In May, the company announced the failure of the monoclonal antibody birtamimab to improve mortality in a phase 3 trial of ...

Prothena will cut 63% of its workforce and evaluate a “range of business options.” Elsewhere, Zealand revealed data for a ...

Roche and Prothena are advancing Prasinezumab to Phase 3 for Parkinson’s despite mixed Phase 2 results. Click here to read an ...

Prothena Corp shares climbed 5% in after-hours trading on Friday after the company said it expects to reduce its 2025 net ...

Prothena Corporation plc (NASDAQ:PRTA) is among the best NASDAQ stocks under $50 to buy. Roche, a partner of Prothena ...

DUBLIN--(BUSINESS WIRE)-- Prothena Corporation plc (NASDAQ:PRTA) today announced that the Company has initiated an approximate 63% reduction in its workforce to substantially reduce its operating ...

Roche and Prothena are forging ahead to late-stage studies for their investigational Parkinson’s disease antibody ...

The Swiss drugmaker said it was “encouraged” by the signs of effectiveness of the drug, developed by biotech Prothena, showed ...

Citizens JMP lowered the firm’s price target on Prothena Corporation plc (NASDAQ:PRTA) to $29 from $78 but kept an Outperform rating on the shares. The notable price target decrease came after ...

Prothena has buried birtamimab for the second time. A phase 3 trial of the anti-amyloid antibody in the rare disease AL amyloidosis missed its primary endpoint, prompting the biotech to end ...

DUBLIN--(BUSINESS WIRE)--Prothena Corporation plc (NASDAQ:PRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation ...