NCT02392247

Brief Summary

This study compares the results of current standard coagulation measurement devices to the Quantra System, a new device, using small amount of extra blood obtained during routine blood draws in cardiac surgery patients.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
52

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2015

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 12, 2015

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 18, 2015

Completed
14 days until next milestone

Study Start

First participant enrolled

April 1, 2015

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2015

Completed
11 months until next milestone

Results Posted

Study results publicly available

July 12, 2016

Completed
Last Updated

July 12, 2016

Status Verified

June 1, 2016

Enrollment Period

5 months

First QC Date

March 12, 2015

Results QC Date

February 25, 2016

Last Update Submit

June 1, 2016

Conditions

Outcome Measures

Primary Outcomes (2)

  • Clot Time

    Coagulation Function assessed at 4 time points \[baseline, during bypass, 10 minutes after heparin reversal just prior to bypass weaning, and off-bypass before transfer to the ICU\] over the course of cardiac surgery until patient ICU transfer

    1 day

  • Clot Stiffness

    Coagulation Function assessed at 4 time points (baseline, during bypass, 10 minutes after heparin reversal just prior to bypass weaning, and off-bypass before transfer to the ICU) over the course of cardiac surgery and bypass until patient ICU transfer

    1 day

Study Arms (1)

Cardiac Surgery Patients

Single cohort of 50 consecutive cardiac surgery patients undergoing cardiopulmonary bypass. The study compares output of two technologies for determination of point of care coagulation function: thromboelastography (TEG; current care option) and the new technology Sonic Estimation of Elasticity via Resonance (SEER) Sonorheometry

Device: Coagulation function

Interventions

Coagulation function assessment tools TEG (standard of practice) vs SEER Quantra (novel coagulation function device)

Cardiac Surgery Patients

Eligibility Criteria

Age18 Years - 89 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants for this study will be recruited at the Virginia Commonwealth University Medical Center. The subject population will be representative of the local racial and ethnic population.

You may qualify if:

  • Subject is scheduled for cardiac surgery involving bypass circuit
  • Subject is older than 18 years
  • Subject is willing to participate and he/she has signed a consent form

You may not qualify if:

  • Subject is unable to provide written informed consent
  • Subject is incarcerated at the time of the study
  • Subject is affected by any condition that, in the opinion of the surgical team, may pose additional risks
  • Patients on emergency cases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Virginia Commonwealth University

Richmond, Virginia, 23298, United States

Location

Limitations and Caveats

This is a descriptive, single-cohort study, not an hypothesis-testing trial. The objective was device performance comparison. As there is no gold standard technology, this study could not determine which method was 'best' or 'superior'.

Results Point of Contact

Title
Dr.Bruce Spiess, Principal Investigator
Organization
Virginia Commonwealth University

Study Officials

  • Bruce Speiss, M.D.

    Virginia Commonwealth University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
observational
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 12, 2015

First Posted

March 18, 2015

Study Start

April 1, 2015

Primary Completion

September 1, 2015

Study Completion

September 1, 2015

Last Updated

July 12, 2016

Results First Posted

July 12, 2016

Record last verified: 2016-06

Data Sharing

IPD Sharing
Will not share

Locations