Accrued expenses consisted of the following (in thousands): | | | | | | | | | | | | | June 30,
2026 | | December 31,
2025 | | External research and development expenses | $ | 4,946 | | | $ | 9,672 | | | Employee related expenses | 3,225 | | | 5,220 | | | Sublicense and license fees | 1,187 | | | 5,501 | | | Intellectual property and patent related fees | 1,700 | | | 2,105 | | | Professional service expenses | 381 | | | 232 | | | Employee termination benefits | 25 | | | 1,555 | | | Restructuring contract costs | 5,606 | | | 7,769 | | | Other expenses | 295 | | | 556 | | | Total accrued expenses | $ | 17,365 | | | $ | 32,610 | |
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