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Polyrizon Ltd. is an Israeli biotechnology firm specializing in the creation of medical device hydrogels, delivered as nasal sprays. These innovative sprays are designed to form a protective barrier within the nasal cavity, preventing viruses and allergens from attaching to the nasal epithelial tissue. Its current development pipeline features several targeted solutions, including PL-14, formulated to block nasal allergies; PL-15, aimed at combating COVID-19; and PL-16, for influenza prevention. Established in 2005, the company operates from its headquarters in Ra'anana, Israel.
Raanana, Israel, July 02, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (the “Company” or “Polyrizon”), a development-stage biotech company specializing in the development of innovative intranasal hydrogels, today announced successful results from its biocompatibility evaluation program for its proprietary NASARIXTM Allergy Blocker nasal spray, with all required biological safety tests meeting their predetermined acceptance criteria.
Raanana, Israel, June 29, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (the “Company” or “Polyrizon”), a development-stage biotech company specializing in the development of innovative intranasal hydrogels, announced it has received central IRB approval to begin its first human clinical trial for NASARIX™, the Company's innovative nasal spray designed to block airborne allergens.
Raanana, Israel, June 17, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (the “Company” or “Polyrizon”), a development-stage biotech company specializing in the development of innovative intranasal hydrogels, today announced the publication of U.S. patent application No. US 2024/0358741 A1, titled “Mucoadhesive Polymers for Nasal Drug Delivery”.
New performance and characterization study in collaboration with leading European medical center marks a critical milestone in the validation of the NASARIX™ allergy blocker's protective barrier function Raanana, Israel, June 15, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (the “Company” or “Polyrizon”), a development-stage biotech company specializing in the development of innovative intranasal hydrogels, today announced the execution of an agreement with a leading, internationally recognized European university medical center, alongside a contract with a specialized clinical research organization (CRO), to conduct a human study as part of its verification and validation (V&V) program for its NASARIX™ (PL-14) Allergy Blocker.
Raanana, Israel, June 10, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (the “Company” or “Polyrizon”), a development-stage biotech company specializing in the development of innovative intranasal hydrogels, today announced that the European Patent Office (EPO) has completed the technical preparations for the publication of the Company's European patent application entitled “Mucoadhesive Polymers for Nasal Drug Delivery.” The application was published under European publication number EP 4751737. The patent application covers Polyrizon's proprietary Trap & Target™ (T&T) mucoadhesive polymer technology platform for nasal drug delivery. The technology is designed to enhance the interaction between pharmaceutical formulations and the nasal mucosa, potentially increasing formulation retention, improving drug absorption, and enabling more efficient delivery of active pharmaceutical ingredients through the nasal route.