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Background Dutasteride has been proposed as an effective therapy for frontal fibrosing alopecia (FFA). Objectives We sought to describe the therapeutic response to dutasteride and the most effective dosage in FFA compared with other therapeutic options or no treatment. Methods This was a retrospective observational study including patients with FFA with a minimum follow-up of 12 months. Therapeutic response was evaluated according to the stabilization of the hairline recession. Results A total of 224 patients (222 females) with a median follow-up of 24 months (range 12-108 months) were included. The stabilization rate for the frontal, right, and left temporal regions after 12 months was 62%, 64%, and 62% in the dutasteride group (n = 148), 60%, 35%, and 35% with other systemic therapies (n = 20), and 30%, 41%, and 38% without systemic treatment (n = 56; P = .000, .006, and .006, respectively). Stabilization showed a statistically significant association with an increasing dose of dutasteride (88%, 91%, and 84% with a weekly treatment of 5 or 7 doses of 0.5 mg [n = 32], P Limitations Limitations included the observational and retrospective design. Conclusions Oral dutasteride was the most effective therapy with a dose-dependent response for FFA in real clinical practice compared with other systemic therapies or no systemic treatment.

Background Folliculitis decalvans (FD) is a rare neutrophilic cicatricial alopecia that poses a therapeutic challenge. Objectives To describe the therapeutic response in a large number of cases of FD with long-term follow-up and analyze potential prognostic factors associated with severity of form and with a better therapeutic response. Methods This multicenter prospective study included patients with FD who had a minimum of 5 years of follow-up. Severity was assessed by the maximum diameter of the cicatricial area. Therapeutic response was evaluated according to stabilization of the size of the cicatricial areas and the improvement in clinical symptoms. Results A total of 60 patients (37 men [61.7%] and 23 women [38.3%]) with a mean age of 40 years were included. Earlier age of onset (P = .01) was statistically associated with severity of form. Treatment with rifampicin and clindamycin, tetracyclines, and intralesional steroids was the most effective. No statistically significant prognostic factors predicting a better therapeutic response were found. Limitations Because FD is a rare disease, the main limitation was the sample size. Conclusions An earlier age of onset was associated with the severe form of the disease. The proposed specific therapeutic protocol can be a very useful tool in clinical dermatologic practice.

Frontal fibrosing alopecia (FFA) is a scarring alopecia characterized by recession of the frontotemporal hairline and loss of the eyebrows.To design and validate a scoring system to assess the severity of FFA.The Frontal Fibrosing Alopecia Severity Score (FFASS) was developed; criterion validity was assessed by the Investigator's Global Assessment, and construct validity was evaluated by the convergence of other measures of severity (the Patient's Global Assessment], the rest of the clinical features, the Lichen Planopilaris Activity Index, and quality of life measures (Dermatology Life Quality Index and Hospital Anxiety Depression Scale). Intraobserver and interobserver reliability were determined.In total, 103 female patients were included. The FFASS showed significant correlation to the Patient's Global Assessment, occipital involvement, and the Lichen Planopilaris Activity Index. Intraobserver reliability was completed for 31 subjects and showed good correlation (intraclass correlation coefficient, 0.86; 95% confidence interval, 0.7-0.95; P .001). Interobserver reliability showed excellent correlation (intraclass correlation coefficient, 0.97; 95% confidence interval, 0.95-0.99; P .001).The study was performed at a single institution, and only female patients were assessed.The FFASS is a statistically validated scale and a reliable measure of FFA severity, and it can be used in clinical practice and future research studies as an assessment tool.

Background To our knowledge, there are no large multicenter studies concerning frontal fibrosing alopecia (FFA) that could give clues about its pathogenesis and best treatment. Objective We sought to describe the epidemiology, comorbidities, clinical presentation, diagnostic findings, and therapeutic choices in a large series of patients with FFA. Methods This retrospective multicenter study included patients given the diagnosis of FFA. Clinical severity was classified based on the recession of the frontotemporal hairline. Results In all, 355 patients (343 women [49 premenopausal] and 12 men) with a mean age of 61 years (range 23-86) were included. Early menopause was detected in 49 patients (14%), whereas 46 (13%) had undergone hysterectomy. Severe FFA was observed in 131 patients (37%). Independent factors associated with severe FFA after multivariate analysis were: eyelash loss, facial papules, and body hair involvement. Eyebrow loss as the initial clinical presentation was associated with mild forms. Antiandrogens such as finasteride and dutasteride were used in 111 patients (31%), with improvement in 52 (47%) and stabilization in 59 (53%). Limitations The retrospective design is a limitation. Conclusions Eyelash loss, facial papules, and body hair involvement were associated with severe FFA. Antiandrogens were the most useful treatment.