PLRZ

All 120 planned participants randomized across five clinical sites in the United States Raanana, Israel, Oct. 27, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (Nasdaq: PLRZ) (the “Company” or “Polyrizon”), a clinical-stage biotechnology company specializing in the development of innovative intranasal hydrogels, today announced the successful completion of patient enrollment and randomization in its U.S. multicenter clinical study evaluating NASARIX, the Company's proprietary investigational nasal hydrogel product candidate designed to provide protection against airborne allergens.

A new patent application covers Polyrizon's proprietary mucoadhesive platform and its potential applications in nasal drug delivery.

First patient marks Polyrizon's transition into a clinical-stage company. The U.S clinical study is designed to evaluate the efficacy, safety and tolerability of the NASARIX (PL-14) Allergy Blocker in patients with seasonal allergic rhinitis Raanana, Israel, Sept.

RAANANA, ISRAEL, Sept. 04, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd.

RAANANA, ISRAEL, Sept. 03, 2026 (GLOBE NEWSWIRE) -- Polyrizon Ltd. (NASDAQ: PLRZ) (the “Company”), a development-stage biotech company specializing in the development of innovative intranasal hydrogels, today announced that it has entered into definitive agreements with a single institutional investor for the purchase and sale of its Ordinary Shares and pre-funded warrants in a registered direct offering. In a concurrent private placement, the Company also agreed to sell to the same investor pre-funded and investor warrants. Aggregate gross proceeds to the Company from both transactions are expected to be approximately $4.0 million.

Raanana, Israel, Sept. 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, recently announced that it has completed contracting with the fourth and fifth clinical sites participating in its clinical study of NASARIX™ Allergy Blocker (PL-14).

Polyrizon completes contracting with all five U.S. clinical sites and advances its NASARIX™ study toward enrollment of 120 patients Raanana, Israel, Aug. 20, 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 it has completed contracting with the fourth and fifth clinical sites participating in its clinical study of NASARIX™ Allergy Blocker (PL-14).

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”.