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Antibody-drug conjugate (CD33/calicheamicin)

Gemtuzumab ozogamicin

Mylotarg · GO

A CD33/calicheamicin conjugate for AML — renal risk runs through tumor lysis and veno-occlusive disease.

ModerateAntibody-drug conjugate · approved 2017
Acute myeloid leukemia

Signature kidney injury

Prerenal / Hemodynamic AKI

Direct nephrotoxicity is not a prominent signal. AKI is chiefly secondary to tumor lysis syndrome and to hepatic sinusoidal obstruction syndrome/veno-occlusive disease (VOD), the latter a recognized, sometimes fatal complication that produces hepatorenal-type AKI. Renal-specific incidence is not quantified.

Source: Cortes et al., J Hematol Oncol 2020

Mechanism of kidney injury

Indirect: rapid leukemic-cell lysis causes tumor lysis with crystal nephropathy and electrolyte shifts; calicheamicin-mediated injury to hepatic sinusoidal endothelium produces VOD/SOS with fluid overload, portal hypertension, ascites and hepatorenal-pattern AKI (a functional renal failure of advanced liver injury). Direct tubular toxicity from calicheamicin is not a notable clinical signal.

Clinical presentation

Tumor-lysis labs (hyperuricemia, hyperphosphatemia, hyperkalemia, hypocalcemia) with AKI early in therapy; with VOD, weight gain, painful hepatomegaly, ascites, hyperbilirubinemia and a rising creatinine with low urine sodium (hepatorenal physiology).

Onset

Early — tumor lysis with induction; VOD typically within weeks, notably around hematopoietic stem-cell transplant.

Reversibility

Variable

Anticancer mechanism

Antibody-drug conjugate targeting CD33 and delivering the DNA-damaging enediyne calicheamicin via a hydrolyzable linker. Approved for CD33-positive acute myeloid leukemia.

Management

Tumor-lysis management (hydration, urate-lowering therapy, electrolyte correction); for VOD, supportive care and defibrotide with careful fluid/renal management; supportive AKI care including dialysis if severe.

Risk factors

  • High leukemic burden
  • Prior or subsequent hematopoietic stem-cell transplant
  • Hepatic dysfunction
  • Fractionated high cumulative exposure
  • Volume depletion
  • Pre-existing CKD

Prevention

  • Tumor lysis prophylaxis (hydration, allopurinol/rasburicase)
  • VOD risk mitigation (fractionated lower dosing, avoid in significant hepatic dysfunction, monitor LFTs and weight)
  • Renal/volume monitoring
Note · Renal injury is mediated by tumor lysis and VOD rather than direct tubular toxicity; VOD carries the highest-stakes renal risk.

Clinical depth

Renal dose adjustment

No specific renal dose adjustment; dose decisions are driven by hepatic function and VOD risk, not renal clearance. Calicheamicin is hepatically handled.

Dialyzability & ESKD dosing

Not appreciably dialyzed (large ADC; protein-bound calicheamicin). HD/CRRT in VOD is for fluid/AKI support, not drug removal.

Differential diagnosis

Distinguish tumor lysis AKI (early, electrolyte signature) from VOD-associated hepatorenal AKI (jaundice, weight gain, ascites, low urine sodium) and from sepsis/nephrotoxin ATN in the neutropenic host. VOD carries the highest-stakes renal trajectory.

Monitoring

  • LFTs (especially bilirubin) and daily weight for VOD, before and after transplant
  • Tumor lysis labs during induction
  • Serum creatinine and volume status, particularly in evolving VOD

Key trials & series

  • ALFA-0701 (registrational fractionated dosing)
  • Cortes J Hematol Oncol 2020 (adverse-event/VOD management review)

Clinical pearls

  • VOD is the dangerous renal pathway: weight gain + bilirubin + hepatomegaly + rising creatinine peri-transplant should trigger early defibrotide consideration.
  • Fractionated dosing was adopted partly to reduce VOD risk versus the original single high dose.
  • The kidney here is a bystander of liver and tumor - direct calicheamicin tubular toxicity is not the issue.

Where it strikes

Nephron segments

Vasculature / Endothelium

Glomerular & peritubular capillaries

Injury signatures

Prerenal / Hemodynamic AKIElectrolyte Wasting

Beyond the kidney

Class-level context for the major non-renal toxicities of antibody-drug conjugate (cd33/calicheamicin)s.

Hematologic

Cytopenias, thrombosis, TMA

  • Myelosuppression (payload-dependent)

Ophthalmic

Keratopathy, uveitis, retinopathy

  • Keratopathy (belantamab, mirvetuximab, tisotumab)

Pulmonary

Pneumonitis, ILD, effusions, hypertension

  • Interstitial lung disease (deruxtecan ADCs)

Neurologic

Neuropathy, encephalopathy, ICANS, PRES

  • Peripheral neuropathy (MMAE payloads)

Related agents

Other agents sharing the same signature kidney injury.

Bendamustine

Treanda · Alkylator

Profile

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

PRETMALYTE
ModerateOpen →

Dacarbazine

DTIC · Alkylator

Profile

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

PRE
MildOpen →

Capecitabine

Xeloda · Pyrimidine analog (oral 5-FU)

Profile

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

PRETMA
MildOpen →