Comparative Pharmacology
Head-to-head clinical analysis: ARSENIC TRIOXIDE versus CAMPATH.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ARSENIC TRIOXIDE versus CAMPATH.
ARSENIC TRIOXIDE vs CAMPATH
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Arsenic trioxide induces apoptosis in acute promyelocytic leukemia (APL) cells through degradation of PML-RARα fusion protein and modulation of mitochondrial pathways.
Alemtuzumab is a recombinant humanized monoclonal antibody that binds to CD52, a cell surface antigen expressed on B and T lymphocytes, NK cells, monocytes, and macrophages. Binding induces antibody-dependent cell-mediated cytotoxicity and complement-mediated lysis, resulting in prolonged lymphocyte depletion.
0.15 mg/kg IV daily until remission, then 0.15 mg/kg IV 5 days per week for 5 weeks (consolidation); dose based on actual body weight.
12 mg/day intravenously over 2 hours, administered for 5 consecutive days (total 60 mg). For patients with relapsed/refractory chronic lymphocytic leukemia (CLL), the recommended dose is 3 mg/day intravenously on day 1, 10 mg/day on day 2, and 30 mg/day on day 3 (dose escalation), followed by 30 mg/day three times per week on alternate days for up to 11 weeks (total cumulative dose up to 640 mg).
None Documented
None Documented
Clinical Note
moderateArsenic trioxide + Digoxin
"Arsenic trioxide may decrease the cardiotoxic activities of Digoxin."
Clinical Note
moderateArsenic trioxide + Digitoxin
"Arsenic trioxide may decrease the cardiotoxic activities of Digitoxin."
Clinical Note
moderateArsenic trioxide + Deslanoside
"Arsenic trioxide may decrease the cardiotoxic activities of Deslanoside."
Clinical Note
moderateArsenic trioxide + Acetyldigitoxin
Terminal elimination half-life of inorganic arsenic is approximately 10–14 hours for the trivalent form, but for total arsenic (including methylated metabolites) the half-life ranges from 10 to 32 hours. Clinical context: due to extensive tissue distribution and metabolic conversion, the effective half-life for pharmacodynamic effect is prolonged, with repeated dosing leading to accumulation. The terminal half-life is biphasic: an initial distribution phase of about 2 hours and a terminal phase of 10–14 hours.
Terminal half-life approximately 12 days (range 6-21 days) after repeated doses, supporting weekly dosing in CLL.
Primarily renal excretion; after intravenous administration, approximately 15% of the dose is excreted unchanged in urine over 24 hours. Biliary/fecal excretion accounts for less than 5% as unchanged drug; the majority is eliminated as methylated metabolites (monomethylarsonic acid and dimethylarsinic acid) via urine, with total urinary excretion of arsenic species reaching 60-85% of the dose within 14 days.
Clearance via opsonization and degradation in reticuloendothelial system; negligible renal or biliary excretion (<1% unchanged).
Category C
Category C
Antineoplastic
Monoclonal Antibody, Antineoplastic
"Arsenic trioxide may decrease the cardiotoxic activities of Acetyldigitoxin."