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Trade and Other Payables - Additional Information (Details) € in Thousands, $ in Millions | Dec. 31, 2021 EUR (€) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 EUR (€) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 EUR (€)
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Disclosure Of Trade And Other Payables [Abstract] |  |  |  |  |
Accrued expenses | € 6,201 |  | € 13,809 |  | € 18,682
Accrued expenses related to clinical trials | 400 | $ 0.9 | 2,300 | $ 9.6 |
Accrued expenses related to clinical trials requiring conversion to euros | 800 |  | 7,800 |  |
Accrued expenses related to clinical trials based on the exchange rate, net | 1,200 |  | 10,100 |  |
VAT payables | € 23,725 |  | € 314 |  | € 2

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- Definition Accrued Expenses, Clinical Trials Based On Exchange Rate, Net + References No definition available. + Details
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- Definition The amount of liabilities to pay for goods or services that have been received or supplied but have not been paid, invoiced or formally agreed with the supplier, including amounts due to employees. + 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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