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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 Br+J+Clin+Pharmacol
2015 ; 80
(5
): 1051-63
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Pharmacokinetics and pharmacodynamics of PF-05231023, a novel long-acting FGF21
mimetic, in a first-in-human study
#MMPMID25940675
Dong JQ
; Rossulek M
; Somayaji VR
; Baltrukonis D
; Liang Y
; Hudson K
; Hernandez-Illas M
; Calle RA
Br J Clin Pharmacol
2015[Nov]; 80
(5
): 1051-63
PMID25940675
show ga
AIMS: The aim of the present study was to evaluate the
pharmacokinetics/pharmacodynamics (PK/PD), safety and tolerability of single
intravenous (IV) doses of PF-05231023, a long acting fibroblast growth factor 21
(FGF21) analogue being developed for the treatment of type 2 diabetes mellitus
(T2DM). METHODS: T2DM subjects (glycosylated haemoglobin: 7.0-10.5%; on stable
metformin therapy and/or diet and exercise) were randomized to receive a single
dose of placebo or PF-05231023 (0.5-200?mg). Safety evaluations were performed up
to 14?days after dosing. PK and PD endpoints were measured and a PK/PD model was
developed for triglyceride - an early marker of drug activity. RESULTS: No
antidrug antibody or serious adverse events (AEs) were observed. The most
frequent AEs were gastrointestinal but were generally mild. Plasma PF-05231023
levels peaked immediately post-IV dosing, with mean terminal half-lives of
6.5-7.7?h and 66.5- 96.6?h for intact C- and N-termini, respectively. Intact
C-terminus exposures increased proportionally with increasing dose, whereas
N-terminus exposures appeared to trend higher than dose-proportionally. Although
no apparent effect on plasma glucose was seen, dose-dependent decreases in
triglyceride were observed, with a maximum reduction of 48.5?±?10.0%
(mean?±?standard deviation) for the 200?mg dose compared with a reduction of
19.1?±?26.4% for placebo, demonstrating proof of pharmacology. Moreover, a
reduction in total cholesterol and low-density lipoprotein cholesterol and an
increase in high-density lipoprotein cholesterol were observed in the high-dose
groups. CONCLUSIONS: Single IV doses of PF-05231023 up to 200?mg were generally
safe and well tolerated by subjects with T2DM. The observed early sign of
pharmacology supports further clinical testing of PF-05231023 upon repeated
administration.