4565 Sosei Group Corporation

Nxera Pharma to Receive US$3.6 Million in Milestone Payment Pursuant to Research Collaboration with Centessa

Nxera Pharma to Receive US$3.6 Million in Milestone Payment Pursuant to Research Collaboration with Centessa

Tokyo, Japan and Cambridge, UK, 13 January 2026 – Nxera Pharma Co., Ltd. (“Nxera” or “the Company”; TSE 4565) notes that Centessa Pharmaceuticals has achieved an early development milestone associated with its investigational, orally administered, highly potent and selective orexin receptor 2 (OX2R) agonist, ORX142, in development for the treatment of neurological and neurodegenerative disorders. This milestone triggers a payment of US$3.6 million to Nxera pursuant to its research collaboration with Centessa. The milestone payment will be recognised as revenue in Q4 FY2025.

-ENDS-

About Nxera Pharma

Nxera Pharma is a technology powered biopharma company in pursuit of new specialty medicines to improve the lives of patients with unmet needs in Japan and globally. The Company has built an agile, new-generation commercial business in Japan to develop and commercialize innovative medicines, including several launched products, to address this high-value, large and growing market and those in the broader APAC region. In addition, and powered by its unique NxWave™ GPCR structure-based drug discovery platform, the Company is advancing an extensive pipeline internally and in partnership with leading pharma and biotech companies. Nxera Pharma operates at key locations in Tokyo and Osaka (Japan), London and Cambridge (UK), Basel (Switzerland) and Seoul (South Korea) and is listed on the Tokyo Stock Exchange (ticker: 4565).

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Enquiries:

Nxera – Media and Investor Relations

Shinya Tsuzuki, VP, Head of Investor Relations

Maya Bennison, Communications Manager

+81 (0)3 5210 3399 | +44 (0)1223 949390

MEDiSTRAVA (for International Media)

Mark Swallow, Frazer Hall, Erica Hollingsworth

+44 (0)203 928 6900 |

Forward-looking statements

This press release contains forward-looking statements, including statements about the discovery, development, and commercialization of products. Various risks may cause Nxera Pharma Group’s actual results to differ materially from those expressed or implied by the forward looking statements, including: adverse results in clinical development programs; failure to obtain patent protection for inventions; commercial limitations imposed by patents owned or controlled by third parties; dependence upon strategic alliance partners to develop and commercialize products and services; difficulties or delays in obtaining regulatory approvals to market products and services resulting from development efforts; the requirement for substantial funding to conduct research and development and to expand commercialization activities; and product initiatives by competitors. As a result of these factors, prospective investors are cautioned not to rely on any forward-looking statements. We disclaim any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.



EN
13/01/2026

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