Operating expenses - Disclosure of research and development expenses (Details) - EUR (€) € in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Disclosure of attribution of expenses by nature to their function [line items] | ||||
| Operating expenses | € 47,589 | € 40,954 | € 95,783 | € 86,811 |
| Research and development expenses | ||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||
| Sub-contracting, studies and research | 30,139 | 20,207 | 59,292 | 47,282 |
| Personnel costs | 5,558 | 4,868 | 10,627 | 9,421 |
| Consulting and professional fees | 1,867 | 2,280 | 5,848 | 5,489 |
| Intellectual property fees | 238 | 600 | 476 | 941 |
| Other research and development expenses | 843 | 952 | 1,703 | 1,519 |
| Operating expenses | € 38,645 | € 28,907 | € 77,946 | € 64,650 |