# Arikayce Posts 21% Greater Symptom Improvement in First-Line MAC Lung Trial

- slug: arikayce-posts-21-greater-symptom-improvement-in-first-line-mac-lung-trial
- date: 2026-03-23
- category: Biotech & Life Sciences

Insmed's Arikayce Clears Phase 3 in First-Line MAC Lung Disease, Setting Up a Second Blockbuster

Insmed announced [positive topline results](https://investor.insmed.com/2026-03-23-Insmed-Announces-Positive-Topline-Results-from-Phase-3b-ENCORE-Study-of-ARIKAYCE-R-Amikacin-Liposome-Inhalation-Susp...

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