Welcome Caroleh
All these drugs are very good to have but clearly they won't benefit everyone. I hope your husband responds better to the chemo, it is often a period when men actually start to feel a bit better (apart from the unwell days in the cycle), at least that's anecdotal from people posting here. I hope that's how it works for you.
I have noticed that we don't talk about Cabazataxel (not sure about spelling) on here these days, I know it's another form of chemo which was used a year or two ago, generally when Taxotere (doxataxel) had failed. I know two people here who are on their second course of chemo (Taxotere) and have done ok, not pleasant but it's been fairly effective.
Do you know if hubby will be able to be given one of the other new drugs in the future?
With best wishes
Allison