Topical rapamycin combined with pulsed dye laser in the treatment of capillary vascular malformations in Sturge-Weber syndrome: Phase II, randomized, double-blind, intraindividual placebo-controlled clinical trial
Background Sturge-Weber syndrome (SWS) is characterized by port-wine stains (PWS) affecting the face, eyes, and central nervous system. Pulsed dye laser (PDL) is the standard treatment for PWS. Unfortunately, recurrence is frequent because of reformation and reperfusion of blood vessels. Objective We sought to assess the clinical efficacy of topical rapamycin combined with PDL in PWS of patients with SWS.
Methods We conducted a phase II, randomized, double-blind, intraindividual placebo-controlled, clinical trial. We recruited 23 patients with SWS and facial PWS (12 women; median age 33 years, age range 17-65 years) from the University Clinic of Navarra, Spain. Four interventions were evaluated: placebo, PDL + placebo, rapamycin, and PDL + rapamycin. Clinical and histologic responses were evaluated using a chromatographic computerized system, spectrometry, and histologic analyses at 6, 12, and 18 weeks after the intervention.
Results PDL + rapamycin yielded the lowest digital photographic image score and the lowest percentage of vessels in histologic analysis, and showed a statistically significant improvement compared with the other interventions. The treatment was generally well tolerated.
Limitations PDL was only applied to the lateral parts of the PWS area. Conclusion Topical rapamycin associated with PDL seems to be an effective treatment for PWS in patients with SWS.