Chemical formula: C₅₆H₈₇NO₁₆ Molecular mass: 1,030.287 g/mol PubChem compound: 23724530
Temsirolimus is a selective inhibitor of mTOR (mammalian target of rapamycin). Temsirolimus binds to an intracellular protein (FKBP-12), and the protein/temsirolimus complex binds and inhibits the activity of mTOR that controls cell division. In vitro, at high concentrations (10-20 M), temsirolimus can bind and inhibit mTOR in the absence of FKBP-12. When mTOR activity is inhibited, its ability to phosphorylate, and thereby control the activity of protein translation factors (4E-BP1 and S6K, both downstream of mTOR in the P13 kinase/AKT pathway) that control cell division, is blocked.
This medicinal substance has been classified in the anatomical therapeutic chemical (ATC) classification according to its main therapeutic use as follows:
| ATC code | Group title | Classification |
|---|---|---|
| L01EG01 | Temsirolimus | L Antineoplastic and immunomodulating agents → L01 Antineoplastic agents → L01E Protein kinase inhibitors → L01EG Mammalian target of rapamycin (mTOR) kinase inhibitors |
Competent medicine agencies globally have authorized commercialization of this active ingredient according to these medication package inserts (MPIs):
| Title | Information Source | Document Type | |
|---|---|---|---|
| TORISEL Concentrate and solvent for solution for infusion | European Medicines Agency (EU) | MPI, EU: SmPC |
Temsirolimus is an active ingredient of these brands:
Austria (AT)Brazil (BR)Canada (CA)Cyprus (CY)Estonia (EE)Finland (FI)France (FR)Ireland (IE)Israel (IL)Japan (JP)Lithuania (LT)Mexico (MX)Netherlands (NL)Poland (PL)Romania (RO)Singapore (SG)South Africa (ZA)Spain (ES)Turkey (TR)United Kingdom (UK)Note the following: The list of brand names is continuously updated, and thus does not include the total of products circulating worldwide. |
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