PMID- 16865869 OWN - NLM STAT- MEDLINE DCOM- 20061114 LR - 20220408 IS - 1545-9616 (Print) IS - 1545-9616 (Linking) VI - 5 IP - 7 DP - 2006 Jul-Aug TI - Similar effectiveness of methyl aminolevulinate and 5-aminolevulinate in topical photodynamic therapy for nodular basal cell carcinoma. PG - 642-5 AB - BACKGROUND: Photodynamic therapy (PDT) for basal cell carcinoma (BCC) is a treatment modality that is increasingly used in dermato-oncology. Currently, 2 topical photosensitizers, 5-aminolevulinate (ALA) and methyl aminolevulinate (MAL) are widely used, but their efficacy in BCC has not yet been compared in a clinical setting. OBJECTIVE: To evaluate the effect, degree of pain, and costs of ALA-PDT versus MAL-PDT in nodular BCC (nBCC). METHODS: Patients suffering from BCC were randomly assigned to either ALA-PDT (n=22) or MAL-PDT (n=21) in a pilot study. In each group, half of the tumors were debulked prior to PDT. Eight weeks after treatment, the therapeutic outcome was checked histologically. Pain scores were assessed using a visual analogue scale. RESULTS: Residual tumor tissue was detected in 6 BCCs of each study group. No significant difference between ALA-PDT and MAL-PDT was found with regard to therapeutic efficacy and pain scores. Of note, however, the costs of MAL-PDT were 6-fold higher than those of ALA-PDT. CONCLUSIONS: In this study we did not observe any differences in short-term efficacy between ALA-PDT and MAL-PDT. Therefore, both ALA and MAL can be equally recommended as topical photosensitizers in PDT. FAU - Kuijpers, Danielle I AU - Kuijpers DI AD - Department of Dermatology, University Hospital Maastricht, Maastricht, The Netherlands. dku@sder.azm.nl FAU - Thissen, Monique R AU - Thissen MR FAU - Thissen, Carleine A AU - Thissen CA FAU - Neumann, Martino H AU - Neumann MH LA - eng PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PL - United States TA - J Drugs Dermatol JT - Journal of drugs in dermatology : JDD JID - 101160020 RN - 0 (Photosensitizing Agents) RN - 88755TAZ87 (Aminolevulinic Acid) SB - IM MH - Administration, Topical MH - Aminolevulinic Acid/administration & dosage/*analogs & derivatives/*therapeutic use MH - Carcinoma, Basal Cell/*drug therapy MH - Humans MH - Pain Measurement MH - *Photochemotherapy MH - Photosensitizing Agents/therapeutic use MH - Pilot Projects MH - Skin Neoplasms/*drug therapy MH - Treatment Outcome EDAT- 2006/07/27 09:00 MHDA- 2006/11/15 09:00 CRDT- 2006/07/27 09:00 PHST- 2006/07/27 09:00 [pubmed] PHST- 2006/11/15 09:00 [medline] PHST- 2006/07/27 09:00 [entrez] PST - ppublish SO - J Drugs Dermatol. 2006 Jul-Aug;5(7):642-5.