Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=41167271&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Penetration of Contezolid into bone tissues and body fluids in patients undergoing artificial hip or knee replacement surgery: A prospective cohort study #MMPMID41167271
Yin F; Wu H; Chen Y; Chen Y; Chen M; Guo B; Wang H; Cao Y; Chen T; Zhang J
J Glob Antimicrob Resist 2025[Oct]; 45 (?): 322-328 PMID41167271show ga
PURPOSE: This study aimed to examine the pharmacokinetic (PK) characteristics and penetration of contezolid into bone tissues and body fluids in patients undergoing artificial hip or knee replacement surgery. METHODS: In a prospective, single center, open label, cohort study, patients received 800 mg contezolid tablets orally, twice a day, for at least two days before surgery. The steady-state PK parameters of contezolid in plasma, body fluids and bone tissues were determined using both noncompartmental analysis (NCA) and population pharmacokinetic (PopPK) modeling. RESULTS: The plasma peak concentration (C(max)) of contezolid was 7.25 +/- 5.27 mg/L in 6 patients undergoing hip replacement surgery, while the corresponding value was 11.46 +/- 6.48 mg/L in 15 patients undergoing knee replacement. The median time to maximum plasma concentration (T(max)) was 1 hour after multiple oral doses of 800 mg contezolid. The ratio of the area under the concentration-time curve of contezolid from 0-12 h (AUC(0-12h,ss)) in tissue to the AUC(0-12h,ss) in plasma was 0.39 to 1.34 in patients undergoing hip replacement surgery, with body fluid-to-plasma AUC(0-12h,ss) ratio was 0.69. In patients undergoing knee replacement, the tissue-to-plasma AUC(0-12h,ss) ratio was 0.12-0.56 and body fluid-to-plasma AUC(0-12h,ss) ratio was 0.51. CONCLUSIONS: The penetration of contezolid into bone and joint tissues can justify the utility of contezolid in managing infections during joint replacement surgery. TRIAL REGISTRATION: http://www.chinadrugtrials.org.cn/ (identifier: CTR20230232?.