Navepegritide (1 brand name, 1 dosage form, 1 route)
Available dosage forms: POWDER.
Routes of administration: SUBCUTANEOUS.
Brand Names
- YUVIWEL
Indications and Usage
YUVIWEL® is indicated to increase linear growth in pediatric patients 2 years of age and older with achondroplasia with open epiphyses. This indication is approved under accelerated approval based on an improvement in annualized growth velocity [see Clinical Studies (14)]. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trial(s).
Contraindications
None.
Mechanism of Action
CNP released from navepegritide has the same receptor binding affinity and activity as endogenous CNP. CNP binds to natriuretic peptide receptor-B (NPR-B), which inhibits the mitogen activated protein kinase signaling (MAPK) pathway. Achondroplasia is caused by a gain-of-function variant in the fibroblast growth factor receptor 3 (FGFR3) leading to overactive downstream signaling. The overly active FGFR3 inhibits endochondral ossification leading to short stature and skeletal dysplasia. Like endogenous CNP, CNP released from navepegritide binds to NPR-B, stimulating an increase in cyclic guanosine monophosphate (cGMP) and signaling through protein kinase G, resulting in an inhibition of the MAPK signaling pathway and thereby antagonizing the overactive FGFR3 signaling in achondroplasia. CNP promotes chondrocyte differentiation and proliferation, thereby stimulating skeletal bone growth in patients with achondroplasia.