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Safety and Efficiency Study of Loading Dose Atorvastatin in Cardiac Surgery

24. juli 2013 opdateret af: Shan Zhou, Peking Union Medical College

Anti-inflammatory and Renoprotective Effect of Pretreatment Loading Dose Atorvastatin in CABG

Statins were reported to have pleiotropic effects including antiinflammatory, anti-oxidative stress effects and stabilise plaque in some conditions. Some researches indicate loading dose statin can reduce contrast induced nephropathy, and the levels of inflammatory markers were significantly decreased. The investigators hypothesis loading dose atorvastatin may attenuate inflammatory response during cardiopulmonary bypass (CPB) and therefore reduce postoperative acute kidney injury in cardiac surgery.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Acute kidney injury occurs up to 30% in cardiac surgery which influenced patients' mid-term and long-term outcomes. Furthermore, evidence shows patients who initiate renal placement therapy in hospital have higher mortality and morbility. The pathologies of Cardiac surgery-associated acute kidney injury (CSA-AKI) is not clear yet ,many researches find cardiopulmonary bypass is an independent risk factor in developing AKI, and inflammatory bursts during cardiopulmonary bypass (CPB) may play an important role in CSA-AKI.

Statins are reported to have anti-inflammatory reaction in many researches. In Some multicenter RCTS, Statins are reported to reduce myocardial infarction,atrial fibrillation and have renoprotective effects due to pleiotropic effects in percutaneous coronary intervention. While in the cardiac surgery settings, the renoprotective effect of statin is still controversial. The investigators believe the differences between surgery and PCI may contribute to the discrepancy. The investigators plan to test the renoprotective effect of atorvastatin in a randomized,double-blind control manner and try to explore the mechanism of this protective effect.

The investigators hypothesise loading dose atorvastatin pretreatment in elective coronary artery bypass grafting surgery may attenuate inflammatory response in CPB and therefore reduce postoperative AKI or help recovery from AKI.

The investigators randomize patients into two arms, the Atorvastatin group takes Atorvastatin 80mg 12h before surgery with another 40mg 2h before operation, the control arm takes placebo in the same regime. The investigators plan to compare the inflammatory cytokines at different time points and the incidence of AKI between the two groups. The investigators hope Atorvastatin group can decrease AKI incidence and has a lower level of inflammatory cytokines, what's more, the two have a good correlation in the time frame.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

96

Fase

  • Ikke anvendelig

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, 100037
        • Cardiovascular Institute&Fuwai 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

Beskrivelse

Inclusion Criteria:

  • age > 18 years old
  • elective coronary artery bypass surgery in CPB

Exclusion Criteria:

  • emergent surgery
  • re-operation
  • acute kidney dysfunction
  • chronic kidney disease
  • GFR < 60ml/min
  • liver dysfunction
  • existing myopathy
  • LEVF < 40%
  • statin allergic or contradictive
  • pregnancy
  • breast feed period

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Atorvastatin
participants take 80mg Atorvastatin orally 12h before surgery with another 40mg 2h before surgery
Medicin: Atorvastatin(Lipitor)
participants take 80mg Atorvastatin orally 12h before surgery with another 40mg 2h before surgery
Andre navne:
  • Lipitor
Placebo komparator: Control
Participants randomized to Control arm take 80mg placebo 12h before surgery with another 40mg 2h before surgery
Medicin: Placebo
Participants randomized to Control arm take 80mg placebo 12h before surgery with another 40mg 2h before surgery

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
acute kidney injury
Tidsramme: 72 hours after surgery
Proportion developing AKI using AKIN criteria(stage 1,stage 2, stage3).we plan to measure serum creatinine in baseline, ICU admission,postoperative 6h、Day 1、Day 2 and Day 3.If multiple SCr was measured in one day ,then the highest value will be recorded.Also, we measure creatinine clearance via Cock-croft-Gault formula.
72 hours after surgery

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change of inflammatory biomarkers
Tidsramme: 48h after surgery
we plan to measure IL-6,IL-10,TNF-α and hsCRP at 6 time points: before surgery、after chest closure、postOp.6h、12h、24h and 48h.Compare levels of cytokines between the two arms
48h after surgery
Requirement of renal replacement therapy
Tidsramme: participants will be followed for the duration of hospital stay , an expected average of 2 weeks
proportion need renal replacement therapy in hospital
participants will be followed for the duration of hospital stay , an expected average of 2 weeks
liver function
Tidsramme: participants will be followed for the duration of hospital stay , an expected average of 2 weeks
liver dysfunction defined as transaminase>3UNL normal level
participants will be followed for the duration of hospital stay , an expected average of 2 weeks
death
Tidsramme: 30 days after discharge from hospital
30 days after discharge from hospital
MACCE events
Tidsramme: 30 days after discharge from hospital
30 days after discharge from hospital
length of stay in intensive care unit
Tidsramme: From admission to discharge from ICU
An average of 2 days
From admission to discharge from ICU
length of stay in hospital after surgery
Tidsramme: From surgery to discharge from hospital, an expected average of 7 days
From surgery to discharge from hospital, an expected average of 7 days

Samarbejdspartnere og efterforskere

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

Sponsor

Peking Union Medical College

Samarbejdspartnere

Chinese Academy of Medical Sciences, Fuwai Hospital

Efterforskere

  • Ledende efterforsker: Weipeng Wang, MD,PhD, Chinese Academy of Medical Sciences, Fuwai 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. april 2012

Primær færdiggørelse (Faktiske)

1. juli 2013

Studieafslutning (Faktiske)

1. juli 2013

Datoer for studieregistrering

Først indsendt

26. februar 2012

Først indsendt, der opfyldte QC-kriterier

2. marts 2012

Først opslået (Skøn)

7. marts 2012

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

25. juli 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. juli 2013

Sidst verificeret

1. juli 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2011-1002-007

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Kliniske forsøg med Akut nyreskade

Kliniske forsøg med Atorvastatin(Lipitor)

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Betingelser

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Placeringer

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