Complex sentence: The Phase III trial only showed a benefit from bezlotoxumab; the combination of actoxumab and bezlotoxumab worked no better to prevent recurrence of "C.difficile" associated diarrhea than bezlotoxumab alone.
Split into simpler sentences: The Phase III trial only showed a benefit from bezlotoxumab. The combination of actoxumab and bezlotoxumab worked no better to prevent recurrence of "C.difficile" associated diarrhea than bezlotoxumab alone.