PITTSBURGH, March 20, 2026 /PRNewswire/ -- PANTHERx® Rare Pharmacy, the trusted leader and innovator in patient access and support services for personalized rare disease care, announced that it was selected by Rhythm Pharmaceuticals, Inc. (Nasdaq: RYTM), as the exclusive U.S. Pharmacy distribution partner for the expanded indication of IMCIVREE® (setmelanotide) for adults and children 4 years of age and older living with acquired hypothalamic obesity.1 Acquired hypothalamic obesity is a rare disease characterized by accelerated and sustained weight gain caused by an injury to the hypothalamus. Acquired hypothalamic obesity most frequently follows the growth or treatment of craniopharyngioma, astrocytoma or other hypothalamic-pituitary tumors.