VOXZOGO Under-5 CANOPY Topline
Reported 2026-01-15: VOXZOGO produced a mean +1.10 cm/yr greater growth velocity vs. placebo (p=0.0009) at week 52 in achondroplasia patients aged 4 to <60 months. Supports the November 20 sNDA PDUFA.
What’s at stake
VOXZOGO (vosoritide) is a once-daily subcutaneous injection developed by BioMarin for achondroplasia — the most common form of short-limb dwarfism, caused by a gain-of-function FGFR3 mutation that suppresses bone growth at the growth plates. The drug is a synthetic analog of C-type natriuretic peptide (CNP), a signaling molecule that inhibits the overactive FGFR3 receptor, allowing growth plates to develop more normally and increasing annualized height velocity in children. VOXZOGO is approved in the US for patients aged 5 and older; BioMarin is pursuing a label extension for infants from age 4 months.
No primer in glossary yet.
- PDUFAregulatoryPrescription Drug User Fee Act
The FDA's self-imposed review deadline for an NDA/BLA. Standard reviews are ~10 months from filing; priority reviews are ~6 months.
How Appr readouts in Rare Disease have landed.
Reference, not prediction. We surface the historical record so you can read it yourself. We never extrapolate to the upcoming event.
Competitive landscape
| Drug | Company | Modality | Mechanism | Phase | Next catalyst |
|---|---|---|---|---|---|
| ELEVIDYSdelandistrogene moxeparvovec | SRPT | gene therapy | AAVrh74-microdystrophin transfer | ADCOM · May 26 | |
| GALAFOLDmigalastat | FOLD | small molecule | pharmacological chaperone of α-galactosidase A | PDUFA · Nov 26 | |
| KRESLADImarnetegragene autotemcel | RCKT | gene therapy | lentiviral ITGB2 transfer (LAD-I) | PDUFA · Oct 26 |
Prior BMRN reactions to Readout events
| Date | Headline | Outcome | 1W | 1M | 6M |
|---|---|---|---|---|---|
| Jan 2026 | VOXZOGO Under-5 CANOPY Topline | positive | +15.5% | +33.4% | +26.5% |
Disclosure trail
- Jan 15, 2026·3mo agopinned · highest confidenceHIGH confPREXACTtop claimJAN 152026
“Children aged 4 to <60 months treated with VOXZOGO achieved a mean annualized growth velocity 1.10 cm/yr greater than placebo at week 52 (95% CI 0.46–1.74; p=0.0009).”
conf 97%via human