ClinicalTrials.gg
RecruitingNCT07825363Updated Sep 17, 2026

Clinical Evaluation of NIRSense Tissue Oximetry Sensor Monitoring to Early Detect Cardiogenic Shock

An observational study in Cardiogenic Shock, Acute Myocardial Infarction and Acute Decompensated Heart Failure, sponsored by NIRSense Inc.. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-17.

Sponsored by NIRSense Inc. · Observational

From the registry’s dates

  • Started Jun 2025; still recruiting 1 year 4 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
20
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 49 studies in Shock, Cardiogenic with a site in United States — 19 open to participants now, 22 under way, none of them phase 3. Shock, Cardiogenic · United States.

Planned enrollment
20th of 24
20 · median 137
Started
2025
with 3 others
Observational
24 of 49
9 open now
Primary completion
2027-01
later than 6 of 21 live
Registered
49th of 49
by date

Among the 49 studies in Shock, Cardiogenic with a site in United States, this one is the 20th largest by planned enrollment of the 24 observational ones, is one of 4 that started in 2025, is one of 24 observational ones, reaches primary completion later than 6 of the 21 other live ones, and was the 49th registered.

By phase

49 studies; the count open now beside each. This study's row is marked.

Observationalthis study24 · 9 open
No phase13 · 5 open
Phase 26 · 3 open
Phase 43 · 1 open
Phase 11 · 1 open
Phase 1/21 · 0 open
Phase 31 · 0 open

By the year they started

First in 2005; this study’s year is marked. 4 started in 2025.

Size and results

Median enrollment 30 across the 25 interventional studies, 137 across the 24 observational. Of the 20 that completed or were terminated, 6 (30%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 49 studies in Shock, Cardiogenic with a site in United States, or all of them as a file.
02

Study summary

This is a prospective, single-center, observational pilot study of the investigational NIRSense Tissue Oximetry Sensor System (Envello Core), a noninvasive wearable sensor patch that uses near-infrared spectroscopy (NIRS) and photoplethysmography (PPG), combined with an electrocardiography/impedance cardiography (ECG/ICG) sensor, to continuously monitor tissue oxygen saturation (StO2), peripheral oxygen saturation (SpO2), pulse rate, respiratory rate, stroke volume, and related metrics. Up to 20 adults admitted to the Cleveland Clinic Florida cardiac intensive care unit with acute myocardial infarction or acute decompensated heart failure and in Society for Cardiovascular Angiography and Interventions (SCAI) shock stage B, C, or D will wear the sensors on the sternum, forearm, and other locations for approximately 24 to 72 hours during standard care. Sensor data will be compared with standard-of-care hemodynamic and laboratory measurements and with the patient's clinical course to evaluate the feasibility of the device, the correlation of its measurements with established clinical parameters, and its potential to detect deterioration in SCAI shock stage earlier. No treatment decisions are made based on the study device.

Read the detailed description

Background: Cardiogenic shock (CS) carries a poor prognosis and is the leading cause of death in patients with acute myocardial infarction. When decompensation occurs there is an imperative to institute treatment rapidly. Standard intensive care unit monitoring relies on intermittent hemodynamic and laboratory measures. Continuous, noninvasive measurement of tissue perfusion and oxygenation could allow earlier recognition of deterioration and earlier intervention.

Device: The NIRSense Tissue Oximetry Sensor System is an investigational, non-significant-risk, noninvasive wearable optical physiological monitoring system. It consists of a sensor patch with multiple red and near-infrared light sources and detectors (NIRS and PPG), a pre-applied medical-grade adhesive, an ECG/ICG sensor patch, and a display unit (tablet running the NIRSense application) that receives data over Bluetooth and stores it. The sensor estimates StO2 in microvascular tissue up to about 2.5 cm below the skin and derives PPG-based metrics including pulse rate, respiratory rate, and perfusion index. The device has not been cleared or approved by the U.S. FDA.

