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

NCT ID: NCT06836375

Last Updated: 2025-08-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-09-27

Study Completion Date

2027-02-27

Brief Summary

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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.

Detailed Description

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The objective of this project is to detect acoustic signals generated by the respiratory system in patients with asthma using the acoustic sensor; and then, retrospectively, to use these signals to carry out signal processing research, with the aim of trying to identify signal characteristics that can be used to differentiate asthma patients from people who do not have the disease.

The hypothesis, therefore, is that it is possible to target through external smart bioelectronic devices and wireless connectivity (wearables) the initial signals of the pathophysiology of bronchial asthma and differentiate them from the signals of the normal respiratory physiology of a healthy individual.

Similarly, detection of such signals would not only be useful for asthma diagnosis but also for monitoring and early detection of exacerbations before they can be detected by the usual respiratory functional tests.

The patients will first visit the asthma unit where the diagnostic tests will be undertaken. Then the subjects will take the acoustic sensor home with them and wear it during sleep for at least two weeks.

Conditions

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Asthma Bronchiale

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients with Bronchial asthma

Patients with a diagnosis of bronchial asthma, under follow-up by the Asthma Unit.

Spirometry test with bronchodilation

Intervention Type DIAGNOSTIC_TEST

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

Intervention Type DIAGNOSTIC_TEST

test used to diagnose asthma where the patient breaths in methacholine

impulse oscillometry

Intervention Type DIAGNOSTIC_TEST

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

Intervention Type OTHER

Measure the level of nitric oxide in parts per billion (PPB) in the air the patient slowly exhales

Patients referred for consultation

Patients referred for consultation due to clinical suspicion of bronchial asthma.

Spirometry test with bronchodilation

Intervention Type DIAGNOSTIC_TEST

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

Intervention Type DIAGNOSTIC_TEST

test used to diagnose asthma where the patient breaths in methacholine

impulse oscillometry

Intervention Type DIAGNOSTIC_TEST

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

Intervention Type OTHER

Measure the level of nitric oxide in parts per billion (PPB) in the air the patient slowly exhales

Interventions

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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

Intervention Type DIAGNOSTIC_TEST

Methacholine challenge

test used to diagnose asthma where the patient breaths in methacholine

Intervention Type DIAGNOSTIC_TEST

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

Intervention Type DIAGNOSTIC_TEST

Measurement of the exhaled FeNO fraction

Measure the level of nitric oxide in parts per billion (PPB) in the air the patient slowly exhales

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Male or female, aged \>= 18 and \< 65.
* Ability to access applications on mobile device, technical understanding and minimal technological skills
* Subject has provided informed consent and is willing to comply with the study procedures.

* Subject has a known allergy to medical adhesives

Exclusion Criteria

* Subject does not consent to the study
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Acurable Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Hospital Virgen del Rocio

Seville, , Spain

Site Status

Countries

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Spain

Central Contacts

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Orsina Dessi

Role: CONTACT

+44 7721877020

Facility Contacts

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Mireia Munoz Rojo

Role: primary

+44 0208 1917590

Other Identifiers

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1914-N-22

Identifier Type: -

Identifier Source: org_study_id

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