v3.25.2
Operating expenses
6 Months Ended
Jun. 30, 2025
Expenses by nature [abstract]  
Operating expenses Operating expensesNote 19.1. Sales and marketing
(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
The sales and marketing expenses as of June 30, 2025 consist primarily in consulting costs associated with market research in
preparation for the Group's future sales and commercialization efforts in the U.S. The decrease for the three- and six-month periods
ended June 30, 2025 compared to June 30, 2024 was predominantly driven by a reduction in headcount as well as one-time costs that
were incurred in 2024 for our corporate re-branding, including our new website.
Note 19.2. Research and development
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
For the six-month period ended June 30, 2025, research and development expenses were €77,946 thousand, as compared to
€64,650 thousand for the six-month period ended June 30, 2024, and consisted primarily of expenses related to the UC clinical
program for €51,929 thousand, the CD clinical program for €7,416 thousand, as well as transversal activities for €14,829 thousand.
This increase was primarily due to a €6,499 thousand increase in expenses related to the CD program, resulting from the progression
of the Phase 2b trials in CD and an increase in transversal activities related to the overall expansion of the research and development
headcount to support the Group's organizational growth and the issuance of new equity awards to officers and employees in research
and development. Similar factors have driven the increase for the three-month period ended June 30, 2025 compared to 2024.
Note 19.3. General and administrative 
(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
For the six-month period ended June 30, 2025, general and administrative expenses were €16,303 thousand, as compared to €17,932
thousand for the six-month period ended June 30, 2024. This decrease was primarily due to a decrease in personnel costs of
€1,240 thousand, or 11%, mainly resulting from the expense recognition pattern of equity awards granted to certain of the Group's
officers and employees, many of which were issued in connection with the Group's U.S. initial public offering and listing on Nasdaq in
October 2023, as well as strict adherence to the approved budget, which includes savings through the gating of non essential spend.
These were partially offset by increased legal and professional fees and other costs associated with operating as a dual-listed public
company. Similar factors have driven the decrease for the three-month periods ended June 30, 2025 compared to 2024.