Evaluation of the AudibleHealth Dx AI/ML-Based Dx SaMD Using FCV-SDS in the Diagnosis of COVID-19 Illness: Clinical Validation


AudibleHealth AI




Coronavirus Disease-19
SARS-CoV-2 Infection
Coronavirus Disease 2019
COVID-19 Virus Disease
2019-nCoV Disease
2019 Novel Coronavirus Disease
COVID-19 Virus Infection
2019 Novel Coronavirus Infection
COVID-19 Pandemic


Device: Diagnostic Test: Diagnostic Software as Medical Device

Study type


Funder types




Details and patient eligibility


The AudibleHealth Dx is a diagnostic software as a medical device (Dx SaMD) consisting of an ensemble of software subroutines that interacts with a proprietary database of Signal Data Signatures (SDS), using Artificial Intelligence/Machine Learning (AI/ML) to analyze forced cough vocalization signal data signatures (FCV-SDS) for diagnostic purposes. This study will evaluate the performance of the AudibleHealth Dx in comparison to a standard of care Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) test for the diagnosis of COVID-19. A secondary purpose of the study will be usability testing of the device for participants and providers.

Full description

The study is a prospective, multi-site, non-inferiority trial comparing the AudibleHealth Dx to FDA approved COVID-19 RT-PCR testing to demonstrate non-inferiority of the PPA and NPA when using this device to diagnose COVID-19 illness. The AudibleHealth Dx test and the "BioFire Respiratory 2.1 (RP2.1)" (brand name) test will be performed for each participant during a single encounter. Participants and staff will be blinded to AudibleHealth Dx results and the RT-PCR status at the time of testing. No one will know both results in real-time except for the Site Coordinators and unblinded statistician specifically authorized to have these results for enrollment, audit, data tracking, and data compiling purposes. • Unblinding of the results will occur after the AudibleHealth Dx, RT-PCR, and the second RT-PCR results (if necessary for discordance) have been obtained. Results for the RT-PCR test will be received by the participant according to the clinical site's protocol. Target enrollment for this trial will be 65 COVID-19 positive cases and 152 COVID-19 negative cases, presuming a prevalence of 0.30 for a total of 217 subjects meeting all inclusion criteria.


514 patients




18 to 100 years old


Accepts Healthy Volunteers

Inclusion criteria

* 18 years of age or older * Present for elective, outpatient COVID-19 RT-PCR testing * Meet the FDA EUA approved indications for use for RT-PCR nasal swab testing for COVID-19 * Stated willingness to comply with all trial procedures and availability for the duration of the trial * Informed consent must be obtained prior to testing * Ability to complete both the informed consent form and the screens on the medical device app in English (no translation to other languages is currently available)

Exclusion criteria

* Any individual who was a part of the AudibleHealth Dx Development, Training, and Usability trial (Training and test data sets are to be kept strictly separate.) * Less than 18 years of age * Unable to produce a voluntary forced cough vocalization (FCV) * Recent acute traumatic injury to the head, neck, throat, chest, abdomen or trunk * Patent tracheostomy stoma * Recent chest / abdomen / trunk trauma or surgery, recent / persistent neurovascular injury or recent intracranial surgery * Medical history of cribriform plate injury or cribriform plate surgery, diaphragmatic hernia, external beam neck / throat / maxillofacial radiation, phrenic nerve injury/palsy, radical neck / throat / maxillofacial surgery, vocal cord trauma or nodules * Since persons with aphasia may have difficulty in producing an FCV-SDS in the time allotted by the app, this population also will be excluded from the current trial

Trial design

514 participants in 1 patient group

Trial Population
The trial population will be enrolled from adults presenting for elective, outpatient COVID-19 testing at a single center, potentially with multiple testing locations (subject to local needs at the time of the trial). The investigational device will be provided to Participants via a cell phone preloaded with Common off-the-shelf original equipment manufacturer (COTS OEM) software and the investigational Dx SaMD. The investigational device will be evaluated during a single encounter in which an FCV-SDS will be collected. No follow-up visits or participant contacts will be involved in this trial.
Device: Diagnostic Test: Diagnostic Software as Medical Device

Trial contacts and locations



Data sourced from clinicaltrials.gov

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