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Aminophylline and Contrast Induced Nephropathy in Acute Myocardial Infarction

This study has been completed.
Information provided by (Responsible Party):
Mauro Maioli, Ospedale Misericordia e Dolce Identifier:
First received: May 6, 2012
Last updated: October 26, 2012
Last verified: October 2012
The purpose of this study is to determine whether additional therapy with Aminophylline to hydration with sodium bicarbonate and administration of N-acetylcysteine is more effective to prevent contrast induced acute kidney injury in patients undergoing primary coronary intervention for acute ST elevation myocardial infarction.

Condition Intervention Phase
Acute Kidney Injury
Drug: Aminophylline
Drug: Hydration plus N-acetylcisteine
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: Effect of Aminophylline on Contrast Induced Acute Kidney Injury in Patients With Acute Myocardial Infarction Treated With Primary Angioplasty

Resource links provided by NLM:

Further study details as provided by Mauro Maioli, Ospedale Misericordia e Dolce:

Primary Outcome Measures:
  • Incidence of Contrast-Induced Acute Kidney Injury [ Time Frame: 3 days ]
    Contrast-Induced Acute Kidney Injury is defined as an increase in serum creatinine of >=25% or 0.5 mg/dL over the baseline value within 3 days after the administration of the contrast medium

Secondary Outcome Measures:
  • Adverse clinical events [ Time Frame: 1 month ]
    Adverse clinical events within 1 month including in-hospital death and need for dialysis or hemofiltration

Enrollment: 250
Study Start Date: January 2009
Study Completion Date: September 2012
Primary Completion Date: September 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Aminophylline
Additional Aminophylline therapy to hydration (sodium bicarbonate) and N-acetilcysteine
Drug: Aminophylline
  • 200 mg of aminophylline administrated intravenously as a short infusion, started in emergency department, before primary angioplasty and contrast medium administration
  • Sodium bicarbonate (154 mEq/L in dextrose and H20) 3mL/kg for 1 hour before contrast medium, followed by an infusion of 1 mL/kg/h for 12 hours after procedure
  • N-acetilcysteine: intravenous bolus of 1200 mg before angioplasty and 1200 mg twice daily for the 48 hours after PCI
Active Comparator: Control group
Control group treated with hydration (sodium bicarbonate) and N-acetilcysteine
Drug: Hydration plus N-acetylcisteine
  • Sodium bicarbonate (154 mEq/L in dextrose and H20) 3mL/kg for 1 hour before contrast medium, followed by an infusion of 1 mL/kg/h for 12 hours after procedure
  • N-acetilcysteine: intravenous bolus of 1200 mg before angioplasty and 1200 mg twice daily for the 48 hours after PCI

Detailed Description:

Due to the clinical relevance of contrast acute kidney injury a large number of prophylactic procedures have been investigated. N-acetylcysteine and hydration with sodium bicarbonate are proved to be protective against contrast acute kidney injury. The adenosine-mediated afferent arteriolar vasoconstriction is a possible pathomechanism of renal impairment by contrast agent. It has been observed that aminophylline/theophylline, competitive adenosine antagonists, improves oxygen delivery to ischemic tissue, diminishes oxidative damage to renal tissue and may also scavenge free radicals.

The purpose of this study was to investigated whether the additional therapy with adenosine antagonist aminophylline reduces the incidence of contrast renal damage in high risk patients who have acute myocardial infarction.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Consecutive patients with AMI candidates for primary PCI presenting within 12 h of symptom onset with ST-segment elevation of more than 1 mm in at least two contiguous leads of the electrocardiogram

Exclusion Criteria:

  • contrast medium administration within the previous 10 days,
  • end-stage renal failure requiring dialysis,
  • refusal to give informed consent
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Please refer to this study by its identifier: NCT01594489

Ospedale Misericordia e Dolce
Prato, Italy, 59100
Sponsors and Collaborators
Ospedale Misericordia e Dolce
Principal Investigator: Mauro Maioli, MD Cardiology Unit, Misericordia e Dolce Hospital, Prato, Italy
  More Information

Responsible Party: Mauro Maioli, Medical Doctor, Ospedale Misericordia e Dolce Identifier: NCT01594489     History of Changes
Other Study ID Numbers: Prato0704
Study First Received: May 6, 2012
Last Updated: October 26, 2012

Additional relevant MeSH terms:
Myocardial Infarction
Acute Kidney Injury
Pathologic Processes
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases
Renal Insufficiency
Kidney Diseases
Urologic Diseases
Bronchodilator Agents
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Asthmatic Agents
Respiratory System Agents
Cardiotonic Agents
Phosphodiesterase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Purinergic P1 Receptor Antagonists
Purinergic Antagonists
Purinergic Agents
Neurotransmitter Agents
Protective Agents processed this record on May 25, 2017