Polyrizon Ltd

PLRZ

Market cap $15.6M

Executed in accordance with FDA human factors and usability engineering guidance, the study is intended to de-risk downstream regulatory review and support a streamlined path toward clinical development Raanana, Israel, Jan. 22, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (“Polyrizon” or the “Company”), a pre-clinical-stage biotechnology company developing intranasal protective solutions, today announced the initiation of a key usability (Human Factors) study program for its lead product candidate, NASARIX™, an innovative intranasal allergy blocker designed for broad consumer use.

Company Remains Fully Committed to Advancing Its Core Intranasal Medical Pipeline, alongside examining new opportunities including in fields of aviation, AI and defense

As part of the branding process, Polyrizon conducted comprehensive trademark screening across the U.S. and European markets Raanana, Israel, Jan. 08, 2026 (GLOBE NEWSWIRE) --  Polyrizon Ltd. Polyrizon Ltd.

Raanana, Israel, Jan. 05, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. Polyrizon Ltd. (Nasdaq: PLRZ) (“Polyrizon” or the “Company”), a pre-clinical-stage biotechnology company developing intranasal protective solutions today announced positive results from a new in-vitro pre-clinical study evaluating the allergen-blocking performance of its PL-14 Allergy Blocker formulation compared to hydroxypropyl methylcellulose (HPMC), an accepted and standard comparator used in nasal barrier products.

Raanana, Israel, Jan. 02, 2026 (GLOBE NEWSWIRE) -- As the 2025-2026 flu season intensifies across the United States, a mutated strain of influenza A is driving most cases, sparking concerns about a potentially tough winter ahead. According to the latest CDC estimates (as of late December 2025), flu has already caused at least 4.6 million illnesses, 49,000 hospitalizations, and 1,900 deaths nationwide.

Company to Continue Advancing Product Development and Regulatory Progress of Its Core Medical Pipeline Raanana, Israel, Dec. 29, 2025 (GLOBE NEWSWIRE) -- Polyrizon Ltd. Polyrizon Ltd.

The PL-16 Viral Blocker has shown over 90% success in protection of cells against viruses Raanana, Israel, Dec. 19, 2025 (GLOBE NEWSWIRE) -- Polyrizon Ltd., a pre-clinical-stage biotechnology company developing intranasal protective solutions, announced today that it has submitted a Pre-Request for Designation (Pre-RFD) to the U.S. Food and Drug Administration (FDA) for its PL-16 Viral Blocker, a non-pharmacological intranasal product designed to reduce exposure to airborne respiratory viruses, including influenza and cold viruses, by forming a temporary physical barrier on the nasal mucosa.

Ra'anana, Israel, Dec. 11, 2025 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (“Polyrizon” or the “Company”), a biotechnology company focusing on the development of intranasal products, today announced new results from its ongoing preclinical evaluation of its proprietary intranasal naloxone hydrogel formulation, demonstrating promising permeation kinetics that complement the Company's previously reported stability and mucoadhesion successes.

Ra'anana, Israel, Dec. 08, 2025 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (“Polyrizon” or the “Company”), a biotechnology company focusing on the development of intranasal products, today announces that it has successfully completed a pre-submission meeting with the U.S. Food and Drug Administration (FDA) regarding its PL-14 Allergy Blocker product, a novel nasal spray designed to provide protective intranasal barrier functionality.

Ra'anana, Israel , Dec. 04, 2025 (GLOBE NEWSWIRE) -- In an era where airborne threats like allergens and viruses disrupt daily life for millions, a small biotech innovator in Israel is quietly reshaping approaches to respiratory defense. Polyrizon Ltd. (Nasdaq: PLRZ), a development-stage biotechnology company, aims to transform a bold lab-born vision into a scalable reality. With the recent announcement of a pivotal manufacturing milestone, Polyrizon is no longer just a promising startup—it is advancing its efforts to develop non-pharmacological solutions that could shield global populations from seasonal woes and beyond.