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CompletedNCT00788983Updated Sep 20, 2013

Induced Hypoxia Study for Validation of SpO2 Accuracy

An observational study in Hypoxia, sponsored by Nonin Medical, Inc. Completed at 1 site in United States. Open to participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-09-20.

Sponsored by Nonin Medical, Inc · Observational

Study type
Observational
Time perspective
Prospective
Enrollment
12
Ages
18 Years to 40 Years
Sex
All
01

Study summary

Validate Non-Motion SpO2 Accuracy from 70%-100% of various pulse oximeter/ sensor combinations and various OEM pulse oximeter modules and sensor combinations during induced hypoxia (desaturation).

Read the detailed description

The testing is conducted on 12 healthy, consenting, non-smoking subjects in accordance with the IRB approved Protocol. The subjects shall be distributed across both genders and a range of skin tones as equally as practical.

An arterial line will be placed in the radial artery of each subject's right arm, and sensors will be attached to each subject. The subjects will be placed in a semi-supine position and allowed to breathe through a mouthpiece while the nose is blocked with a nose-clip.

Hypoxia will be induced by on each subject, as levels of oxyhemoglobin saturation (between 70% and 100%) are achieved by breathing mixtures of nitrogen, room air and carbon dioxide. Inspired O2 concentration will be adjusted breath-by-breath using a computed saturation, based on end-tidal PO2 and PCO2, as sampled by a mass spectrometer. Predicted levels of oxyhemoglobin saturations will be attained and held stable. At a minimum of sixty seconds into each plateau, a 0.5cc waste blood draw through the arterial line, followed by the first 1.0cc sample blood draw. After approximately thirty additional seconds, the second 1.0cc sample blood draw will be taken. The samples will immediately be analyzed by a Radiometer OSM-3 multi-wavelength co-oximeter and recorded. The SpO2 data from the oximeters will be collected via a laptop computer. Concurrent with the end of each blood draw, a marker will be generated on the laptop computers to identify the event.

02

Conditions studied

  • Hypoxia

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Keywords

  • Induced hypoxia
  • Pulse oximeter
  • Nonin Medical
  • Verification of SpO2 accuracy
03

In context

Hypoxia

1,231 studies on the registry are indexed under Hypoxia; 241 are open to participants now.

This study's enrollment of 12 is below the median of 67 across 335 observational studies indexed under Hypoxia.

Browse Hypoxia studies →

Lead sponsor

Nonin Medical, Inc is the lead sponsor of 18 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Healthy, consenting, non-smoking subjects, 18 years or greater, both genders and a range of skin tones

Inclusion criteria

  • Non-smokers
  • Healthy; no known blood disorders
  • Finger sizes within the sensor specifications
  • Minimum 18 years of age

Exclusion criteria

Exclusion Criteria:

  • Artificial nails or fingernail polish
05

Study design

Time perspective
Prospective
Enrollment
12 participants (actual)
06

What researchers measure

Primary outcomes

  1. SpO2 Accuracy Verification Study (Arms)of ≤3 between 70 & 100%

    Time frame: During Analysis

07

Study locations

1 site
  • University of California, San Francisco, Induced Hypoxia Lab
    San Francisco, California 94143, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 20, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00788983
Lead sponsor
Nonin Medical, Inc
Responsible party
Sponsor
First posted
Nov 11, 2008
Start date
Nov 2008
Primary completion
Nov 2008
Completion
Nov 2008
Last update
Sep 20, 2013

Study contacts

Philip E Bickler, MD
principal investigator · University of California, San Francisco

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2008. You cannot join it, but the record below documents what was studied.

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