Tiziana Life Sciences Plans to Spinout IL-6 Asset into Separate Listed Company

On December 2, 2025 Tiziana Life Sciences, Ltd. (Nasdaq: TLSA) ("Tiziana" or the "Company"), a biotechnology company developing breakthrough immunomodulation therapies reported that that it intends to develop its fully human anti-IL-6 receptor (IL-6R) monoclonal antibody, TZLS-501, and related assets (together "TZLS-501") via a spinout into a separate publicly traded company, to enhance the strategic focus of each company and to drive value for shareholders. Tiziana shareholders at the record date will retain value from TZLS-501 through the distribution in specie of shares in the new TZLS-501 listed entity.

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The Company recently announced that it would advance development of TZLS-501, a dual-action IL-6R monoclonal antibody targeting both membrane-bound and soluble forms of IL-6R. This decision was based in part on heightened industry interest in the IL-6 pathway—underscored by Novartis’ recent $1.4 billion acquisition of Tourmaline Bio for its IL-6 inhibitor pacibekitug. The Company considers TZLS-501 as having the potential to be a standalone business. Accordingly, the Company intends to proceed with steps for a publicly listed immunology-focused spin-out company, centered on the IL-6 market. The record date for this proposed transaction will be announced in the coming weeks and the transaction will formally be put to shareholders of Tiziana for approval. TZLS-501 will remain an asset of Tiziana Life Sciences until such time as shareholders formally approve proposals for the spin-out entity.

Ivor Elrifi, Chief Executive Officer of Tiziana Life Sciences, commented: "The recent Novartis acquisition of Tourmaline Bio for $1.4 billion highlights the tremendous value and strategic importance of IL-6 pathway therapeutics in addressing systemic inflammation and related diseases. Building on our September announcement to advance TZLS-501, we believe now is the ideal time to position this promising asset as a standalone entity. TZLS-501’s unique dual mechanism—blocking IL-6R signaling while reducing circulating IL-6 cytokines—offers significant potential as a monotherapy or in combination with other agents. This spin-out will unlock dedicated resources for its development, while allowing us to maintain focus on intranasal foralumab as our lead program."

There can be no certainty that the transaction will proceed and any listing will be subject to meeting the required listing criteria.

About TZLS-501

TZLS-501, a fully human mAb, was licensed from Novimmune, SA, (Geneva, CH) in 2017. IL-6 is a cytokine that binds to its receptor subunit IL-6Rα on the cell membrane, and is a major determinant in priming of pathogenic T cells to produce an inflammatory response. The receptor IL-6Rα can be shed in soluble form, sIL6Rα, which binds to circulating IL-6 cytokine in the blood. The downstream signaling from this complex mediates pro-inflammatory effects underlying inflammatory diseases. TZLS-501 acts via a dual mechanism by inhibiting IL-6R signaling and depleting circulating levels of IL-6.