US biotech firm Agenus (Nasdaq: AGEN) says it has amended the QS-21 license and manufacturing agreement with UK pharma giant GlaxoSmithKline (LSE: GSK) to include additional rights for the use of Agenus' proprietary QS-21 Stimulon adjuvant in GSK Biologicals' adjuvant systems.
In addition, Agenus has agreed to grant the vaccines company the first right to negotiate for the purchase of Agenus or certain of its assets. The first right to negotiate will expire after five years.
Under the terms of the accord, GSK will pay Agenus a non-refundable $9 million, of which $2.5 million is creditable against future manufacturing technology transfer royalty payments. The deal also includes royalty payments for an undisclosed indication on commercialization of a vaccine product.
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