Pulse OximetryNCT07680530
SpO2 Verification Study - Philips Nasal Alar With Nellcor OxiMax SpO2 Board (453564624031)
An observational study of Pulse Oximetry, run by Philips Clinical & Medical Affairs Global at 1 site in United States.
Trial summary
The primary purpose of the clinical investigation is to verify the SpO2 accuracy of the Philips AlarX5 SpO2 sensor with Nellcor OxiMax SpO2 Board. Read more about this study
- Who is it for?
- Ages 18 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Pulse Oximetry
- What is being tested?
- Evaluation of Oxygen Sensors
- How many people
- 43 participants
- Where
- 1 siteUnited States
- Study dates
- 28 May 2026to 29 Jun 2026
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 50 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: The study population will include a minimum of 36 to 72 healthy adult volunteers.
Who may be able to join
- Participant must have the ability to understand and provide written informed consent
- Participant is an adult between 18-50 years of age
- Participant must be willing and able to comply with study procedures and duration
- Participant is a non-smoker or who has not smoked within 2 days prior to the study
Who cannot join
- Participant is considered as being morbidly obese (defined as BMI >39.5)
- Compromised circulation (i.e., Raynaud's Syndrome), injury, or physical malformation of fingers, hands, nose, ears or forehead/skull or other sensor sites which would limit the ability to test sites needed for the study. Tattoos (e.g. permanent, Henna) or artificial dyes (e.g. spray tan, artificial tanning lotion) in the optical path which would limit the ability to test sites needed for the study. (Note: Certain malformations may still allow participants to participate if the condition is noted and would not affect the sites utilized.)
- Females who are pregnant
- Females who are trying to get pregnant with confirmation of positive urine pregnancy test
- Participants who have smoked in the last 2 days or participants who have refrained, for at least 48 hours, with COHb levels >3% as assessed with a Masimo Radical 7 (Rainbow)
- Participants with known respiratory conditions such as: (self-reported)
Show all 58Show fewer
- uncontrolled / severe asthma
- flu
- pneumonia / bronchitis
- shortness of breath / respiratory distress
- unresolved respiratory or lung surgery
- emphysema, COPD, lung disease
- recent COVID with hospitalization
- Participants with self-reported heart or cardiovascular conditions such as: (self-reported, except for blood pressure and ECG review)
- high blood pressure: systolic >140 mmHg or diastolic >90 mmHg on 3 consecutive readings (reviewed during health screen)
- have had cardiovascular surgery, except successful minor surgery without clinical symptoms (i.e., PFO, PDA)
- chest pain (angina)
- heart rhythms other than a normal sinus rhythm or with respiratory sinus arrhythmia (reviewed during health screen)
- previous heart attack
- blocked artery
- unexplained shortness of breath
- congestive heart failure (CHF)
- history of stroke
- transient ischemic attack
- carotid artery disease
- myocardial ischemia
- myocardial infarction
- cardiomyopathy
- implantable active medical device such as pacemaker or automatic defibrillator
- Participants with self-reported health conditions
- diabetes
- uncontrolled thyroid disease
- kidney disease / chronic renal impairment,
- history of seizures (except childhood febrile seizures)
- epilepsy
- history of unexplained syncope
- recent history of frequent migraine headaches
- recent symptomatic head injury (within the last 2 months) with continued symptoms
- cancer requiring chemotherapy, radiation, or current treatment - Participants with known clotting disorders (self reported)
- history of bleeding disorders or personal history of prolonged bleeding from injury
- history of blood clots
- hemophilia
- current use of blood thinner: prescription or daily use of aspirin
- Sickle Cell Trait or Disease - Participants with self-reported dermatological conditions at sensor application sites
- severe dermatitis
- hyperkeratosis
- nail fungus - Participants with severe contact allergies to standard adhesives, latex, silicone or other materials found in pulse oximetry sensors, ECG electrodes, respiration monitor electrodes or other medical sensors (self reported)
- Participants with severe allergies to iodine (only applicable if iodine is used)
- Participants with severe allergies to lidocaine (or similar pharmacological agents, e.g. Novocaine)
- Participants with allergies to ultrasound gel
- Failure of the Perfusion Index Ulnar/Ulnar+Radial Ratio test (Ratio <0.4)
- Unwillingness or inability to remove nail polish, nail jewelry, or artificial nails from test digits. Bruised nail bed of test digits.
