Accuracy of Methemoglobin Measurement for Rainbow Universal Pulse Oximeter Sensor

Not Applicable

Completed

• Conditions: Healthy

• Registration Number: NCT03125005
• Lead Sponsor: Masimo Corporation

Brief Summary

In this study, the level of methemoglobin (HbMet) will be increased in a controlled manner by administering sodium nitrite intravenously in healthy volunteers. The accuracy of a noninvasive HbMet sensor will be assessed by comparison to blood measurements from a laboratory analyzer.

Detailed Description

Not available

Study Timeline

• Study Start: 2012-04-12
• Primary Completion: 2012-06-21
• Study Completion: 2012-06-21
• Study First Submitted: 2017-04-14
• Study First Submitted QC: 2017-04-20
• Study First Posted: 2017-04-24
• Results First Submitted: 2017-05-08
• Results First Submitted QC: 2017-05-08
• Status Verified: 2017-06
• Results First Posted: 2017-06-06
• Last Update Submitted: 2017-06-28
• Last Update Posted: 2017-07-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 51

Inclusion Criteria

Not provided

Exclusion Criteria

• The subject is obese (BMI>30).
• The subject has a known history of heart disease, lung disease, kidney or liver disease.
• Diagnosis of asthma, sleep apnea, or use of CPAP.
• Subject has diabetes.
• Subject has a clotting disorder.
• The subject has a hemoglobinopathy or history of anemia, per subject report or the first blood sample, that in the opinion of the investigator, would make them unsuitable for study participation.
• The subject has any other serious systemic illness.
• The subject is a current smoker.
• Any injury, deformity, or abnormality at the sensor sites that in the opinion of the investigators' would interfere with the sensors working correctly.
• The subject has a history of fainting or vasovagal response.
• The subject has a history of sensitivity to local anesthesia or allergy to the study drugs.
• The subject has a diagnosis of Raynaud's disease.
• The subject has unacceptable collateral circulation based on exam by the investigator (Allen's test).
• The subject is pregnant, lactating or trying to get pregnant.
• The subject has a history of migraine headaches.
• The subject is currently taking antidepressants.
• The subject is unable or unwilling to provide informed consent, or is unable or unwilling to comply with study procedures.
• The subject has any other condition, which in the opinion of the investigators' would make them unsuitable for the study.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Primary Outcome Measures

Name	Time	Method
Accuracy of Sensor by Arms Calculation	5 hours	Accuracy willl be determined by comparing the noninvasive blood methemoglobin measurement (expressed as a percentage of total hemoglobin) of the pulse oximeter to that obtained from a blood sample and calculating the arithmetic root mean square(Arms) error value.

Trial Locations

Locations (2)

Masimo Clinical Lab; 🇺🇸 Irvine, California, United States

University of San Francisco; 🇺🇸 San Francisco, California, United States