Tools · Sourced To Company Releases · Updated 2026-08-19

FDA Decision Calendar

Upcoming PDUFA target action dates, each one traced to the company press release that set it. Extensions are tracked on the row with the superseded date still visible, because a moved date repeated as current is the most common error on FDA calendars, and two of the widely syndicated dates were stale on the day this one launched.

When Is the Next FDA Decision?

RARE (Ultragenyx Pharmaceutical): the FDA's target action date for DTX401 (pariglasgene brecaparvovec) in glycogen storage disease type ia, aav gene therapy is August 23, 2026. A PDUFA date is a by-date rather than an on-date: the decision can arrive early, and a weekend date resolves by the preceding business day in practice.

Upcoming Decisions

  • August 23, 2026SundayRARE: DTX401 (pariglasgene brecaparvovec)Priority review

    Ultragenyx Pharmaceutical · BLA · Glycogen storage disease type Ia, AAV gene therapy

    August 23 is a Sunday; the FDA acts by the date, so the practical window closes with the preceding business day. Would be the first treatment addressing the underlying cause of GSDIa.

    Ultragenyx press release, BLA acceptance and priority review (February 23, 2026) ↗ · Our coverage: ultragenyx rare dtx401 fda decision august 23 preview

  • August 25, 2026TuesdayJAZZ: Ziihera (zanidatamab) combinationsPriority review

    Jazz Pharmaceuticals · sBLA · First-line HER2-positive locally advanced or metastatic gastric / GEJ / gastroesophageal adenocarcinoma

    Label expansion on an already-approved drug, supported by the HERIZON-GEA-01 trial, so the binary is commercial rather than existential.

    Jazz press release, sBLA acceptance and priority review (April 27, 2026) ↗

  • August 27, 2026ThursdayGILD: Bictegravir plus lenacapavir (BIC/LEN)Priority review

    Gilead Sciences · NDA · Once-daily single-tablet HIV treatment for virologically suppressed adults

    Pairs bictegravir with the capsid inhibitor lenacapavir in one daily pill.

    Gilead press release, priority review granted (April 27, 2026) ↗

  • September 18, 2026FridayNUVL: ZidesamtinibStandard review

    Nuvalent · NDA · TKI pre-treated advanced ROS1-positive non-small cell lung cancer

    First of two Nuvalent PDUFA dates in 2026; the ALK-selective sibling neladalkib follows on November 27.

    Nuvalent press release, NDA acceptance (November 19, 2025) ↗

  • September 19, 2026SaturdayRARE: UX111 (rebisufligene etisparvovec)Priority review

    Ultragenyx Pharmaceutical · BLA (resubmission) · Sanfilippo syndrome type A (MPS IIIA), AAV9 gene therapy, accelerated approval sought

    Resubmission after a 2025 complete response letter on manufacturing items; September 19 is a Saturday, so the practical window closes with the preceding business day. Second Ultragenyx gene-therapy decision inside a month.

    Ultragenyx press release, BLA resubmission accepted (April 2, 2026) ↗

  • September 22, 2026TuesdayIONS: ZilganersenPriority review

    Ionis Pharmaceuticals · NDA · Alexander disease, RNA-targeted antisense therapy

    Would be the first disease-modifying therapy for Alexander disease; pivotal study met its primary endpoint on gait speed.

    Ionis press release, NDA accepted with priority review (March 23, 2026) ↗

  • October 10, 2026SaturdayMRK: Ifinatamab deruxtecan (I-DXd)Priority review

    Merck / Daiichi Sankyo · BLA · Previously treated extensive-stage small cell lung cancer

    Would be a first-in-class B7-H3 directed antibody-drug conjugate. October 10 is a Saturday, so the practical window closes with the preceding business day.

