NCT05812378

Brief Summary

The goal of this observational study is collect data to evaluate the efficacy of the RMS system in monitoring, recording, and presenting respiratory function data to the user in participants scheduled for pulmonary function testing (PFT). Participants will complete:

  • 60 episodes of data collection with a decreased tidal volume
  • 30 episodes of data collection with an increased tidal volume
  • 80 episodes with normal tidal volume breathing The TSS will continuously transmit sound data to an adjacent personal computer (PC) via Bluetooth Low-Energy (BLE). TSS trachea sound data will be recorded on the PC and then transmitted via a secure wireless network to an RTM cloud account that is HIPPA compliant. Reference breathing data will be simultaneously recorded using an FDA approved hospital ventilator (Hamilton Medical, HAMILTON-C1) with a calibrated pneumotach, capnometer, and a tight-fitting face mask. This system accurately measures and records a spontaneously breathing patient's RR, TV, MV, and end-tidal carbon dioxide concentration.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Mar 2023

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 24, 2023

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

April 2, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

April 13, 2023

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 9, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 9, 2023

Completed
Last Updated

April 13, 2023

Status Verified

April 1, 2023

Enrollment Period

9 months

First QC Date

April 2, 2023

Last Update Submit

April 2, 2023

Conditions

Keywords

Minute Ventilation

Outcome Measures

Primary Outcomes (9)

  • Efficacy of RMS of the RMS system in monitoring, recording, and presenting respiratory function data to the user

    The RMS measures respiratory rate, approximate/relative tidal volume, and approximate/relative minute ventilation when compared to measurements made with the HAMILTON ventilator pneumotach device

    20 minutes

  • Mean Measurement Accuracy Error for Respiratory Rate

    Mean measurement accuracy error for RR across all subjects shall be ≤ 5 % (±1 breath/minute) compared to the pneumotach

    20 minutes

  • Mean Measurement Accuracy Error for Tidal Volume

    Mean measurement accuracy error for TV across all subjects shall be ≤15% compared to the pneumotach

    20 minutes

  • Mean measurement accuracy error for Minute Ventilation

    Mean measurement accuracy error for MV across all subjects shall be ≤15% compared to the pneumotach

    20 minutes

  • Mean measurement bias for Respiratory Rate

    Mean measurement bias (RMS-pneumotach) for RR shall be \< 2% (95% limits of agreement ±1.96 SD)

    20 minutes

  • Mean measurement bias for Tidal Volume

    Mean measurement bias (RMS-pneumotach) for TV shall be \< 5% (95% limits of agreement ±1.96 SD)

    20 minutes

  • Mean measurement bias for Minute Ventilation

    Mean measurement bias (RMS-pneumotach) for MV shall be \< 5% (95% limits of agreement ±1.96 SD)

    20 minutes

  • Tidal volume trend

    Tidal volume trend \> 0.95 (r² correlation to pneumotach)

    20 minutes

  • Mean measurement accuracy error for number of seconds since last breath

    Mean measurement accuracy error for number of seconds since last breath across all subjects shall be ≤ 5 % (± 2 seconds) compared to the pneumotach

    20 minutes

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Approximately an equal number of male/female subjects will be studied. Approximately an equal number of subjects will be in the 21 to 40 age range, the 41 to 60 age range, and the \> 60 age range. Outpatients scheduled for testing at the PFT Laboratory facility at Thomas Jefferson University Hospital will be recruited for study. Breathing data will be collected by study personnel approximately one hour before or after the scheduled PFT. All patients who meet required inclusion and exclusion criteria are eligible for enrollment.

You may qualify if:

  • Age 21 to ≤ 80 years
  • Subject has no active signs/symptoms of a respiratory infection, severe asthma, severe bronchitis, severe emphysema, or unstable cardiovascular disease at the time of data collection
  • Body Mass Index between 18 to 38
  • Subject willing and able to comply with the study procedures
  • Subject understands the English language, understands the risks, benefits, and alternatives to this research study, and is willing and able to give written informed consent

You may not qualify if:

  • Subject has an active respiratory infection, unstable cardiovascular disease, severe asthma, severe bronchitis, or severe emphysema at the time of study
  • Recent COVID illness (must be symptom free for \> 10 days or recent COVID exposure within last 10 days
  • History of skin sensitivity to the sensor, adhesive, or face mask materials
  • Active inflammation or infection of the skin at the site of TSS attachment
  • Subject is pregnant or breastfeeding
  • Current participation in another industry sponsored drug or device study
  • Patient has a history of anxiety or claustrophobia related to wearing a face mask
  • Age \< 21 or \> 80 years old
  • BMI \< 18 or \> 38

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Thomas Jefferson University Hospital

Philadelphia, Pennsylvania, 19107, United States

RECRUITING

MeSH Terms

Conditions

Respiratory Sounds

Condition Hierarchy (Ancestors)

Signs and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Marc Torjman, PhD

    Thomas Jefferson University and Hospitals Department of Anesthesiology and Perioperative Medicine

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Breanna Atherton, BS

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 2, 2023

First Posted

April 13, 2023

Study Start

March 24, 2023

Primary Completion

December 9, 2023

Study Completion

December 9, 2023

Last Updated

April 13, 2023

Record last verified: 2023-04

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