PMID- 35869554 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220729 IS - 1749-8546 (Print) IS - 1749-8546 (Electronic) IS - 1749-8546 (Linking) VI - 17 IP - 1 DP - 2022 Jul 22 TI - Efficacy and safety of modified Xiao-Feng Powder in the treatment of chronic urticaria: protocol of a randomized double-blind placebo-controlled study. PG - 87 LID - 10.1186/s13020-022-00642-3 [doi] LID - 87 AB - BACKGROUND: Chronic Urticaria (CU), a common skin disorder known as Yin Zhen in Chinese medicine, is characterized by recurrent, pruritic, pink-to-red edematous lesions and wheals on the skin. Xiao-Feng Powder (XFP, meaning Wind-Dispersing Powder), is reported to be one of the most frequently used Chinese herbal formulae for CU. In this study, we aim to investigate the effectiveness and safety of modified Xiao-Feng Powder (mXFP) for the treatment of CU. METHODS: In this randomised double-blind placebo-controlled clinical trial, 58 subjects identified as having mild to severe urticaria (Urticaria activity score greater than 10) will be recruited and randomised into two groups to receive antihistamine Bilastine with either mXFP or placebo for 12 weeks, followed by post treatment visits at week 16. The primary outcome measure is the change of weekly urticaria activity score (UAS7) at week 12. Secondary outcome measures include the Urticaria Control Test (UCT), Visual Analog Scale of Itch Severity (VAS), Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL), Angioedema Activity Score (AAS), immunoglobulin E (IgE) test, gut microbiota test and use of antihistamines during study period. The trial will be conducted at three Chinese medicine clinics in Hong Kong. EXPECTED OUTCOMES: The results of this study will establish robust clinical evidence about the efficacy and safety of mXFP in the treatment of CU. A specific feature of this trial is that it is a integrative medicine trial with subjects being allowed to take the Western and Chinese medicine together for the treatment. Trial registration This is registered on ClinicalTrials.gov, ID: NCT04967092. Register date: July 19, 2021. https://clinicaltrials.gov/ct2/show/NCT04967092 . CI - (c) 2022. The Author(s). FAU - Hung, Hing Yu AU - Hung HY AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. AD - School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Song, Tianhe AU - Song T AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. thsongm@gmail.com. FAU - Loo, Steven King Fan AU - Loo SKF AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Chan, Kam Leung AU - Chan KL AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. AD - School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Ching, Jessica Yuet Ling AU - Ching JYL AD - Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Sum, Chi Him AU - Sum CH AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Lo, Louis Cho Wing AU - Lo LCW AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Chia, Sarah Chon Pin AU - Chia SCP AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Ho, Ray Tin Muk AU - Ho RTM AD - School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Cheong, Pui Kuan AU - Cheong PK AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Siu, Tony Hon Chung AU - Siu THC AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Leung, Ka Chun AU - Leung KC AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. FAU - Lin, Zhi-Xiu AU - Lin ZX AD - Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. linzx@cuhk.edu.hk. AD - School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China. linzx@cuhk.edu.hk. LA - eng SI - ClinicalTrials.gov/NCT04967092 PT - Journal Article DEP - 20220722 PL - England TA - Chin Med JT - Chinese medicine JID - 101265109 PMC - PMC9308295 OTO - NOTNLM OT - Chinese medicine OT - Urticaria OT - Xiao-Feng Powder COIS- None of the authors have any competing interests to declare. EDAT- 2022/07/23 06:00 MHDA- 2022/07/23 06:01 PMCR- 2022/07/22 CRDT- 2022/07/22 23:48 PHST- 2022/04/07 00:00 [received] PHST- 2022/07/09 00:00 [accepted] PHST- 2022/07/22 23:48 [entrez] PHST- 2022/07/23 06:00 [pubmed] PHST- 2022/07/23 06:01 [medline] PHST- 2022/07/22 00:00 [pmc-release] AID - 10.1186/s13020-022-00642-3 [pii] AID - 642 [pii] AID - 10.1186/s13020-022-00642-3 [doi] PST - epublish SO - Chin Med. 2022 Jul 22;17(1):87. doi: 10.1186/s13020-022-00642-3.