PMID- 37205968 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230521 IS - 2691-171X (Electronic) IS - 2691-171X (Linking) VI - 2 IP - 3 DP - 2021 Aug TI - Safety, Tolerability, and Pharmacokinetics of Oral Ferric Maltol in Children With Iron Deficiency: Phase 1 Study. PG - e090 LID - 10.1097/PG9.0000000000000090 [doi] AB - Iron deficiency is common in children and can have negative effects on behavior and function. Standard oral ferrous iron replacement is poorly absorbed and can cause treatment-limiting gastrointestinal adverse events (AEs). Ferric maltol is formulated to improve gastrointestinal absorption and tolerability versus oral ferrous compounds. In adult phase 3 trials, it increased hemoglobin and iron stores versus placebo, with a gastrointestinal AE profile similar to placebo. Here, we assess different doses of ferric maltol in children with iron deficiency. METHODS: This phase 1 trial involved children of age 10 to 17 years with ferritin <30 microg/L (or <50 microg/L with transferrin saturation [TSAT] <20%). Children were randomized 1:1:1 to oral ferric maltol 7.8 mg, 16.6 mg, or 30 mg twice daily for 9 days and once on day 10. The primary outcomes were iron uptake measures (serum iron and TSAT) and population pharmacokinetic analyses. RESULTS: The trial included 37 children (mean age 14.0 years; baseline mean +/- standard deviation ferritin 16.3 +/- 8.02 microg/L). Ferric maltol increased iron uptake nondose-proportionally: serum iron and TSAT plateaued between the 2 higher doses on day 1 and were comparable across all doses on day 10. Twenty children (54%) experienced AEs (all mild/moderate, gastrointestinal 32%), with similar frequencies in each group. CONCLUSIONS: All 3 ferric maltol doses increased iron uptake in children with iron deficiency, even over the short study duration, and were well tolerated. Nondose-dependent changes in serum iron and TSAT indicate physiologic regulation of iron uptake to meet the body's needs. CI - Copyright (c) The Author(s). Published by Wolters Kluwer on behalf of European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition. FAU - Allen, Stephen AU - Allen S AD - From the Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK. AD - Department of Paediatric Gastroenterology, Hepatology and Nutrition, Alder Hey Children's NHS Foundation Trust, Liverpool, UK. FAU - Auth, Marcus Karl-Heinz AU - Auth MK AD - Department of Paediatric Gastroenterology, Hepatology and Nutrition, Alder Hey Children's NHS Foundation Trust, Liverpool, UK. AD - Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK. FAU - Kim, Jon Jin AU - Kim JJ AD - Department of Paediatric Nephrology, Nottingham Children's Hospital, Nottingham, UK. FAU - Vadamalayan, Babu AU - Vadamalayan B AD - Paediatric Gastroenterology and Nutrition Service, King's College Hospital NHS Foundation Trust, London, UK. LA - eng PT - Journal Article DEP - 20210615 PL - United States TA - JPGN Rep JT - JPGN reports JID - 101773885 PMC - PMC10191551 OTO - NOTNLM OT - anemia OT - children OT - iron deficiency OT - iron-replacement therapy COIS- Dr Allen has served as chair or member of data monitoring and safety boards for clinical trials of novel antimalarials for MMV Medicines for Malaria Venture, Switzerland, Shin Poong Pharma Co. Ltd., Korea, and Novartis Pharma AG, Switzerland, and for antiviral therapy for Ark Biosciences, Pty Ltd., Australia. Dr Kim has received speaker fees from Sandoz Ltd. Dr Allen has received research funding from MRC, NIHR, UKAid, Wellcome Trust, EPSRC, Children's Investment Fund Foundation, and Crohn's and Colitis UK. Dr Auth has received funding from Dr Falk Pharma and Nutricia. Dr Kim has received research funding from Chiesi Ltd. The remaining authors report no conflicts of interest. EDAT- 2021/06/15 00:00 MHDA- 2021/06/15 00:01 PMCR- 2021/06/15 CRDT- 2023/05/19 15:34 PHST- 2021/02/14 00:00 [received] PHST- 2021/04/20 00:00 [accepted] PHST- 2021/06/15 00:01 [medline] PHST- 2021/06/15 00:00 [pubmed] PHST- 2023/05/19 15:34 [entrez] PHST- 2021/06/15 00:00 [pmc-release] AID - 10.1097/PG9.0000000000000090 [doi] PST - epublish SO - JPGN Rep. 2021 Jun 15;2(3):e090. doi: 10.1097/PG9.0000000000000090. eCollection 2021 Aug.