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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Operating expenses:        
Research and development $ 22,195 $ 20,209 $ 44,450 $ 40,183
General and administrative 9,773 6,915 18,703 13,554
Total operating expenses 31,968 27,124 63,153 53,737
Loss from operations 31,968 27,124 63,153 53,737
Other expenses (income), net:        
Interest income (2,663) (2,488) (5,403) (5,218)
Interest expense 745 734 1,477 1,486
Loss on extinguishment of debt     488  
Other expenses, net 177 205 264 168
Total other income, net (1,741) (1,549) (3,174) (3,564)
Net loss before income taxes 30,227 25,575 59,979 50,173
Provision for income taxes 0 240 0 258
Net loss 30,227 25,815 59,979 50,431
Other comprehensive loss (income):        
Unrealized loss (gain) on available-for-sale investments 299 (306) 253 (450)
Total comprehensive loss $ 30,526 $ 25,509 $ 60,232 $ 49,981
Net loss per share of common shares, basic $ 0.43 $ 0.51 $ 0.88 $ 0.99
Net loss per share of common shares, diluted $ 0.43 $ 0.51 $ 0.88 $ 0.99
Weighted-average common shares outstanding, basic [1] 69,724,761 51,019,363 68,473,598 50,997,987
Weighted-average common shares outstanding, diluted [1] 69,724,761 51,019,363 68,473,598 50,997,987
[1] Pre-funded warrants of 2,735,295 are included within the weighted-average number of common shares calculation for 2026.