Financial Data and Key Metrics Changes - Total revenue for Q3 2025 was $27.6 million, up from $16 million in Q3 2024, primarily due to a $25 million milestone from Janssen and $1 million in royalties from Jazz Pharmaceuticals and BeiGene [9][10]. - Overall operating expenses decreased slightly to $49.7 million in Q3 2025 from $50.2 million in Q3 2024, a reduction of 1% [10]. - Net loss improved to $19.6 million in Q3 2025 compared to a net loss of $29.9 million in Q3 2024, attributed to increased revenue [10][11]. - Cash, cash equivalents, and marketable securities totaled $299.4 million as of September 30, 2025, down from $324.2 million at the end of 2024 [11]. Business Line Data and Key Metrics Changes - The company recognized a $25 million development milestone from Jazz Pharmaceuticals related to the clinical progress of pacritimab, contributing significantly to revenue [6][9]. - Royalty revenues of $1 million were earned based on Ziihera net product sales by Jazz and BeiGene [8]. Market Data and Key Metrics Changes - The company continues to see strong momentum in its partnered programs, with Jazz presenting positive trial data at ESMO [5][6]. - The first patient has been dosed in the phase one clinical trial of ZW251, targeting GPC3 in hepatocellular carcinoma, indicating ongoing clinical development [4][17]. Company Strategy and Development Direction - The company aims to leverage partnerships to accelerate development and maintain control over R&D innovations while de-risking clinical developments [25][27]. - The focus remains on advancing programs with clear differentiation and strong scientific rationale, utilizing partnerships to offset development risks [27]. - The company is committed to disciplined capital allocation to drive sustainable long-term returns [9][25]. Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the company's outlook, citing the strength of the pipeline and the successful execution of clinical trials [8][11]. - The company anticipates that existing cash resources, combined with expected regulatory milestones, will fund operations into the second half of 2027 [11]. Other Important Information - The company completed share repurchases of $22.7 million under its previously authorized program, reflecting confidence in its outlook [8]. - The decision to discontinue the development of ZW171 was made to prioritize programs with clearer paths to patient benefit [20][21]. Q&A Session Summary Question: Thoughts on the update in the PFS analysis for Horizon GEA 01 - Management aligned with Jazz's regulatory strategy regarding the readout of Horizon GEA 01 and did not provide additional comments [30]. Question: Implications of ZW191 data for GPC3 and potential development strategies - Management expressed intrigue regarding the GPC3 construct and emphasized the importance of safety in the hepatocellular carcinoma population [31][33]. Question: Insights on GPC3 payload and preclinical efficacy expectations - Management noted that while topo1 is not standard for liver cancer, there is precedent for its use, and they believe their ADC can deliver effective treatment [38][44]. Question: Confidence in GPC3 activity in the post-IO setting - Management indicated that GPC3 expression levels are not expected to be modulated by IO treatment, supporting their development plan [60][62]. Question: Expectations on durability for ZW191 and potential for partnerships - Management found early data from ZW191 encouraging and indicated ongoing discussions with potential partners [70][71]. Question: Correlation between H-score and PS2 plus scoring methodologies - Management confirmed that H-score is a validated method for evaluating expression levels and correlates well with PS2 plus scores [81][84].