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  • Title: Comparative Efficacy and Safety of Oral Iron Chelators and their Novel Combination in Children with Thalassemia.
    Author: Gomber S, Jain P, Sharma S, Narang M.
    Journal: Indian Pediatr; 2016 Mar; 53(3):207-10. PubMed ID: 27029681.
    Abstract:
    OBJECTIVE: To compare the efficacy and safety of oral iron chelators (Deferiprone and Deferasirox) when used singly and in combination in multi-transfused children with thalassemia. DESIGN: Prospective comparative study. SETTING: Thalassemia Center of a medical college affiliated hospital. PARTICIPANTS AND INTERVENTION: 49 multi-transfused children with thalassemia with a mean (SD) age 11.6 (6.21) y received daily chelation therapy with either deferiprone alone (75 mg/kg/day in 3 divided doses), deferasirox alone (30 mg/kg/day single dose) or their daily combination (same dose as monotherapy) for 12 months. OUTCOME MEASURES: Serum ferritin levels at the start of study, after 6 months and after 12 months. MRI T2* of liver and heart initially and after 6 months of follow up. 24-hour urinary iron excretion values at the outset and after 12 months of chelation therapy. At every visit for blood transfusion, all patients were clinically assessed for any adverse effects; liver and renal functions were monitored 6-monthly. RESULTS: After 12 months of respective chelation therapy, serum ferritin values decreased from a mean of 3140.5 ng/mL to 2910.0 ng/mL in deferiprone alone group, 3859.2 ng/mL to 3417.4 ng/mL in deferasirox alone group and from 3696.5 ng/mL to 2572.1 ng/mL in the combination group. The combination therapy was more efficacious in causing fall in serum ferritin levels compared to deferiprone and deferasirox monotherapy (P= 0.035 and 0.040, respectively). Results of MRI T2 were equivocal. Combined drug usage produced maximum negative iron balance in the body by maximally increasing the iron excretion in urine from 61.1 umol/day to 343.3 umol/day (P = 0.002). No significant adverse reactions were noticed in either the monotherapy or the combination group. CONCLUSION: Oral combination therapy of deferiprone and deferasirox appears to be an efficacious and safe modality to reduce serum ferritin in multi-transfused children with thalassemia.
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