Xenetic Biosciences, Inc. is a biopharmaceutical company focused on progressing XCART™, a personalized CAR T platform technology engineered to target patient-specific tumor neoantigens. The Company is advancing cell-based therapeutics targeting the unique B-cell receptor on the surface of an individual patient’s malignant tumor cells for the treatment of B-cell lymphomas. XCART™ has the potential to fuel a robust pipeline of therapeutic assets targeting high-value oncology indications.

Xenetic is leveraging PolyXen®, its proprietary drug delivery platform, to partner with biotechnology and pharmaceutical companies. PolyXen® has demonstrated its ability to improve the half-life and other pharmacological properties of next-generation biologic drugs. The Company receives royalty payments under an exclusive license arrangement in the field of blood coagulation disorders. In addition, Xenetic’s partner, PJSC Pharmsynthez ("Pharmsynthez"), is leveraging the Company’s PolyXen® technology to improve the pharmacological properties of its Epolong (erythropoietin and polysialic acid conjugate) product candidate pursuant to a royalty-bearing collaboration agreement between the Company's wholly owned subsidiary, Lipoxen Technologies Limited, and Pharmsynthez's wholly owned subsidiary, SynBio LLC. Pharmsynthez has reported that it has started the registration phase of Epolong by filing a registration dossier to obtain approval of Epolong in Russia for the treatment of anemia in patients with chronic kidney disease. The registration dossier is based on previously reported data from Pharmsynthez's Phase 3 clinical trials of Epolong in Russia, which reportedly demonstrated the efficacy of Epolong and its potential to reduce side effects.