Diagnosis of Aspirin Hypersensitivity in Aspirin Exacerbated Respiratory Disease — ASAS  

Asthma, Aspirin-induced Clinical Trial

Official title: Diagnosis of Aspirin Hypersensitivity in Aspirin Exacerbated Respiratory Disease Using a Safe, Low Dose Aspirin Challenge

Status Terminated

Clinical Trial Summary

To diagnose aspirin hypersensitivity in asthmatics by using and safe, low-dose aspirin oral challenge. Hypothesis 1: A low dose of oral ASA (20 or 40 mg) will induce significantly different concentrations of arachidonic acid metabolites in ASA-sensitive asthmatics as compared to ASA-tolerant asthmatics. Hypothesis 2: The low dose (20 or 40 mg) ASA challenge will be well tolerated by ASA-sensitive asthmatics.

Clinical Trial Description

This research study is being conducted within the established Airway Research Group at Montefiore Medical Center and Albert Einstein College of Medicine in Bronx, NY. The patient population in the Bronx has one of the highest asthma prevalences in the country. Thus, our study participants are being recruited among the population most in need of a better understanding of the disease process. Visits 1 and 2: Low-dose challenge with 20 mg and 40 mg of ASA. ASA will be administered orally to participants in both groups: 20 mg at Visit 1 and 40 mg at Visit 2. Visits will take place at least 1 week apart. Blood and urine will be collected at several time points. Visit 3: Oral graded ASA challenge will be performed to confirm or rule out the presence of ASA-hypersensitivity. This visit will take place at least 1 week after Visit 2. Both groups will undergo an oral graded ASA challenge as per earlier described protocol. Urine and plasma will be collected from the patients at several time points. Hypersensitivity reactions will be defined in four different ways: a) decline in forced expiratory volume in 1 second (FEV1) of at least 15% combined and naso-ocular reaction; b) 20% decline in FEV1; c) isolated naso-ocular reactions; d) isolated cutaneous reactions (hives and swelling). Patients with reactions will be treated according to their symptoms. ;

Related Conditions & MeSH terms

• Asthma, Aspirin-induced
• Hypersensitivity
• Respiration Disorders
• Respiratory Tract Diseases

• NCT number: NCT01320072
• Study type: Observational
• Source: Montefiore Medical Center
• Status: Terminated
• Start date: May 2010
• Completion date: May 26, 2022