Pfizer Pulls Plug But iTeos Has High Hopes For IDO1 Inhibitor

The Belgian biotech has regained the rights to an early-stage IDO1 inhibitor that has failed a Phase I trial but iTeos believes the drug's penetration to the brain makes EOS200271 a significant asset.

Doors
Door closes, another opens: iTeos upbeat despite Pfizer pact ending • Source: Shutterstock

News that Pfizer Inc. is returning the rights to its indoleamine 2,3-dioxygenase (IDO1) inhibitor is a surprise but represents an opportunity for iTeos Therapeutics SA, according to the Belgian biotech's CEO Michel Detheux.

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