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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Blood+Cancer+J
2015 ; 5
(8
): e335
Nephropedia Template TP
gab.com Text
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English Wikipedia
A phase 2 randomized dose-ranging study of the JAK2-selective inhibitor
fedratinib (SAR302503) in patients with myelofibrosis
#MMPMID26252788
Pardanani A
; Tefferi A
; Jamieson C
; Gabrail NY
; Lebedinsky C
; Gao G
; Liu F
; Xu C
; Cao H
; Talpaz M
Blood Cancer J
2015[Aug]; 5
(8
): e335
PMID26252788
show ga
In this phase 2 open-label randomized study, 31 patients with intermediate-2 or
high-risk myelofibrosis received fedratinib 300, 400 or 500?mg once daily in
consecutive 4-week cycles. Mean spleen volume reductions at 12 weeks (primary end
point) were 30.3% (300?mg), 33.1% (400?mg) and 43.3% (500?mg). Spleen response
rates (patients achieving ?35% spleen reduction) at 12/24 weeks were 30%/30%
(300?mg), 50%/60% (400?mg) and 64%/55% (500?mg), respectively. By 4 weeks,
improvements in myelofibrosis (MF)-associated symptoms were observed. At 48
weeks, 68% of patients remained on fedratinib and 16% had discontinued because of
adverse events (AEs). Common grade 3/4 AEs were anemia (58%), fatigue (13%),
diarrhea (13%), vomiting (10%) and nausea (6%). Serious AEs included one case of
reversible hepatic failure and one case of Wernicke's encephalopathy (after
analysis cutoff). Fedratinib treatment led to reduced STAT3 phosphorylation but
no meaningful change in JAK2V617F allele burden. Significant modulation (P<0.05,
adjusted for multiple comparisons) of 28 cytokines was observed, many of which
correlated with spleen reduction. These data confirm the clinical activity of
fedratinib in MF. After the analysis cutoff date, additional reports of
Wernicke's encephalopathy in other fedratinib trials led to discontinuation of
the sponsored clinical development program.
|Adult
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Antineoplastic Agents/adverse effects/pharmacokinetics/*therapeutic use
[MESH]