Quality -of-life scores ( Piper Fatigue Scale MD 0.73 , 95 % CI 0.29 to 1.18 ; I2 = 0 % ; studies = 3 ) and peak oxygen consumption ( MD 2.77 mL/kg/min , 95 % CI -0.89 to 6.43 ; I2 = 36 % ; 2 studies , 32 participants ) were associated with very low- quality evidence , and we remain uncertain about the role of intravenous iron for these metrics .
Current evidence is insufficient to show benefit of intravenous iron preparations for the treatment of non-anaemic iron deficiency across a variety of patient population s , beyond stating that it may result in a small , clinical ly insignificant increase in haemoglobin concentration .
BACKGROUND Iron deficiency is one of the most common nutritional deficiencies , and has a number of physiological manifestations .
Early , or non-anaemic iron deficiency can result in fatigue and diminished exercise capacity .
Oral iron preparations have a high incidence of intolerable side effects , and are ineffective in certain forms of iron deficiency .
Consequently , intravenous iron preparations are increasingly used in the treatment of non-anaemic iron deficiency .
The newer , more stable iron preparations in particular purport to have a lower incidence of side effects , and are now used across a range of different patient population s. OBJECTIVES To assess the effects of intravenous iron therapy in the treatment of adults with non-anaemic iron deficiency .
Randomized double-blind safety comparison of intravenous iron dextran versus iron sucrose in an adult non-hemodialysis outpatient population: A feasibility study
Background Intravenous iron therapy is a treatment option for iron deficient patients who are intolerant to oral iron or where oral iron is ineffective , but with possible adverse effects . Currently , prospect i ve studies comparing different intravenous iron formulations are needed to determine safety and efficacy of these agents . Methods We conducted a prospect i ve , double-blind , r and omized controlled trial ( RCT ) to assess the feasibility of a trial comparing the safety of high molecular weight intravenous iron dextran , Infufer ® , with intravenous iron sucrose , Venofer ® , in non-hemodialysis adult out patients . Primary outcome was the occurrence of immediate severe drug reactions . Results We enrolled 143 patients in a one-year period . Overall , 45/143 ( 31.5 % ) patients ( 20 iron dextran , 25 iron sucrose ) developed 48 infusion reactions ( 14 immediate , 28 delayed , and 3 both ) . The risk of an immediate reaction was similar in both groups , 9/73 ( 12.3 % ) iron dextran versus 8/70 ( 11.4 % ) iron sucrose , RR = 0.93 ( 95 % CI ; 0.38 to 2.27 ) . The risk of a delayed reaction was significantly higher in the iron sucrose group 22/70 ( 31.4 % ) versus the iron dextran group 9/73 ( 12.3 % ) , RR = 2.55 ( 95 % CI ; 1.26 to 5.15 ; p = 0.0078 ) . Conclusion In this limited feasibility study , no major differences in immediate reactions were seen , but a significantly higher number of delayed reactions were seen in the iron sucrose group . Further , under our assumptions and design a full RCT to evaluate the safety of different intravenous iron preparations is not feasible . Future studies should consider modifying the clinical outcomes , utilize multiple centers , and consider other emerging parenteral iron formulations . ( Clinical Trials.gov NCT005936197 January 3 , 2008 )
Quality -of-life scores ( Piper Fatigue Scale MD 0.73 , 95 % CI 0.29 to 1.18 ; I2 = 0 % ; studies = 3 ) and peak oxygen consumption ( MD 2.77 mL/kg/min , 95 % CI -0.89 to 6.43 ; I2 = 36 % ; 2 studies , 32 participants ) were associated with very low- quality evidence , and we remain uncertain about the role of intravenous iron for these metrics .
Current evidence is insufficient to show benefit of intravenous iron preparations for the treatment of non-anaemic iron deficiency across a variety of patient population s , beyond stating that it may result in a small , clinical ly insignificant increase in haemoglobin concentration .
BACKGROUND Iron deficiency is one of the most common nutritional deficiencies , and has a number of physiological manifestations .
Early , or non-anaemic iron deficiency can result in fatigue and diminished exercise capacity .
Oral iron preparations have a high incidence of intolerable side effects , and are ineffective in certain forms of iron deficiency .
Consequently , intravenous iron preparations are increasingly used in the treatment of non-anaemic iron deficiency .
The newer , more stable iron preparations in particular purport to have a lower incidence of side effects , and are now used across a range of different patient population s. OBJECTIVES To assess the effects of intravenous iron therapy in the treatment of adults with non-anaemic iron deficiency .