Current Advances in the Medical Application of Nanotechnology

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Nanotechnology promises new medical therapies, more rapid and sensitive diagnostic and investigative tools for normal and diseased tissues, and new materials for tissue engineering. This e-book ...
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Nanomedicine and the Treatment of Coronary In-Stent Restenosis - A Clinical Review

Pp. 32-42 (11)

Garry McDowell

Abstract

Coronary in-stent restenosis remains a significant limitation to the long term efficacy of coronary artery stent placement. In this Chapter the author reviews the pathophysiology of coronary instent restenosis, together with an overview of the current treatment modalities. The potential for the use of nanotechnology is also reviewed.

The first human safety trial of systemic nanoparticle paclitaxel (nab-paclitaxel) for in-stent restenosis (SNAPIST-I) is discussed. The results showed no significant adverse advents attributable to the nabpaclitaxel at 10 or 30 mg/m2, although moderate neutropenia, sensory neuropathy and mild to moderate reversible alopecia occurred at higher doses. No major adverse cardiac events were recorded at 2 months, whilst at 6 months 4 target lesions required revascularisation. The investigators concluded therefore that systemic nab-paclitaxel was well tolerated at a dose of less that 70 mg/m2. To date however no formal clinical evaluation has been reported as to the clinical utility of nab-paclitaxel or any of the nano preparations discussed for the suppression of coronary in-stent restenosis.

Keywords:

Nanoparticles; coronary in-stent restenosis; pathophysiology; treatment; animal models; human; clinical trials; vascular disease; atherosclerosis; clinical review.

Affiliation:

Senior Lecturer, Faculty of Health, Edge Hill University, St Helens Road, Ormskirk, Lancashire, L39 4QP, UK.