XL-protein and Grifols ink global biopharma licensing deal

10 June 2025

Privately-owned German biotech XL-protein GmbH today announced that it has entered into a worldwide license, development and commercialization agreement with Spanish plasma-derived medicines specialist Grifols (MCE: GRF) for a novel, long-acting biopharmaceutical product.

Under this collaboration, XL-protein will leverage its proprietary, clinical-stage PASylation technology to extend the circulation of Grifols therapeutics, paving the way for a more effective and long-lasting treatment. XL-protein will actively support pre-clinical development activities while Grifols will be entitled to further developing as well as manufacturing and marketing the PASylated-enhanced biologic.

Terms of the accord

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