Matthew A. Rank, M.D.

The purpose of this study is to build a Mayo Clinic registry of data and biobank from subjects with drug allergy. The data collected will include demographic, diagnostic, and health data on a large group of patients to discover novel drug allergy diagnostic methods.

The purpose of this study is to compare lateral flow assay eosinophil peroxidase (LFA-EPX) with ELISA-EPX

The purpose of this study is to build a Mayo Clinic registry of data and biobank from subjects with drug allergy. The data collected will include demographic, diagnostic, and health data on a large group of patients to discover novel drug allergy diagnostic methods.

The purpose of this study is to demonstrate the ability to measure Treg cells in inflamed sinonasal tissue and correlate these findings with other local inflammatory markers.

The purpose of this study is for patients who have decreased their chronic asthma medications to collect periodic home nasal swabs that measure levels of airway inflammation and may predict their asthma stability.

The purpose of this study is to use pharmacy data to identify patient use patterns of prescribed topical medications for chronic rhinosinusitis, and then survey the patients who are not complying for the difficulties they feel prevent use. 

The purpose of this study is to provide a mechanism for expanded access to mepolizumab therapy for eligible patients with Hypereosinophilic Syndrome (HES).

The purpose of this study is to evaluate several interventions given to participants with severe asthma. Interventions are administered in a crossover manner with 16-week treatment periods followed by 8 to 16 week washout.