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Post Operative HemorrhageNCT04388722

Monitoring Noninvasively for Infusion and Transfusion Optimization

A study testing Pulse CO-Oximeter Sensor in people with Post Operative Hemorrhage and Transfusion Related Complication, run by Masimo Corporation.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This is a multicenter, cluster randomized controlled trial to assess the effects of an optimized intraoperative fluid and blood management strategy on postoperative complications. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Pulse CO-Oximeter Sensor
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
1 Jun 2020to 1 Dec 2020
Phase
Interventional
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 18 years or older at the time of consent.
  • Ability to provide written informed consent.
  • Scheduled for non-urgent major surgery with general anesthesia
  • At least one finger available and accessible for performing non-invasive pleth variability index (PVi) and hemoglobin (SpHb) monitoring.
  • The Attending surgeon, attending anesthesiologist and the clinical care team agree with enrollment in the study, including the restrictions on monitoring procedures defined in the control group.

Who cannot join

  • Untreated or uncontrolled hypertension defined as mean arterial pressure (MAP) greater than 120 mmHg, despite medications.
  • Chronic kidney disease with glomerular filtration rate <30 ml/min/1.73 m2 or requiring renal-replacement therapy for end-stage renal disease.
  • Surgeries where no bleeding is expected to occur (i.e., total knee surgery where blood loss is prevented by use of tourniquet).
  • Surgeries performed in the prone position.
  • Acute cardiovascular event, including acute or decompensated heart failure and acute coronary syndrome.
  • Aortic pathology that could lead to misinterpretation of hemodynamic variables (e.g. intra- aortic balloon pump, thoracic aorta aneurysm).
Show all 19Show fewer
  • Renal vascular surgery.
  • Preoperative sepsis.
  • Circulatory shock.
  • Preoperative vasoactive substance infusion before study entry.
  • Concurrent participation in any interventional study.
  • Pregnant or lactating women.
  • Patients who refuse to receive blood transfusion(s).
  • Patients with Do Not Resuscitate (DNR) orders.
  • Open chest surgeries.
  • Prisoners
  • Patients for whom monitoring of CO, SV, PPV, and/or SVV to guide GDT or similar intra-operative fluid management, including continuous SpHb monitoring, would be standard of care.
  • Patients have skin abnormalities affecting the digits such as psoriasis, eczema, angioma, scar tissue, burn, fungal infection, substantial skin breakdown, nail polish or acrylic nails that would prevent the proper fit and application of the sensors.
  • Cardio-pulmonary bypass (CPB) surgery.

About this study

Official title: Monitoring Noninvasively for Infusion and Transfusion Optimization in a Randomized (MONITOR) Trial

This is a multicenter, cluster randomized controlled trial to assess the effects of an optimized intraoperative fluid and blood management strategy on postoperative complications.

Being tested
Pulse CO-Oximeter Sensor
Medical subject headings
Postoperative Hemorrhage, Transfusion Reaction, Hypovolemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Pulse CO-Oximeter SensorDevice

    Investigational Pulse CO-Oximeter sensor will measure hemoglobin (SpHb) and pleth variability index (PVi).

Study groups in NCT04388722
Study groupRoleWhat they receive
Control ArmNo interventionNot described
Investigational ArmExperimentalNot described
Receives: Device: Pulse CO-Oximeter Sensor

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Post-operative complication

    Occurrence of at least one post-operative complication by day 7 after surgery.

    Measured: 7 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 May 2020
  2. Study start1 Jun 2020 (estimated)
  3. Primary completion1 Dec 2020 (estimated)
  4. Study completion1 Dec 2020 (estimated)

Why it stopped: Sponsor's decision to withdraw study.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04388722
Sponsor's protocol ID
MONITOR
Status last verified
Jul 2021
First submitted
12 May 2020
Last updated
23 Jul 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Pulse CO-Oximeter Sensor in people with Post Operative Hemorrhage and Transfusion Related Complication, run by Masimo Corporation.

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 5 inclusion and 19 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: withdrawn, as of the sponsor's last update on 23 Jul 2021. Status can change between updates, so confirm with the study contact before making plans.

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 was withdrawn before enrolling participants, so there are no results.

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?

Post-operative complication (time frame: 7 days). 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 23 Jul 2021.

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