Spesolimab
As of the edition of 20 October 2026, Spesolimab is an antibody: marketed, first approved in 2022 (US); acts on IL1RL2; US protection ends in 2034.
Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.
The drug
- Status
- Marketed; latest approval 2023
- Kind
- Antibody
- Brand name
- Spevigo
- First approved
- 1 September 2022 (US)
- Approvals on record
- 9 in 4 regions
- Holder of the most recent approval
- LEO Pharma; 4 holders in all
- Registered trials
- 34, 8 stopped early
- Disease areas
- Skin and connective tissue; Digestive system; Infections; Inherited and neonatal; Immune system
US protection
US protection ends in 2034.
US protection ends in 2034, computed as 12 years from the first US licence because FDA publishes no date for this product. The application that gives this date is held by LEO Pharma. The date is computed, not published.
This is the US only, and it is not the date generics or biosimilars can enter.
The exact date and the listings behind it
In the product2 listings count towards this date. The exact date and each listing are in the product.
See the exact date and the 2 listings behind itRequest access. Nothing is shown until you do.
Target
| Gene | Protein | UniProt |
|---|---|---|
| IL1RL2 | Interleukin-1 receptor-like 2 | Q9HB29 |
Registered trials
| Phase | Trials | Completed | Active | Stopped early |
|---|---|---|---|---|
| Phase not stated | 2 | 1 | 0 | 1 |
| Phase 1 | 7 | 7 | 0 | 0 |
| Phase 2 | 17 | 11 | 1 | 5 |
| Phase 3 | 7 | 4 | 1 | 2 |
| Phase 4 | 1 | 0 | 1 | 0 |
| All trials | 34 |
Who has held its approvals
| Company | Role | Years |
|---|---|---|
| Boehringer Ingelheim | Originator and Lead sponsor of trials | 2015 to now |
| LEO Pharma | Applicant, Acquired holder and Lead sponsor of trials | 2019 to now |