scL-TMZ or scL-P53. Anyone using or know anything about this?

Hi -
Been reading about scL-P53 on PubMed and it appears to be more effective than TMZ.  Asked our NO about it and was told all TMZ is the same.  Does anyone have any experience with the scL-TMZ? I can't find out if it's available or just in trials.  Here are the links:

http://www.ncbi.nlm.nih.gov/pubmed/?term=scL-p53

http://www.ncbi.nlm.nih.gov/m/pubmed/26325605/?i=1&from=glioblastoma 

Thanks.
Annie