Evaluation of a New Nanotechnology Based Drug-Eluting Stent for Opening of Narrowed Arteries of the Heart
Coronary artery disease (CAD) is the largest cause of death and disability in the world. Besides medicines, the principle treatment of this condition requires opening of the narrowed arteries, responsible for angina and other symptoms of the disease, by angioplasty or surgery. Introduction of metal scaffolds called 'stents' in the past few decades revolutionised the angioplasty technique, and has made it the most popular treatment today for CAD. However these stents are prone to becomin narrow and obstructed after implanataion, causing symptoms and non-fatal heart attacks in some patients. Introduction of stents that slowly release drugs locally to minimize this process, called 'drug-eluting stents'(DES)he past few years has been one of the biggest breakthroughs in the field of cardiology. However ven the current available DES are still prone to narrowing in high-risk patients, like those with diabetes, and also have a higher chance for sudden blockage by a blood clot even many years later after insertion. Thus it is important to develop technology for more efficacious and safer DES.This includes safer drugs, better stent design and delivery, and more inert platforms for drug release We hypothesise that a new stent made with nanoporous particle with better polymer for drug release will prove to be safer and more efficacious alternative to currently available DES.
Allocation: Non-Randomized, Control: Historical Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
drug eluting nonpolymeric nanoporous stent
All India Institute of Medical Sciences
All India Institute of Medical Sciences, New Delhi
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00428662
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Fractional Flow Reserve, Myocardial
The ratio of maximum blood flow to the MYOCARDIUM with CORONARY STENOSIS present, to the maximum equivalent blood flow without stenosis. The measurement is commonly used to verify borderline stenosis of CORONARY ARTERIES.
Narrowing or constriction of a coronary artery.
Coronary-subclavian Steal Syndrome
A complication of INTERNAL MAMMARY-CORONARY ARTERY ANASTOMOSIS whereby an occlusion or stenosis of the proximal SUBCLAVIAN ARTERY causes a reversal of the blood flow away from the CORONARY CIRCULATION, through the grafted INTERNAL MAMMARY ARTERY (internal thoracic artery), and back to the distal subclavian distribution.
Abnormal balloon- or sac-like dilatation in the wall of CORONARY VESSELS. Most coronary aneurysms are due to CORONARY ATHEROSCLEROSIS, and the rest are due to inflammatory diseases, such as KAWASAKI DISEASE.
Stents that are covered with materials that are embedded with chemicals that are gradually released into the surrounding milieu.
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