Rhythm Pharmaceuticals IncRYTM
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Positive Phase 2 data for setmelanotide in Prader-Willi syndrome, supporting advancement to Phase 3 trial.
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Ultragenyx Wins FDA Approval for FAYUVI, First Sanfilippo Type A Treatment
Ultragenyx Pharmaceutical received full U.S. FDA approval in September 2026 for FAYUVI, also known as UX111, the first-ever treatment for pediatric patients with Sanfilippo syndrome Type A, a previously untreated ultra-rare and fatal neurodegenerative disease. The approval came with a Priority Review Voucher and expands Ultragenyx's commercial gene therapy portfolio and U.S. manufacturing footprint. The FAYUVI clearance follows the accelerated FDA approval of GENGLYCOS, also known as DTX401, for GSDIa in August 2026, giving the company two new gene therapies approved within weeks, each generating its own Priority Review Voucher. Ultragenyx's investment narrative projects $1.2 billion in revenue and $43.8 million in earnings by 2029, with a $27.00 fair value estimate implying 86% upside to the current price. The company's biggest immediate risk remains high cash burn and potential dilution if launches underperform or costs do not come down, with adoption, reimbursement and scaling of the new therapies shaping whether it can move closer to its 2027 profitability goal.
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Ascendis Pharma Regains TransCon Metabolic Rights After Novo Nordisk Split
Ascendis Pharma has regained exclusive rights to TransCon technology-based products in metabolic and cardiovascular diseases after ending its collaboration with Novo Nordisk. The company plans to advance its own programs in obesity and type 2 diabetes using its TransCon platform, with management highlighting once-monthly TransCon Semaglutide as a planned program within its expanded metabolic disease pipeline. Control of once-monthly TransCon Semaglutide and other metabolic projects shifts Ascendis from a partner model with Novo Nordisk to running these programs itself, concentrating both the potential upside and the development and commercialization costs inside one balance sheet. The regained rights and the once-monthly TransCon Semaglutide plans are only one part of the Ascendis story, and the company's existing rare endocrine portfolio still centers on YORVIPATH, SKYTROFA, and TransCon CNP or YUVIWEL. Key proof points now sit in the clinic and on the cash line, including formal trial initiation for once-monthly TransCon Semaglutide in obesity and type 2 diabetes, plus any updated R&D and share repurchase commentary at events such as the September 15, 2026 Morgan Stanley conference.
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BioMarin Reports Positive Phase 3 VOXZOGO Hypochondroplasia Data and Files sNDA
BioMarin Pharmaceutical reported positive Phase 3 CANOPY-HCH-3 results for VOXZOGO in children with hypochondroplasia and submitted a supplemental FDA application to expand the drug's use, while also adding Bristol Myers Squibb research leader Robert Plenge, M.D., Ph.D., to its Board and Science and Technology Committee. The late-stage data cover an indication with no approved treatments, and the company said the combination of the results and the board appointment underscores its focus on deepening its rare disease franchise and scientific oversight. BioMarin's narrative projects $5.0 billion revenue and $1.3 billion earnings by 2029, requiring 14.0% yearly revenue growth and about a $1.2 billion earnings increase from $73.0 million today, with a $91.42 fair value cited, a 43% upside to its current price. More pessimistic analysts warn that heavy reliance on a few rare disease drugs and uncertainty around future indications could leave BioMarin short of pre-news expectations of about US$4.7 billion in revenue and roughly US$509.5 million in earnings by 2029.