Design: Prospective data collection, single-center observational study. Two populations are targeted: (1) patients with acute myocardial infarction, with or without shock (SCAI B to D), admitted for coronary angiography and subsequent interventions, and (2) patients with acute decompensated heart failure admitted for pulmonary artery catheter insertion and subsequent interventions. Participants are enrolled from the existing Cleveland Clinic Florida patient population in a way that avoids disruption of clinical workflow. After informed consent, sensors are placed on the sternum, forearm, and other locations according to manufacturer specifications and remain in place while the patient is in the cardiac intensive care unit, for approximately 24 to 72 hours. Sensors may be repositioned during catheterization or imaging at the investigator's discretion. Participation is limited to the single standard-of-care admission; there is no study follow-up visit or call.

Data collected: Continuous sensor data (StO2, SpO2, pulse rate, respiratory rate, ECG/ICG-derived stroke volume, PPG-derived metrics) and sensor placement images. Data collected during standard-of-care treatment and shared with the sponsor: demographics, Fitzpatrick skin type, medical history, concomitant medications, physical examination, vital signs, a single 12-lead ECG, blood pressure, heart rate, cardiac output (thermodilution) where obtained, clinically ordered lactate values, SCAI stage, and clinical course. Adverse events and device deficiencies are recorded from enrollment through sensor removal. Clinical staff complete a usability survey after using the device on 5 patients.

Analysis: Descriptive statistics for demographics and baseline characteristics; adverse events summarized by frequency and percentage, severity, and device relatedness. Effectiveness analyses use all evaluable data and compare device measurements with standard-of-care hemodynamic parameters and with SCAI stage trajectory, as specified in the Statistical Analysis Plan. Following an interim analysis of the 20-patient pilot, enrollment may be expanded to 200 patients under a protocol amendment; that expansion is not part of this record.

03

Conditions studied

  • Cardiogenic Shock
  • Acute Myocardial Infarction
  • Acute Decompensated Heart Failure

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Keywords

  • near-infrared spectroscopy
  • photoplethysmography
  • impedance cardiography
  • tissue oxygen saturation
  • perfusion index
  • microcirculation
  • wearable sensor
  • noninvasive hemodynamic monitoring
  • SCAI shock stage
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Adults admitted to the Cleveland Clinic Florida cardiac intensive care unit with acute myocardial infarction undergoing coronary angiography, or with acutely decompensated heart failure, who are in SCAI shock stage B, C, or D. Participants are recruited from the existing patient population of the recruitment site.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Acutely decompensated symptomatic heart failure (HF) documented by: (a) symptoms of HF requiring current treatment; (b) Society for Cardiovascular Angiography and Interventions (SCAI) stage B, C, or D; and (c) hospital admission with HF as the primary or secondary diagnosis; OR acute myocardial infarction (MI) patient undergoing coronary angiography
  • Admitted to the intensive care unit and currently in SCAI stage B, C, or D
  • Age 18 years or older
  • Weight greater than 40 kg

Exclusion criteria

Exclusion Criteria:

  • Prior known severe allergy to medical-grade adhesive or tape (self-reported)
  • Currently participating in an drug or device study that would interfere with the conduct or results of this study. Trials requiring extended follow-up for products that were investigational but have since become commercially available are not considered investigational.
  • The investigator believes the participant is not an appropriate candidate for the study
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
20 participants (estimated)
Patient registry
No

Groups and cohorts

  • Acute myocardial infarction

    Patients with acute myocardial infarction, with or without shock (SCAI stage B to D), admitted for coronary angiography and subsequent interventions. Enrolled at the time of consent for coronary angiography.

    Device: NIRSense Tissue Oximetry Sensor System

  • Acute decompensated heart failure

    Patients with acute decompensated heart failure (SCAI stage B to D) admitted for pulmonary artery catheter insertion and subsequent interventions. Consented before or after catheterization.

