Hydroxychloroquine Efficacy in Chronic Urticaria
|ClinicalTrials.gov Identifier: NCT01073852|
Recruitment Status : Withdrawn (withdrawn, not funded)
First Posted : February 23, 2010
Last Update Posted : January 23, 2013
This study is for those people with difficult to treat hives. We are investigating whether or not a different medication, hydroxychloroquine, works to treat a certain type of hives. Hydrochloroquine is currently approved by the Food and Drug Administration (FDA), for treating arthritis, therefore it is considered investigational in this study.
Hypothesis: Hydroxychloroquine will prove to have an efficacious response in terms of Urticarial Symptoms, on patients with chronic urticaria.
|Condition or disease||Intervention/treatment||Phase|
|Chronic Urticaria||Drug: Placebo Drug: Hydroxychloroquine||Not Applicable|
Our research question is: Is hydroxychloroquine an efficacious medicine to use in patients with chronic urticaria? Answering this question should help allergists treat chronic urticaria with a more evidence based approach. To date there has one been one prospective trial evaluating hydroxychloroquine in hives, and although it showed a trend towards efficacy (0.05<p<0.10), it was not statistically significant. There have been case series, and anecdotal reports which seem to demonstrate efficacy of chloroquine in chronic urticaria. Because of these reports hydroxychloroquine is often the first medication used in patients with chronic hives that are refractory to standard therapy of antihistamines. We believe an evidence based answer to this question will be an important step towards improved treatment of this disease.
We plan to ascertain the efficacy of hydroxychloroquine by completing a randomized double blinded placebo controlled study of treatment in patients with chronic urticaria. We will be measuring an Urticarial Score to evaluate hive symptoms. We will be measuring them at baseline, and at the end of the study to note change in drug vs placebo.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||0 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Triple (Participant, Investigator, Outcomes Assessor)|
|Official Title:||Hydroxychloroquine Efficacy in Chronic Urticaria|
|Study Start Date :||June 2011|
|Actual Primary Completion Date :||June 2012|
|Actual Study Completion Date :||June 2012|
Placebo Comparator: Placebo
Patients will be taking placebo medication throughout study.
Placebo pill, 1 pill orally twice daily for 9 weeks.
Active Comparator: Hydroxychloroquine
Patients will be taking hydroxychloroquine throughout study.
Patients will be taking hydroxychloroquine 200mg orally twice/daily.
- Urticarial Symptom Score [ Time Frame: 10 weeks ]
- Difference in Basophil Activation [ Time Frame: 10 weeks ]
- Difference in Rescue Medication Usage [ Time Frame: 10 weeks ]
- Difference in Dermatology Life Quality Index [ Time Frame: 10 weeks ]
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01073852
|Principal Investigator:||Pogie Pongonis, MD||Vanderbilt University|
|Study Director:||John Fahrenholz, MD||Vanderbilt University|