Comparative Pharmacology
Head-to-head clinical analysis: CLOFARABINE versus FOLEX.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CLOFARABINE versus FOLEX.
CLOFARABINE vs FOLEX
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Clofarabine is a purine nucleoside antimetabolite that inhibits DNA synthesis by reducing intracellular deoxynucleotide triphosphate pools via inhibition of ribonucleotide reductase, and by terminating DNA chain elongation through incorporation into DNA, leading to apoptosis.
Methotrexate, the active ingredient in FOLEX, is a folate analog that inhibits dihydrofolate reductase (DHFR), blocking the conversion of dihydrofolate to tetrahydrofolate, thereby interfering with thymidylate and purine synthesis, leading to inhibition of DNA replication and cell proliferation.
52 mg/m^2 intravenously over 2 hours daily for 5 consecutive days, repeated every 28 days.
30 mg/m2 intravenously once weekly for 2 weeks followed by a 1-week rest period, or 5-10 mg/m2 intramuscularly or intravenously every 3-4 weeks. For rheumatoid arthritis, 7.5-15 mg orally once weekly.
None Documented
None Documented
Clinical Note
moderateClofarabine + Digoxin
"Clofarabine may decrease the cardiotoxic activities of Digoxin."
Clinical Note
moderateClofarabine + Digitoxin
"Clofarabine may decrease the cardiotoxic activities of Digitoxin."
Clinical Note
moderateClofarabine + Deslanoside
"Clofarabine may decrease the cardiotoxic activities of Deslanoside."
Clinical Note
moderateClofarabine + Acetyldigitoxin
"Clofarabine may decrease the cardiotoxic activities of Acetyldigitoxin."
Terminal elimination half-life: 5.2 hours (range 4-6 hours) in adult patients; clinically, this supports a 5-day continuous infusion schedule
Terminal half-life: 3-10 hours (mean ~5 hours) for low-dose regimens; higher doses or renal impairment may prolong half-life up to 24 hours.
Renal: 49-60% as unchanged drug; biliary/fecal: minimal (<1%)
Primarily renal excretion of unchanged drug: ~80-90% within 24 hours. Biliary/fecal excretion accounts for <10%.
Category C
Category C
Antineoplastic Agent
Antineoplastic Agent