Wednesday, June 10, 2026

Patent intelligence · CN

CN 120418289

Combination therapy of bispecific binding agents that bind to CLDN18.2 and CD3 with immune checkpoint inhibitors

granted A61P 35/ 00 A IA61P/3500
Status granted
Linked drugs 4
Pipeline programs 6
Years to expiry 19
Applicant portfolio 10
Patent details — CN 120418289

Quick answer

CN 120418289 (Combination therapy of bispecific binding agents that bind to CLDN18.2 and CD3 with immune checkpoint inhibitors) is held by ASTELLAS PHARMA EUROPE B V. Status: granted. Granted Aug 1, 2025. Expires Jul 27, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
CPC classes
A61P 35/ 00 A I, A61P/3500

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Frequently asked questions

What is US patent 120418289?

CN 120418289 (Combination therapy of bispecific binding agents that bind to CLDN18.2 and CD3 with immune checkpoint inhibitors) is held by ASTELLAS PHARMA EUROPE B V. Status: granted. Granted Aug 1, 2025. Expires Jul 27, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Who owns CN 120418289?

ASTELLAS PHARMA EUROPE B V is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 10 pharmaceutical patents for this assignee.

When does CN 120418289 expire?

Our index shows an expiration date of Jul 27, 2045 (19 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.