Sweat Evaporimeter Measurement
The investigators hypothesize that measurement of beta adrenergic induced sweat rate using an evaporimeter can accurately and reliably determine different levels of CFTR dysfunction within a spectrum of patients expressing various degrees of cystic fibrosis disease.
The investigators overall goal is to determine whether the evaporimeter technique of measuring beta-adrenergic induced sweat rate is capable of accurately and reliably identifying different levels of CFTR dysfunction, as a prerequisite before advancing this technique as biomarker assay into clinical trials.
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||Evaluation of the Accuracy and Reliability of B-Adrenergic Sweat Secretion Using an Evaporimeter to Assess CFTR Function in Cystic Fibrosis|
- Measurement of beta-adrenergic induced sweat rate using an evaporimeter can accurately and reliably determine different levels of CFTR dysfunction within a spectrum of patients expressing various degrees of CF disease. [ Time Frame: Up to 2 hours ]The response patterns will be interpreted and classified by the study PI, as consistent or inconsistent to the published standards. The obtained measurements will be compared to the results obtained from a recently finished validation trial. According to the result of this trial the ranges were as followed: cholinergic response for all subjects 60±20 Evaporimeter units, beta-adrenergic response: Healthy control 51 ± 20 heterozygote -22 ±20, CF -1.4 ±2.
|Study Start Date:||December 2011|
|Study Completion Date:||December 2014|
|Primary Completion Date:||August 2014 (Final data collection date for primary outcome measure)|
Sweat Evaporimeter measurement
Other: Sweat Evaporimeter measurement
The procedure would take about 45 minutes.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01708655
|United States, Colorado|
|Children's Hospital Colorado|
|Aurora, Colorado, United States, 80045|
|Principal Investigator:||Frank J Accurso, MD||Children's Hospital Colorado|