Moderna

mCOMBRIAX

Active

Moderna's combination COVID-19 and influenza vaccine (mRNA-1083), the world's first authorized flu-plus-COVID combination vaccine, delivered as a single shot.

Latest update Nov 10, 2026

01

Current status

Approved by the European Commission on April 20, 2026 for adults 50 and older, valid across the EU plus Iceland, Liechtenstein, and Norway. Health Canada's Drug Product Database lists the Canadian brand MCOFLU as Approved on Nov. 4, 2026, DIN 02573288. The Nov. 6 Form 10-Q says mCOMBRIAX had not been commercialized as of Sept. 30, 2026. Exhibit 99.1 says the combination remains under review in Japan, the United Kingdom, and Australia, and that Moderna continues to await FDA guidance on a U.S. refiling. Those documents state no Canada availability date and no supply agreement.

02

Specifications2

EU Approval
April 20, 2026 (adults 50+)
US Status
Application withdrawn May 2025

resubmission planned, no date set

03

Upcoming milestones1

Announced next steps from Moderna that mention mCOMBRIAX.

  1. No date yet

    Resubmit mCOMBRIAX (mRNA-1083) US application

    TargetTiming not yet announced

    Resubmit the US Biologics License Application for mCOMBRIAX, the flu-plus-COVID combination vaccine already approved in the EU. Moderna withdrew the original 2024 US application in May 2025 after the FDA requested Phase 3 influenza-efficacy data; that data has now been delivered via mFlusiva's August 5, 2026 approval, clearing the path to resubmit. Moderna has still not announced a specific resubmission timeline, and the FDA's rare refusal-to-file letter on mFlusiva earlier in 2026 (reversed on appeal) could add further delay before the combination shot is refiled.

04

More from Moderna6

05

More in Biotech