I didn't know they had concluded that. But it's not enough for me to give up hope. As I understand, it's at least still being investigated for tourettes, and if it's approved for that, it could be prescribed off-label for stuttering. Regardless of the studies, there are many case reports of it working, and it may just be that it works for some, but not a general treatment. So the question remains, after 10 years of research, there must be something that warrants to release it? My self, I've had a lot of help from olanzapine, and ecopipam seems to be similar, but something new.