I think you should be very interested in this news.
My CF center have started a trial on inhaled GSH, financed by AIFA (an Italian organization similar to FDA).
It should be a trial for adults and children (min. 7 yo), or maybe two different trials, I don't know.
At this time I don't have many informations, but I know that the doctor that organized this trial is quite pleased by the first results, because patients feel better.

More on this as soon as I'll have more informations.