Clinical trial Recruiting at 1 site Observational Ages 22 and up

Voice-based detection of heart failure deterioration using Noah Labs Vox

Official title: Voice-based Outcome Identification and Clinical Evaluation in Heart Failure

Run by Noah Labs · NCT07870395 · Data updated 2026-11-12

This study tests whether a voice-analysis app can flag worsening heart failure in adults by comparing its alerts to standard weight-based monitoring.

Quick facts

Study typeObservational
Ages22 Years and up
SexAll
Enrollment450 (estimated)
SponsorNoah Labs
Industry-sponsored
Locations1 site (Boston, Massachusetts)
StatusRecruiting
StartedOctober 15, 2026
Main results expectedDecember 2027
Study endsDecember 2027
Registry record updatedOctober 27, 2026
Trial IDNCT07870395 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 22 and older with a diagnosis of Stage C heart failure, including a recent DHF event within the prior 180 days.

Probably not a fit

Patients without worsening HF signals detectable by voice patterns or who have reliable alternative monitoring without voice data may see no benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

VOICE-HF is a prospective, multicenter, single-arm observational study that evaluates the Noah Labs Vox algorithm using an independent dataset. Participants will provide daily smartphone voice recordings for 180 days to see if the software can identify signs of worsening heart failure before a decompensation event. The study compares the voice-based approach to conventional remote monitoring rules to understand relative performance, safety, and potential clinical usefulness. An adjudicated clinical events committee will determine DHF events to contextualize the algorithm’s signals. Approximately 450 adults with Stage C heart failure of any etiology and a full range of LVEF will be enrolled at Brigham and Women's Hospital and monitored remotely.

Why it matters

Potential benefit: If successful, the voice-based tool could enable earlier detection of DHF and timely intervention to prevent hospitalizations.

How similar studies have gone: Previous work in digital health supports the concept that voice signals can reflect cardiopulmonary status, but this exact approach is being evaluated in this trial.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥22
* HF diagnosis (Stage C)
* DHF event within prior 180 days

Exclusion Criteria:

* Monitoring with implantable volume or pressure monitoring devices, or
* Planned cardiac surgery or major intervention (e.g., LVAD or transplant), or
* Otherwise inability or unwillingness to comply with study procedures.

Where it's running

  • Brigham and Women's Hospital
    Boston, Massachusetts, United States
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.