Stem cell stroke treatment trial results 'show promise'

You'll have to read this yourself and see if it shows promise. At least it is for chronic so you don't have spontaneous recovery to confound the study.
The press release here;
http://www.beverleyguardian.co.uk/news/health/stem-cell-stroke-treatment-trial-results-show-promise-1-5718066
The trial itself here;
Pilot Investigation of Stem Cells in Stroke (PISCES)
Purpose

The study is designed to test the safety of a manufactured neural stem cell line (CTX cells) delivered by injection into the damaged brains of male patients 60 years of age or over who remain moderately to severely disabled 6 months to 5 years following an ischemic stroke. In addition the trial will evaluate a range of potential efficacy measures for future trials. Treatment will involve a single injection of one of four doses of CTX cells into the patient's brain in a carefully controlled neurosurgical operation performed under general anesthetic. The trial is designed to treat 12 patients and measure outcomes over 24 months. Patients will be invited to participate in a long-term follow-up trial for a further 8 years.