Showing posts with label exjade. Show all posts
Showing posts with label exjade. Show all posts

Saturday, February 16, 2013

NEWS FROM EXJADE  SURVEYS

"Exjade is dosed based on weight with an initial recommended dose of 20 mg/kg/day
 with later adjustments every 3 – 6 months in steps of 5 or 10 mg/kg/day as needed
 to control serum ferritin levels.  In patients at a dose of 30 mg/kg/day with serum ferritin
levels persistently above 2,500 μg/L, doses up to (but not beyond) 40 mg/kg/day may be
 considered.
In an open-label, noncomparative trial of efficacy and safety of Exjade, 184 patients
 (including 47 MDS patients) were treated for up to 1 year at doses of 5, 10, 20,
or 30 mg/kg/day based on baseline liver iron content (LIC).  The reduction in absolute
LIC from baseline to end of study at 1 year was 4.2 mg-Fe/g-dry weight.
In the primary study of Exjade efficacy – an open-label, randomized, active comparator
 study vs.deferoxamine, 586 patients with β-thalassemia and transfusional hemoiderosis
 were randomized with 296 patients receiving Exjade at doses of 5-30 mg/kg/day and
 treated up to 1 year.
 The following figure summarizes the changes in liver iron content and serum ferritin between
 baseline and end of study at 1 year for Exjade patients at doses of 5, 10, 20, and
30 mg/kg/day."






"Gattermann et al. [Haematologica, 2012; 97(9): 1364-1371] have recently published
 data on the impact of chelation therapy with deferasirox (Exjade) on hemoglobin levels,
 platelet counts, and neutrophil counts in patients with transfusion-dependent MDS.
To be included in the trial, patients must have:
  1. Been diagnosed with iron overload (serum ferritin > 1,000 μg/L or LIC > 2 mg-Fe/g-dw)
  2. Had a history of multiple blood transfusions (> 20 transfusions or > 100 ml/Kg
  3.  of RBCs)
  4. Not be on a concomitant disease modifying agent for MDS (e.g., Vidaza, Dacogen,
  5.  Revlimid)
Recruited patients were treated with deferasirox for 1 year of active treatment – there
was no control arm in the trial design.  The following table summarizes the main study findings:"
Erythroid analysisPlatelet analysisNeutrophil analysis
Eligible patients24710050
Inclusion criteriaPre-treatment HB < 11 g/dl, OR RBC transfusion requirements > 4 units
per 8 weeks
Pre-treatment platelets
< 100 x 109/L
Pre-treatment ANC
< 1.0 x 109/L
Definition of responseHB increase > 1.5g/dL,
OR reduction of ≥ 4 RBC transfusions per 8 weeks
Increase > 30 x 109/L for patients below 20 x 109/L, or > 100% increase> 100% increase, AND absolute increase
> 0.5 x 109/L
Response rate21.5%13%22%
Median days to response109169226
Mean actual deferasirox dose, mg/kg/day~19.3~19.5~18.8