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Completed No phase listed Observational Accepts healthy volunteers

Improving Real-time COVID-19 Monitoring Through Smartphone Voice Analysis

ClinicalTrials.gov ID: NCT04582331

Public ClinicalTrials.gov record NCT04582331. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 3:53 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a confirmatory study that seeks to examine whether respiratory-responsive vocal biomarkers have potential to respond to COVID-19 infection status and respiratory symptom severity. Patients with suspected COVID-19 and healthy controls will submit daily voice samples and symptom inventories on their personal smartphone devices for 14 days.

Study identification

NCT ID
NCT04582331
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Lead sponsor
Sonde Health
Industry
Enrollment
500 participants

Conditions and interventions

Eligibility (public fields only)

Age range
12 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 9, 2020
Primary completion
May 11, 2021
Completion
May 11, 2021
Last update posted
May 13, 2021

2020 – 2021

United States locations

U.S. sites
3
U.S. states
3
U.S. cities
3
Facility City State ZIP Site status
UC San Diego Medical Center San Diego California 92103
Brigham & Woman's Hospital Boston Massachusetts 02115
Montefiore Medical Center New York New York 10467

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.

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Other public records listing Covid19. Sorted by last update posted; newest first. Not a recommendation.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04582331, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 13, 2021 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04582331 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →