Li-Hep vs. Non-Li-Hep Coated Transfer Device

June 9, 2022 updated by: Braim Rahel, VieCuri Medical Centre

Sample Comparison With Siemens® Point-of-care Device for Cardiac Troponin I Assay by Using a Heparin Coated Transfer Device vs. Non-heparin Coated Transfer Device at the Emergency Department (Validation Study 2.0)

This study is a prospective, diagnostic, cohort study within the standard care of acute coronary syndrome (ACS) patients. It compares the analytical performance of Siemens® point-of-care high sensitive troponin I testing in venous, plasma and capillary sample types. The investigators hypothesize that there is a good correlation between the Siemens® POC HS cTnI assay results for the three sample types and that the bias between different POC sample types reduces from ~10% to ≤ 5% when using heparinized transfer device for the capillary sample.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

In September 2019, the validation study 1.0 started, in which the cTnI result of the Siemens POC device on three sample types are compared. Interim analysis of the sample comparison was performed by regression analysis using Passing and Bablock, and calculating the Pearson correlation coefficient.

The Li-hep Plasma vs Li-hep venous blood show a very good correlation of 1.00-1.03 with an R of >0.99, so the results between these sample types can be used interchangeably. For the capillary sample vs the Li-hep sample (both blood and plasma) the slope is 8-12% higher. With a 8-12% higher response, the capillary test results may not be interchangeably used with the other 2 sample types.

It is remarkable that capillary samples give a higher response, since it was anticipated that the result may be slightly lower due to the possible dilution by interstitial fluid. The investigators hypothesize that the presence of the Li-heparin anti-coagulant in the venous draw lead to a slight reduction of the apparent cTnI concentration. By using a heparin coated transfer device for the capillary samples instead of an uncoated transfer device, this hypothesis will be tested.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
70

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Netherlands
    • Limburg
      • Venlo, Limburg, Netherlands, 5912 BL
        • VieCuri Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

All patients presented at our cardiology ED or coronary care unit (CCU) are eligible for inclusion if they are 18 years or older and suspected of having an ACS based on history, examination, ECG and regular troponin results from the central laboratory.

Description

Inclusion Criteria:

  • Age 18 years or older.
  • Referred to cardiac ED with chest pain suspected of ACS; inclusion at arrival (T=0) or one hour after arrival (T=1).
  • Subacute STEMI or NSTEMI patients admitted at the CCU who have an indication for coronary angiography but do not need rescue/emergency PCI.
  • STEMI patients who already underwent rescue/emergency PCI; inclusion post PCI.

Exclusion Criteria:

  • Out of hospital cardiac arrest.
  • Patients with sudden onset tachycardia and a frequency of 110 bpm or higher (supraventricular or ventricular).
  • Patients who are hemodynamically unstable or in which an acute non-coronary diagnosis is suspected, e.g. pulmonary embolism, thoracic aortic dissection etc.
  • Patients recently already admitted for the same set of symptoms at a previous healthcare institution before being transferred to the participating clinical site.
  • Patients not willing or not able to provide informed consent due to their medical condition as judged by the physician.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Chest pain patients

Patients are eligible for participation if they are admitted to:

  • The cardiac emergency department (ED) because of chest pain for ruling out acute coronary syndrome by troponin analysis
  • The Coronary Care Unit (CCU) with a NSTEMI or post-percutaneous coronary intervention (PCI) STEMI.

Troponin analysis will be performed according to standard protocol. From every included patient two capillary blood samples and an extra venous blood sample will be drawn during regularly ordered blood work to evaluate HS cTnI levels obtained with the POC instrument.
Device: Siemens® Point-of-care high sensitive troponin I analyzer
Point-of-care (POC) high sensitive troponin I (HS cTnI) analysis in whole blood, plasma and capillary whole blood with the Siemens® device.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Sample comparison
Time Frame: 30 days

The primary objective is to compare the analytical performance of Siemens® point-of-care high sensitive troponin I testing in different sample types by using the coefficient of variation.

This comparison will comprise Siemens® POC capillary vs. Siemens® POC venipuncture and vs. Siemens® POC plasma (Sample comparison).

The primary objective will be achieved by taking:

  • Two capillary samples > one sample with a heparin coated transfer device (drawn from a finger of the right hand) and the other one with a non-heparin coated transfer device. (drawn from a finger of the left hand)
  • One extra venous blood sample > for POC venous and POC plasma analysis.

Trained clinical staff will collect the different samples. All samples will be collected once, at one time point with a maximum of 10 minutes in between.
30 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Major adverse cardiac event (MACE)
Time Frame: 30 days
MACE is is defined as a composite of cardiac death and myocardial infarction.
30 days
Overview baseline characteristics.
Time Frame: 30 days
To create an overview of baseline characteristics of the population.
30 days
Bland-Altman method
Time Frame: 30 days
To compare the analytical performance of Siemens® point-of-care high sensitive troponin I testing in different sample types by using the Bland-Altman method.
30 days
Linear regression and Pearson's correlation.
Time Frame: 30 days
The relationship between POC sample types by linear regression and Pearson's correlation.
30 days
Modified HEART score
Time Frame: 30 days
To determine the modified HEART score retrospectively based upon POC capillary results in the population.
30 days
Modified HEART score comparison
Time Frame: 30 days
To compare the retrospectively determined modified HEART score based upon POC capillary heparin coated transfer device with the retrospectively determined modified HEART score based upon POC capillary non-heparin coated transfer device.
30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
VieCuri Medical Centre

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Siemens Corporation, Corporate Technology

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Braim Rahel, Dr., Viecuri Medical Centre

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 18, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 19, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 30, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 2, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 7, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 10, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 9, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Study number 580
  • METCZ20200008 (Other Identifier: Medical ethical committee)
  • NL72445.096.20 (Other Identifier: ToetsingOnline ID/CCMO ID)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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