Summary of Zura Bio Conference Call Company Overview - **Company**: Zura Bio (NasdaqCM: ZURA) - **CEO**: Sandeep Kulkarni, co-founder, recently returned to the CEO role after Tourmaline Bio acquisition - **Founded**: 2022 - **Pipeline**: Three programs, with a focus on tibulizumab as the lead program [5][6][7] Key Programs and Developments - **Tibulizumab**: A bispecific antibody targeting IL-17 and BAFF, with potential first-in-class status - **Indications**: Focused on hidradenitis suppurativa (HS) and systemic sclerosis (SSc) - **Phase 2 Trials**: Two important readouts expected in 2026 and 2027 [6][10][12] Hidradenitis Suppurativa (HS) - **Mechanism**: Combines IL-17A blockade with BAFF inhibition, targeting multiple pathways to improve efficacy - **Clinical Data**: Previous studies showed high target engagement (98% for IL-17 and BAFF) [15] - **Trial Design**: TibuSHIELD study with 225 patients, randomized to two active drug arms and placebo, primary endpoint at week 16 [29][30] - **Expected Outcomes**: Aiming for a HiSCR75 delta of 20%-25% compared to placebo, reflecting clinically meaningful effects [30][42] Systemic Sclerosis (SSc) - **Opportunity**: No approved treatments for totality of SSc, presenting a significant market opportunity - **Trial Design**: TibuSURE study with 80 patients, focusing on modified Rodnan skin score and CT scans for lung function [60][62] - **Regulatory Flexibility**: Agency recognizes challenges in SSc, showing willingness for new treatment options [62] Market Context and Competitive Landscape - **Unmet Need**: HS affects approximately 8% of the population, with current treatment options being suboptimal [42] - **Competitive Edge**: Zura Bio's tibulizumab is positioned as a first-in-class drug targeting two different pathways, potentially offering a unique treatment profile [43][44] Additional Insights - **Placebo Response Management**: Over-enrollment in trials to mitigate placebo effects, careful site selection, and training for accurate measurement of clinical endpoints [38][39] - **Future Directions**: Data from phase 2 trials will inform phase 3 trial design, with a focus on refining treatment strategies based on patient responses [45][62] Conclusion Zura Bio is strategically positioned in the biotech space with its innovative approach to treating complex autoimmune disorders through bispecific antibodies. The upcoming phase 2 trial results for tibulizumab in HS and SSc will be critical in validating its therapeutic potential and shaping future development plans.

February 11, 2026 Nasdaq Ticker: ZURA Forward-looking statements disclaimer Corporate overview Actual events are difficult or impossible to predict and could differ materially from those expressed or implied in such forward-looking statements, as a result of these risks and uncertainties, which include, but are not limited to: Zura Bio's expectations regarding its product candidates and their related benefits, and Zura Bio's beliefs regarding competing product candidates and products both in development and ...