However , in patients with IBD flares and inadequate responses to or side effects with oral preparations , intravenous iron supplementation is the therapy of choice .
Neither oral nor intravenous therapy seems to exacerbate the clinical course of IBD , and intravenous iron therapy can be administered even in active disease stages and concomitantly with biologics .
Based on the data presented , oral iron therapy should be preferred for patients with quiescent disease stages and trivial iron deficiency  anemia unless such patients are intolerant or have an inadequate response , whereas intravenous iron supplementation may be of advantage in patients with aggravated anemia or flares of IBD because inflammation hampers intestinal absorption of iron
Abstract Anemia is the most frequent complication of inflammatory bowel disease ( IBD ) , but anemia , mostly due to iron deficiency , has long been neglected in these patients .
The aim was to briefly present the pathophysiology , followed by a balanced overview of the different forms of iron replacement available , and subsequently , to perform a systematic review of studies performed in the last decade on the treatment of iron-deficiency anemia in IBD .
A Novel Intravenous Iron Formulation for Treatment of Anemia in Inflammatory Bowel Disease: The Ferric Carboxymaltose (FERINJECT®) Randomized Controlled Trial
BACKGROUND AIMS : Anemia is a common complication of inflammatory bowel diseases ( IBD ) This multicenter study tested the noninferiority and safety of a new intravenous iron preparation , ferric carboxymaltose ( FeCarb ) , in comparison with oral ferrous sulfate ( FeSulf ) in reducing iron deficiency anemia ( IDA ) in IBD . METHODS : Two hundred patients were r and omized in a 2:1 ratio ( 137 FeCarb:63 FeSulf ) to receive FeCarb ( maximum 1,000 mg iron per infusion ) at 1-wk intervals until the patients ' calculated total iron deficit was reached or FeSulf ( 100 mg b.i.d . ) for 12 wk . The primary end point was change in hemoglobin ( Hb ) from baseline to week 12 . RESULTS : The median Hb improved from 8.7 to 12.3 g/dL in the FeCarb group and from 9.1 to 12.1 g/dL in the FeSulf group , demonstrating noninferiority ( P = 0.6967 ) . Response ( defined as Hb increase of > 2.0 g/dL ) was higher for FeCarb at week 2 ( P = 0.0051 ) and week 4 ( P = 0.0346 ) . Median ferritin increased from 5.0 to 323.5 μg/L at week 2 , followed by a continuous decrease in the FeCarb group ( 43.5 μg/L at week 12 ) . In the FeSulf group , a moderate increase from 6.5 to 28.5 μg/L at week 12 was observed . Treatment-related adverse events ( AEs ) occurred in 28.5 % of the FeCarb and 22.2 % of the FeSulf groups , with discontinuation of study medication due to AEs in 1.5 % and 7.9 % , respectively . CONCLUSIONS : FeCarb is effective and safe in  IBD-associated anemia  . It is noninferior to FeSulf in terms of Hb change over 12 wk , and provides a fast Hb increase and a sufficient refill of iron stores
However , in patients with IBD flares and inadequate responses to or side effects with oral preparations , intravenous iron supplementation is the therapy of choice .
Neither oral nor intravenous therapy seems to exacerbate the clinical course of IBD , and intravenous iron therapy can be administered even in active disease stages and concomitantly with biologics .
Based on the data presented , oral iron therapy should be preferred for patients with quiescent disease stages and trivial iron deficiency  anemia unless such patients are intolerant or have an inadequate response , whereas intravenous iron supplementation may be of advantage in patients with aggravated anemia or flares of IBD because inflammation hampers intestinal absorption of iron
Abstract Anemia is the most frequent complication of inflammatory bowel disease ( IBD ) , but anemia , mostly due to iron deficiency , has long been neglected in these patients .
The aim was to briefly present the pathophysiology , followed by a balanced overview of the different forms of iron replacement available , and subsequently , to perform a systematic review of studies performed in the last decade on the treatment of iron-deficiency anemia in IBD .