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A Prospective, Randomized TrialComparing Oral N-Acetylcysteine and Intravenous Sodium Bicarbonate

A Prospective, Randomized Trial Comparing Oral N-Acetylcysteine and Intravenous Sodium Bicarbonate for the Prevention of Contrast-Induced Nephropathy in High-Risk Patients Undergoing Cardiac Catheterization

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00579995
Acronym
PROTECt
Enrollment
41
Registered
2007-12-24
Start date
2005-05-01
Completion date
2010-04-08
Last updated
2023-09-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nephropathy

Keywords

contrast induced nephropathy

Brief summary

The purpose of this study is to compare the efficacy of oral N-acetylcysteine and intravenous sodium bicarbonate for the prevention of Contrast-Induced Nephropathy (CIN) after cardiac catheterization.

Detailed description

It is thought that N-acetylcysteine may reduce the ability of generated oxygen free radicals to damage cells by scavenging them. N-acetylcysteine may also increase the biologic effects of nitric oxide by combining with nitric oxide to form S-nitrosothiol, a more stable form and potent vasodilator. It also increases the expression of nitric oxide synthesis and may improve blood flow. Oxidants activate a signal-transduction cascade and molecular response that may initiate the cell-death pathway. These pathways seem to be sensitive to the redox state of the cell and are inhibited by N-acetylcysteine, which promotes pathways that lead to repair and survival whenever cells are under oxidant stress.

Interventions

600 milligrams (mg)

DRUGSodium Bicarbonate

3 milliliters per kilogram per hour (mL/kg/hr) for one hour pre-procedure and infused at 1mL/kg/hr for 6 hours post-procedure

Sponsors

University of Nebraska
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

19 years of age * Baseline serum creatinine or * Calculated creatinine * Stable Renal Function * Left Ventricular ejection fraction * Non-pregnant, non-lactating females (all women of childbearing potential must have a negative serum pregnancy test. No contraception will be required * Able to sign informed consent

Exclusion criteria

* Acute renal failure * History of Kidney transplant * Currently receiving N-acetylcysteine \_ Contraindication of hypersensitivity to N-acetylcysteine or sodium bicarbonate * Left ventricular ejection fraction * Pregnant, lactating females * Allergy to contrast dye

Design outcomes

Primary

MeasureTime frameDescription
Compare the Effectiveness of Two Medications for Prevention of Contrast-induced Nephropathy2 yearsCompare oral N-Acetylcysteine and intravenous sodium bicarbonate for the prevention of contrast-induced nephropathy in high-risk patients undergoing cardiac catheterization.

Countries

United States

Participant flow

Participants by arm

ArmCount
1, N-Acetylcysteine
Oral N-acetylcysteine - 600 mg
18
2, Sodium Bicarbonate
Sodium bicarbonate 3 mL/kg/hr for one hour pre-procedure and infused at 1 mL/kg/hr for 6 hours post-procedure.
23
Total41

Baseline characteristics

Characteristic2, Sodium Bicarbonate1, N-AcetylcysteineTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
8 Participants8 Participants16 Participants
Age, Categorical
Between 18 and 65 years
15 Participants10 Participants25 Participants
Age, Continuous60 years
STANDARD_DEVIATION 4.4
62 years
STANDARD_DEVIATION 3.8
61 years
STANDARD_DEVIATION 4.2
Region of Enrollment
United States
23 participants18 participants41 participants
Sex: Female, Male
Female
5 Participants6 Participants11 Participants
Sex: Female, Male
Male
18 Participants12 Participants30 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 180 / 23
serious
Total, serious adverse events
0 / 180 / 23

Outcome results

Primary

Compare the Effectiveness of Two Medications for Prevention of Contrast-induced Nephropathy

Compare oral N-Acetylcysteine and intravenous sodium bicarbonate for the prevention of contrast-induced nephropathy in high-risk patients undergoing cardiac catheterization.

Time frame: 2 years

ArmMeasureValue (MEAN)
1, N-AcetylcysteineCompare the Effectiveness of Two Medications for Prevention of Contrast-induced NephropathyNA milligrams per deciliter
2, Sodium BicarbonateCompare the Effectiveness of Two Medications for Prevention of Contrast-induced NephropathyNA milligrams per deciliter

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026