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Implementing the 6th Generation Cardiac Troponin T

2026年11月10日 更新者:Rasmus Bo Hasselbalch

Implementing the 6th Generation Cardiac Troponin T: A Stepped Wedged Cluster-randomized Trial

This study will test how a new blood test for troponin T can be introduced into routine hospital care in Denmark and Norway. The study will look at whether the new test helps doctors assess and treat patients with possible heart problems more effectively and safely.

研究概览

详细说明

Background Cardiac troponin (cTn) is the key biomarker for diagnosing myocardial infarction (MI). There are two cardiac specific isoforms of cTn, cTnT and cTnI, considered equal in contemporary guidelines. About half of hospitals in Denmark and two thirds of Norwegian providing acute cardiovascular care use cTnT from Roche Diagnostics in routine practice. An improved version of this assay has recently been developed, named the 6th generation cTnT. This novel assay expected to be implemented worldwide within the next years, but there is still limited data comparing it with the previous generation of cTnT. We aim to implement and test the use of the new 6th generation cTnT assay in Danish-Norwegian collaborative, stepped-wedge trial.

Methods This will be a stepped-wedged cluster-randomized implementation study investigating the medical and practical real-life consequences of switching from the 5th to the 6th generation cTnT assay in routine use. All hospitals using cTnT in either Denmark or Norway will be invited to participate in the study. Centers will be randomized to an implementation date. The hospital should switch assay within 1-15 days after the applicable deadline. Following admission, patients will be followed through national registries.

Assay specifics The 6th generation cTnT assay is expected to have a limit of quantification at 1.5 ng/L and an analyti-cal variation of 3% at the 99th upper reference limit. All sites will use the reference values estimated in the assay insert.

Timeline There will be 7 centers in Denmark and 4 centers in Norway in the study. Data collection will begin on the 1st of August 2026 with the first centers expected to switch on the 1st of October 2026. This will mean that the final center will switch on the 1st of August 2027, and the primary results will be available by the end of March 2028. Each laboratory will receive a plan for local analytical verification of the assay.

Collaboration The study is designed and performed as a collaborative effort between Danish and Norwegian re-searchers and led by Kristin Aakre, Rasmus Bo Hasselbalch, Torbjørn Omland and Kasper Iversen. All centers will be invited to participate and contributors fulfilling Vancouver criteria will be invited as authors of any publications. This implementation study will be performed in collaboration with the national societies of clinical biochemistry.

Ethics The project has been presented to the Danish regional ethics committee and is expected to receive a waiver for patient consent in this study. A similar ethical waiver has been given in Norway. The data will follow GDPR guidelines regarding data protection.

Power calculations In a stepped wedge design the period between successive interventions (i.e. stops) is the main design parameter. The study is designed as a primary superiority trial. Given 11 centers and an ex-pected event rate of about 4% and each center including between 200 and 800 patients a month, the study would have above 90% power to show an absolute risk difference of 0.8%. This calcula-tion was performed in collaboration with Professor Theis Lange.

研究类型

介入性

注册 (估计的)

22600

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

研究联系人备份

学习地点

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 孩子
  • 成人
  • 年长者

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Admitted at any of the participating hospitals
  • At least one measurement of cardiac troponin T as a part of routine care in the ED

Exclusion Criteria:

  • Readmission within the study followup

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:诊断
  • 分配:随机化
  • 介入模型:顺序分配
  • 屏蔽:单身的

武器和干预

参与者组/臂
干预/治疗
有源比较器:5th generation cardiac troponin T arm

Treatment is based on the use of the 5th generation troponin T assay

Regular use of the 5th generation troponin T assay

实验性的:6th generation cardiac troponin T arm

Treatment is based on the use of the new 6th generation troponin T assay

The change will be in a stepped-wedge cluster randomised design

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Composite endpoint of death from any cause and MI, or revascularization within 6 months after admission (PCI and CABG).
大体时间:6 months

This will exclude events during the index admission

6 months

次要结果测量

结果测量
措施说明
大体时间
The incidence of fatal and non-fatal MI (I21, I22)
大体时间:At the time of hospital discharge (Day 0)

All events during admission

At the time of hospital discharge (Day 0)
Unstable angina pectoris (I20.0)
大体时间:At the time of hospital discharge (Day 0)

Unstable angina diagnosed during admission

At the time of hospital discharge (Day 0)
Invasive coronary angiography
大体时间:Up to 30 days following discharge

Use of invasive coronary angiography during admission, or planned under index admission

Up to 30 days following discharge
Coronary CT angiography
大体时间:Up to 30 days following discharge

Use of coronary CT angiography during admission or planned at index admission

Up to 30 days following discharge
The length of stay
大体时间:At the time of hospital discharge (Day 0)

The length of stay during index admission

At the time of hospital discharge (Day 0)
Readmissions within 30 days
大体时间:Within 30 days of index admission

The rate of readmission following index admission within 30 days for any cardiovascular cause

Within 30 days of index admission

其他结果措施

结果测量
措施说明
大体时间
Percentage discharged from the hospital within 6 hours
大体时间:At the time of hospital discharge (Day 0)

Percentage discharged from the hospital within 6 hours (if data can be made available)

At the time of hospital discharge (Day 0)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Kristin Aakre, MD, PhD、Haukeland University Hospital
  • 首席研究员:Kasper Iversen, MD, Dmsc、Copenhagen University Hospital - Herlev and Gentofte Hospital

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年8月1日

初级完成 (估计的)

2028年3月31日

研究完成 (估计的)

2028年7月31日

研究注册日期

首次提交

2026年11月4日

首先提交符合 QC 标准的

2026年11月10日

首次发布 (实际的)

2026年11月13日

研究记录更新

最后更新发布 (实际的)

2026年11月13日

上次提交的符合 QC 标准的更新

2026年11月10日

最后验证

2026年11月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

IPD 计划说明

Due to restrictions within Danish and Norwegian law for registry data

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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