US Patent 11672809 Methods and compositions for reducing parathyroid levels

Methods and compositions for reducing serum parathyroid levels in, for example, chronic kidney disease patients are disclosed. In these methods, an effective amount of a modified release formulation of 25-hydroxy vitamin D is orally administered to a patient suffering from secondary hyperparathyroidism to lower the patient's serum intact parathyroid hormone (iPTH) level, while avoiding a surge in serum total 25-hydroxy vitamin D.