NCT01929824

Nasal Nitric Oxide Levels in Eosinophilic Esophagitis (EoE)

A Pilot Study: Nasal Nitric Oxide Levels in Eosinophilic Esophagitis.

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 50 (actual)
• Sponsor: Mayo Clinic · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This study is aimed at understanding whether oral nitric oxide levels can be used as a non-invasive marker for the diagnosis and management of patient with eosinophilic esophagitis (EoE).

Detailed description

Nitric oxide (NO) is produced by activated eosinophils and oral NO levels are known to be elevated in asthma and eosinophilic bronchitis. The measurement of oral NO is a non-invasive,easy to perform low cost procedure that is used frequently in the diagnosis and management of asthma. The diagnosis of eosinophilic esophagitis (EoE) requires conscious sedation, an upper endoscopy with biopsy, and histologic evaluation of the biopsy specimen. This is a costly and somewhat invasive procedure. If oral NO was elevated as a result of activity of esophageal eosinophils in EoE, the measurement of oral NO may potentially be a very convenient and useful test in the evaluation and treatment of EoE. We propose a pilot study to determine if oral NO levels are elevated in patients with eosinophilic esophagitis.

Conditions

• Eosinophilic Esophagitis

Interventions

Type	Name	Description
OTHER	Oral Nitric Oxide testing	o Oral nitric oxide is measured by a breathing test where the participant will be seated in a chair and asked to breathe out into a small hand-held instrument for about 6 seconds.

Timeline

• Start date: 2013-08-01
• Primary completion: 2017-09-25
• Completion: 2019-09-25
• First posted: 2013-08-28
• Last updated: 2019-09-30

Locations

1 site across 1 country: United States