J Drugs Dermatol
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Randomized Controlled Trial Multicenter Study
A multicenter study of topical azelaic acid 15% gel in combination with oral doxycycline as initial therapy and azelaic acid 15% gel as maintenance monotherapy.
This two-phase, multicenter study was undertaken to examine the safety and efficacy of combination therapy with oral doxycycline and topical azelaic acid (AzA) 15% gel in moderate-to-severe papulopustular rosacea and to determine the effect of subsequent maintenance monotherapy with AzA 15% gel alone. In the initial open-label, non-randomized phase of the study, subjects (n=172) received topical AzA 15% gel and oral doxycycline (100 mg), both twice daily, for < or = 12 weeks. In the second, double-blind study phase, subjects who had initially undergone at least four weeks of combination treatment in phase 1 and who achieved > or = 75% inflammatory lesion count reduction (n=136) were randomized to receive either AzA 15% gel or its vehicle twice daily for an additional 24 weeks. ⋯ During the second study phase (maintenance phase), AzA 15% gel consistently provided a better maintenance response than vehicle, with maintenance of remission in 75% of patients over the six-month duration of the maintenance phase. Additionally AzA 15% gel showed a statistically significantly lower deterioration in absolute inflammatory lesion counts than did vehicle after 8, 16, 20 and 24 weeks of maintenance therapy. No serious treatment-related AEs were encountered in the study, and 98.5% of subjects were satisfied with the local tolerability of both AzA gel and vehicle.
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Randomized Controlled Trial Multicenter Study Comparative Study
Comparison of anti-inflammatory dose doxycycline versus doxycycline 100 mg in the treatment of rosacea.
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Randomized Controlled Trial
Long-pulsed dye laser-mediated photodynamic therapy combined with topical therapy for mild to severe comedonal, inflammatory, or cystic acne.
Acne patients who fail to respond to conventional treatments have been treated with isotretinoin, an effective treatment coming under strict regulation due to the risk of significant side effects. Photodynamic therapy (PDT) may be a viable alternative treatment for recalcitrant acne of various types and levels of severity. ⋯ For teenage to adult patients with recalcitrant comedonal, inflammatory, or cystic acne of various degrees of severity, ALA PDT with activation by LP PDL appears to be a safe and effective treatment with minimal side effects. LP PDL-mediated PDT may serve as an important alternative to isotretinoin. Cosmetically well-accepted, LP PDL PDT combined with topical therapy is the first PDT modality to achieve complete clearance with long-term follow-up as compared to controls.