Kanokvalai Kulthanan1, Pichanee Chaweekulrat1, Chulaluk Komoltri2, Saowalak Hunnangkul2, Papapit Tuchinda3, Leena Chularojanamontri1, Marcus Maurer4. 1. Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. 2. Office of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. 3. Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. Electronic address: papapitt@gmail.com. 4. Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin, Berlin, Germany.
Abstract
BACKGROUND: Despite widely recommended usage of cyclosporine A (CsA) in chronic spontaneous urticaria (CSU), there is no meta-analysis concerning its efficacy and safety. OBJECTIVE: To meta-analyze and review the efficacy and safety of CsA in CSU. METHODS: Efficacy was assessed by the relative change in urticaria activity score at 4 weeks and response rates at 4, 8, and 12 weeks. Safety was assessed by analyzing the number of patients with 1 or more adverse event. RESULTS: Eighteen studies (909 participants) including 2 randomized controlled trials were included, with 125, 363, and 266 patients with CSU receiving very low (<2 mg/kg/d), low (from 2 to< 4 mg/kg/d), and moderate (4-5 mg/kg/d) doses of CsA, respectively. After 4 weeks, the mean relative change in urticaria activity score of CsA-treated patients was -17.89, whereas that of controls was -2.3. The overall response rate to CsA treatment with low to moderate doses at 4, 8, and 12 weeks was 54%, 66%, and 73%, respectively. No studies of very low-dose CsA evaluated response rates at 4, 8, and 12 weeks. Among patients treated with very low, low, and moderate doses of CsA, 6%, 23%, and 57% experienced 1 or more adverse event, respectively. CONCLUSIONS: Given the limited number and quality of studies, our results should be interpreted with caution. CsA is effective at low to moderate doses. Adverse events appear to be dose dependent and occur in more than half the patients treated with moderate doses of CsA. We suggest that the appropriate dosage of CsA for CSU may range from 1 to 5 mg/kg/d, and 3 mg/kg/d is a reasonable starting dose for most patients.
BACKGROUND: Despite widely recommended usage of cyclosporine A (CsA) in chronic spontaneous urticaria (CSU), there is no meta-analysis concerning its efficacy and safety. OBJECTIVE: To meta-analyze and review the efficacy and safety of CsA in CSU. METHODS: Efficacy was assessed by the relative change in urticaria activity score at 4 weeks and response rates at 4, 8, and 12 weeks. Safety was assessed by analyzing the number of patients with 1 or more adverse event. RESULTS: Eighteen studies (909 participants) including 2 randomized controlled trials were included, with 125, 363, and 266 patients with CSU receiving very low (<2 mg/kg/d), low (from 2 to< 4 mg/kg/d), and moderate (4-5 mg/kg/d) doses of CsA, respectively. After 4 weeks, the mean relative change in urticaria activity score of CsA-treated patients was -17.89, whereas that of controls was -2.3. The overall response rate to CsA treatment with low to moderate doses at 4, 8, and 12 weeks was 54%, 66%, and 73%, respectively. No studies of very low-dose CsA evaluated response rates at 4, 8, and 12 weeks. Among patients treated with very low, low, and moderate doses of CsA, 6%, 23%, and 57% experienced 1 or more adverse event, respectively. CONCLUSIONS: Given the limited number and quality of studies, our results should be interpreted with caution. CsA is effective at low to moderate doses. Adverse events appear to be dose dependent and occur in more than half the patients treated with moderate doses of CsA. We suggest that the appropriate dosage of CsA for CSU may range from 1 to 5 mg/kg/d, and 3 mg/kg/d is a reasonable starting dose for most patients.
Authors: Pavel Kolkhir; Ana M Giménez-Arnau; Kanokvalai Kulthanan; Jonny Peter; Martin Metz; Marcus Maurer Journal: Nat Rev Dis Primers Date: 2022-09-15 Impact factor: 65.038
Authors: Mario Sánchez-Borges; Ignacio J Ansotegui; Ilaria Baiardini; Jonathan Bernstein; Giorgio Walter Canonica; Motohiro Ebisawa; R Maximiliano Gomez; Sandra González-Diaz; Bryan Martin; Mário Morais de Almeida; Jose Antonio Ortega Martell Journal: World Allergy Organ J Date: 2021-06-03 Impact factor: 4.084