# Clinical Feasibility of a Non-invasive Wearable Acoustic Device for Measuring Air Trapping in COPD

> **NCT04450368** · — · TERMINATED · sponsor: **Respira Labs, Inc** · enrollment: 8 (actual)

## Conditions studied

- COPD
- COPD Exacerbation

## Interventions

- **DEVICE:** Sylvee

## Key facts

- **NCT ID:** NCT04450368
- **Lead sponsor:** Respira Labs, Inc
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** TERMINATED
- **Start date:** 2022-03-01
- **Primary completion:** 2023-05-30
- **Final completion:** 2023-06-01
- **Target enrollment:** 8 (ACTUAL)
- **Why stopped:** Site failed to hit recruitment targets
- **Last updated:** 2023-06-18

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04450368

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04450368, "Clinical Feasibility of a Non-invasive Wearable Acoustic Device for Measuring Air Trapping in COPD". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04450368. Licensed CC0.

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