Prothena(US:PRTA)2026-02-19 22:32Financial Data and Key Metrics Changes - In 2025, Prothena reported a net cash used in operating and investing activities of $163.7 million, which was favorable compared to the guidance range of $170 million to $178 million [37] - The net loss for 2025 was $244.1 million, aligning with the guidance range of $240 million to $248 million [37] - As of December 31, 2025, Prothena had $308.4 million in cash, cash equivalents, and restricted cash, exceeding the guidance of $298 million [38] - For 2026, the expected net cash used in operating and investing activities is projected to be between $50 million and $55 million, with an estimated net loss of $67 million to $72 million [38][39] Business Line Data and Key Metrics Changes - Prothena's clinical pipeline saw significant advancements, with two partnered programs, prasinezumab and coramitug, moving into phase III clinical trials [6][7] - The phase II TargetTau-1 clinical trial for BMS-986446 in early Alzheimer's disease was fully enrolled in 2025, with completion expected in the first half of 2027 [8] - The company introduced its CYTOPE technology, demonstrating potential for precise targeting of intracellular disease pathways [9][30] Market Data and Key Metrics Changes - The phase III PARAISO trial for prasinezumab is expected to enroll approximately 900 participants, with primary completion anticipated in 2029 [16] - The phase III CLEOPATRA trial for coramitug is set to enroll around 1,280 ATTR-CM patients, with primary completion also expected in 2029 [23] - Prothena's partnered clinical programs have the potential to deliver up to approximately $3 billion in future milestone payments, in addition to any royalties [12] Company Strategy and Development Direction - Prothena aims to capture value from clinical partnerships, with potential clinical milestone payments of up to $105 million in 2026 [10][41] - The company plans to implement a share redemption program and invest in its preclinical portfolio to support ongoing partnering efforts [10][41] - Prothena is focused on advancing its knowledge of the preclinical portfolio to explore research collaborations and licensing agreements [11] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the robust pipeline addressing significant unmet needs for millions of patients [40] - The company highlighted the importance of upcoming milestones and the potential for significant medical advances in areas with high unmet needs [46] - Management emphasized the strategic importance of the share redemption program and the potential for clinical milestone payments from partners [47][48] Other Important Information - Prothena's cash position as of year-end 2025 was $308.4 million, allowing for prudent capital utilization to support future potential economics from partner programs [11] - The company is engaged in research collaborations exploring multiple approaches for applying its CYTOPE technology [10] Q&A Session Summary Question: Key milestones for partnered program trials for PARAISO and CLEOPATRA - Management outlined that significant activities are expected in 2026 and 2027, including data from the CYTOPE activities and the phase II tau program with Bristol Myers Squibb [44][46] Question: Keeping the amyloid beta story alive against competitors - Management discussed the advantages of the PRX-012 transferrin-based approach and the potential for improved profiles compared to existing therapies [51][55] Question: Data sharing from the phase I study of PRX-019 - Management indicated that data will be shared with Bristol Myers Squibb, who holds global rights to the program, and will decide on public dissemination [62][68] Question: Data necessary for securing a partnership for the CYTOPE platform - Management highlighted the importance of robust in-vivo data demonstrating the technology's ability to target intracellular disease pathways effectively [71][75]