Ireland’s Horizon Therapeutics became the first to win regulatory approval in the United States for the treatment of Thyroid Eye Disease (TED), a progressive autoimmune disorder that can threaten the vision of those afflicted.

An experimental drug could offer hope for restoring damaged brain cells in Parkinson’s patients, scientists said on Wednesday, although they cautioned that a clinical trial was not able to prove the treatment slowed or halted the neurodegenerative disease.