- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT00830193
N-Acetylcysteine in Critically Ill Patients Undergoing Contrast Enhanced Computed Tomography
N-Acetylcysteine in Critically Ill Patients Undergoing Contrast Enhanced Computed Tomography: A Randomized Trial
Přehled studie
Postavení
Intervence / Léčba
Detailní popis
Potential participants were identified by staff intensivists or resident physicians following admission to participating ICUs. We included critically ill adult patients at least 18 years of age who consented to participate in the trial, had central venous access and a foley catheter, required a contrast-enhanced CT of any organ system(s), and were considered 'at risk' for the development of CIN. We defined 'at risk' to include patients with at least one of the following at the time of randomization (i) a serum creatinine of > 106 µmol/L and or urea > 6 mmol/L, (ii) urine output of < 0.5 cc/kg over > 4 hrs or (iii) an increase in serum creatinine of > 50 µmol/L in < 24 hours. We stratified based on the presence or absence of diabetes defined as a history of treatment with oral hypoglycemics or insulin.
We excluded patients with a (i) CK > 5,000 or the presence of myoglobinuria, (ii) a known allergy or hypersensitivity reaction to radiographic contrast dye or NAC, (iii) serious illness with imminent threat of dying (low likelihood of survival within 48-hours) or poor prognosis, (iv) pregnancy, (v) patients with cardiogenic shock (NYHA class 3 or 4 symptoms), (vi) known or suspected nephritic, nephrotic or pulmonary-renal syndromes, (vii) a post renal etiology of renal impairment, (viii) previous renal transplant, (ix) known solitary kidney, (x) serum creatinine > 200 µmol/L or (xi) recent exposure to radiographic contrast within 14 days of randomization.
The primary outcome for the study was the development of CIN defined as a rise in serum creatinine of > 50 µmol/L from the time of randomization up to day 5 following contrast exposure.
Secondary outcomes included ICU and hospital length of stay, ICU and hospital mortality and the requirement for renal replacement therapy. We recorded compliance with assigned treatment and assessed for development of severe unexpected adverse events defined as hypotension, bronchospasm and anaphylactic reactions.
Typ studie
Zápis (Aktuální)
Fáze
- Fáze 2
- Fáze 3
Kontakty a umístění
Studijní místa
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Ontario
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London, Ontario, Kanada, N6A 4G5
- London Health Sciences Centre - Victoria Hospital
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London, Ontario, Kanada, N6A 5A5
- London Health Sciences Centre - University Hospital Campus
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
Přijímá zdravé dobrovolníky
Pohlaví způsobilá ke studiu
Popis
Inclusion Criteria:
- The investigators included critically ill adult patients at least 18 years of age who consented to participate in the trial, had central venous access and a foley catheter, required a contrast-enhanced CT of any organ system(s), and were considered 'at risk' for the development of CIN.
- The investigators defined 'at risk' to include patients with at least one of the following at the time of randomization (i) a serum creatinine of > 106 µmol/L and or urea > 6 mmol/L, (ii) urine output of < 0.5 cc/kg over > 4 hrs or (iii) an increase in serum creatinine of > 50 µmol/L in < 24 hours.
Exclusion Criteria:
The investigators excluded patients with a
- CK > 5,000 or the presence of myoglobinuria
- a known allergy or hypersensitivity reaction to radiographic contrast dye or NAC
- serious illness with imminent threat of dying (low likelihood of survival within 48-hours) or poor prognosis
- pregnancy
- patients with cardiogenic shock (NYHA class 3 or 4 symptoms)
- known or suspected nephritic, nephrotic or pulmonary-renal syndromes
- a post renal etiology of renal impairment
- previous renal transplant
- known solitary kidney
- serum creatinine > 200 µmol/L or (xi) recent exposure to radiographic contrast within 14 days of randomization.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Prevence
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Čtyřnásobek
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
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Aktivní komparátor: N-acetylcysteine
Intravenous fluid administration was administered as soon as possible following randomization (not to exceed 12 hours prior to anticipated contrast exposure) and continued for 12 hours post CT.
Patients randomized to the experimental arm received intravenous normal saline plus NAC 10 grams IV (5 g pre and 2.5 g at 6 and 12 hours post-exposure) for a total of 3 doses.
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Medication packages were prepared and dispensed by pharmacy and included three premixed and prepackaged minibags containing either 5 g of NAC or placebo in 100 cc D5W (pre-CT dose) or 2.5 g of NAC or placebo in 50 cc D5W (post-CT doses).
Ostatní jména:
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Komparátor placeba: Placebo
Intravenous fluid administration was administered as soon as possible following randomization (not to exceed 12 hours prior to anticipated contrast exposure) and continued for 12 hours post CT.
Medication packages were prepared and dispensed by pharmacy and included three premixed and prepackaged minibags containing either 5 g in 100 cc D5W (pre-CT dose) or 2.5 g in 50 cc D5W (post-CT doses).
The placebo was D5W and was colour and consistency matched by pharmacy.
Patients randomized to placebo received intravenous normal saline plus 3 doses of placebo.
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Medication packages were prepared and dispensed by pharmacy and included three premixed and prepackaged minibags containing either 5 g of NAC or placebo (D5W) in 100 cc D5W (pre-CT dose) or 2.5 g NAC or placebo in 50 cc D5W (post-CT doses).
Ostatní jména:
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Časové okno |
|---|---|
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The primary outcome for the study was the development of CIN defined as a rise in serum creatinine of > 50 µmol/L from the time of randomization up to day 5 following contrast exposure.
Časové okno: 5 days
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5 days
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Sekundární výstupní opatření
Měření výsledku |
Časové okno |
|---|---|
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ICU length of stay
Časové okno: ICU stay
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ICU stay
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Hospital length of stay
Časové okno: Hospital stay
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Hospital stay
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Úmrtnost na JIP
Časové okno: Pobyt na JIP
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Pobyt na JIP
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Hospital Mortality
Časové okno: Hospital stay
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Hospital stay
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Requirement for Renal Replacement Therapy
Časové okno: ICU
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ICU
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Spolupracovníci a vyšetřovatelé
Sponzor
Vyšetřovatelé
- Ředitel studie: Claudio M Martin, MD, FRCPC, MSc, London Health Sciences Centre - Victoria Hospital
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia
Primární dokončení (Aktuální)
Dokončení studie (Aktuální)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Odhad)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Odhad)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Další relevantní podmínky MeSH
- Patologické procesy
- Urologická onemocnění
- Atributy nemoci
- Onemocnění ledvin
- Závažné onemocnění
- Fyziologické účinky léků
- Molekulární mechanismy farmakologického působení
- Antiinfekční látky
- Antivirová činidla
- Ochranné prostředky
- Agenti dýchacího systému
- Antioxidanty
- Protijedy
- Free Radical Scavengers
- Expektoranti
- Acetylcystein
- N-monoacetylcystin
Další identifikační čísla studie
- LHRI-000001
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