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Cardiac DeathNCT02097602

Correlation Between Reticulated Platelets and Major Adverse Cardiac and Cerebrovascular Events After Noncardiac Surgery

An observational study of Cardiac Death and Congestive Heart Failure, run by Technical University of Munich at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is an observational study designed to monitor the course of the fraction of reticulated platelets and the correlation thereof to major adverse cardiac and cerebrovascular events after noncardiac surgery. Read more about this study

Who is it for?
Ages 18 years and older
How many people
1,000 participants
Where
1 siteGermany
Study dates
Feb 2014to Jan 2015
Phase
Observational
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

Study population: High-risk or intermediate-risk surgical patients older than 18 years undergoing noncardiac surgery

Who may be able to join

  • high-risk or intermediate-risk surgical patients undergoing noncardiac surgery
  • age ≥ 18 years
  • written informed consent

Who cannot join

  • low-risk surgery
  • age < 18 years

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Klinik für Anaesthesiologie, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Str. 22

    Munich, 81675

Other trials in Germany

About this study

Official title: Can Reticulated Platelets Predict the Outcome After Noncardiac Surgery?

This is an observational study designed to monitor the course of the fraction of reticulated platelets and the correlation thereof to major adverse cardiac and cerebrovascular events after noncardiac surgery.

Read the detailed description

Reticulated platelets (RP) are newly formed, immature platelets which in contrast to mature platelets have high granule content and a residual amount of mRNA. An increased mean platelet volume (MPV) and the fraction of RP have been shown to be correlated to cardiovascular events like myocardial infarction or cardiovascular death. However, there are no trials so far investigating how surgery impacts the fraction of RP and how this fraction correlates with the outcome after noncardiac surgery.

Patients with an age above 18 years undergoing high-risk or intermediate-risk noncardiac surgery are to be included. The fraction of RP is to be investigated in routinely acquired blood samples preoperatively, postoperatively in the recovery room, as well as 24-72 hours after anaesthesia and surgery.

A primary common endpoint are major adverse cardiac and cerebrovascular events (MACCEs), as well as deep vein thrombosis and pulmonary embolism. MACCEs are defined according to Sabaté et al. as: cardiac death, cerebrovascular death, nonfatal cardiac arrest, acute myocardial infarction, congestive heart failure, new cardiac arrhythmia, angina or stroke. Secondary endpoints are lengths of hospital stay and intensive care stay as well as mortality after 3 months. All participants are to be contacted by phone three months after discharge and their health situation is to be determined.

1000 patients will be enrolled in a defined time frame of six months

Keywords
Reticulated platelets, noncardiac surgery, MACCEs, major adverse cardiac and cerebrovascular events, outcome, High-risk or intermediate-risk noncardiac surgery
Medical subject headings
Death, Heart Failure, Angina Pectoris, Stroke, Pulmonary Embolism, Venous Thrombosis

What is being measured

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

  1. major adverse cardiac and cerebrovascular events (MACCEs)

    MACCEs are defined according to Sabaté et al. as: cardiac death, cerebrovascular death, nonfatal cardiac arrest, acute myocardial infarction, congestive heart failure, new cardiac arrhythmia, angina or stroke. Pulmonary embolism and deep vein thrombosis are further primary endpoints.

    Measured: during the hospital stay, an expected average of 2 weeks

Secondary outcomes (2)
  1. Mortality

    mortality

    Measured: three months after discharge

  2. length of hospital and intensive care-stay

    length of hospital and intensive care-stay

    Measured: three months after discharge

Timeline

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

  1. First posted27 Mar 2014 (estimated)
  2. Study startFeb 2014
  3. Primary completionSep 2014
  4. Study completionJan 2015

Resources

More details

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

Study design
Study type
Observational
Time perspective
Prospective
Enrolment
1,000 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02097602
Sponsor's protocol ID
RePOS
Status last verified
Mar 2015
First submitted
17 Mar 2014
Last updated
5 Mar 2015
Results posted
No
Data monitoring committee
Yes

Publications

  • Nakamura T, Uchiyama S, Yamazaki M, Okubo K, Takakuwa Y, Iwata M. Flow cytometric analysis of reticulated platelets in patients with ischemic stroke. Thromb Res. 2002 May 15;106(4-5):171-7. doi: 10.1016/s0049-3848(02)00131-7.

    PubMed 12297121
  • Grove EL, Hvas AM, Kristensen SD. Immature platelets in patients with acute coronary syndromes. Thromb Haemost. 2009 Jan;101(1):151-6.

    PubMed 19132202
  • Cesari F, Marcucci R, Gori AM, Caporale R, Fanelli A, Casola G, Balzi D, Barchielli A, Valente S, Giglioli C, Gensini GF, Abbate R. Reticulated platelets predict cardiovascular death in acute coronary syndrome patients. Insights from the AMI-Florence 2 Study. Thromb Haemost. 2013 May;109(5):846-53. doi: 10.1160/TH12-09-0709. Epub 2013 Mar 14.

    PubMed 23494003
  • Sabate S, Mases A, Guilera N, Canet J, Castillo J, Orrego C, Sabate A, Fita G, Parramon F, Paniagua P, Rodriguez A, Sabate M; ANESCARDIOCAT Group. Incidence and predictors of major perioperative adverse cardiac and cerebrovascular events in non-cardiac surgery. Br J Anaesth. 2011 Dec;107(6):879-90. doi: 10.1093/bja/aer268. Epub 2011 Sep 2.

    PubMed 21890661
  • Anetsberger A, Bernlochner I, Jungwirth B, Blobner M, Meyer B, Kochs EF, Bongiovanni D, Schmid S, Langgartner C, Baumgart L, Gempt J. Association of immature platelets with perioperative complications in neurosurgery. Platelets. 2023 Dec;34(1):2185462. doi: 10.1080/09537104.2023.2185462.

    PubMed 36974887
  • Anetsberger A, Blobner M, Haller B, Schmid S, Umgelter K, Hager T, Langgartner C, Kochs EF, Laugwitz KL, Jungwirth B, Bernlochner I. Immature platelets as a novel biomarker for adverse cardiovascular events in patients after non-cardiac surgery. Thromb Haemost. 2017 Oct 5;117(10):1887-1895. doi: 10.1160/TH16-10-0804. Epub 2017 Aug 10.

    PubMed 28796275

Questions about this trial

What is this clinical trial studying?

An observational study of Cardiac Death and Congestive Heart Failure, run by Technical University of Munich at 1 site in Germany.

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 3 inclusion and 2 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: finished, as of the sponsor's last update on 5 Mar 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

major adverse cardiac and cerebrovascular events (MACCEs) (time frame: during the hospital stay, an expected average of 2 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02097602, which also lists 6 linked publications.

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 5 Mar 2015.

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