FDA decision deadline for KRESLADI in leukocyte adhesion deficiency type I (LAD-I), an ultra-rare pediatric immune disorder. Granted Priority Review. Would be Rocket’s first commercial gene therapy approval.
What’s at stake
KRESLADI (marnetegragene autotemcel) is a one-time ex vivo lentiviral gene therapy developed by Rocket Pharmaceuticals for leukocyte adhesion deficiency type I (LAD-I) — an ultra-rare, fatal pediatric immune disorder in which ITGB2 gene mutations prevent white blood cells from reaching sites of infection, leaving patients unable to fight bacteria. The therapy harvests a patient's own blood stem cells, inserts a functional ITGB2 gene via lentiviral vector, and reinfuses the corrected cells after myeloablative conditioning to restore immune function. Without treatment, severe LAD-I is typically fatal in infancy; KRESLADI received FDA Priority Review and would be Rocket's first commercial gene therapy.
No primer in glossary yet.
This event was extracted from a primary disclosure. The full chain of citations is in the disclosure trail below.
- BLAregulatoryBiologics License Application
FDA submission for approval of a biologic (antibody, gene/cell therapy, vaccine). Same clock as NDA.
- 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.
Competitive landscape
| Drug | Company | Modality | Mechanism | Phase | Next catalyst |
|---|---|---|---|---|---|
| ELEVIDYSdelandistrogene moxeparvovec | SRPT | gene therapy | AAVrh74-microdystrophin transfer | ADCOM · May 26 | |
| VOXZOGOvosoritide | BMRN | peptide | CNP analog (FGFR3 antagonism) | PDUFA · Nov 26 | |
| GALAFOLDmigalastat | FOLD | small molecule | pharmacological chaperone of α-galactosidase A | PDUFA · Nov 26 |
Disclosure trail
- Feb 26, 2026·2mo agopinned · highest confidenceHIGH confPREXACTtop claimOCT 092026
“The FDA has accepted for filing and granted Priority Review to the BLA for KRESLADI in leukocyte adhesion deficiency type I, with a PDUFA action date of October 9, 2026.”
conf 97%via llm