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Pronunciation |
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(eye
da ROO bi
sin) |
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U.S. Brand
Names |
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Idamycin® |
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Generic
Available |
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No |
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Synonyms |
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4-demethoxydaunorubicin; 4-dmdr; Idarubicin Hydrochloride |
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Pharmacological Index |
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Antineoplastic Agent, Antibiotic |
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Use |
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In combination treatment of acute myeloid leukemia (AML), this includes
classifications M1 through M7 of the French-American-British (FAB)
classification system; also used for the treatment of acute lymphocytic leukemia
(ALL) in children |
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Pregnancy Risk
Factor |
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D |
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Contraindications |
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Hypersensitivity to idarubicin, daunorubicin, or any
component |
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Warnings/Precautions |
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The U.S. Food and Drug Administration (FDA) currently recommends that
procedures for proper handling and disposal of antineoplastic agents be
considered. Administer I.V. slowly into a freely flowing I.V. infusion; do not
administer I.M. or S.C., severe necrosis can result if extravasation occurs; can
cause myocardial toxicity and is more common in patients who have previously
received anthracyclines or have pre-existing cardiac disease; reduce dose in
patients with impaired hepatic function; irreversible myocardial toxicity may
occur as total dosage approaches 137.5 mg/m2; severe myelosuppression
is also possible. |
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Adverse
Reactions |
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>10%:
Central nervous system: Headache, fever
Dermatologic: Alopecia, rash, urticaria
Gastrointestinal: Mucositis, nausea, vomiting, diarrhea, stomatitis
Genitourinary: Reddish urine
Hematologic: Hemorrhage, anemia
Leukopenia (nadir: 8-29 days)
Thrombocytopenia (nadir: 10-15 days)
Local: Tissue necrosis upon extravasation, erythematous streaking
Vesicant chemotherapy
Miscellaneous: Infection
1% to 10%:
Central nervous system: Seizures
Neuromuscular & skeletal: Peripheral neuropathy
Miscellaneous: Pulmonary allergy
<1%: Arrhythmias, EKG changes, cardiomyopathy, congestive heart failure,
myocardial toxicity, acute life-threatening arrhythmias, hyperuricemia, elevated
liver enzymes or bilirubin |
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Overdosage/Toxicology |
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Symptoms of overdose include severe myelosuppression and increased GI
toxicity
Treatment is supportive; it is unlikely that therapeutic efficacy or toxicity
would be altered by conventional peritoneal or hemodialysis
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Drug
Interactions |
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Patients may experience impaired immune response to vaccines; possible
infection after administration of live vaccines in patients receiving
immunosuppressants |
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Stability |
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Store intact vials of lyophilized powder at room temperature and protect from
light
Dilute powder with sterile water for injection to a concentration of 1 mg/mL
as follows: Solution is stable for 72 hours at room temperature and 7 days under
refrigeration. Bacteriostatic diluents are not recommended.
5 mg = 5 mL
10 mg = 10 mL
Further dilution in D5W or NS is stable for 4 weeks at room
temperature and protected from light
Incompatible with dexamethasone, etoposide, fluorouracil, heparin,
hydrocortisone, methotrexate, vincristine
Standard I.V. dilution:
I.V. push: Dose/syringe (concentration: 1 mg/mL)
Maximum syringe size for IVP: 30 mL syringe and syringe should be less than
or equal to 75% full
IVPB: Dose/100 mL D5W or NS
Syringe and IVPB solutions are stable for 72 hours at room temperature and 7
days under refrigeration |
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Mechanism of
Action |
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Derivative of daunorubicin; the only structural difference between idarubicin
and the parent compound, daunorubicin, is lack of the methoxyl group at the C4
position of the aglycone. Similar to daunorubicin, idarubicin exhibits
inhibitory effects on DNA and RNA polymerase in vitro. Idarubicin has an
affinity for DNA similar to the parent compound and somewhat higher efficacy
than daunorubicin in stabilizing the DNA double helix against heat
denaturation. |
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Pharmacodynamics/Kinetics |
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Absorption: Oral: Rapid but erratic (20% to 30%) from the GI tract
Distribution: Large Vd due to extensive tissue binding and
distributes into CSF
Protein binding: 94% to 97%
Metabolism: In the liver to idarubicinol, which is pharmacologically active
Half-life, elimination: Oral: 14-35 hours; I.V.: 12-27 hours
