Accrued expenses Accrued expenses consisted of the following as of September 30, 2023 and December 31, 2022: | | | | | | | | | | | | (in thousands) | September 30, 2023 | | December 31, 2022 | Accrued clinical expenses | $ | 8,544 | | | $ | 14,822 | | Accrued payroll and related expenses | 7,168 | | | 11,558 | | Accrued manufacturing expenses | 4,250 | | | 11,536 | | Accrued restructuring expenses | 4,190 | | | — | | Accrued research and non-clinical expenses | 3,062 | | | 2,767 | | Accrued professional fees | 1,583 | | | 1,865 | | Accrued other | 524 | | | 636 | | | $ | 29,321 | | | $ | 43,184 | |
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