Prothena(US:PRTA) ZACKS·2025-11-07 16:36Core Insights - Prothena Corporation (PRTA) reported a third-quarter 2025 adjusted loss per share of 67 cents, which was wider than the Zacks Consensus Estimate of a loss of 60 cents, compared to a loss of $1.10 per share in the same quarter last year [1][7] - Revenues for the quarter totaled $2.4 million, significantly missing the Zacks Consensus Estimate of $25 million, and up from $0.1 million in the year-ago quarter [1][7] Financial Performance - Research and development (R&D) expenses decreased by 42.9% year over year to $28.9 million, attributed to lower clinical trial, manufacturing, personnel, and consulting expenses [4] - General and administrative expenses were reported at $13.2 million, down 21% year over year [4] - As of September 30, 2025, Prothena had $331.7 million in cash, cash equivalents, and restricted cash, with no debt [4][7] Pipeline Developments - Prothena is collaborating with Roche to evaluate prasinezumab for the treatment of Parkinson's disease, with Roche set to initiate the late-stage PARAISO study by the end of 2025, expecting peak sales potential of over $3.5 billion [5] - Novo Nordisk has acquired Prothena's clinical-stage antibody, Coramitug, for treating ATTR amyloidosis with cardiomyopathy, and has initiated the late-stage CLEOPATTRA study [6] - Prothena is advancing an early-stage pipeline for neurological indications in collaboration with Bristol Myers Squibb (BMY), including BMS-986446, which has received Fast Track designation from the FDA for Alzheimer's disease [8][9] Future Expectations - Prothena anticipates earning a clinical milestone when enrollment criteria are met in the ongoing phase III study by Novo Nordisk [8] - The company expects a net cash burn from operating and investing activities in 2025 to be between $170 million and $178 million, with a projected year-end cash balance of approximately $298 million [12] - The projected net loss for 2025 is estimated to be in the range of $240 million to $248 million [12]