Study of the Effects of Chinese Herbal Medicine on Chronic Urticaria
Urticaria is a common dermatology disease. Urticaria affects nearly 25% of the population at some time in their lives. Recurrent skin itch, insomnia, daily activities limitation greatly affect the quality of life. Some patient with chronic urticaria who had poor response to antihistamine may need second line medication. In United States, up to 54% chronic urticarial patient use oral corticosteroid to control. However, long-term use of oral steroids still needs to consider the impact of its side effects. Therefore, patients may seek for alternative medicine as an adjuvant therapy.
It is still lack large-scale clinical trials in Traditional Chinese Medicine research of chronic urticarial. The aim of this study is to conduct a double-blind, randomized clinical trial to analyze the effectiveness of Chinese medicine in chronic urticaria and its possible mechanisms.
Drug: Chinese Herbal Medicine (CHM)
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
|Official Title:||Study of the Effects of Antipruritic Chinese Herbal Medicine on Chronic Urticaria: a Randomized, Double-blind, Placebo-controlled, Phase III Clinical Trial.|
- Changes in symptom severity [ Time Frame: Assessment of symptom severity on starting day (day 0), day 7, day 28, day 35 and day 56 for UAS7, and the DLQI on starting day (day 0), day 28 and day 56 ]Weekly urticaria activity score (UAS7) on day 0, day 7, day 28, day 35 and day 56, and the Dermatology Life Quality Index (DLQI) on day 0, day 28, and day 56
- Improvement of sleep disturbance [ Time Frame: Assessment of insomnia (common complications with urticaria) on starting day (day 0),day 28 and day 56 ]Athens Insomnia Scale, Chinese edition (CAIS-8) is used to evaluate the improvement of sleep disturbance among chronic urticaria patient on day 0, day 28 and day 56
- Changes of serologic markers for urticaria [ Time Frame: Assessment of changes on serum markers for urticaria on starting day (day 0), day 28 and day 56 ]Serum urticaria-related markers are checked on day 0, day 28 and day 56, including IgE, Eosinophil counts, CRP, IL-4, IL-6, IL-8, IL-10, IL-13, TNF-alpha and IFN-gamma
|Study Start Date:||November 2012|
|Study Completion Date:||November 2015|
|Primary Completion Date:||August 2015 (Final data collection date for primary outcome measure)|
Experimental: Chinese herbal medicine (CHM)
Subject in CHM group will receive CHM capsules, 8 capsules (4 gm) four times a day, total 16 gm a day, combined with levocetiricine 1PC once a day for 1 month.
Drug: Chinese Herbal Medicine (CHM)
Each CHM capsule, weighing 500mg, consists of XFS 250 mg and QSFFT 250 mg.
Placebo Comparator: Control
Subjects in control group will receive the placebo capsules, which has the similar look, smell and taste. The dosage, frequency and duration are the same as CHM group, in which 8 placebo capsule (4gm) 4 times a day, total 16 gm a day, combined with levocetiricine 1PC once a day, for 1 month.
Encapsulated powder with similar taste, color, odor to intervention Chinese herbal medicine
Traditional Chinese medicine has been used widely in Taiwan for several diseases, such as allergic rhinitis, atopic dermatitis. For urticaria,certain antipruritic Chinese herbal medicine, such and Xiao-feng-san (XFS), Qing-shang-fang-fen-tang (QSFFT), have been commonly used in clinical practice, yet no clinical trials have been done to prove the effectiveness.
In this study, a double-blinded, randomized, placebo control trial is designed and total 100 chronic urticaria patients will be enrolled. All subjects will be divided into Chinese herbal medicine (CHM) and placebo control groups, in 1:1 allocation ratio. CHM group will receive capsule of mixture of XFS and QSFFT, 4gm four times a day, total 16 gm in a single day; while control group will receive placebo capsule with similar look, smell, and taste with same scheme. Total 1 month treatment course with 1 month follow-up study course will be done. Changes in symptom severity is the primary outcome, while improvement in sleep disturbance, and serologic marker evolution are the secondary outcome.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01715740
|Chang Gung Memorial Hospital|
|Principal Investigator:||Sien-hung Yang, Ph.D.||Chang Gung Memorial Hospital|