Pilot Study for the Application of Low Power External Bioelectronic Devices in the Diagnosis of Bronchial Asthma.

Condition(s) studied

Investigational drug(s) / intervention(s)

Spirometry test with bronchodilation: this test measures how much air you can breathe in and out of your lungs, as well as how easily and fast you can then blow the air out of your lungs

Methacholine challenge: test used to diagnose asthma where the patient breaths in methacholine

impulse oscillometry: test that uses sound waves to measure how much resistance there is to the normal movement of air in and out of your lungs when you are breathing at rest

Measurement of the exhaled FeNO fraction: Measure the level of nitric oxide in parts per billion (PPB) in the air the patient slowly exhales

Study summary

The objective of this study is to detect the acoustic signals generated by the respiratory system on asthma patients using an acoustic sensor and retrospectively use these signals to identify the characteristics that differentiate patients with asthma and healthy subjects.

Eligibility

Primary outcome measure(s)

• Acoustic respiratory signals — During the diagnostic tests performed and during the night studies performed by the participant for at least two weeks
  Acoustic signals during the tests performed for asthma diagnosis and while the subjects sleep for at least two weeks.

Trial sites (1)