(CUR) I think it is very promising, highly speculative at this stage, but very promising. It's a long term hold, but I have trading position also and have done well. Next big news should be in about 5 months on some clinical trials on ALS patients. It's floated between $2.75 and $4 for the last 6 months or so.
Theralase Technologies (TLTFF) is another highly speculative stock that I really like, possible cure for cancer using Photo Dynamic Compounds and Cold Lasers. Take a close look at them also.
Good luck.