Idelalisib
| Idelalisib structure | |
| Clinical data | |
|---|---|
| Pronunciation | /aɪˈdɛləlɪsɪb/ eye-DEL-ə-li-sib | 
| Trade names | Zydelig | 
| Other names | GS-1101, CAL-101 | 
| AHFS/Drugs.com | Monograph | 
| MedlinePlus | a614040 | 
| Pregnancy category | 
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| Routes of administration | Oral | 
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| Pharmacokinetic data | |
| Protein binding | >84% | 
| Metabolism | Aldehyde oxidase (~70%), CYP3A4 (~30%); UGT1A4 (minor) | 
| Metabolites | GS-563117 (inactive in vitro) | 
| Onset of action | Tmax = 1.5 hours | 
| Elimination half-life | 8.2 hours | 
| Excretion | Feces (78%), urine (14%) | 
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| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.235.089 | 
| Chemical and physical data | |
| Formula | C22H18FN7O | 
| Molar mass | 415.432 g·mol−1 | 
| 3D model (JSmol) | |
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Idelalisib, sold under the brand name Zydelig, is a medication used to treat certain blood cancers. Idelalisib acts as a phosphoinositide 3-kinase inhibitor; more specifically, it blocks P110δ, the delta isoform of the enzyme phosphoinositide 3-kinase. It was developed by Gilead Sciences. It is taken orally (swallowed by mouth).