    Merck press release, priority review granted (April 13, 2026) ↗

  • November 22, 2026SundaySVRA: MOLBREEVI (molgramostim inhalation solution)Extended

    Savara · BLA · Autoimmune pulmonary alveolar proteinosis

    Was: August 22, 2026

    Extended three months from August 22 after the FDA classed Savara's responses to information requests as a major amendment. Several aggregator calendars still carry the old August date. November 22 is a Sunday.

    Savara press release, review period extended (August 1, 2026) ↗

  • November 27, 2026FridayNUVL: NeladalkibPriority review

    Nuvalent · NDA · TKI pre-treated advanced ALK-positive non-small cell lung cancer

    Nuvalent's second 2026 decision, ten weeks after zidesamtinib.

    Nuvalent program update naming the November 27 action date (May 27, 2026) ↗

  • November 27, 2026FridayBBIO: BBP-418Priority review

    BridgeBio Pharma · NDA · Limb-girdle muscular dystrophy type 2I/R9

    Advisory committee: FDA told the company it is not currently planning an advisory committee meeting.

    Would be the first approved therapy for any form of limb-girdle muscular dystrophy.

    BridgeBio press release, NDA accepted with priority review (May 27, 2026) ↗

  • December 30, 2026WednesdayCOGT: BezuclastinibStandard review

    Cogent Biosciences · NDA · Non-advanced systemic mastocytosis

    Advisory committee: FDA communicated no plan to hold an advisory committee and no review issues identified at acceptance.

    Some aggregator calendars carry November 30; the company's own release says December 30. A second NDA, in advanced systemic mastocytosis, was guided for submission in the first half of 2026.

    Cogent press release, NDA accepted (March 16, 2026) ↗

Dates in Motion

Reviews where the published date no longer stands and no replacement has been set. They stay here rather than being given a guessed date.

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How This Is Built

A date only appears here once it has been read in the company's own press release or filing, linked on the row. Aggregator calendars are used to find candidates and never to establish a date, because they demonstrably lag extensions: on the day this page launched, two syndicated dates were three months and one month stale respectively. When the FDA extends a review, the row keeps both dates, so a reader who saw the old one can see what happened to it.

The calendar deliberately covers a curated set: decisions on names this site covers, plus the largest pending approvals. It is not an exhaustive list of every generic and supplemental application, and it does not need to be to answer the question readers bring to it.

The whole calendar is available as JSON and CSV, licensed CC BY 4.0, with the source link and status carried on every row.

PDUFA Date FAQ

When is the next FDA decision date?
RARE (Ultragenyx Pharmaceutical): the FDA's target action date for DTX401 (pariglasgene brecaparvovec) in glycogen storage disease type ia, aav gene therapy is August 23, 2026. A PDUFA date is a deadline for the FDA to act, not a promise of approval: the agency can approve, issue a complete response letter, or extend the review.
What is a PDUFA date?
The date by which the FDA has committed to act on a drug application, under the Prescription Drug User Fee Act. Standard review targets ten months from acceptance; priority review targets six. The FDA can approve, reject with a complete response letter, or extend the date, most commonly by three months when a late submission is classed as a major amendment.
Do FDA decisions arrive exactly on the PDUFA date?
No. The date is a by-date, not an on-date: decisions regularly land days or weeks early, and dates that fall on a weekend resolve by the preceding business day in practice. Approvals have also arrived after the stated date without any formal extension.
Why do dates on this calendar differ from other FDA calendars?
Because extensions move dates and most aggregators are slow to catch them. When this calendar launched, two of the widely syndicated dates were stale: Savara's molgramostim had been extended from August 22 to November 22, 2026, and Cogent's bezuclastinib date is December 30, 2026, per the company, not the November 30 some calendars carry. Every date here links the company press release that set it. Last updated August 19, 2026.
What happens to a stock on a PDUFA date?
A binary event: approval opens a commercial launch, a complete response letter sends the company back for more work, and the stock reprices on whichever arrives. The move is usually largest for single-asset companies where the drug is most of the market cap, and smallest for label expansions on already-approved drugs at large companies.