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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 Am+J+Nephrol
2017 ; 45
(3
): 257-266
Nephropedia Template TP
gab.com Text
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English Wikipedia
Rationale and Design of a Clinical Trial Investigating Tolvaptan Safety and
Efficacy in Autosomal Dominant Polycystic Kidney Disease
#MMPMID28166521
Torres VE
; Devuyst O
; Chapman AB
; Gansevoort RT
; Perrone RD
; Ouyang J
; Blais JD
; Czerwiec FS
; Sergeyeva O
Am J Nephrol
2017[]; 45
(3
): 257-266
PMID28166521
show ga
BACKGROUND: In TEMPO 3:4, the vasopressin V2-receptor antagonist tolvaptan slowed
kidney growth and function decline in autosomal dominant polycystic kidney
disease (ADPKD) patients with relatively preserved kidney function. METHODS:
Prospective, phase 3b, multi-center, randomized-withdrawal, placebo-controlled,
double-blind trial of tolvaptan in ADPKD patients with late stage 2 to early
stage 4 chronic kidney disease (CKD). The primary endpoint was estimated
glomerular filtration rate (eGFR) change from pre-treatment baseline to
post-treatment follow-up. Secondary endpoints included annualized eGFR slope,
incidence of ADPKD complications, and overall and hepatic safety profiles.
Participants were 18-55 year-old ADPKD patients with baseline eGFR ?25 and ?65
mL/min/1.73 m2 or 56-65 year-old with eGFR ?25 and ?44 mL/min/1.73 m2 and
evidence of eGFR decline >2.0 mL/min/1.73 m2 per year. Daily split doses of
tolvaptan were titrated to tolerance (30/15, 45/15, 60/30, or 90/30 mg) and
maintained for 12 months, after an 8-week pre-randomization period to screen out
subjects unable to tolerate at least 60/30 mg for 3 weeks. RESULTS: Of 1,495
subjects who entered the tolvaptan titration period, 125 (8.4%) discontinued the
study before randomization. One thousand three hundred seventy subjects (684
tolvaptan, 686 placebo) from 213 centers across 21 countries were randomized.
Baseline demographics were well balanced across treatment arms. Information
collected during the study included eGFR, survey scores (PKD history and
outcome), adverse events, vital signs, hematology, urinalysis, and serum
chemistry tests. CONCLUSION: Replicating Evidence of Preserved Renal Function: An
Investigation of Tolvaptan Safety and Efficacy (REPRISE) determines whether
tolvaptan administered over 1 year exhibits disease-modifying properties in ADPKD
patients with late stage 2 to early stage 4 CKD, which provides an important
therapeutic advancement for this difficult-to-treat disease.