FDA granted Breakthrough Therapy Designation for AAV2-hAQP1 for the treatment of Grade 2 and Grade 3 late xerostomia caused by radiotherapy for cancers of the upper aerodigestive tract MeiraGTx to hold a program update and present long-term data for AAV2-hAQP1 program for the treatment of Grade 2/3 Radiation-Induced Xerostomia on Thursday, April 16 th , 2026 LONDON and NEW YORK, March 26, 2026 (GLOBE NEWSWIRE) -- MeiraGTx Holdings plc (Nasdaq: MGTX), a vertically integrated, clinical stage genetic medicines company, today announced financial and operational results for the fourth quarter and full-year ended December 31, 2025, and provided a corporate update. “We are delighted to have been awarded Breakthrough Designation for our AAV2-hAQP1 treatment for Grade 2 and Grade 3 late xerostomia caused by radiotherapy for cancers of the upper aerodigestive tract,” said Alexandria Forbes, Ph.D.