# On the PhonE Respiratory rAte Study (OPERA)

> **NCT04077593** · — · COMPLETED · sponsor: **University Hospital, Grenoble** · enrollment: 25 (actual)

## Conditions studied

- Respiratory Rate

## Interventions

- **DEVICE:** RRate Mobile app

## Key facts

- **NCT ID:** NCT04077593
- **Lead sponsor:** University Hospital, Grenoble
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2018-10-21
- **Primary completion:** 2020-10-30
- **Final completion:** 2020-11-30
- **Target enrollment:** 25 (ACTUAL)
- **Last updated:** 2021-03-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04077593

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04077593, "On the PhonE Respiratory rAte Study (OPERA)". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT04077593. Licensed CC0.

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