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Janux Therapeutics, Bristol Myers enter up to $850 million deal to develop cancer drug

By Thomson Reuters Jan 22, 2026 | 6:38 AM

Jan 22 (Reuters) – Janux Therapeutics said on Thursday it has entered a collaboration with Bristol Myers Squibb to ‍develop a new cancer treatment, sending its shares up more than 12% in premarket trading.

The therapy is intended to treat “solid tumors” – meaning cancers that form masses in ‌organs such as the lung, ‌breast, colon or pancreas, Janux said, and it will target a tumor marker found across several types of cancers.

Janux may get up to $50 ​million in upfront and near-term milestone payments under the agreement, and ‍could earn additional payments ​totaling about $800 million tied to ​progress in development, regulatory approvals and sales. ‍It would also get royalties on worldwide product sales if a drug reaches the market.

“This collaboration marks a significant milestone for Janux,” Janux CEO David Campbell ‍said in a statement, adding that the partnership pairs the company’s technology with Bristol Myers’ ‍development and ‍commercialization capabilities.

Janux will complete ​preclinical testing and hand over ​clinical ⁠testing to Bristol. Bristol will then ‌take up subsequent development and global commercialization of the drug, with Janux remaining actively involved through completion of the early-stage study.

(Reporting by Padmanabhan Ananthan in Bengaluru; Editing by ⁠Devika Syamnath)