Time to peak serum concentration: Within 2-4 hours and varies considerably
Elimination: ~15% of an I.V. dose has been recovered in urine as idarubicin
and idarubicinol; urinary recovery of idarubicin and idarubicinol is lower
following oral doses; similar amounts are excreted via the bile
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Usual Dosage |
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I.V.:
Leukemia: 10-12 mg/m2 once daily for 3 days and repeat every 3
weeks
Solid tumors: 5 mg/m2 once daily for 3 days and repeat every 3
weeks
Adults: 12 mg/m2/day for 3 days by slow (10-15 minutes)
intravenous injection in combination with Ara-C
The Ara-C may be given as 100 mg/m2/day by continuous infusion for
7 days or as Ara-C 25 mg/m2 bolus followed by Ara-C 200
mg/m2/day for 5 days continuous infusion
Dosing adjustment in renal impairment: Dose reduction is recommended
Serum creatinine greater than or equal to 2 mg/dL: Reduce dose by 25%
Hemodialysis: Significant drug removal is unlikely based on physiochemical
characteristics
Peritoneal dialysis: Significant drug removal is unlikely based on
physiochemical characteristics
Dosing adjustment/comments in hepatic impairment:
Bilirubin 1.5-5.0 mg/dL or AST 60-180 units/L: Reduce dose 50%
Bilirubin >5 mg/dL or AST >180 units/L: Do not administer
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Monitoring
Parameters |
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CBC with differential, platelet count, ECHO, EKG, serum electrolytes,
creatinine, uric acid, ALT, AST, bilirubin, signs of
extravasation |
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Mental Health: Effects
on Mental Status |
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None reported |
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Mental Health:
Effects on Psychiatric
Treatment |
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Leukopenia is common; use caution with clozapine and
carbamazepine |
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Dental Health: Local
Anesthetic/Vasoconstrictor
Precautions |
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No information available to require special precautions |
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Dental Health:
Effects on Dental Treatment |
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No effects or complications reported |
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Patient
Information |
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This drug can only be administered I.V. Maintain adequate nutrition and
hydration (2-3 L/day of fluids unless instructed to restrict fluid intake). May
cause hair loss (will grow back); nausea or vomiting (consult prescriber for
antiemetic medication); you will be susceptible to infection (avoid crowds and
exposure to infection); or urine may turn red-brown (normal). Report immediately
any pain, burning, or stinging at infusion site; difficulty breathing; or
swelling of extremities. Pregnancy/breast-feeding precautions: Use
appropriate contraceptive measures; do not get pregnant while taking this drug
(serious fetal damage has occurred). Consult prescriber if
breast-feeding. |
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Nursing
Implications |
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Local erythematous streaking along the vein may indicate too rapid a rate of
administration
Unless specific data available, do not mix with other drugs
Extravasation management:
Apply ice immediately for 30-60 minutes; then alternate off/on every 15
minutes for one day
Topical cooling may be achieved using ice packs or cooling pad with
circulating ice water. Cooling of site for 24 hours as tolerated by the patient.
Elevate and rest extremity 24-48 hours, then resume normal activity as
tolerated. Application of cold inhibits vesicant's cytotoxicity.
Application of heat or sodium bicarbonate can be harmful and is
contraindicated
If pain, erythema, and/or swelling persist beyond 48 hours, refer patient
immediately to plastic surgeon for consultation and possible debridement
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Dosage Forms |
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Injection: 1 mg/mL (5 mL, 10 mL, 20 mL)
Powder for injection, lyophilized, as hydrochloride: 5 mg, 10 mg
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References |
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Arlin ZA,
"Idarubicin in Acute Leukemia: An Effective New Therapy for the Future,"
Semin Oncol, 1989, 16(1 Suppl 2):35-6.
Berman E, "A Review of Idarubicin in Acute Leukemia," Oncology, 1993,
7(10):91-8, 104.
Borchmann P, Hubel K, Schnell R, et al,
"Idarubicin: A Brief Overview on Pharmacology and Clinical Use," Int J Clin
Pharmacol Ther, 1997, 35(2):80-3.
Fields SM and Koeller JM, "Idarubicin: A Second Generation Anthracycline,"
DICP, 1991, 25(5):505-17.
Hollingshead LM and Faulds D,
"Idarubicin: A Review of Its Pharmacodynamic and Pharmacokinetic Properties, and Therapeutic Potential in the Chemotherapy of Cancer,"
Drugs, 1991, 42(4):690-719.
Jeffrey LP, Chairman, National Study Commission on Cytotoxic Exposure.
Position Statement.
"The Handling of Cytotoxic Agents by Women Who Are Pregnant, Attempting to Conceive, or Breast-Feeding,"
January 12, 1987.
Reid JM, Pendergrass TW, Krailo MD, et al,
"Plasma Pharmacokinetics and Cerebrospinal Fluid Concentrations of Idarubicin and Idarubicinol in Pediatric Leukemia Patients: A Children's Cancer Study Group Report,"
Cancer Res, 1990, 50(20):6525-8. |
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