NASPI: N-Acetylcysteine vs. Ascorbic Acid for Prevention of Contrast Induced Nephropathy in Renal Insufficiency Undergoing Coronary Catheterization

Seoul National University Hospital250 enrolled

Overview

The contrast induced nephropathy (CIN) has been known to be associated with significant clinical and economic consequences. Many studies were performed to find the pathophysiology and preventive measures for CIN. But the results were somewhat frustrating. Recently, it has been reported that the N-acetylcysteine and ascorbic acid might have preventive effects for CIN by their antioxidant effects.There have been no study to compare these two antioxidant.

N-acetylcysteine and ascorbic acid may prevent the CIN in the patients with underlying renal insufficiency who is undergoing the coronary angiography. The effect may derive from the antioxidant function of these two antioxidant. We studied to find which of the two antioxidants is more beneficial in prevention of CIN

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

DOUBLE

Enrollment

250

Conditions

Kidney Failure

Interventions

Eligibility

Sex: ALLMin age: 19 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Stable Angina pectoris patients * Patients who required the coronary catheterization * Creatinine clearance rates =\<60 mL/min using the Cockcroft-Gault formula * Age of 19 or over 19 Exclusion Criteria: * Pregnancy * Lactation * Having received contrast media within 7 days of study entry * Emergent coronary angiography * Acute renal failure * End-stage renal disease requiring dialysis * History of hypersensitivity reaction to contrast media * Cardiogenic shock * Pulmonary edema * Multiple myeloma * Mechanical ventilation * Parenteral use of diuretics * Recent use of N-acetylcysteine * Recent use of Ascorbic acid * Recent use of statin * Use of metformin or nonsteroidal anti-inflammatory drugs within 48 hours of the procedure.

Outcomes

Primary Outcomes

The mean peak increase of serum creatinine concentration during day1 and day2.

Secondary Outcomes

Incidence of contrast induced nephropathy, defined as either a relative increase in serum creatinine

from baseline of >=25% or an absolute increase of >=0.5mg/dL(44.2µmol/L) during days 1 and 2.

Proportion of patients exhibiting an increase in serum creatinine of >=0.5mg/dL(44.2µmol/L)

proportion with a >=1.0 mg/dL(88.4µmol/L) increase in serum creatinine;