title: Absence of pharmacokinetic interference of moxifloxacin on cyclosporine and tacrolimus in kidney transplant recipients.
abstract: This study investigates the potential pharmacokinetic interactions between an antimicrobial agent, moxifloxacin, and 2 immunosuppressant drugs, cyclosporine and tacrolimus, in kidney transplant recipients. Twenty-two kidney transplant patients needing antibiotic therapy for urinary tract infections are enrolled. Eleven patients are under cyclosporine treatment and the other 11 patients are under tacrolimus treatment. Because the urinary tract infections are caused by gram-negative aerobes sensitive to moxifloxacin, this antibiotic is administered by oral route at a dose of 400 mg/d for 1 week; in each patient pharmacokinetic studies are carried out before and at the seventh day of therapy. For both immunosuppressors, none of the pharmacokinetic parameters investigated show statistically significant differences between values obtained before and during treatment with moxifloxacin. In fact, the concentration-time profiles of monoclonal cyclosporine, polyclonal cyclosporine, and tacrolimus are not significantly different before and during the antimicrobial therapy. The results of the present study rule out interference of moxifloxacin with both cyclosporine and tacrolimus kinetics and indicate that the concomitant administration of the fluoroquinolone and cyclosporine or tacrolimus does not require modifications of the dosages of 2 immunosuppressant drugs.
authors.affiliation: Department of Neurosciences, Unit of Clinical Pharmacology. School of Medicine, Federico II University, Via S. Pansini 5, 80131 Naples, Italy. docapone@unina.it
authors.forename: Domenico
authors.initials: D
authors.lastname: Capone
authors.forename: Giovanni
authors.initials: G
authors.lastname: Tarantino
authors.forename: Giuliano
authors.initials: G
authors.lastname: Polichetti
authors.forename: Irket
authors.initials: I
authors.lastname: Kadilli
authors.forename: Massimo
authors.initials: M
authors.lastname: Sabbatini
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Basile
authors.forename: Rosa
authors.initials: R
authors.lastname: Carrano
authors.forename: Riccardo
authors.initials: R
authors.lastname: Nappi
authors.forename: Stefano
authors.initials: S
authors.lastname: Federico
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000890:Anti-Infective Agents / Q000494:pharmacology / Q000627:therapeutic use; D001372:Aza Compounds / Q000494:pharmacology* / Q000627:therapeutic use; D016572:Cyclosporine / Q000493:pharmacokinetics* / Q000627:therapeutic use; D005260:Female; D024841:Fluoroquinolones; D006090:Gram-Negative Bacteria / Q000302:isolation & purification; D016905:Gram-Negative Bacterial Infections / Q000188:drug therapy / Q000382:microbiology; D006801:Humans; D007166:Immunosuppressive Agents / Q000493:pharmacokinetics* / Q000627:therapeutic use; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D000077266:Moxifloxacin; D011804:Quinolines / Q000494:pharmacology* / Q000627:therapeutic use; D016559:Tacrolimus / Q000493:pharmacokinetics* / Q000627:therapeutic use; D013997:Time Factors; D014552:Urinary Tract Infections / Q000188:drug therapy / Q000382:microbiology
chemical_list: D000890:Anti-Infective Agents; D001372:Aza Compounds; D024841:Fluoroquinolones; D007166:Immunosuppressive Agents; D011804:Quinolines; D016572:Cyclosporine; D000077266:Moxifloxacin; D016559:Tacrolimus