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Safety and Efficacy of Fibrinogen Concentrate in Aortic Arch Surgery Involving Moderate Hypothermic Circulatory Arrest (SEFC)

4. september 2015 opdateret af: Hongjia Zhang

Bleeding is a common complication of cardiac surgery, especially aortic arch surgery involving moderate hypothermic circulatory arrest. Fibrinogen concentrate is increasingly used to treat coagulopathic bleeding in cardiac surgery, although its effectiveness and safety are unknown.

Fibrinogen concentrate was administered to 54 patients when the fibrinogen level was below 1.5 g/L after protamine reversal. Additionally, 30 patients were enrolled as the non-FC-treated group.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The aim of this prospective study was to investigate the safety and efficacy of fibrinogen concentrate in patients with acute type A aortic dissection.

Eighty-four acute type A aortic dissection patients undergoing emergency aortic arch surgery involving moderate hypothermic circulatory arrest were included. The clinical data, standard laboratory tests and plasma fibrinogen levels were obtained at 5 time points.

The investigators analyzed the standard laboratory tests, the plasma fibrinogen levels, the volumes of cumulative postoperative drainage and transfused allogenic blood products in 84 patients.

The primary and secondary end points were determined and considered.The primary endpoint (efficacy endpoint) included the volumes of individual allogeneic blood products, volumes of cumulative drainage within 24 h and 48 h and 5 days volumes after infusion of fibrinogen concentrate as well as the rates of reoperation due to bleeding. The secondary endpoint (safety endpoint) for the study was the incidence of serious adverse events from infusion of fibrinogen concentrate to day 45. The serious adverse events defined for the evaluation of safety of fibrinogen concentrate were death, pulmonary embolism and other thromboembolic or ischemic events (myocardial infarction, paraplegia and cerebral infarction).

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

150

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Kina
    • Beijing
      • Beijing, Beijing, Kina, 100029
        • Rekruttering
        • Beijing Anzhen Hospital
        • Kontakt:
          • Hongjia Zhang, M.D.
        • Kontakt:
          • Xinliang Guan

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 70 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • The participants aged 18 years or above who were undergoing emergency aortic arch surgery involving moderate hypothermic circulatory arrest for an acute type A aortic dissection

Exclusion Criteria:

  • The participants with congenital or acquired coagulation disorders, previous surgery at the same site, death prior to planned surgery, stroke or myocardial infarction within 2 months before surgery and use of aspirin, clopidogrel or vitamin K antagonists within 2 to 5 days before surgery.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: fibrinogen concentrate-treated group
The initial fibrinogen concentrate dose was 25 - 50 mg/kg, but additional fibrinogen concentrate was administered repeatedly if the first infusion of fibrinogen concentrate did not increase the fibrinogen level over 2.0 g/L.
Medicin: fibrinogen concentrate
Investigators administered fibrinogen concentrate when the plasma fibrinogen level was below 1.5 g/L at 5 minutes after protamine reversal and completion of surgical hemostasis in patients, who comprised the fibrinogen concentrate-treated group.
Ingen indgriben: non-fibrinogen concentrate-treated group
The participants who did not received fibrinogen concentrate treatment were enrolled as the non-fibrinogen concentrate-treated group

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
efficacy endpoint (the volumes of allogeneic blood products, volumes of cumulative drainage within 24 h and 48 h and 5 days
Tidsramme: from the time of fibrinogen concentrate administration until the 5th postoperative day
Investigators hypothesized that the hemostatic therapy with fibrinogen concentrate in acute type A aortic dissection patients resulted in a reduction in the transfusion of allogeneic blood products and drainage volumes compared to the control group that received conventional hemostatic therapy.
from the time of fibrinogen concentrate administration until the 5th postoperative day

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
safety endpoint (incidence of serious adverse events)
Tidsramme: from infusion of fibrinogen concentrate to day 45
The serious adverse events defined for the evaluation of safety of fibrinogen concentrate were death, pulmonary embolism and other thromboembolic or ischemic events (myocardial infarction, paraplegia and cerebral infarction).
from infusion of fibrinogen concentrate to day 45

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Hongjia Zhang

Samarbejdspartnere

Beijing Anzhen Hospital

Efterforskere

  • Studiestol: Hongjia Zhang, M.D., Beijing Anzhen Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. juli 2013

Primær færdiggørelse (Forventet)

1. august 2016

Studieafslutning (Forventet)

1. august 2016

Datoer for studieregistrering

Først indsendt

25. august 2015

Først indsendt, der opfyldte QC-kriterier

4. september 2015

Først opslået (Skøn)

7. september 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

7. september 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

4. september 2015

Sidst verificeret

1. september 2015

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • Z141100002114025

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