    Device: NIRSense Tissue Oximetry Sensor System

Interventions

  • DeviceNIRSense Tissue Oximetry Sensor System

    Investigational noninvasive wearable sensor patches using near-infrared spectroscopy and photoplethysmography to continuously measure tissue oxygen saturation, SpO2, pulse rate, respiratory rate, and perfusion index, plus an ECG/ICG sensor patch for stroke volume, with a tablet display and recording application. Sensors are applied to the sternum, forearm, and other locations with a medical-grade adhesive and worn for approximately 24 to 72 hours during standard cardiac ICU care. Sensor data are collected for research only and are not used for treatment decisions.

    Also known as: Envello Core, NIRSense Sensor Oximetry System patch

06

What researchers measure

Primary outcomes

  1. Correlation between NIRSense sensor measurements and standard-of-care hemodynamic parameters

    Correlation coefficients (Pearson and Spearman) between time-matched NIRSense measurements (tissue oxygen saturation, perfusion index, SpO2, pulse rate, respiratory rate, ICG-derived stroke volume) and standard-of-care clinical measurements (arterial blood pressure, heart rate, pulmonary artery and central venous pressures where a pulmonary artery catheter is present, cardiac output by thermodilution, and lactate).

    Time frame: Continuous monitoring during the cardiac ICU stay, approximately 24 to 72 hours from sensor application

Secondary outcomes

  1. Feasibility: proportion of intended monitoring time with valid sensor data

    Percentage of the intended monitoring period during which each sensor provided valid StO2 and PPG data, per sensor site, including data recovered from onboard memory after wireless transmission gaps.

    Time frame: Continuous monitoring during the cardiac ICU stay, approximately 24 to 72 hours from sensor application

  2. Patient tolerance: device-related adverse events and device deficiencies

    Number and percentage of participants with adverse events, adverse device effects (including skin irritation or redness at the adhesive site), and device deficiencies, and number of participants requesting early sensor removal.

    Time frame: From enrollment through sensor removal, approximately 24 to 72 hours

  3. Association between NIRSense measurement trends and change in SCAI shock stage

    Change in NIRSense measurements (StO2, StO2 variability, perfusion index, stroke volume) relative to the time of clinically documented change in SCAI shock stage, including the lead time between the first sustained change in device metrics and the clinically recognized deterioration.

    Time frame: Continuous monitoring during the cardiac ICU stay, approximately 24 to 72 hours from sensor application

  4. Distribution of NIRSense measurements by SCAI shock stage

    Summary statistics of StO2, perfusion index, and ICG-derived stroke volume at each sensor site by SCAI shock stage (B, C, D, E), to inform development of a predictive model of shock status.

    Time frame: Continuous monitoring during the cardiac ICU stay, approximately 24 to 72 hours from sensor application

Other outcomes

  1. Clinical staff usability feedback

    Responses to a paper survey completed by study staff (principal investigator, nurses, residents, and others involved in the study) on their experience using the sensor system.

    Time frame: After the device has been used on 5 patients (approximately 1 to 6 months after first enrollment)

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jun 2025 (actual). Primary completion is estimated for Jan 2027, 19 months after the start.

Of 84 observational studies under Shock, Cardiogenic, half reached primary completion within 45 months of starting (the median), counting those still running; a quarter within 24. This study's planned 19 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 13, 2026
First posted
Sep 17, 2026
StartActual
Jun 17, 2025
Primary completionEst.
Jan 2027
CompletionEst.
Aug 2027
Last update
Sep 17, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07825363
Lead sponsor
NIRSense Inc.
Collaborators
Cleveland Clinic Florida
Responsible party
Sponsor
First posted
Sep 17, 2026
Start date
Jun 17, 2025
Primary completion
Jan 2027 (estimated)
Completion
Aug 2027 (estimated)
Last update
Sep 17, 2026

Study contacts

Thibault Roumengous, PhD
Contact
thibault@nirsense.com
804-625-1135
David A. Baran, MD
principal investigator · Cleveland Clinic Florida
Thibault Roumengous, PhD
study director · NIRSense Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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