- Unwillingness or inability to remove makeup, creams, lotions, sunscreen, or powders from application sites on the nose or ear.
- Unwillingness or inability to cut/trim fingernail(s) of test digits if determined length will interfere with correct application of the sensor
- Piercing at application site of the ear or nose sensors that may interfere with correct placement of sensor
- Participants received colored intravascular dye within the past 48 hours (e.g. Indocyanine green, methylene blue, dyes used in cardiac output monitoring)
- Surgical hardware in pathway of Device Under Test
- Other known health conditions should be considered upon disclosure
Trial locations and contacts
1 site in 1 country.
United States1 site
Element Materials Technology
Louisville, Colorado, 80027
About this study
The primary purpose of the clinical investigation is to verify the SpO2 accuracy of the Philips AlarX5 SpO2 sensor with Nellcor OxiMax SpO2 Board.
Read the detailed description
To verify the SpO2 accuracy of the AlarX5 SpO2 sensor (nasal ala application) with the Nellcor OxiMax pulse oximetry technology during non-motion conditions over the range of 70-100% SaO2, when compared with the reference SaO2 obtained from CO-Oximetry analysis of arterial blood samples.
- Conditions
- Pulse Oximetry
- Being tested
- Evaluation of Oxygen Sensors
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Evaluation of Oxygen SensorsOther
The experimental Philips AlarX5 SpO2 sensor will be tested with Nellcor OxiMax pulse oximetry technology. The AlarX5 SpO2 sensor will be connected via an adapter cable to an IntelliVue X3 Patient Monitor integrated with a Nellcor OxiMax SpO2 Board. Within the study, biomedical/health related outcomes as it relates to the healthy volunteers are not evaluated. The data collected will be used to evaluate how accurate the pulse oximeter (DUT) is to the reference.
Devices under test are listed below:
- Nellcor OxiMax SpO2 Board (453564624031) integrated within Philips IntelliVue X3 Patient Monitor (867030)
- Philips AlarX5, Experimental SpO2 sensor based on the Nasal Alar design (nasal ala and earlobe placement)
- Philips M1943NL SpO2 Adapter Cable (3m)
| Study group | Role | What they receive |
|---|---|---|
| Healthy Volunteers | Participants are healthy, non-smoking (or has refrained from smoking for 2 days) competent adults, ages 18 to 50 years. Receives: Other: Evaluation of Oxygen Sensors |
What is being measured
The primary outcome is the main question the study is designed to answer.
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (nasal ala application) compared to arterial oxygen saturation.
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (nasal ala application) compared to arterial oxygen saturation.
Measured: Up to 6 weeks
Secondary outcomes (1)
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (earlobe placement) during non-motion conditions.
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (earlobe placement) during non-motion conditions.
Measured: Up to 6 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Jul 2026
- Study start28 May 2026
- Primary completion29 Jun 2026
- Study completion29 Jun 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Pulse OximetryStudies of the same condition, open and under way.
- More trials run by Philips Clinical & Medical Affairs GlobalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 43 participants (actual)
Sponsor and investigators
- Lead sponsor
- Philips Clinical & Medical Affairs Global
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07680530
- Sponsor's protocol ID
- SEF-2025-301123
- Status last verified
- Jul 2026
- First submitted
- 16 Jun 2026
- Last updated
- 16 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- Undecided: This is currently under consideration.
Study at a glance
From the registry record, last updated by the sponsor on 16 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- SpO2 Verification Study - Philips Nasal Alar With Nellcor OxiMax SpO2 Board (453564624031)
- ClinicalTrials.gov ID
- NCT07680530
- Acronym / sponsor ID
- SEF-2025-301123
- Conditions
- Pulse Oximetry
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 43 participants (actual)
- Lead sponsor
- Philips Clinical & Medical Affairs GlobalIndustry (pharma, biotech, devices)
- Study start
- 28 May 2026 (actual)
- Primary completion
- 29 Jun 2026 (actual)
- Study completion
- 29 Jun 2026 (actual)
- First posted
- 2 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary purpose of the clinical investigation is to verify the SpO2 accuracy of the Philips AlarX5 SpO2 sensor with Nellcor OxiMax SpO2 Board.
