Once-Daily Oral Sarecycline 1.5 mg/kg/day Is Effective for Moderate to Severe Acne Vulgaris: Results from Two Identically Designed, Phase 3, Randomized, Double-Blind Clinical Trials.

BACKGROUND: Side effects may limit the use of current tetracycline-class antibiotics for acne. OBJECTIVE: Evaluate the efficacy and safety of once-daily sarecycline, a novel, narrow-spectrum tetracycline-class antibiotic, in moderate to severe acne. METHODS: Patients 9-45 years with moderate to severe facial acne (Investigator's Global Assessment [IGA] score ≥ 3, 20-50 inflammatory and ≤ 100 noninflammatory lesions, and ≤ 2 nodules) were randomized 1:1 to sarecycline 1.5 mg/kg/day or placebo for 12 weeks in identically designed phase 3 studies (SC1401 and SC1402). RESULTS: In SC1401 (sarecycline n=483, placebo n=485) and SC1402 (sarecycline n=519, placebo n=515), at week 12, IGA success (≥ 2-grade improvement and score 0 [clear] or 1 [almost clear]) rates were 21.9% and 22.6% (sarecycline), respectively, versus 10.5% and 15.3% (placebo; P less than 0.0001 and P equals 0.0038). Onset of efficacy in inflammatory lesions occurred by the first visit (week 3), with mean percentage reduction in inflammatory lesions at week 12 in SC1401 and SC1402 of -51.8% and -49.9% (sarecycline), respectively, versus -35.1% and -35.4% (placebo; P less than 0.0001). Onset of efficacy for absolute reduction of noninflammatory lesion count occurred at week 6 in SC1401 (P less than 0.05) and week 9 in SC1402 (P less than 0.01). In SC1401, the most common TEAEs (in ≥ 2% of either sarecycline or placebo group) were nausea (4.6% [sarecycline]; 2.5% [placebo]), nasopharyngitis (3.1%; 1.7%), headache (2.7%; 2.7%), and vomiting (2.1%; 1.4%) and, in SC1402, nasopharyngitis (2.5%; 2.9%) and headache (2.9%; 4.9%). Most were not considered treatment-related. Vestibular (dizziness, tinnitus, vertigo) and phototoxic (sunburn, photosensitivity) TEAEs both occurred in ≤ 1% of sarecycline patients. Gastrointestinal TEAE rates for sarecycline were low. Among females, vulvovaginal candidiasis (SC1401: 1.1% [sarecycline] and 0 [placebo]; SC1402: 0.3% and 0) and mycotic infection (0.7% and 0; 1.0% and 0) rates were low. CONCLUSION: The narrow-spectrum antibiotic sarecycline was safe, well tolerated, and effective for moderate to severe acne, with low rates of side effects common with tetracycline antibiotics. J Drugs Dermatol. 2018;17(9):987-996.

Safety and tolerability of onabotulinumtoxinA in the treatment of facial lines: a meta-analysis of individual patient data from global clinical registration studies in 1678 participants.

BACKGROUND: OnabotulinumtoxinA for the treatment of facial lines is a widely used cosmetic medical procedure and, as such, the safety and tolerability profile is of interest to health care providers and patients. Based on data from individual studies that were conducted according to regulatory guidelines to provide adequate safety and efficacy data to support product licensure (registration studies), the overall benefit:risk profile of onabotulinumtoxinA for facial lines has been favorable. OBJECTIVE: Our objective was to increase statistical power through meta-analysis to detect treatment group differences in adverse event (AE) incidence that may not have been evident in individual registration studies. METHODS: Individual participant data (n = 1678) were from 6 randomized, double-blind, placebo-controlled and 3 open-label studies. Two double-blind, placebo-controlled studies were for lateral canthal lines (3-18 U/side) and all others were for glabellar lines (10 or 20 U). Doses used reflect global product labeling in countries where licensed. RESULTS: Participant population was non-Hispanic white (43%) or Asian (52%) and predominantly female (88%). In double-blind, placebo-controlled studies, overall AE incidence did not significantly differ by treatment group (onabotulinumtoxinA vs placebo). The only individual AEs with significantly greater incidence in the onabotulinumtoxinA group were eyelid sensory disorder (2.5% vs 0.3%, P = .004; verbatim phrases "tight," "pressured," "heavy," "drooping feeling," "feeling of droopiness") and eyelid ptosis (1.8% vs 0%, P = .02), both present only in glabellar studies. Overall treatment-related (per investigator) AE incidence was greater in the onabotulinumtoxinA group versus placebo (24% vs 16%, P = .005), and treatment-related eyelid edema was an additional AE with significantly higher incidence in the onabotulinumtoxinA group versus placebo (P = .04). Incidence of all 3 of these AEs significantly decreased as number of treatment cycles increased. Eyelid sensory disorder and eyelid edema were more common in Asian participants. Acne, injection site pruritus, oral herpes, rash, lower respiratory tract infection, dental caries, and eye pain were significantly more common in placebo-treated compared with onabotulinumtoxinA-treated participants. Serious AE incidence did not significantly differ by treatment (onabotulinumtoxinA vs placebo) and no serious AEs were treatment related. There were no symptoms of weakness remote to the injection site or related to the central nervous system. LIMITATIONS: Limitations included: (1) highly visible efficacy of onabotulinumtoxinA may have resulted in reporting bias; (2) reliance on participant intervisit recall; (3) a relatively short follow-up period (1 year); (4) conclusions are based solely on the doses analyzed (ie, those used in the respective trials); and (5) exclusion of patients with severe medical disease in registration studies. CONCLUSION: This meta-analysis confirms the safety and tolerability of onabotulinumtoxinA for glabellar and lateral canthal lines, at the doses studied, based on the most comprehensive controlled safety analysis of onabotulinumtoxinA performed to date. The AEs observed were generally mild to moderate; most treatment-related AEs were related either to physical injection of product or local pharmacologic effects. Even with the increased statistical power of a large sample size, no new onabotulinumtoxinA-associated AEs emerged.