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Trade and other payables and accrued expenses (Details) - CHF (SFr) SFr in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Trade and other payables and accrued liabilities [Line Items] |  |
Trade and other payables | SFr 929 | SFr 2,003
Accrued research and development costs | 5,360 | 10,361
Accrued payroll expenses | 2,898 | 3,562
Other accrued expenses | 1,159 | 2,813
Total | 9,417 | 16,736
Accruals for performance related remuneration | 2,100 | 2,300
Accrual of performance-related remuneration | SFr 2,898 | 3,562
Accrued stamp duty |  | 800
Janssen |  |
Trade and other payables and accrued liabilities [Line Items] |  |
Accrued research and development costs |  | SFr 3,700

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- Definition The amount of current accrued expenses and other current liabilities. [Refer: Accruals; Other current liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of accruals for employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services. [Refer: Accruals classified as current] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78&doctype=Standard -URIDate 2021-03-24 + Details
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