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2016 ; 11
(6
): 982-991
Nephropedia Template TP
gab.com Text
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English Wikipedia
Oral Hypoxia-Inducible Factor Prolyl Hydroxylase Inhibitor Roxadustat (FG-4592)
for the Treatment of Anemia in Patients with CKD
#MMPMID27094610
Provenzano R
; Besarab A
; Sun CH
; Diamond SA
; Durham JH
; Cangiano JL
; Aiello JR
; Novak JE
; Lee T
; Leong R
; Roberts BK
; Saikali KG
; Hemmerich S
; Szczech LA
; Yu KP
; Neff TB
Clin J Am Soc Nephrol
2016[Jun]; 11
(6
): 982-991
PMID27094610
show ga
BACKGROUND AND OBJECTIVES: Roxadustat (FG-4592), an oral hypoxia-inducible factor
prolyl hydroxylase inhibitor that stimulates erythropoiesis, regulates iron
metabolism, and reduces hepcidin, was evaluated in this phase 2b study for
safety, efficacy, optimal dose, and dose frequency in patients with nondialysis
CKD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The 145 patients with
nondialysis CKD and hemoglobin ?10.5 g/dl were randomized into one of six cohorts
of approximately 24 patients each with varying roxadustat starting doses (tiered
weight and fixed amounts) and frequencies (two and three times weekly) followed
by hemoglobin maintenance with roxadustat one to three times weekly. Treatment
duration was 16 or 24 weeks. Intravenous iron was prohibited. The primary end
point was the proportion of patients achieving hemoglobin increase of ?1.0 g/dl
from baseline and hemoglobin of ?11.0 g/dl by week 17 (16 weeks of treatment).
Secondary analyses included mean hemoglobin change from baseline, iron
utilization, and serum lipids. Safety was evaluated by frequency/severity of
adverse events. RESULTS: Of the 145 patients enrolled, 143 were evaluable for
efficacy. Overall, 92% of patients achieved hemoglobin response. Higher compared
with lower starting doses led to earlier achievement of hemoglobin response.
Roxadustat-induced hemoglobin increases were independent of baseline C-reactive
protein levels and iron repletion status. Overall, over the first 16 treatment
weeks, hepcidin levels decreased by 16.9% (P=0.004), reticulocyte hemoglobin
content was maintained, and hemoglobin increased by a mean (±SD) of 1.83 (±0.09)
g/dl (P<0.001). Overall mean total cholesterol level was reduced by a mean (±SD)
of 26 (±30) mg/dl (P<0.001) after 8 weeks of therapy, independent of the use of
statins or other lipid-lowering agents. No drug-related serious adverse events
were reported. CONCLUSIONS: In patients with nondialysis CKD who were anemic,
various starting dose regimens of roxadustat were well tolerated and achieved
anemia correction with reduced serum hepcidin levels. After anemia correction,
hemoglobin was maintained by roxadustat at various dose frequencies without
intravenous iron supplementation.
|Administration, Oral
[MESH]
|Adult
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Anemia/blood/*drug therapy/etiology
[MESH]
|C-Reactive Protein/metabolism
[MESH]
|Cholesterol/blood
[MESH]
|Enzyme Inhibitors/administration & dosage/adverse effects/*therapeutic use
[MESH]
|Female
[MESH]
|Glycine/administration & dosage/adverse effects/*analogs &
derivatives/therapeutic use
[MESH]