Hemodynamic Change of Coronary Atherosclerotic Plaque After Evolocumab Treatment
19. april 2021 opdateret af: Zibo Central Hospital
Hemodynamic Change of Coronary Atherosclerotic Plaque After Evolocumab Treatment: A Serial Follow-Up Study by Computed Tomography-Derived Fractional Flow Reserve
Compelling evidences indicate that lipid-lowering therapy can reduce the high-risk plaque feathers and improve the coronary flow reserve.
This study is going to investigate the change of lesion-specific hemodynamic significance as determined by ML(Machine Learning)-based CT-FFR (Computed Tomography-Fractional Flow Reserve)after Evolocumab treatment.
Studieoversigt
Status
Ukendt
Betingelser
Undersøgelsestype
Observationel
Tilmelding (Forventet)
200
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
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Shandong
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Zibo, Shandong, Kina, 255036
- Zibo Central Hospital
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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 85 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Sandsynlighedsprøve
Studiebefolkning
A total of 200 eligible coronary atherosclerosis disease patients were anticipated to include in this study.
Beskrivelse
Inclusion Criteria:
- 1.baseline CCTA revealed at least one lesion with stenotic extent from 50% to 69% on major epicardial arteries (diameter ≧2 mm);
- 2.patients were referred for optimal medical treatment;
- 3.patients agreed to undergo follow-up CCTA at 1-year interval.
Exclusion Criteria:
- 1.patients had previous history of myocardial infarction or coronary revascularization;
- 2.patients were contraindicated to the usage of iodine contrast media;
- 3.image quality of baseline or follow-up CCTA was severely impaired (in presence of severe artifact, non-diagnostic);
- 4.patients withdrew the informed consents during follow-up;
- 5.patients experienced major adverse cardiac events during follow-up;
- 6.patients refused to undergo follow-up CCTA;
- 7.lost follow-up
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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Enrolled Cohort
200 selected patients will be recruited, who have diagnosed with coronary atherosclerosis disease(stenotic extent from 50% to 69% on major epicardial arteries) by coronary computed tomography angiography(CCTA).
Every two weeks, these patients will be treated with Elococumab Injection (1ml:140mg),ih.This therapy will last for one year.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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the change of lesion-specific CT-FFR
Tidsramme: June 2020 to December 2021
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After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again.
We will measure the proximal and distal CT-FFR for each lesion.At the same time ,we will calculated the change in CT-FFR value across the lesion(ΔCT-FFR=CT-FFRproximal-CT-FFRdistal).To compare the parameters above,we shall identify whether the treatment of Elovocumab Injection improves the lesion-specific CT-FFR.
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June 2020 to December 2021
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Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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the change of minimal lumen diameter between baseline and follow-up CCTA
Tidsramme: June 2020 to December 2021
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After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again.
We will measure the minimal lumen diameter for each lesion.
Minimal lumen diameter will be manually measured with a digital caliper at the narrowest level of the lesion using the crosssectional images accroding to the CCTA findings.
The results of the minimal lumen diameter at baseline will be compared with results obtained during follow-up to examine the effects of Elovocumab Injection therapy.
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June 2020 to December 2021
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the change of total plaque volume (TPV) between baseline and follow-up CCTA
Tidsramme: June 2020 to December 2021
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After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again.
We will measure TPV for each lesion.
Total plaque volume will be automatically measured using the dedicated plaque analysis software.
The results of TPV at baseline will be compared with results obtained during follow-up to examine the effects of Elovocumab Injection therapy.
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June 2020 to December 2021
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the change of lesion length between baseline and follow-up CCTA
Tidsramme: June 2020 to December 2021
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After one year's treatment of Elovocumab Injection, the patients will undergo follow-up CCTA again.
The length of lesion at baseline will be compared with results obtained during follow-up to examine the effects of Elovocumab Injection therapy.
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June 2020 to December 2021
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Bo Li, Doctor, Zibo Central 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 (Forventet)
30. juli 2021
Primær færdiggørelse (Forventet)
31. december 2022
Studieafslutning (Forventet)
27. februar 2023
Datoer for studieregistrering
Først indsendt
30. maj 2020
Først indsendt, der opfyldte QC-kriterier
3. juni 2020
Først opslået (Faktiske)
4. juni 2020
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
21. april 2021
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
19. april 2021
Sidst verificeret
1. maj 2020
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- ZiboCH
Plan for individuelle deltagerdata (IPD)
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