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Anthracycline

Idarubicin

Idamycin · IDAR

An anthracycline for AML whose AKI is the leukemia's tumor lysis, not the drug's tubular toxicity.

MildAnthracycline · approved 1990
Acute myeloid leukemia (in combination with cytarabine)

Signature kidney injury

Prerenal / Hemodynamic AKI

Minimal intrinsic nephrotoxicity; the dominant renal threat is tumor lysis syndrome in acute leukemia. In one inv(16) AML induction cohort tumor-lysis AKI occurred in ~6%, with some requiring hemodialysis; a general drug-specific AKI rate is not quantified.

Source: Burnett et al., J Clin Oncol 2013

Toxicity fingerprint

Tap a signature to trace where it strikes the nephron.

Incidence not quantified
SeverityMild
ReversibilityReversible
Evidence0 refs
Nephron map
Vasculature / EndotheliumGlomerular & peritubular capillaries
Distal Tubule / Collecting Duct
Tubular Lumen

Prerenal / Hemodynamic AKI

Renal hypoperfusion from capillary leak and cytokine storm — IL-2 and CAR-T cytokine release syndrome.

Mechanism of kidney injury

Minimal intrinsic nephrotoxicity; the renal injury is tumor lysis during induction. Rapid blast lysis floods the circulation with potassium, phosphate and purines, producing uric-acid and calcium-phosphate crystal nephropathy in the distal nephron with intratubular obstruction and AKI. Leukostasis/high WBC and concomitant sepsis/nephrotoxins compound the injury.

Clinical presentation

Tumor lysis within 12-72 h of induction: hyperuricemia, hyperkalemia, hyperphosphatemia, hypocalcemia, a high LDH and oliguric AKI. Certain cytogenetics (e.g. inv(16)) are flagged as high-risk for fulminant tumor lysis in AML.

Onset

Hours to days after starting induction.

Reversibility

Reversible

Anticancer mechanism

Anthracycline that intercalates DNA and inhibits topoisomerase II, producing double-strand breaks; high lipophilicity (4-demethoxy) gives strong cellular uptake, and the long-lived active metabolite idarubicinol contributes to efficacy.

Management

Aggressive hydration, rasburicase, electrolyte management, and renal replacement therapy if refractory. Support cytopenias and treat concomitant sepsis.

Risk factors

  • High WBC/blast count and high LDH
  • Elevated baseline creatinine or uric acid
  • Bulky disease and proliferative/inv(16) AML
  • Volume depletion

Prevention

  • Hydration plus allopurinol (intermediate) or rasburicase (high-risk) before cytoreduction
  • Leukapheresis for hyperleukocytosis
  • Avoid urinary alkalinization
Note · Established (1990) anthracycline; renal events are tumor-lysis-driven in acute leukemia and not population-quantified.

Clinical depth

Renal dose adjustment

Primarily hepatobiliary elimination; reduce in hepatic dysfunction. The manufacturer advises caution/consideration of reduction in renal impairment (e.g. serum creatinine >2 mg/dL) but provides no precise CrCl algorithm; cumulative anthracycline cardiotoxicity limits dosing.

Dialyzability & ESKD dosing

Not appreciably dialyzable (large volume of distribution and tissue binding); dialysis manages tumor-lysis derangements.

Differential diagnosis

Tumor lysis versus sepsis-associated AKI versus nephrotoxic antimicrobials versus leukemic renal infiltration versus contrast.

Monitoring

  • Tumor-lysis panel every 6-12 h during induction
  • CBC, LDH and renal function
  • Cardiac LVEF (cumulative anthracycline dose)

Key trials & series

  • AML15 (Burnett, J Clin Oncol 2013) — FLAG-Ida induction in AML
  • QuANTUM-First (Erba, Lancet 2023) — idarubicin within the 7+3 backbone

Clinical pearls

  • Idarubicin AKI is the leukemia's tumor lysis, not the drug's tubular toxicity.
  • inv(16) AML is a recognized high-risk subgroup for fulminant tumor lysis.
  • Hepatobiliary clearance means hepatic, not renal, dose-cuts dominate.
  • Cardiotoxicity remains the long-term dose-limiting toxicity.

Where it strikes

Nephron segments

Tubular Lumen

The urine flow path

Distal Tubule / Collecting Duct

Fine-tuning of Na, K, Mg, acid & water

Injury signatures

Crystal / Obstructive NephropathyElectrolyte WastingPrerenal / Hemodynamic AKI

Beyond the kidney

Class-level context for the major non-renal toxicities of anthracyclines.

Cardiac

Cardiomyopathy, QT, ischemia, myocarditis

  • Dose-dependent cardiomyopathy and heart failure

Hematologic

Cytopenias, thrombosis, TMA

  • Myelosuppression

Related agents

Other agents sharing the same signature kidney injury.

Bendamustine

Treanda · Alkylator

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Tumor lysis-mediated AKI is the principal risk; TMA is rare.

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Dacarbazine

DTIC · Alkylator

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Rare hepatic veno-occlusive disease; minimal direct renal injury.

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Capecitabine

Xeloda · Pyrimidine analog (oral 5-FU)

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Diarrhea-driven prerenal AKI; dose-adjust for CrCl.

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