Azacitidine
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From MedlinePlus, U.S. National Library of Medicine
Nucleoside Metabolic Inhibitor
Dosing in kidney impairment
Renal Impairment Monitor patients with severe renal impairment (creatinine clearance [CLcr] 15 to 29 mL/min calculated by Cockcroft-Gault formula) more frequently for adverse reactions and modify the ONUREG dosage for adverse reactions [see Dosage and Administration ] . No dose adjustment of ONUREG is recommended for patients with mild to severe renal impairment (CLcr 15 to 89 mL/min) [see Clinical Pharmacology ] .
Dosing in liver impairment
Hepatic Impairment ONUREG has not been studied in patients with pre-existing severe hepatic impairment (total bilirubin > 3 × ULN). No dose adjustment of ONUREG is recommended for patients with mild or moderate hepatic impairment (total bilirubin ≤ ULN and AST > ULN, or total bilirubin 1 to 3 × ULN and any AST) [see Clinical Pharmacology ] .
Preparation and administration
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Important Administration Information Do not substitute ONUREG for intravenous or subcutaneous azacitidine. The indications and dosing regimen for ONUREG differ from that of intravenous or subcutaneous azacitidine [see Warnings and Precautions ].
Contraindications
4 CONTRAINDICATIONS ONUREG is contraindicated in patients with known severe hypersensitivity to azacitidine or its components [see Adverse Reactions (6.2) , Description (11) ] . History of severe hypersensitivity to azacitidine or its components ( 4 ).
Pregnancy and lactation
Pregnancy
8.1 Pregnancy Risk Summary Based on its mechanism of action [see Clinical Pharmacology (12.1) ] and findings in animals, ONUREG can cause fetal harm when administered to a pregnant woman. There are no available data on ONUREG use in pregnant women to evaluate for a drug-associated risk. Azacitidine was teratogenic and caused embryo-fetal lethality in animals at doses less than the recommended human daily dose of oral azacitidine on a mg/m 2 basis (see Data ) . Advise pregnant women of the potential risk to the fetus. The estimated background of major birth defects and miscarriage for the indicated population is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data No reproductive or developmental toxicity studies have been conducted with oral azacitidine. Early embryotoxicity studies in mice revealed a 44% frequency of intrauterine embryonal death (increased resorption) after a single intraperitoneal injection of 6 mg/m 2 azacitidine (at doses less than the recommended human daily dose of oral azacitidine on a mg/m 2 basis) on gestation Day 10.
Developmental abnormalities in the brain have been detected in mice given azacitidine on or before gestation Day 15 at doses of approximately 3 to 12 mg/m 2 (at doses less than the recommended human daily dose on a mg/m 2 basis). In rats, azacitidine was clearly embryotoxic when given an intraperitoneal injection on gestation Days 4 to 8 (postimplantation) at a dose of 6 mg/m 2 (at doses less than the recommended human daily dose on a mg/m 2 basis), although treatment in the preimplantation period (on gestation Days 1 to 3) had no adverse effect on the embryos.
Azacitidine caused multiple fetal abnormalities in rats after a single intraperitoneal dose of 3 to 12 mg/m 2 (at doses less than the recommended human daily dose on a mg/m 2 basis) given on gestation Days 9, 10, 11, or 12. In this study, azacitidine caused fetal death when administered at 3 to 12 mg/m 2 on gestation Days 9 and 10; average live animals per litter was reduced to 9% of control at the highest dose on gestation Day 9. Fetal anomalies included: CNS anomalies (exencephaly/encephalocele), limb anomalies (micromelia, club foot, syndactyly, oligodactyly), and others (micrognathia, gastroschisis, edema, and rib abnormalities).
For breastfeeding, also see LactMed (National Library of Medicine), which summarizes milk levels and infant effects.
Supply and cost
Drug shortage status
Recalls (last 24 months)
Therapeutic equivalence (Orange Book)
Price ladder
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