Healthy
Conditions
Brief summary
This study is designed to compare the accuracy of a noninvasive measurement of oxygen saturation and pulse rate to reference values obtained by a laboratory blood gas analyzer and a standard of care EKG monitor. Study procedures follow ISO-80601-2-61:2011 standard requirements for basic safety and essential performance of pulse oximeter equipment. Arterial blood samples will be collected from subjects while undergoing a controlled desaturation procedure wherein the concentration of oxygen inhaled is slowly reduced until the subject's arterial oxygen concentration is approximately 70%.
Interventions
DEVICEINVSENSOR00040
Noninvasive wearable health monitoring device
Sponsors
Masimo Corporation
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* Subject is 18 to 50 years of age. * Subject weighs a minimum of 110 lbs. * Subject has a hemoglobin value ≥ 11 g/dL. * Subject's baseline heart rate is ≥ 45 bpm and ≤ 85 bpm. * Subject's CO value is ≤ 3.0% FCOHb. * Subject's blood pressure: Systolic BP ≤ 140 mmHg and ≥ 90 mmHg, Diastolic BP ≤ 90 mmHg and ≥ 50 mmHg, and if systolic BP is lower than 100 mmHg and/or diastolic BP is lower than 60 mmHg, subject passes an orthostatic blood pressure test. * Subject is able to read and communicate in English and understands the study and the risks involved.
Exclusion criteria
* Subject whose skin is not intact and/or has tattoos in the area of device placement (e.g., wrist).\* * Subject is pregnant. * Subject has a BMI \> 35. * Subject has a history of fainting (vasovagal syncope), blacking out or losing consciousness during or after a blood draw, or has a fear of blood draws. * Subject has open wounds, inflamed tattoos or piercings, and/or has any visible healing wounds that a medical professional determines may place them at an increased risk for participation.\* * Subject has known drug or alcohol abuse. * Subject uses recreational drugs.\* * Subject experiences frequent or severe headaches and/or migraine headaches, migraine auras, altitude sickness, and/or headaches accompanied by visual changes or sensitivity to light or sound. * Subject has experienced a concussion or head injury with loss of consciousness within the past 12 months. * Subject has any history of a stroke, myocardial infarction (heart attack), and/or seizures. * Subject has any chronic bleeding disorder (e.g. hemophilia). * Subject has taken anticoagulant medication within the past 30 days (excluding nonsteroidal anti-inflammatory drugs (NSAIDS)). * Subject has donated blood within the past 4 weeks. * Subject has Wolff-Parkinson-White Syndrome or Stokes-Adams Syndrome. * Subject has any symptomatic cardiac dysrhythmia (e.g. atrial fibrillation) and has not received clearance from their physician to participate. * Subject has a known neurological and/or psychiatric disorder (e.g. schizophrenia, bipolar disorder, multiple sclerosis, Huntington's disease) that interferes with the subject's level of consciousness.\* * Subject has taken opioid pain medication 24 hours before the study. * Subject has any active signs and/or symptoms of infectious disease (e.g. hepatitis, HIV, tuberculosis, flu, malaria, measles, etc.).\* * Subject is taking medications known to treat any type of infectious disease. * Subject has either signs or history of peripheral ischemia or carpal tunnel syndrome. * Subject has had invasive surgery within the past year, including but not limited to major dental surgery, appendectomy, plastic surgery, jaw surgery, major ENT surgery, major abdominal and/or pelvic surgery, heart surgery, or thoracic surgery.\* * Subject has symptoms of congestion, head cold, or other illnesses. * Subject has been in a severe car accident(s) or a similar type of accident(s) requiring hospitalization within the past 12 months. * Subject has any cancer or history of cancer (not including skin cancer).\* * Subject has chronic unresolved asthma, lung disease (including COPD) and/or respiratory disease. * Subject is allergic to lidocaine, chlorhexidine, latex, adhesives, or plastic. * Subject has a heart condition, insulin-dependent diabetes, or uncontrolled hypertension. * Subject has delivered vaginally, has had a pregnancy terminated, a miscarriage with hospitalization, or had a C-section within the past 6 months. * Subject intends on participating in any heavy lifting, repetitive movement of their wrist (including riding a motorcycle, tennis), exercise (working out, riding a bike, riding a skateboard, etc.), or any activity that will put additional stress on the wrist within 24 hours following a study that involves an arterial line. * Subject has any medical condition which in the judgment of the investigator and/or medical staff, renders them ineligible for participation in this study or subject is deemed ineligible by the discretion of the investigator/study staff.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Oxygen Saturation (SpO2) Accuracy of INVSENSOR00040 | 1-5 hours | SpO2 performance will be determined by calculating the arithmetic root square mean (ARMS) value through the comparison of the noninvasive SpO2 measurement obtained from INVSENSOR00040 to the arterial oxygen saturation (SaO2) value obtained from a reference blood sample. The square root of the sum of the squares of bias and precision is computed as the ARMS Error Value. The desaturation range over which the accuracy is performed is 70-100%. |
| Pulse Rate (PR) Accuracy of INVSENSOR00040 | 1-5 hours | Pulse Rate (PR) performance will be determined by calculating the ARMS value through the comparison of the PR values obtained from INVSENSOR00040 to the heart rate (HR) values obtained from a reference standard of care EKG monitor. The square root of the sum of the squares of bias and precision is computed as the ARMS Error Value. The PR/HR range over which the accuracy is calculated is determined by convenience sampling in a generally healthy population undergoing a desaturation procedure. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| INVSENSOR00040 All subjects who are enrolled into the test group and participate in data collection receive the noninvasive INVSENSOR00040 device.
