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Segment Information | 6 Months Ended
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Jun. 30, 2025
Segment Reporting [Abstract] |
Segment Information | 7. Segment Information The Company operates and manages its business as one operating and reportable segment, which is the business of researching, developing and commercializing transformative therapeutics to treat a broad spectrum of retinal diseases. The chief operating decision maker (“CODM”) is the Chief Executive Officer. The CODM uses net loss to allocate resources and assess performance when making decisions on the timing and extent of the Company's development programs for its product candidates. The assets are managed on a consolidated basis as reported on the condensed consolidated balance sheets. The significant expense categories within net loss are presented on the condensed consolidated statements of operations. The research and development expenses have been disaggregated as follows (in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Tarcocimab program expenses |  | $ | 11,886 |  |  | $ | 9,157 |  |  | $ | 26,162 |  |  | $ | 15,126 |
KSI-501 and KSI-101 program expenses |  |  | 5,309 |  |  |  | 1,080 |  |  |  | 9,526 |  |  |  | 3,301 |
ABC Platform and other program expenses |  |  | 6,421 |  |  |  | 3,115 |  |  |  | 12,066 |  |  |  | 5,701 |
Payroll and personnel expenses |  |  | 14,109 |  |  |  | 14,492 |  |  |  | 28,379 |  |  |  | 28,851 |
Facilities and other research and development expenses |  |  | 5,035 |  |  |  | 4,670 |  |  |  | 10,271 |  |  |  | 9,466 |
Total research and development expenses |  | $ | 42,760 |  |  | $ | 32,514 |  |  | $ | 86,404 |  |  | $ | 62,445 |

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- Definition The entire disclosure for reporting segments including data and tables. 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