title: Determination of teicoplanin trough concentration target and appropriate total dose during the first 3 days: a retrospective study in patients with MRSA infections.
abstract: An initial loading procedure has been recommended to enable teicoplanin to promptly reach an effective serum concentration for the treatment of methicillin-resistant Staphylococcus aureus (MRSA). This study aimed to retrospectively evaluate the pharmacokinetics and pharmacodynamics of teicoplanin to determine the therapeutic target for the teicoplanin trough concentration and an appropriate dosing method during the first 3 days. The mean trough concentrations were 13.2 mg/L for patients with eradication of MRSA. Moreover, logistic regression analysis showed that the teicoplanin trough concentration was 13 mg/L to achieve MRSA eradication with a probability of 89.0%. The rates of achieving >or=13 mg/L in <or=24, 24-36 and >or=36 mg/kg (total dose during the first 3 days) groups were 9.1, 48.4 and 87.5%, respectively. These results suggest that the administration of >or=36 mg/kg during the first 3 days is appropriate to promptly obtain a trough concentration target of >or=13 mg/L for the initial treatment of MRSA infections.
authors.affiliation: Department of Clinical Pharmacy and Pharmacology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Matsumoto
authors.forename: Naoko
authors.initials: N
authors.lastname: Kanazawa
authors.forename: Kazuro
authors.initials: K
authors.lastname: Ikawa
authors.forename: Tomohide
authors.initials: T
authors.lastname: Fukamizu
authors.forename: Akari
authors.initials: A
authors.lastname: Shigemi
authors.forename: Keiko
authors.initials: K
authors.lastname: Yaji
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Shimodozono
authors.forename: Norifumi
authors.initials: N
authors.lastname: Morikawa
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Takeda
authors.forename: Katsushi
authors.initials: K
authors.lastname: Yamada
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000900:Anti-Bacterial Agents / Q000008:administration & dosage* / Q000097:blood / Q000493:pharmacokinetics; D016903:Drug Monitoring / Q000379:methods; D005260:Female; D006801:Humans; D007677:Kidney Function Tests; D008111:Liver Function Tests; D016015:Logistic Models; D008297:Male; D055624:Methicillin-Resistant Staphylococcus aureus / Q000187:drug effects* / Q000302:isolation & purification; D008875:Middle Aged; D012189:Retrospective Studies; D013203:Staphylococcal Infections / Q000097:blood / Q000188:drug therapy*; D017334:Teicoplanin / Q000008:administration & dosage* / Q000097:blood* / Q000493:pharmacokinetics
chemical_list: D000900:Anti-Bacterial Agents; D017334:Teicoplanin