[FGF23 related hypophosphatemic rickets:current therapy and unresolved issues].

FGF23-related hypophosphatemic rickets is basically treated with active vitamin D and phosphorus. The treatment goals are to minimize bone deformity and improve adult height in children, and to relieve pain and decrease osteomalacia in adult. However, since they do not target the underlying molecular defect, bone deformity can worsen during growth and adult height is suboptimal restricted. Many adult patients suffer from enthesopathy leading to symptoms such as spinal cord compression and debilitating pain. At present, no treatment is effective in preventing or revenging this complication. The recently developed anti-FGF23 antibody may potentially be a more fundamental treatment.