Clindamycinside effects

Observed local adverse reactions in patients treated with ZIANA Gel were skin erythema, scaling, itching, burning, and stinging. Other most commonly reported adverse events (≥1% in patients treated with ZIANA Gel) were nasopharyngitis, pharyngolaryngeal pain, dry skin, cough, and sinusitis. To report SUSPECTED ADVERSE REACTIONS, contact Bausch Health US, LLC at 1-800-321-4576 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch

6.1 Clinical

Studies Experience Because clinical trials are conducted under prescribed conditions, adverse reaction rates observed in the clinical trial may not reflect the rates observed in practice. The adverse reaction information from clinical trials does, however, provide a basis for identifying the adverse reactions that appear to be related to drug use for approximating rates. The safety data presented in Table 1 (below) reflects exposure to ZIANA Gel in 1853 patients with acne vulgaris. Patients were 12 years and older and were treated once daily for 12 weeks. Adverse reactions that were reported in ≥1% of patients treated with ZIANA Gel were compared to adverse reactions in patients treated with clindamycin phosphate 1.2% in vehicle gel, tretinoin 0.025% in vehicle gel, and the vehicle gel alone: Table 1: Adverse Reactions Reported in at Least 1% of Patients Treated with ZIANA Gel: 12-Week Studies ZIANA Gel N=1853 N (%) Clindamycin N=1428 N (%) Tretinoin N=846 N (%) Vehicle N=423 N (%) PATIENTS WITH AT LEAST ONE AR 497 342 225 91 Nasopharyngitis 65 64 16 5 Pharyngolaryngeal pain 29 18 5 7 Dry skin 23 7 3 (<1) 0 Cough 19 21 9 2 Sinusitis 19 19 15 4 NOTE: Formulations used in all treatment arms were in the ZIANA vehicle gel. Cutaneous safety and tolerance evaluations were conducted at each study visit in all of the clinical trials by assessment of erythema, scaling, itching, burning, and stinging: Table 2: ZIANA Gel-Treated Patients with Local Skin Reactions Local Reaction Baseline N=1835 N (%) End of Treatment N=1614 N (%) Erythema 636 416 Scaling 237 280 Itching 189 70 Burning 38 56 Stinging 33 27 At each study visit, application site reactions on a scale of 0 (none), 1 (mild), 2 (moderate), and 3 (severe), and the mean scores were calculated for each of the local skin reactions. In Studies 1 and 2, 1277 subjects enrolled with moderate to severe acne, 854 subjects treated with ZIANA Gel and 423 treated with vehicle. Analysis over the 12-week period demonstrated that cutaneous irritation scores for erythema, scaling, itching, burning, and stinging peaked at 2 weeks of therapy, and were slightly higher for the ZIANA-treated group, decreasing thereafter. One open-label 12-month safety study for ZIANA Gel showed a similar adverse reaction profile as seen in the 12-week studies. Eighteen out of 442 subjects (4%) reported gastrointestinal symptoms.