1. Randomized Clinical Trial of Sevelamer Carbonate on Serum Klotho and Fibroblast Growth Factor 23 in CKD
- Author
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Bertrand Dussol, Sophie Liabeuf, Eric Thervet, Pablo Ureña, Najeh El Esper, Christian Combe, Jean-Philippe Ryckelynck, Gabriel Choukroun, Dominique Prié, Luc Frimat, Romuald Mentaverri, Philippe Vanhille, Denis Fouque, Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Amiens-Picardie, Mécanismes physiopathologiques et conséquences des calcifications vasculaires - UR UPJV 7517 (MP3CV), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie, AURA [Paris], Bioingénierie tissulaire (BIOTIS), Université de Bordeaux (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Bordeaux [Bordeaux], Centre de néphrologie et transplantation rénale [Hôpital de la Conception - APHM], Assistance Publique - Hôpitaux de Marseille (APHM)-Hôpital de la Conception [CHU - APHM] (LA CONCEPTION), Vascular research center of Marseille (VRCM), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Cardiovasculaire, métabolisme, diabétologie et nutrition (CarMeN), Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Service de médecine interne et néphrologie, CH Valenciennes, Service de Néphrologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Service de Néphrologie et Hémodialyse [CHU HEGP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Paris-Centre de Recherche Cardiovasculaire (PARCC - UMR-S U970), Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département Hospitalo-Universitaire Paris Ouest (Paris Descartes), Université Paris Descartes - Paris 5 (UPD5), Centre de recherche Croissance et signalisation (UMR_S 845), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), and DESSAIVRE, Louise
- Subjects
Fibroblast growth factor 23 ,medicine.medical_specialty ,Epidemiology ,medicine.drug_class ,[SDV]Life Sciences [q-bio] ,030232 urology & nephrology ,Urology ,Renal function ,030204 cardiovascular system & hematology ,Critical Care and Intensive Care Medicine ,Fibroblast growth factor ,Sevelamer ,Placebo ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Interquartile range ,Medicine ,Transplantation ,Creatinine ,business.industry ,Phosphate binder ,[SDV] Life Sciences [q-bio] ,chemistry ,Nephrology ,business ,medicine.drug - Abstract
International audience; Background and objectives: Epidemiologic studies suggest that higher serum phosphaturic hormone fibroblast growth factor 23 levels are associated with increase morbidity and mortality. The aim of the FGF23 Reduction Efficacy of a New Phosphate Binder in CKD Trial was to evaluate the effect of sevelamer carbonate on serum C-terminal fibroblast growth factor 23 levels in normophosphatemic patients with CKD stage 3b/4. Design, setting, participants, & measurements: Patients with CKD, eGFR between 45 and 15 ml/min per 1.73 m(2), fasting serum phosphate concentration >3.1 mg/dl, and serum C-terminal fibroblast growth factor 23 >80 relative units/ml were included in our double-blind, placebo-controlled, randomized multicenter study. All patients received 100,000 IU cholecalciferol at time of randomization. Participants received either placebo or sevelamer carbonate 4.8 g daily during a 12-week period. Biologic parameters, including serum C-terminal fibroblast growth factor 23, intact fibroblast growth factor 23, and a-klotho, were evaluated at baseline and 12 weeks after inclusion. Results: Of 96 screened patients, 78 (mean +/- SD age: 63 +/- 13 years old; 70% men; mean eGFR: 27 +/- 9 ml/min per 1.73 m(2)) met the inclusion criteria. At baseline, mean eGFR was 27 +/- 9 ml/min per 1.73 m(2), mean serum phosphate level was 3.8 +/- 0.5 mg/dl, and median (interquartile range) serum C-terminal fibroblast growth factor 23 level was 157 (120-241) relative units/ml. After 12 weeks of treatment, urinary phosphate-to-creatinine ratio fell significantly in the sevelamer group. The sevelamer and placebo groups did not differ significantly in terms of median change in serum C-terminal fibroblast growth factor 23 levels: the median (interquartile range) change was 38 (-13-114) relative units/ml in the placebo group and 37 (-1-101) relative units/ml in the sevelamer group (P=0.77). There was no significant difference in serum intact fibroblast growth factor 23, alpha-klotho, or phosphate levels changes between the two groups. Serum total and LDL cholesterol levels fell significantly in the sevelamer group. Conclusions: In our double-blind, placebo-controlled, randomized study performed in normophosphatemic patients with CKD, a 12-week course of sevelamer carbonate significantly reduced phosphaturia without changing serum phosphorus but did not significantly modify serum C-terminal fibroblast growth factor 23 and intact fibroblast growth factor 23 or alpha-klotho levels.
- Published
- 2017