NCT02886312

Brief Summary

This study will evaluate patient comfort and oxygen delivery efficiency when providing supplemental oxygen through a nasal cannula to volunteers using an instrumented oxygen delivery system. The goals of the study are to evaluate different oxygen flow rates and oxygen delivery modes. In addition, the investigators will investigate if the system can detect apnea (cessation of breathing) and removal of the nasal cannula. The investigators will also investigate how well high flow oxygen delivered only during inspiration is tolerated and how much the end-tidal oxygen increases after two minutes of high oxygen flow delivered only during the inhalation phase of the breath.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Aug 2015

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2015

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2016

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

August 19, 2016

Completed
13 days until next milestone

First Posted

Study publicly available on registry

September 1, 2016

Completed
Last Updated

January 30, 2025

Status Verified

December 1, 2017

Enrollment Period

1 year

First QC Date

August 19, 2016

Last Update Submit

January 27, 2025

Conditions

Outcome Measures

Primary Outcomes (5)

  • End-tidal Oxygen

    Did the novel system increase end-tidal oxygen?

    Continuously throughout 30 minute volunteer study

  • Patient Comfort

    Did the patients feel it was more comfortable for a given end-tidal oxygen level?

    Every 2 minutes up to 30 minutes

  • End-tidal Carbon Dioxide

    Was end-tidal carbon dioxide measured more accurately using the novel system?

    Continuously throughout 30 minute volunteer study

  • Respiratory Rate

    Compared respiratory rate against capnometry.

    Continuously throughout 30 minute volunteer study

  • Oxygen Saturation

    Did the novel system increase oxygen saturation?

    Continuously throughout 30 minute volunteer study

Interventions

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Healthy volunteers drawn from the general public and students, staff, and faculty of the University of Utah.

You may qualify if:

  • Healthy volunteers drawn from the general public and students, staff, and faculty of the University of Utah.

You may not qualify if:

  • Volunteers who self report respiratory diseases such as acute respiratory distress syndrome, pneumonia and lung cancer will be excluded. In addition, volunteers who self report respiratory conditions such as nasal or bronchial congestion due to a cold or allergies will be excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Utah

Salt Lake City, Utah, 84112, United States

Location

Related Publications (3)

  • Chanques G, Constantin JM, Sauter M, Jung B, Sebbane M, Verzilli D, Lefrant JY, Jaber S. Discomfort associated with underhumidified high-flow oxygen therapy in critically ill patients. Intensive Care Med. 2009 Jun;35(6):996-1003. doi: 10.1007/s00134-009-1456-x. Epub 2009 Mar 18.

    PMID: 19294365BACKGROUND
  • Sasaki H, Yamakage M, Iwasaki S, Mizuuchi M, Namiki A. Design of oxygen delivery systems influences both effectiveness and comfort in adult volunteers. Can J Anaesth. 2003 Dec;50(10):1052-5. doi: 10.1007/BF03018373.

    PMID: 14656787BACKGROUND
  • Burk KM, Sakata DJ, Kuck K, Orr JA. Comparing Nasal End-Tidal Carbon Dioxide Measurement Variation and Agreement While Delivering Pulsed and Continuous Flow Oxygen in Volunteers and Patients. Anesth Analg. 2020 Mar;130(3):715-724. doi: 10.1213/ANE.0000000000004004.

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 19, 2016

First Posted

September 1, 2016

Study Start

August 1, 2015

Primary Completion

August 1, 2016

Study Completion

August 1, 2016

Last Updated

January 30, 2025

Record last verified: 2017-12

Locations