Efficacy and Safety of Chemoattractant Receptor-homologous Molecule Expressed on T Helper Type 2 (CRTh2) Antagonist AZD1981 in Chronic Idiopathic Urticaria (CIU) Antihistamines

Completed · Phase 2 · Has a placebo group

Conditions studied: Chronic Idiopathic Urticaria

In brief

The investigators are recruiting for a chronic hives study. This research is being done to test whether an investigational drug called AstraZeneca drug (AZD)1981 may be helpful for treating people with Chronic Idiopathic Urticaria who continue to have symptoms despite taking antihistamines. The word "investigational" means that AZD1981 is not approved for marketing by the Food and Drug Administration (FDA). The FDA is allowing the use of AZD1981 in this study. People with chronic hives lasting for at least 6 months and without a known cause may join. The study involves 6 visits over 8 weeks. Approximately 48 participants expected to take part in this study at the Johns Hopkins Asthma and Allergy Clinic. All participants will be treated with the study medication and/or placebo for 8 weeks. The results of this trial may have a benefit others with Chronic Idiopathic Urticaria who don't respond well to antihistamines by generating experience and data to support the design of a larger, multicenter trial investigating the efficacy of AZD1981 in treating antihistamine refractory CIU.

Key facts

Study ID

NCT02031679

Run by

Johns Hopkins University

People needed

38

Starts

2014-01-01

Expected to finish

2016-01-01

Last updated by the study team

2017-07-12

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Females must be surgically sterile or postmenopausal or using a highly effective form of birth control throughout the duration of the study
• Females must have a negative urine pregnancy test at screening
• Must meet the criteria for Chronic Idiopathic Urticaria (CIU) as defined by itching and hives for >3 days per week for over 6 weeks with no clear cause
• CIU symptoms must have started at least 6 months prior to starting the study
• Must have moderate to severe CIU, using a standardized survey, despite taking antihistamines

You may not qualify if…

• Pregnant females or females who plan to become pregnant during the study
• Drug or alcohol abuse within the past 3 years
• Use of any investigational drug with 30 days of the start of the study
• Eczema or other skin conditions associated with itching (besides hives)
• Inability to comply with follow-up procedures
• Use of the following therapies in the past 30 days: hydroxychloroquine, sulfasalazine, dapsone, methotrexate, cyclophosphamide, Intravenous Immunoglobulin (IVIG), plasmapheresis, cyclosporine, oral or systemic steroids, or other monoclonal antibody therapies
• Use of doxepin within the past 2 weeks
• Use of either H2 antihistamines and leukotriene receptor antagonists within 7 days before starting the study (unless already on these medications for Gastroesophageal Reflux Disease (GERD), asthma or allergic rhinitis)
• Inability to take diphenhydramine (Benadryl)
• Past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks or interfere with ability to comply with study procedures.

Where it is running

• Johns Hopkins Asthma and Allergy Center — Baltimore, Maryland, United States

Full record on ClinicalTrials.gov

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