Detailed description
To verify the SpO2 accuracy of the AlarX5 SpO2 sensor (nasal ala application) with the Nellcor OxiMax pulse oximetry technology during non-motion conditions over the range of 70-100% SaO2, when compared with the reference SaO2 obtained from CO-Oximetry analysis of arterial blood samples.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Healthy Volunteers | – | Other: Evaluation of Oxygen SensorsParticipants are healthy, non-smoking (or has refrained from smoking for 2 days) competent adults, ages 18 to 50 years. |
Who may qualify
- Ages
- 18 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- The study population will include a minimum of 36 to 72 healthy adult volunteers.
Key inclusion criteria (4 listed)
- Participant must have the ability to understand and provide written informed consent
- Participant is an adult between 18-50 years of age
- Participant must be willing and able to comply with study procedures and duration
- Participant is a non-smoker or who has not smoked within 2 days prior to the study
Key exclusion criteria (58 listed)
- Participant is considered as being morbidly obese (defined as BMI >39.5)
- Compromised circulation (i.e., Raynaud's Syndrome), injury, or physical malformation of fingers, hands, nose, ears or forehead/skull or other sensor sites which would limit the ability to test sites needed for the study. Tattoos (e.g. permanent, Henna) or artificial dyes (e.g. spray tan, artificial tanning lotion) in the optical path which would limit the ability to test sites needed for the study. (Note: Certain malformations may still allow participants to participate if the condition is noted and would not affect the sites utilized.)
- Females who are pregnant
- Females who are trying to get pregnant with confirmation of positive urine pregnancy test
- Participants who have smoked in the last 2 days or participants who have refrained, for at least 48 hours, with COHb levels >3% as assessed with a Masimo Radical 7 (Rainbow)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Evaluation of Oxygen SensorsThe experimental Philips AlarX5 SpO2 sensor will be tested with Nellcor OxiMax pulse oximetry technology. The AlarX5 SpO2 sensor will be connected via an adapter cable to an IntelliVue X3 Patient Monitor integrated with a Nellcor OxiMax SpO2 Board. Within the study, biomedical/health related outcomes as it relates to the healthy volunteers are not evaluated. The data collected will be used to evaluate how accurate the pulse oximeter (DUT) is to the reference. Devices under test are listed below: * Nellcor OxiMax SpO2 Board (453564624031) integrated within Philips IntelliVue X3 Patient Monitor (867030) * Philips AlarX5, Experimental SpO2 sensor based on the Nasal Alar design (nasal ala and earlobe placement) * Philips M1943NL SpO2 Adapter Cable (3m) | Other | Healthy Volunteers |
Primary outcome
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (nasal ala application) compared to arterial oxygen saturation.
Time frame: Up to 6 weeks
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (nasal ala application) compared to arterial oxygen saturation.
1 secondary outcome
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (earlobe placement) during non-motion conditions.
Time frame: Up to 6 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Jul 2026.
- Individual participant dataSharing planned: Undecided. This is currently under consideration.
Related trials for Pulse Oximetry
Not yet recruitingObservational study
"Comparison of Oxygen Reserve Index (ORI), End-Tidal Oxygen, and Time-Based Preoxygenation Targets With Arterial Blood Gas During Preoxygenation
Preoxygenation Adequacy Assessed by Oxygen Reserve Index, End-tidal Oxygen and Arterial Blood Gas
RecruitingObservational study
Comparison of Pulse Oximetry (SpO2) With Different Oximeters and Arterial Saturation (SaO2): Oxygap2 Study
Respiratory Failure, Hypoxemia
Recruiting
Temporal Dynamics of Peripheral SpO₂ During Reoxygenation
Healthy Vollunteer, Apnea
Recruiting
Transoral Nasal Cannula Oxygen Therapy for Mouth-Breathing Patients in the Postanesthesia Care Unit
Postoperative Hypoxemia
Not yet recruiting
Cohesive Bandage Fixation of Pulse Oximeter Probes and Skin Condition in Preterm Neonates
Skin Injury, Premature Birth
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Pulse Oximetry, run by Philips Clinical & Medical Affairs Global at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 58 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 16 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Measurement and comparison of SpO2 accuracy of the AlarX5 SpO2 sensor (nasal ala application) compared to arterial oxygen saturation. (time frame: Up to 6 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jul 2026.