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Phase III randomized trial comparing intravenous to oral iron in patients with cancer-related iron deficiency anemia not on erythropoiesis stimulating agents

In Asia-Pacific Journal of Clinical Oncology
By: Noronha V.
Contributor(s): Joshi A | Patil VM | Banavali SD | Gupta S | Parikh PM | Marfatia S | Punatar S | More S | Goud S | Nakti D | Prabhash K.
Material type: materialTypeLabelArticlePublisher: 2018Description: .Subject(s): Anemia | Blood transfusion | Ferric compounds | Iron | Iron-deficiency In: Asia-Pacific Journal of Clinical Oncology Vol. 14, no. 2, p. e129- e137Summary: AIM: We aimed to find the optimal route of iron supplementation in patients with malignancy and iron deficiency (true or functional) anemia not receiving erythropoiesis stimulating agents (ESA). METHODS: Adult patients with malignancy requiring chemotherapy, hemoglobin (Hb) <12 g/dL and serum ferritin <100 mcg/mL, transferrin saturation <20% or hypochromic red blood cells >10% were randomized to intravenous (IV) iron sucrose or oral ferrous sulfate. The primary endpoint was change in Hb from baseline to 6 weeks. Secondary endpoints included blood transfusion, quality of life (QoL), toxicity, response and overall survival. RESULTS: A total of 192 patients were enrolled over 5 years: 98 on IV arm and 94 on oral arm. Median age was 51 years; over 95% patients had solid tumors. The mean absolute increase in Hb at 6 weeks was 0.11 g/dL (standard deviation [SD]: 1.48) in IV arm and -0.16 g/dL (SD: 1.36) in oral arm, P = 0.23. Twenty-three percent patients on IV iron and 18% patients on oral iron had a rise in Hb of ≥1 g/dL at 6 weeks, P = 0.45. Thirteen patients (13.3%) on the IV iron arm and 14 patients (14.9%) on the oral arm required blood transfusion, P = 1.0. Gastrointestinal toxicity (any grade) developed in 41% patients on IV iron and 44% patients on oral iron, P = 1.0. 5 patients on IV iron and none on oral iron had hypersensitivity, P = 0.06. QoL was not significantly different between the two arms. CONCLUSION: IV iron was not superior to oral iron in patients with malignancy on chemotherapy and iron deficiency anemia.
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AIM:
We aimed to find the optimal route of iron supplementation in patients with malignancy and iron deficiency (true or functional) anemia not receiving erythropoiesis stimulating agents (ESA).

METHODS:
Adult patients with malignancy requiring chemotherapy, hemoglobin (Hb) <12 g/dL and serum ferritin <100 mcg/mL, transferrin saturation <20% or hypochromic red blood cells >10% were randomized to intravenous (IV) iron sucrose or oral ferrous sulfate. The primary endpoint was change in Hb from baseline to 6 weeks. Secondary endpoints included blood transfusion, quality of life (QoL), toxicity, response and overall survival.

RESULTS:
A total of 192 patients were enrolled over 5 years: 98 on IV arm and 94 on oral arm. Median age was 51 years; over 95% patients had solid tumors. The mean absolute increase in Hb at 6 weeks was 0.11 g/dL (standard deviation [SD]: 1.48) in IV arm and -0.16 g/dL (SD: 1.36) in oral arm, P = 0.23. Twenty-three percent patients on IV iron and 18% patients on oral iron had a rise in Hb of ≥1 g/dL at 6 weeks, P = 0.45. Thirteen patients (13.3%) on the IV iron arm and 14 patients (14.9%) on the oral arm required blood transfusion, P = 1.0. Gastrointestinal toxicity (any grade) developed in 41% patients on IV iron and 44% patients on oral iron, P = 1.0. 5 patients on IV iron and none on oral iron had hypersensitivity, P = 0.06. QoL was not significantly different between the two arms.

CONCLUSION:
IV iron was not superior to oral iron in patients with malignancy on chemotherapy and iron deficiency anemia.

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