Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25534724
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Antimicrob+Agents+Chemother
2015 ; 59
(3
): 1441-5
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Pharmacokinetics of LFF571 and vancomycin in patients with moderate Clostridium
difficile infections
#MMPMID25534724
Bhansali SG
; Mullane K
; Ting LS
; Leeds JA
; Dabovic K
; Praestgaard J
; Pertel P
Antimicrob Agents Chemother
2015[Mar]; 59
(3
): 1441-5
PMID25534724
show ga
Clostridium difficile infection causes diarrheal disease with potentially fatal
complications. Although treatments are available, including vancomycin,
metronidazole, and fidaxomicin, the recurrence of disease after therapy remains a
problem. LFF571 is a novel thiopeptide antibacterial that shows in vitro potency
against C. difficile that is comparable to or greater than that of other
clinically used antibiotics. Here, we compare the pharmacokinetics (PK) of LFF571
and vancomycin in patients with C. difficile infection as part of an early
efficacy study. This multicenter, randomized, evaluator-blind, and
active-controlled study evaluated the safety, efficacy, and pharmacokinetics of
LFF571 in adults with primary episodes or first relapses of moderate C. difficile
infections. Patients were randomized to receive 200 mg of LFF571 or 125 mg of
vancomycin four times daily for 10 days. The PK parameters were calculated from
drug concentrations measured in serum and fecal samples. The systemic exposure
following oral administration of 200 mg of LFF571 four times per day for 10 days
in patients with C. difficile infection was limited. The highest LFF571 serum
concentration observed was 41.7 ng/ml, whereas the levels in feces at the end of
treatment were between 107 and 12,900 ?g/g. In comparison, the peak vancomycin
level observed in serum was considerably higher, at 2.73 ?g/ml; the levels of
vancomycin in feces were not measured. Similar to healthy volunteers, patients
with C. difficile infections exhibited high fecal concentrations and low serum
levels of LFF571. These results are consistent with the retention of LFF571 in
the lumen of the gastrointestinal tract. (This study has been registered at
ClinicalTrials.gov under registration no. NCT01232595.).