The latest press release from Ultragenyx Pharmaceutical, primarily addressed to investors, includes some new data on the healing of fractures in the adult XLHers in the Phase 3 clinical trial of KRN23/burosumab:
"At study entry, 52% of patients (comprising 48% of patients randomized to burosumab and 56% of patients randomized to placebo) presented with either active fractures (12%) or pseudofractures (47%) or both. At week 24, 37% of active fractures or pseudofractures in patients treated with burosumab were completely healed compared to 10% on placebo. Additionally, at week 24, 3% of existing active fractures or pseudofractures treated with burosumab worsened compared to 11% on placebo."
It's worth noting that the study, in addition to showing apparent benefits for healing, also documents just how widespread the occurrence of fractures and pseudofractures is within the adult XLH community, with roughly half of the study participants having a fracture or pseudofracture!
You can read the entire press release here:
http://ir.ultragenyx.com/releasedetail.cfm?ReleaseID=1024922
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