Comparative Pharmacology
Head-to-head clinical analysis: ACTHAR GEL versus CORTICOTROPIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ACTHAR GEL versus CORTICOTROPIN.
ACTHAR GEL vs CORTICOTROPIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Stimulates adrenal cortex to secrete cortisol, corticosterone, and aldosterone; also exerts extra-adrenal effects via melanocortin receptors.
Corticotropin (ACTH) stimulates the adrenal cortex to release cortisol, corticosterone, aldosterone, and androgens via activation of melanocortin 2 receptor (MC2R) in the zona fasciculata and reticularis.
Initial: 40-80 Units intramuscularly or subcutaneously every 24-48 hours; maintenance: 40 Units intramuscularly or subcutaneously every 24-72 hours.
40-80 units IM or SC every 24-72 hours; dose adjusted based on response.
None Documented
None Documented
Terminal elimination half-life approximately 2–3 hours for corticotropin component; repository formulation (gel) extends to 15–20 hours due to slow absorption.
15-30 minutes (intravenous); clinically, duration of action (via adrenal stimulation) exceeds half-life due to sustained cAMP-mediated effects.
Renal metabolism and excretion (primarily as inactive metabolites); <5% unchanged in urine. Biliary/fecal excretion negligible.
Primarily metabolized in tissues via proteolysis; negligible renal excretion of intact hormone (<5%); urinary metabolites include small peptide fragments.
Category C
Category C
Corticotropin
Corticotropin