I looked up the Eldorado trial and found it at:www.clinicaltrial.gov/ct2/show/NCT00452556
Here is an excerpt of the criteria for being accepted
Life expectancy greater than 5 years.
Any one, or more, of the following criteria:
* TNM stage T2c, T3a or T3b
* Gleason score 8 to 10, as determined by central institutional review.
* PSA > 20 µg/L, but < 50 µg/L. OR Have a > 50% chance of recurrence after radical prostatectomy, as predicted by the Kattan Nomogram and
* Post – op PSA < 1.0 µg/L.
* Must be able to start protocol treatment within 6 months from date of surgery.
No evidence of metastasis, as determined by bone scan and Chest x–ray/CT abdomen/pelvis.
I think that some of these, especially the no evidence of metastasis, are good news for your husband.
As I understand it, the purpose of the trial is to see if using radiation can make it possible to give higher doses of Docetaxel than could otherwise be tolerated. This has already been shown to work in treating other cancers.
I hope this helps.