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Tiziana Life Sciences Announces Long Covid Study to Complete in Second Quarter

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Tiziana Life Sciences Ltd.
Tiziana Life Sciences Ltd.

NEW YORK, Feb. 25, 2025 (GLOBE NEWSWIRE) -- Tiziana Life Sciences, Ltd. (Nasdaq: TLSA) (“Tiziana” or the “Company”), a biotechnology company developing breakthrough immunomodulation therapies with its lead development candidate, intranasal foralumab, a fully human, anti-CD3 monoclonal antibody, today announced that a nasal anti-CD3 (foralumab) preclinical study is nearing completion, and that foralumab could offer a novel and effective treatment for long COVID. This innovative approach works by reducing microglial activation, a key factor in the persistent brain inflammation associated with long COVID, thereby addressing the debilitating neurological and psychiatric symptoms many patients face.

Long COVID is a complex and often debilitating complication following COVID-19 infection. It affects millions worldwide, presenting with symptoms such as persistent fatigue, cognitive impairment (“brain fog”), and psychiatric issues like depression. A growing body of evidence highlights that long COVID is linked to sustained brain inflammation and microglial activation, which disrupts normal brain function. PET imaging studies confirm increased microglial activity in individuals suffering from long COVID, underlining the urgent need for targeted therapies.

Previously, Tiziana conducted a human clinical study in patients with mild to moderate COVID-19 where foralumab was nasally administered once a day for 10 consecutive days. Treatment was well-tolerated and produced significant reduction in lung inflammation as assessed by computerized tomography (CT) scanning. The aim of the human study was to assess safety of intranasal Foralumab and evaluate its potential benefits in treating immune hyperactivity and lung inflammation who were outpatients at the Santa Casa de Misericordia de Santos Hospital in Brazil.

Tiziana’s nasal anti-CD3 platform has previously demonstrated efficacy in reducing microglial activation in models of central nervous system (CNS) diseases, including multiple sclerosis (MS) and Alzheimer’s Disease.

“Long COVID has challenged the medical community with its complexity, but targeting microglial activation through nasal anti-CD3 presents a promising therapeutic avenue,” commented Tiziana’s CEO, Ivor Elrifi. “A study in secondary progressive multiple sclerosis showed both clinical improvement and decreased microglial activation via TSPO PET imaging, providing a solid foundation for this Long COVID hypothesis. Importantly, nasal anti-CD3 was well tolerated, with no serious adverse events.”

About Foralumab

Foralumab, a fully human anti-CD3 monoclonal antibody, is a biological drug candidate that has been shown to stimulate T regulatory cells when dosed intranasally. At present, 10 patients with Non-Active Secondary Progressive Multiple Sclerosis (na-SPMS) have been dosed in an open-label intermediate sized Expanded Access (EA) Program with either an improvement or stability of disease seen within 6 months in all patients. The FDA has recently allowed an additional 20 patients to be enrolled in this EA program. In addition, intranasal foralumab is currently being studied in a Phase 2a, randomized, double-blind, placebo-controlled, multicenter, dose-ranging trial in patients with non-active secondary progressive multiple sclerosis (NCT06292923).