Financial Performance - Avidity reported a cash balance of approximately 1.4billionasofMarch31,2025,supportingitslate−stageclinicalprogramsandcommerciallaunchpreparations[5].−CollaborationrevenuesforQ12025were1.6 million, down from 3.5millioninQ12024,primarilyduetotheabsenceofrevenuerecognitionfromaprioryearpartnership[5].−ThenetlossforQ12025was115.8 million, compared to a net loss of 68.9millioninQ12024,withanetlosspershareof0.90[13]. - Total operating expenses for Q1 2025 were 133.1million,significantlyhigherthan80.7 million in Q1 2024[13]. Research and Development - Research and development expenses increased to 99.5millioninQ12025,comparedto66.8 million in Q1 2024, driven by advancements in del-desiran, del-brax, and del-zota[6]. - Avidity plans to submit its first Biologics License Application (BLA) for del-zota by the end of 2025, following positive topline data from the EXPLORE44 trial[2]. - The company is on track to share key regulatory updates for del-brax in Q2 2025, including a potential accelerated approval path in the U.S.[2]. - Enrollment for the ongoing Phase 3 HARBOR trial for del-desiran is expected to be completed by mid-2025, with marketing application submissions planned starting in 2026[3]. - Avidity completed enrollment for the FORTITUDE biomarker cohort for del-brax with 51 participants, ahead of original guidance[3]. Administrative Expenses - General and administrative expenses rose to 33.6millioninQ12025,upfrom13.9 million in Q1 2024, mainly due to higher personnel costs[6].