Operating expenses (Tables)

6 Months Ended

Jun. 30, 2025

Expenses by nature [abstract]

Disclosure of expenses by nature


(amounts in thousands of euros)
SALES AND MARKETING		FOR THE THREE MONTHS ENDED JUNE 30, 2024		FOR THE THREE MONTHS ENDED JUNE 30, 2025		FOR THE SIX MONTHS ENDED JUNE 30, 2024		FOR THE SIX MONTHS ENDED JUNE 30, 2025
Personnel costs		353		474		1,443		944
Consulting and professional fees		1,547		166		2,093		384
Other sales and marketing expenses		352		34		693		206
Sales & Marketing		2,252		674		4,229		1,534

Research and development expenses break down as follows:


(amounts in thousands of euros)
RESEARCH AND DEVELOPMENT EXPENSES		FOR THE THREE MONTHS ENDED JUNE 30, 2024		FOR THE THREE MONTHS ENDED JUNE 30, 2025		FOR THE SIX MONTHS ENDED JUNE 30, 2024		FOR THE SIX MONTHS ENDED JUNE 30, 2025
Sub-contracting, studies and research		20,207		30,139		47,282		59,292
Personnel costs		4,868		5,558		9,421		10,627
Consulting and professional fees		2,280		1,867		5,489		5,848
Intellectual property fees		600		238		941		476
Other research and development expenses		952		843		1,519		1,703
Research and development expenses		28,907		38,645		64,650		77,946


(amounts in thousands of euros)
GENERAL AND ADMINISTRATIVE EXPENSES		FOR THE THREE MONTHS ENDED JUNE 30, 2024		FOR THE THREE MONTHS ENDED JUNE 30, 2025		FOR THE SIX MONTHS ENDED JUNE 30, 2024		FOR THE SIX MONTHS ENDED JUNE 30, 2025
Personnel costs		5,898		5,244		11,172		9,932
Consulting and professional fees		2,331		1,768		3,848		3,703
Other general and administrative expenses		1,566		1,258		2,912		2,668
General and administrative expenses		9,796		8,270		17,932		16,303