Deferasirox in patients with iron overload secondary to hereditary hemochromatosis: results of a 1-yr Phase 2 study

Eur J Haematol. 2015 Dec;95(6):545-50. doi: 10.1111/ejh.12530. Epub 2015 Mar 27.

Abstract

This open-label, prospective, phase 2 study evaluated the safety and efficacy of deferasirox (10 ± 5 mg/kg/d) in patients with hereditary hemochromatosis (HH) and iron overload refractory to or intolerant of phlebotomy. Ten patients were enrolled and all completed the 12-month treatment period. There were significant decreases from baseline to end of study (i.e., 12 months) in median serum ferritin (P < 0.001), mean transferrin saturation (P < 0.05), median liver iron concentration (P < 0.001), and mean alanine aminotransferase (P < 0.05). The median time to achieve serum ferritin reduction ≥50% compared to baseline was 7.53 months. The most common adverse events were mild, transient diarrhea (n = 5) and nausea (n = 2). No patient experienced an increase in serum creatinine that exceeded the upper limit of normal. These data confirm that deferasirox was well tolerated and effective in reducing iron burden in patients with hereditary hemochromatosis and could be a safe alternative to phlebotomy in selected patients.

Keywords: chelation therapy; deferasirox; erythrocytapheresis; hereditary hemochromatosis; iron overload; phlebotomy; transfusional siderosis.

Publication types

  • Clinical Trial, Phase II

MeSH terms

  • Adult
  • Aged
  • Benzoates / administration & dosage
  • Benzoates / adverse effects
  • Benzoates / therapeutic use*
  • Biomarkers
  • Deferasirox
  • Erythrocyte Indices
  • Female
  • Hemochromatosis / complications*
  • Hemochromatosis / diagnosis
  • Hemochromatosis / genetics
  • Hemochromatosis Protein
  • Histocompatibility Antigens Class I / genetics
  • Humans
  • Iron Chelating Agents / administration & dosage
  • Iron Chelating Agents / adverse effects
  • Iron Chelating Agents / therapeutic use*
  • Iron Overload / diagnosis
  • Iron Overload / drug therapy*
  • Iron Overload / etiology*
  • Male
  • Membrane Proteins / genetics
  • Middle Aged
  • Mutation
  • Time Factors
  • Treatment Outcome
  • Triazoles / administration & dosage
  • Triazoles / adverse effects
  • Triazoles / therapeutic use*

Substances

  • Benzoates
  • Biomarkers
  • HFE protein, human
  • Hemochromatosis Protein
  • Histocompatibility Antigens Class I
  • Iron Chelating Agents
  • Membrane Proteins
  • Triazoles
  • Deferasirox