Biotech Stock Intel
Catalyst CalendarPDUFA CalendarMover SignalsCompany Screener
Disclaimer: Biotech Stock Intel is an independent research platform. Information is provided for informational purposes only and is not investment or medical advice. Always verify catalyst dates against primary sources and conduct your own research.
Biotech Stock Intel© 2026 Biotech Stock Intel
AboutMethodologyTermsPrivacy
Biotech Stock Intel
Catalyst CalendarPDUFA CalendarMover SignalsCompany Screener
Home/Stocks/RARE/Catalyst
ApprovedUpdate

DTX401

Glycogen Storage Disease Type Ia

RAREUltragenyx Pharmaceutical Inc.
Expected catalystTBA

Catalyst overview

Event details

Drug or asset
DTX401
Development stage
Approved
Event type
Update
Indication
Glycogen Storage Disease Type Ia

Research summary

What is being tracked?

This catalyst tracks a Approved update for DTX401 in Glycogen Storage Disease Type Ia . The expected timing is based on the latest available company guidance and may change.

Development notes

05/2023- Dosing complete. 5/30/24- Positive Ph3 topline results. 5/30/24- Present full 48wk data at a scientific conference later in 2024. 2/13/25- BLA submission in mid-2025. 8/18/25- Rolling BLA initiated, complete submission in Q4 2025. 9/8/25- Announces positive longer-term data. 11/04/25:- Rolling BLA submission ongoing for DTX401; expect completion in Q4 2025 including long-term data. 12/30/25:- Completed rolling BLA submission for DTX401 in GSDIa; next catalyst FDA acceptance for review. 01/12/26:- DTX401 rolling BLA completed Dec 2025; PDUFA approval decision expected in Q3 2026. 02/23/26:- FDA accepted DTX401 BLA with Priority Review; PDUFA action date set for August 23, 2026. 05/05/26:- FDA does not anticipate advisory committee meeting before DTX401 August 23, 2026 PDUFA decision. 08/04/26:- DTX401 PDUFA action date reiterated for August 23, 2026. 08/19/26:- FDA granted accelerated approval for GENGLYCOS (DTX401) in GSDIa.

Verification

Primary source

Confirm timing and program details against the company announcement or filing.

Open source

More from RARE

Related pipeline programs

PDUFA

UX111 (ABO-102)

Rare diseases, Sanfilippo Syndrome

View company pipeline
Phase 3

GTX-102

Angelman Syndrome

View company pipeline
Phase 3

DTX301

Ornithine transcarbmylase deficiency

View company pipeline
Phase 1/2

UX701

Rare diseases, Wilson's disease

View company pipeline

Company

Ultragenyx Pharmaceutical Inc.

RARE · NASDAQ
Industry
Biotechnology
Pipeline assets
9
View RARE research

BioPharma Pro

Track every date change

Watchlists, source history and catalyst alerts will be available with Pro.

Start free

Updated Aug 23, 2026. Dates can change; this is not investment advice.

Disclaimer: Biotech Stock Intel is an independent research platform. Information is provided for informational purposes only and is not investment or medical advice. Always verify catalyst dates against primary sources and conduct your own research.
Biotech Stock Intel© 2026 Biotech Stock Intel
AboutMethodologyTermsPrivacy