There was an update to the CARD trial that proved Jevtana was more effective than 2nd line hormonals (Zytiga or Xtandi) in its oncological effectiveness when used as the third treatment (after Taxotere and one of the 2nd-line hormonals). The new update shows that in terms of pain relief and quality of life (QOL), Jevtana was better.
Recall that even on a first treatment, the degree of side effects from docetaxel was no worse than Zytiga. The side effects were different in kind, but not in severity.
Here's the updated article, which includes both links to the CARD trial: