So tPA and a drug used for clots in heart attacks. It doesn't say why it works.
The Australian newspaper summary here:
http://www.theherald.com.au/news/local/news/health/medical-marvel-stroke-breakthrough/2496984.aspx
More than two-thirds of patients given the new treatment were almost fully recovered within 24 hours, compared with about a third of patients given the standard drug.
The NEJM abstract here:
http://www.nejm.org/doi/full/10.1056/NEJMoa1109842
I would speculate that the second drug does a better job of opening up the small capillaries that were closed by pericytes.
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