# Bayer wins FDA nod for a new kind of blood thinner

Source: [BioPharma Dive - Latest News](https://www.biopharmadive.com/news/bayer-sunharbo-asundexian-fda-approve-stroke-factor-xi/872837/) · 2026-11-09 · Medicine
Page: https://themorning.science/story/bayer-wins-fda-nod-for-a-new-kind-of-blood-thinner-5e5a91a6c6f46d6a
Kind: launch · Impact: medium

## In brief

- The FDA has approved Sunharbo, a blood thinner from Bayer.
- Sunharbo is the first approved Factor XIa inhibitor, a class of medicines that has been anticipated.
- The class is seen as a possible step forward in stroke prevention.

## Why it matters

It is the first approved drug in a new class of anticoagulants that targets Factor XI, which could offer a different option for stroke prevention.

## Timeline

- 2026-11-09: FDA approval of Sunharbo reported as the first Factor XIa inhibitor approved in the U.S.

## Coverage

- [Bayer wins FDA nod for a new kind of blood thinner](https://www.biopharmadive.com/news/bayer-sunharbo-asundexian-fda-approve-stroke-factor-xi/872837/) — BioPharma Dive - Latest News, 2026-11-09

Tags: anticoagulants, stroke prevention, factor xi, fda approval, bayer, drug approval

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science