Stroke. 2009;40:S115-S118
Published online before print December 8, 2008,
doi: 10.1161/STROKEAHA.108.535112
(Stroke. 2009;40:S115.)
© 2009 American Heart Association, Inc.
Cosmic Implications of NXY-059
Sean I. Savitz, MD
From the Stroke Program, Department of Neurology, University of Texas, Houston Medical School, Houston, Tex.
Correspondence to Sean I. Savitz, MD, Stroke Program, Department of Neurology, University of Texas, Houston Medical School, Houston, TX 77030. E-mail sean.i.savitz@uth.tmc.edu
Key Words: neuroprotection
An extract of the first 250 words of the full text is provided, because this article has no abstract.
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Introduction
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The SAINT studies on NXY-059
1,2 have reinvigorated debate over
the momentous issues of neuroprotection and the development
of novel stroke therapeutics. Some may argue there is little
new ground that NXY-059 has unearthed and, in fact, the clinical
trials merely confirm that as a strategy, neuroprotection has
not been shown to be effective. Editorials in high-profile journals
have sent out the clarion call to terminate research on neuroprotection
given decades of work, which has uniformly led to failure after
failure in clinical studies.
3 These sentiments are premature
and ignore studies showing that hypothermia improves outcome
in patients after cardiac arrest, a major cause of global cerebral
ischemia.
4,5 Proof for the neuroprotection concept has therefore
already been established. Despite decades of neutral clinical
trials, there still remains optimism among the stroke academic
community. A majority of university-affiliated stroke neurologists
in the United States in a recent survey still believe neuroprotection
is a viable therapeutic strategy, although admittedly, that
survey was conducted between the SAINT I and SAINT II publications.
6 However, the question whether neuroprotection will ever work
in stroke has been overshadowed by the larger issue of whether
animal studies, which serve as the foundation for the development
of stroke therapeutics, are even relevant to our patients with
acute stroke. In the discussion section of the SAINT II article,
the authors write, "it is possible that the animal models of
acute focal infarction are not relevant to the patient population;
they certainly are insufficient to guarantee a positive clinical-trial
result."
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Are Animal Studies Relevant to Human Stroke?
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Have
. . . [Full Text of this Article]