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CompletedNCT02842476Updated Jul 25, 2016

Accuracy Validation of the Cadwell Pulse Oximetry System

An observational study in Anoxia, sponsored by Cadwell Industries, Inc.. Completed. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-07-25.

Sponsored by Cadwell Industries, Inc. · Observational

Study type
Observational
Model
Case-only
Time perspective
Cross-sectional
Enrollment
11
Ages
18 Years to 50 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate the SpO2 accuracy and performance of the Cadwell Pulse Oximetry system during non-motion conditions over the range of 70-100% SaO2 as compared to arterial blood samples assessed by CO-Oximetry for SpO2 validation. The end goal is to show the SpO2 accuracy performance of the Cadwell Pulse Oximetry System. It is expected that the Accuracy Root Mean Square (Arms) performance of the Cadwell Pulse Oximetry System will meet a specification of 3 or better in non-motion conditions for the range of 70-100% SaO2 thereby demonstrating an acceptable SpO2 accuracy performance specification.

Read the detailed description

The SpO2 accuracy performance of the Cadwell Pulse Oximetry systems will be evaluated during non-motion conditions over the range of 70-100% SaO2 and compared to arterial blood samples assessed by COOximetry. A minimum of 10 healthy adult subjects, ranging in pigmentation from light to dark, will be enrolled in the study to meet the study design requirements defined by ISO 80601-2-61 and by the FDA's Guidance for Pulse Oximeters (March 4, 2013). The subjects will have an arterial catheter placed in the radial artery to allow for simultaneous blood samples during stable plateaus of induced hypoxic levels. The investigational devices will be placed on fingers for the test sites. Simultaneous data collection will be set up for each of the systems under test.

For the data analysis, the control oximeter will be used to assess the stability of each data point. Data that is found to be unstable will be removed prior to the comparative analysis. Next the CO-Oximeter data will be reviewed to make sure it does not contain any anomalous values such as elevated COHb, MetHb or inconsistent data. Anomalous values will be removed from the analysis prior to pairing of the SpO2 and SaO2 data. The statistical analysis is performed on a minimum of 200 data points collected on at least 10 subjects for the range of 67% to 100% SaO2. Functional SaO2 as measured by Reference CO-Oximetry will be used as the basis for comparison. The Accuracy Root Mean Square (ARMS) calculation is used to determine the SpO2 accuracy performance. Success will be achieved with an ARMS of 3 or better showing equivalence to the Gold Standard Reference CO-Oximetry providing documentation to support SpO2 accuracy claims for the investigational device.

02

Conditions studied

  • Anoxia

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Keywords

  • pulse oximetry
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 11 is below the median of 67 across 335 observational studies indexed under Hypoxia.

Browse Hypoxia studies →

Lead sponsor

This is the only study on the registry with Cadwell Industries, Inc. as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Following Salus Independent Review Board (IRB) approval for the Study Procedure Title: "Accuracy Validation of the Cadwell Pulse Oximetry System", Clinimark Study ID# PR 2016-177, eleven healthy adult volunteer subjects were enrolled into the study. The demographics for the study included five males and six females (age: 21-46yrs, weight: 118-220lbs, height: 60-74", BMI: 20.9-30.7). For the demographics based on race, the subject pool included one Black / African-American, three Asians (one of Indian descent), and seven White. The ethnicity for the group is four Hispanic, and seven Non-Hispanic / Non-Latino. The skin pigmentation / tones ranged from light to dark meeting the requirement of at least 2 darkly pigmented or 15 % of the subject pool whichever is larger.

Inclusion criteria

  • Ability to understand and provide written informed consent
  • 18 to 50 years of age
  • Non-smoker or who has not smoked within 2 days prior to the study.
  • Male or female
  • Any race

Exclusion criteria

Exclusion Criteria:

  • Morbidly obese (defined as BMI >39.5)
  • Compromised circulation, injury, or physical malformation of fingers, toes, hands, ears or forehead/skull
  • Females who are pregnant, who are trying to get pregnant, or have a urine test positive for pregnancy on the day of the study
  • COHb levels >3% as assessed with a Masimo Radical 7 (Rainbow)
  • Respiratory conditions
  • Heart or cardiovascular conditions
  • Self reported health conditions
  • Blood clotting disorders
  • Severe contact allergies to standard adhesives, latex or other materials
  • Unwillingness or inability to remove colored nail polish from test digits
  • Other known health condition, should be considered upon disclosure in health
05

Study design

Observational model
Case-only
Time perspective
Cross-sectional
Enrollment
11 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Disposable Sensor

    Adhesive based Pulse Oximeter Probes, Model S0136J

    Device: Disposable Sensor

  • Reusable Sensor

    Reusable Pulse Oximeter Probes, Model S0080D

    Device: Reusable Sensor

  • Control Pulse Oximetry

    Reference CO-Oximeters ABL80 Flex OSM (Radiometer), # 302125, 307205 IL682 (Instrumentation Laboratories), # 012511B (ILH), #012511A (ILG)

    Device: Control Pulse Oximetry

Interventions

  • DeviceDisposable Sensor

    Two adhesive based Pulse Oximeter Probes, S0136J-L were connected to the Cadwell Pulse Oximetry and then placed on each subject to evaluate the SpO2 accuracy performance during steady state non-motion conditions.

    Also known as: Model S0136J-L

  • DeviceReusable Sensor

    Two soft reusable Pulse Oximeter Probes, Model S0080D-S were connected to the Cadwell Pulse Oximetry and then placed on each subject to evaluate the SpO2 accuracy performance during steady state non-motion conditions.

    Also known as: Model S0080D-S

  • DeviceControl Pulse Oximetry

    A Clinimark Control Pulse Oximetry system was also placed on the subject to evaluate the stability of the draws.

    Also known as: Reference Co-Oximeters, ABL80 Flex OSM (Radiometer): # 302125, 307205 IL682 (Instrumentation Laboratories): # 012511B (ILH), #012511A (ILG)

06

What researchers measure

Primary outcomes

  1. SpO2 Sensor Values

    SpO2 values (%) from the Cadwell pulse oximetry device using disposable and reusable sensors were collected electronically at one second intervals.

    Time frame: Through study completion, an average of 1 day

Secondary outcomes

  1. Arterial Oxygen Saturation

    Each subject was presented with various levels of induced hypoxia resulting in stable oxygen saturation levels between 100% and 67% SaO2. Arterial blood draws were collected under non-motion conditions. The blood was immediately analyzed to measure the arterial oxygen saturation.

    Time frame: Through study completion, an average of 1 day

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 25, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02842476
Lead sponsor
Cadwell Industries, Inc.
Collaborators
Clinimark, LLC
Responsible party
Sponsor
First posted
Jul 25, 2016
Start date
Jun 2016
Primary completion
Jun 2016
Completion
Jun 2016
Last update
Jul 25, 2016

Oversight

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

Not currently enrolling

This study is completed, as verified in Jul 2016. You cannot join it, but the record below documents what was studied.

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