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Relevance of Plasma PCSK9 Concentration as a Biomarker in Acute Coronary Syndrome. (PC-SCA-9)

13. september 2021 opdateret af: Nantes University Hospital

PCSK9 (Proprotein convertase subtilisin kexin type 9) plays a key role in LDL-cholesterol (LDLC) metabolism by inhibiting LDL receptor (LDLR) at post-transcriptional level. PCSK9 loss of function mutations are associated to decreased LDLC levels and a cardiovascular protection. In this context, the development of pharmacological inhibitors of PCSK9, in association with statins treatment, represents a major therapeutic issue for LDLC modulation. It was previously shown that PCSK9 plasmatic concentration correlated with plasmatic LDLC, TG and glucose concentrations. However, no data are available on predictive value of PCSK9 plasmatic level concerning coronary disease severity.

The main objective of this study is to determine whether plasmatic PCSK9 concentration is linked to coronary damage severity in patients with acute coronary syndrome.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

175

Kontakter og lokationer

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

Studiesteder

  • Frankrig
      • Nantes, Frankrig, 44093
        • Nantes University Hospital
      • Nantes, Frankrig, 44000
        • Nantes University Hospital

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 og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients of both sexes, 18 years old minimum, with an acute coronary syndrome, treated or not with statins, admitted to cardiological intensive care unit.

Beskrivelse

Inclusion criteria:

  • more than 18 years old
  • Acute coronary syndrome (ST+ or ST-)
  • 2 groups of patients: with statin, and without statin treatment

Exclusion criteria:

  • Patient who had cancer during the last 5 years or with cancer in progress
  • Patient with severe infection in progress
  • Hepatic failure (TP<50%)
  • Severe kidney failure
  • Patient unable to give his consent to the study

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: Andet
  • Tidsperspektiver: Fremadrettet

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
patient treated by statines
Andet: biological parameters dosage

200 patients will be enrolled in the study (n=100 patients under statin treatment, n=100 patients without statin).

After checking inclusion and non-inclusion criteria and obtaining informed consent from the patients. The SYNTAX score will be calculated and will allow to determine coronary analysis will be done at J1 and J4 (glucose, HbA1C, lipids, ApoA1, ApoB, sterols, plasmatic bile acids, insulinemia, creatinin clearance, hepatic function panel, CRPus and PCSK9 level assessment).

Then, a sub-group of 30 patients will have supplementary blood analysis at 1 and 6 months after their admission, during their usual follow-up.
patient without normolipidemic treatment
Andet: biological parameters dosage

200 patients will be enrolled in the study (n=100 patients under statin treatment, n=100 patients without statin).

After checking inclusion and non-inclusion criteria and obtaining informed consent from the patients. The SYNTAX score will be calculated and will allow to determine coronary analysis will be done at J1 and J4 (glucose, HbA1C, lipids, ApoA1, ApoB, sterols, plasmatic bile acids, insulinemia, creatinin clearance, hepatic function panel, CRPus and PCSK9 level assessment).

Then, a sub-group of 30 patients will have supplementary blood analysis at 1 and 6 months after their admission, during their usual follow-up.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Syntax score (for evaluate coronary damages) and plasmatic concentration of PCSK9
Tidsramme: Day 1, Day 2, Day 3, Day 4
Assessing the correlation between plasma concentration of PCSK9 and coronary damage severity in patients with acute coronary syndrome. Coronary lesions will be measured using the SYNTAX score (J0: admission day), and PCSK9 concentration will be evaluated using blood analysis (J0 (admission), J1, J2, J3 & J4).
Day 1, Day 2, Day 3, Day 4

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Correlation between PCSK9 and morbidity/mortality
Tidsramme: Day 1, Day 2, Day 3, Day 4
Assessing the correlation between plasma PCSK9 (J1, J2, J3, J4) concentration and one-year morbidity/mortality of patients with acute coronary syndrome
Day 1, Day 2, Day 3, Day 4
association between PCSK9 and metabolic/inflammatory factors
Tidsramme: Day 1, Day 2, Day 3, Day 4
Identification of metabolic and inflammatory factors (glycemia, insulinemia, HbA1C, CRPus…) associated to plasma PCSK9 concentration
Day 1, Day 2, Day 3, Day 4
kinetic of PCSK9 for statin-treated patients
Tidsramme: Day 1, Day 2, Day 3, Day 4
Measurement of PCSK9 kinetic variation during ACS acute phase in patients treated with artovastatin 80 mg/day (J1, J2, J3, and J4)
Day 1, Day 2, Day 3, Day 4
kinetic of PCSK9 after intensive care
Tidsramme: Day 1, Day 2, Day 3, Day 4
Determination of PCSK9 kinetic variation at 1 and 6 months after intensive care, during their normal follow-up
Day 1, Day 2, Day 3, Day 4

Samarbejdspartnere og efterforskere

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

Sponsor

Nantes University Hospital

Efterforskere

  • Ledende efterforsker: Bertrand Cariou, MD, Nantes University 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 (Faktiske)

13. februar 2011

Primær færdiggørelse (Faktiske)

24. september 2013

Studieafslutning (Faktiske)

16. juli 2015

Datoer for studieregistrering

Først indsendt

20. april 2010

Først indsendt, der opfyldte QC-kriterier

22. april 2010

Først opslået (Skøn)

23. april 2010

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

20. september 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

13. september 2021

Sidst verificeret

1. september 2021

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • BRD/10/03-ZE

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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