GSK, Santaris ink deal worth a potential $700 million

LONDON GlaxoSmithKline has signed a deal with the biotech company Santaris Pharma to develop new antiviral medicine, in a deal that could be worth more than $700 million, according to Reuters. The deal involves drug candidates discovered and developed under the agreement in up to four different viral disease programs.

As part of the deal, Santaris will receive an upfront payment of $3 million for the first antiviral program and an equity investment of $5 million. The deal could be worth more than $700 million based on upfront payments and development and regulatory milestone payments, depending on the success on early-stage research in RNA antagonist compounds.

Santaris will also get high single- to double-digit percentage royalties on worldwide sales of marketed products. GSK will have the option to develop drug candidates in up to four different viral disease programs. It also has an option to include as an additional program Santaris’ pre-clinical hepatitis C compound SPC3649.

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