. This project enrolled 137 outpatients from the Department of Cutaneous Oncology of Barretos Cancer Hospital - Pio XII Foundation, with symmetrical and comparable keratosis in their upper limbs. With the same patient as controls, side arm and therapy to be used were randomized: cryotherapy or photodynamic therapy. For cryotherapy was utilized bottles of liquid nitrogen (Cry-ac, 500ml); and for photodynamic therapy was utilized incoherent red light lamp with a total dosis of 37J/cm² . There was one or two sessions of each therapy , at 0 and 3 months; and three assessments for evaluation were done at 0, 3 and 6 months of onset. The evaluations on efficacy were in terms of area regression, and classified as complete response or no response. Pain was assessed by visual analogue scale, and numerical scale. Cosmesis was evaluated with the presence or not, objectively, of hyper, hypopigmentation or scar retraction. Finally, patient's preference regarding utilized therapeutics was noted by the researcher. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01459393
Study type	Interventional
Source	Barretos Cancer Hospital
Contact
Status	Completed
Phase	Phase 3
Start date	November 2010
Completion date	November 2011

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Comparison Between 5-aminolevulinic Acid Photodynamic Therapy Versus Cryotherapy for Actinic Keratosis Treatment

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms