Product Information
Registration Status: ActiveSIN15701P
IRINOTECAN HYDROCHLORIDE ADVAGEN CONCENTRATE FOR SOLUTION FOR INFUSION 20MG/ML is approved to be sold in Singapore with effective from 2019-05-29. It is marketed by ADVAGEN PTE LTD, with the registration number of SIN15701P.
This product contains Irinotecan 20 mg/ ml in the form of INFUSION, SOLUTION CONCENTRATE. It is approved for INTRAVENOUS use.
This product is manufactured by Sichuan Huiyu Pharmaceutical Co. in CHINA.
It is a Prescription Only Medicine that can only be obtained from a doctor or a dentist, or a pharmacist with a prescription from a Singapore-registered doctor or dentist.
Product Reference
Important Note: For generic product, the SPC/PIL provided may not be brand specific.
{{/items}} {{^items}}Description
Irinotecan is an antineoplastic enzyme inhibitor primarily used in the treatment of colorectal cancer. It is a derivative of camptothecin that inhibits the action of topoisomerase I. Irinotecan prevents religation of the DNA strand by binding to topoisomerase I-DNA complex, and causes double-strand DNA breakage and cell death. It is a derivative of camptothecin. Irinotecan was approved for the treatment of advanced pancreatic cancer in October, 2015 (irinotecan liposome injection, trade name Onivyde).
Indication
For the treatment of metastatic colorectal cancer (first-line therapy when administered with 5-fluorouracil and leucovorin). Also used in combination with cisplatin for the treatment of extensive small cell lung cancer. Irinotecan is currently under investigation for the treatment of metastatic or recurrent cervical cancer. Also used in combination with fluorouracil and leucovorin for the treatment of patients with metastatic adenocarcinoma of the pancreas after disease progression following gemcitabine-based therapy.
Mechanism of Action
Irinotecan inhibits the action of topoisomerase I. Irinotecan prevents religation of the DNA strand by binding to topoisomerase I-DNA complex. The formation of this ternary complex interferes with the moving replication fork, which induces replication arrest and lethal double-stranded breaks in DNA. As a result, DNA damage is not efficiently repaired and apoptosis (programmed cell death) occurs.
Pharmacokinetics
- Absorption
- The maximum plasma concentration (Cmax) when a dose of 125 mg/m^2 is given to patients with solid tumours is 1660 ng/mL. The AUC (0-24) is 10,200 ng·h/mL. The Cmax when a dose of 340 mg/m^2 is given to patients with solid tumours is 3392 ng/mL. The AUC (0-24) is 20,604 ng·h/mL.
- Distribution
- The volume of distribution of terminal elimination phase is 110 L/m^2 when a dose of 125 mg/m^2 is given to patients with solid tumours. The volume of distribution of terminal elimination phase is 234 L/m^2 when a dose of 340 mg/m^2 is given to patients with solid tumours.
- Metabolism
- Hepatic. The metabolic conversion of irinotecan to the active metabolite SN-38 is mediated by carboxylesterase enzymes and primarily occurs in the liver. SN-38 is subsequently conjugated predominantly by the enzyme UDP-glucuronosyl transferase 1A1 (UGT1A1) to form a glucuronide metabolite.
- Elimination
Clearance
* 13.3 L/h/m^2 [Dose of 125 mg/m^2, patients with solid tumours] * 13.9 L/h/m^2 [Dose of 340 mg/m^2, patients with solid tumours]
Toxicity
Gastrointestinal complications, such as nausea, vomiting, abdominal cramping, diarrhea, and infection.
Active Ingredient/Synonyms
Biotecan | Camptothecin-11 | Irinotecan |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.