This protocol addresses children presenting with hypophosphatemic rickets that has developed as a consequence of iatrogenic proximal tubulopathy — a situation where an administered agent has injured the proximal renal tubule, leading to phosphate wasting and rickets.
The primary goal in this setting is to identify and stop the injurious agent responsible for the tubular damage. Ongoing exposure to the causative agent must be addressed before any supportive measures can be fully effective.
Once the injurious agent is discontinued, supportive management involves phosphate supplementation combined with cautious use of active vitamin D. The full regimen — including agent selection, sequencing, and monitoring guidance — is available in the structured protocol.