Okogen Expands Antiviral Pipeline with Ranpirnase Acquisition, Targeting Multiple Therapeutic Areas

Okogen Inc., a biotechnology company developing antiviral therapeutics, announced the acquisition of the global intellectual property portfolio and development assets for ranpirnase from Orgenesis Inc., strengthening the company’s lead ophthalmic program and establishing a foundation for expansion into additional antiviral indications. The acquisition expands the company’s development pipeline beyond ocular infections into focused therapeutic areas including eyecare, systemic infectious disease, dermatology, and medical countermeasures for high-consequence pathogens such as filoviruses.

The company prioritizes rapid advancement of its lead ranpirnase program, OKG-0303, an investigational therapy for acute infectious conjunctivitis in a disease area where treatment remains fragmented with no single therapy addressing both viral and bacterial causes. This addresses a significant clinical need identified in medical literature, such as the systematic review published in JAMA that examined diagnosis and treatment approaches for conjunctivitis.

Ranpirnase is a ribonuclease enzyme that disrupts viral replication inside infected cells through a host-directed mechanism. By degrading intracellular RNA involved in protein synthesis, the molecule creates a translational bottleneck that limits production of viral proteins required for viral replication. Because this mechanism targets a host process essential to viral propagation, ranpirnase represents a differentiated approach to antiviral development with the potential to reduce susceptibility to resistance observed with traditional direct-acting antivirals. Research published in PMC details the mechanism of action and biological activity of this compound.

Okogen advances ranpirnase as a potential antiviral medical countermeasure and engages with U.S. and international government agencies to evaluate its role against high-consequence pathogens such as Marburg and Sudan viruses while progressing parallel research in respiratory viruses including influenza and RSV. The acquisition establishes core development pillars spanning ophthalmology, respiratory viruses, medical countermeasures for high-consequence pathogens, and dermatologic viral diseases. Ranpirnase has been evaluated in clinical trials involving more than 1,000 patients, generating a substantial body of safety and translational data supporting continued development across these therapeutic areas.

The expansion into medical countermeasures for high-consequence pathogens represents a strategic move as global health agencies seek broad-spectrum antiviral approaches. This development comes amid ongoing research into antiviral treatments for various infectious diseases, including studies referenced in publications like PubMed that examine viral infections in different clinical contexts. The acquisition positions Okogen to address multiple unmet medical needs across its newly defined therapeutic pillars while leveraging existing clinical data to accelerate development timelines.

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