With full phase II results in hand, MBX Biosciences Inc. backers are stacking the odds of parathyroid hormone (PTH) peptide prodrug canvuparatide (canvu) against Yorvipath (palopegteriparatide} from Ascendis Pharma A/S, a PTH analog cleared by the U.S. FDA in August 2024 for hypoparathyroidism (HP).