INVSENSOR00040: Noninvasive wearable health monitoring device | 46 |
| Total | 46 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Overall Study | Adverse Event | 1 |
| Overall Study | Did not meet inclusion criteria | 25 |
| Overall Study | Principal Investigator's decision | 17 |
| Overall Study | Subject's decision | 1 |
Baseline characteristics
| Characteristic | INVSENSOR00040 | — |
|---|---|---|
| Age, Categorical <=18 years | 0 Participants | — |
| Age, Categorical >=65 years | 0 Participants | — |
| Age, Categorical Between 18 and 65 years | 46 Participants | — |
| Race and Ethnicity Not Collected | — | — Participants |
| Race/Ethnicity, Customized Ethnicity African American | 15 Participants | — |
| Race/Ethnicity, Customized Ethnicity African American & Asian or Pacific Islander | 1 Participants | — |
| Race/Ethnicity, Customized Ethnicity Asian or Pacific Islander | 9 Participants | — |
| Race/Ethnicity, Customized Ethnicity Hispanic | 9 Participants | — |
| Race/Ethnicity, Customized Ethnicity White | 11 Participants | — |
| Race/Ethnicity, Customized Ethnicity White & Native American | 1 Participants | — |
| Region of Enrollment United States | 46 participants | — |
| Sex: Female, Male Female | 17 Participants | — |
| Sex: Female, Male Male | 29 Participants | — |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | 0 / 46 |
| other Total, other adverse events | 4 / 46 |
| serious Total, serious adverse events | 0 / 46 |
Outcome results
Primary
Oxygen Saturation (SpO2) Accuracy of INVSENSOR00040
SpO2 performance will be determined by calculating the arithmetic root square mean (ARMS) value through the comparison of the noninvasive SpO2 measurement obtained from INVSENSOR00040 to the arterial oxygen saturation (SaO2) value obtained from a reference blood sample. The square root of the sum of the squares of bias and precision is computed as the ARMS Error Value. The desaturation range over which the accuracy is performed is 70-100%.
Time frame: 1-5 hours
Population: Data from 13 subjects was excluded due to desaturation procedural error. Data from 1 subject was excluded due to missing data and evidence of noise interference that did not allow for the comparison of the dataset.~Data from 1 subject was excluded because the subject complained of discomfort at the early part of the desaturation procedure and therefore was unable to desaturate to below 90% SaO2.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| INVSENSOR00040 | Oxygen Saturation (SpO2) Accuracy of INVSENSOR00040 | 1.62 % of oxygen saturated hemoglobin |
Primary
Pulse Rate (PR) Accuracy of INVSENSOR00040
Pulse Rate (PR) performance will be determined by calculating the ARMS value through the comparison of the PR values obtained from INVSENSOR00040 to the heart rate (HR) values obtained from a reference standard of care EKG monitor. The square root of the sum of the squares of bias and precision is computed as the ARMS Error Value. The PR/HR range over which the accuracy is calculated is determined by convenience sampling in a generally healthy population undergoing a desaturation procedure.
Time frame: 1-5 hours
Population: Data from 13 subjects excluded due to desaturation procedural error. Data from 1 subject excluded due to missing data \& evidence of noise interference that did not allow for the comparison of the dataset.~Data from 1 subject excluded because subject complained of discomfort at early part of desaturation procedure, therefore was unable to desaturate to below 90% SaO2.~Data from 2 subjects excluded for no valid PR \& ECG HR pair, because ECG HR data was not recorded in the server properly.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| INVSENSOR00040 | Pulse Rate (PR) Accuracy of INVSENSOR00040 | 1.29 beats per minute |