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CompletedNCT03988465Updated Jul 1, 2020

HemoSonics - UTMB Cardiac Surgery Study

An observational study in Blood Loss, Surgical, sponsored by HemoSonics LLC. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-07-01.

Sponsored by HemoSonics LLC · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
30
Ages
18 Years and older
Sex
All
01

Study summary

This study will evaluate the performance of the Quantra System comprised of the Quantra Hemostasis Analyzer with the Quantra QPlus Cartridge in patients undergoing cardiac surgery utilizing cardiopulmonary bypass, including the placement of a ventricular access device.

Read the detailed description

The Quantra System is a fully integrated and automated in vitro diagnostic device which uses SEER Sonorheometry, and ultrasound-based technology, to characterize the viscoelastic properties of a whole blood sample during coagulation. The Quantra QPlus Cartridge was developed to monitor hemostasis during major surgical procedures in adult patients. The cartridge consists of four independent channels each containing different sets of reagents, which provide four measurements performed in parallel yielding six parameters that depict the functional status of a patient's coagulation system.

This single-center, prospective, observational study will evaluate the performance of the Quantra System as compared to and comparable measures determined using the TEG 5000.

02

Conditions studied

  • Blood Loss, Surgical

Browse trials for

Keywords

  • Viscoelastic testing
  • Coagulation
  • Quantra
  • Hemostasis
03

In context

Blood Loss, Surgical

218 studies on the registry are indexed under Blood Loss, Surgical; 39 are open to participants now.

This study's enrollment of 30 is below the median of 154 across 49 observational studies indexed under Blood Loss, Surgical.

Browse Blood Loss, Surgical studies →

Lead sponsor

HemoSonics LLC is the lead sponsor of 25 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

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

Study population

The study population includes subjects 18 years or older undergoing cardiac surgery utilizing cardiopulmonary bypass, including placement of a ventricular access device.

Inclusion criteria

  • Subject is ≥ 18 years
  • Subject is scheduled for cardiac surgery utilizing cardiopulmonary bypass, including the placement of a ventricular access device.
  • Subject is willing to participate, and he/she has signed a consent form.

Exclusion criteria

Exclusion Criteria:

  • Subject is younger than 18 years
  • Subject is unable to provide written informed consent
  • Subject is incarcerated at the time of the study
  • Subject is pregnant
  • Subject is currently enrolled in a distinct study that might confound the results of the proposed study
  • Subject is affected by a condition that, in the opinion of the clinical team, may pose additional risks
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
30 participants (actual)
Patient registry
No

Groups and cohorts

  • Cardiac Surgery Patients

    Patients undergoing cardiopulmonary bypass surgery, including placement of a ventricular access device.

    Diagnostic Test: Quantra System

Interventions

  • Diagnostic testQuantra System

    Diagnostic device to monitor coagulation properties of a whole blood sample at the point-of-care.

    Also known as: Quantra QPlus Cartridge

06

What researchers measure

Primary outcomes

  1. Comparison of Quantra Clot Time results to TEG R results

    Coagulation function assessed by Quantra and TEG 5000

    Time frame: Baseline, defined as after induction of anesthesia but before surgical incision

  2. Comparison of Quantra Clot Stiffness results to TEG MA results

    Coagulation function assessed by Quantra and TEG 5000

    Time frame: Baseline, defined as after induction of anesthesia but before surgical incision

  3. Comparison of Quantra Clot Time results to TEG R results

    Coagulation function assessed by Quantra and TEG 5000

    Time frame: During bypass

  4. Comparison of Quantra Clot Stiffness results to TEG MA results

    Coagulation function assessed by Quantra and TEG 5000

    Time frame: During bypass

  5. Comparison of Quantra Clot Time results to TEG R results

    Coagulation function assessed by Quantra and TEG 5000

    Time frame: Post-bypass, defined as 10 to 20 minutes after protamine administration

  6. Comparison of Quantra Clot Stiffness results to TEG MA results

    Coagulation function assessed by Quantra and TEG 5000

    Time frame: Post-bypass, defined as 10 to 20 minutes after protamine administration

  7. Comparison of Quantra Clot Time results to standard coagulation test results (aPTT)

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: Baseline, defined as after induction of anesthesia but before surgical incision

  8. Comparison of Quantra Clot Stiffness results to laboratory fibrinogen results

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: Baseline, defined as after induction of anesthesia but before surgical incision

  9. Comparison of Quantra Clot Stiffness results to laboratory-determined platelet count

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: Baseline, defined as after induction of anesthesia but before surgical incision

  10. Comparison of Quantra Clot Time results to standard coagulation test results (aPTT)

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: During bypass

  11. Comparison of Quantra Clot Stiffness results to laboratory fibrinogen results

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: During bypass

  12. Comparison of Quantra Clot Stiffness results to laboratory-determined platelet count

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: During bypass

  13. Comparison of Quantra Clot Time results to standard coagulation test results (aPTT)

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: Post-bypass, defined as 10 to 20 minutes after protamine administration

  14. Comparison of Quantra Clot Stiffness results to laboratory fibrinogen results

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: Post-bypass, 10 to 20 minutes after protamine

  15. Comparison of Quantra Clot Stiffness results to laboratory-determined platelet count

    Coagulation function assessed by Quantra and standard coagulation tests

    Time frame: Post-bypass, defined as 10 to 20 minutes after protamine administration

07

Study locations

1 site
  • University of Texas Medical Branch
    Galveston, Texas 77555, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 1, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03988465
Lead sponsor
HemoSonics LLC
Responsible party
Sponsor
First posted
Jun 17, 2019
Start date
Jun 19, 2019
Primary completion
Mar 13, 2020
Completion
May 15, 2020
Last update
Jul 1, 2020

Oversight

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

Not currently enrolling

This study is completed, as verified in Jun 2020. You cannot join it, but the record below documents what was studied.

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