| Skeletal formula of etrasimod | |
| Clinical data | |
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| Trade names | Velsipity |
| Other names | APD334, APD-334 |
| AHFS/Drugs.com | Monograph |
| MedlinePlus | a623050 |
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| Routes of administration | By mouth |
| Drug class | Sphingosine-1-phosphate receptor modulator |
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| Pharmacokinetic data | |
| Protein binding | 97.9% |
| Metabolism | Liver (CYP2C8, 2C9, 3A4) |
| Elimination half-life | 30 hours |
| Excretion | Feces (82%), kidneys (5%) |
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| Chemical and physical data | |
| Formula | C26H26F3NO3 |
| Molar mass | 457.493 g·mol−1 |
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Etrasimod, sold under the brand name Velsipity, is a medication that is used for the treatment of ulcerative colitis. [6] It is a selective sphingosine-1-phosphate (S1P) receptor modulator that modifies the activity of the immune system. [6] It is taken by mouth. [6]
The most common side effects include lymphopenia (low levels of lymphocytes) and headache. [8]
Etrasimod was discovered by Arena Pharmaceuticals, with subsequent development by Pfizer. [10] Etrasimod was approved for medical use in the United States in October 2023, [6] and in the European Union in February 2024. [8]
Etrasimod is used for the treatment of moderate to severe ulcerative colitis. [6] [8]
It works by causing T cells to become trapped in the lymph nodes, preventing them from entering the bloodstream, from where they would travel to other tissues in the body and mediate inflammation. [11] [12] [13] [14] [15] [16]
Velsipity was approved by the US Food and Drug Administration (FDA) in October 2023. [6] [17] [18]
In December 2023, the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Velsipity, intended for the treatment of ulcerative colitis. [8] The applicant for this medicinal product is Pfizer Europe MA EEIG. [8] Etrasimod was approved for medical use in the European Union in February 2024. [8]
Etrasimod is the international nonproprietary name. [19]