Chronic urticaria
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged from 6 to 80 years; 2. Patients diagnosed with chronic urticaria (duration greater than or equal to 6 weeks); 3. Therapeutic effect was not obvious; 4. The blood parameters were normal and suitable for the patients taking clarithromycin; 5. Volunteer to participate in the program and be able to perform as required; 6. The informed consent has been signed and can be completed as required.
Exclusion criteria
Exclusion criteria: 1. The CU patients with other immune diseases; 2. Patients with definite indications of h. pylori infection and other microbial disturbances; 3. Patients with history of chronic bacterial or fungal infections; 4. Patients have been diagnosed with physical urticaria (including artificial urticaria), cholinergic urticaria or urticaria vasculitis; 5. Patients are unable to cooperate or adhere to treatment and have poor predictive compliance; 6. Pregnant and nursing women; 7. The patients are also participating in other clinical trials.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| effective rate;inhibition ratio; | — |
Countries
China
Contacts
Xi'an Jiaotong University