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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Greenwood, Sharlene A. Beckley-Hoelscher, Nicholas Asgari, Elham Ayis, Salma Baker, Luke A. Banerjee, Debasish Bhandari, Sunil Bramham, Kate Chilcot, Joseph Burton, James Kalra, Philip A. Lightfoot, Courtney J. McCafferty, Kieran Mercer, Thomas H. Okonko, Darlington O. Oliveira, Benjamin Reid, Chante Smith, Alice C. Swift, Pauline A. Mangelis, Anastasios Watson, Emma Wheeler, David C. Wilkinson, Thomas J. Reid, Fiona Macdougall, Iain C. |
| Abstract | Background Many people living with chronic kidney disease (CKD) are iron deficient, even though they may not be anaemic. The Iron and Muscle study aims to evaluate whether iron supplementation reduces symptoms of fatigue, improves muscle metabolism, and leads to enhanced exercise capacity and physical function. We report here the trial design and baseline characteristics. Methods This is a prospective, double-blind multicentre randomised controlled trial (RCT) including 75 non-dialysis stage 3–4 CKD patients with iron deficiency but without anaemia. Patients were randomly (1:1) assigned to either: i) intravenous iron therapy, or ii) placebo, with concurrent recruitment of eight CKD non-iron deficient participants and six healthy volunteers. The primary outcome of the study is the six-minute walk test (6MWT) distance between baseline and four-weeks. An additional exercise training programme for patients in both groups was initiated and completed between 4 and 12 weeks, to determine the effect of iron repletion compared to placebo treatment in the context of patients undertaking an exercise programme. Additional secondary outcomes include fatigue, physical function, muscle strength, muscle metabolism, quality of life, resting blood pressure, clinical chemistry, safety and harms associated with the iron therapy intervention and the exercise training intervention, and hospitalisations. All outcomes were conducted at baseline, 4, and 12 weeks, with a nested qualitative study, to investigate the experience of living with iron deficiency and intervention acceptability. The cohort have been recruited and baseline assessments undertaken. Results Seventy-five individuals were recruited. 44% of the randomised cohort were male, the mean (SD) age was 58 (14) years, and 56% were White. Body mass index was 31 (7) kg/m2; serum ferritin was 59 (45) μg/L, transferrin saturation was 22 (10) %, and haemoglobin was 125 (12) g/L at randomisation for the whole group. Estimated glomerular filtration rate was 35 (12) mL/min/1.73 m2 and the baseline 6MWT distance was 429 (174) m. Conclusion The results from this study will address a substantial knowledge gap in the effects of intravenous iron therapy, and offer potential clinical treatment options, to improve exercise capacity, physical function, fatigue, and muscle metabolism, for non-dialysis patients with CKD who are iron-deficient but not anaemic. It will also offer insight into the potential novel effects of an 8-week exercise training programme. Trial registration EudraCT: 2018–000,144-25 Registered 28/01/2019. |
| Related Links | https://bmcnephrol.biomedcentral.com/counter/pdf/10.1186/s12882-022-02896-3.pdf |
| Ending Page | 16 |
| Page Count | 16 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14712369 |
| DOI | 10.1186/s12882-022-02896-3 |
| Journal | BMC Nephrology |
| Issue Number | 1 |
| Volume Number | 23 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2022-07-27 |
| Access Restriction | Open |
| Subject Keyword | Nephrology Internal Medicine Iron Chronic kidney disease Exercise Physical activity Muscle metabolism Biopsy Magnetic resonance imaging Quality of life |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nephrology |
| Journal Impact Factor | 2.2/2023 |
| 5-Year Journal Impact Factor | 2.6/2023 |
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