A multicenter study of grepafloxacin and clarithromycin in the treatment of patients with community-acquired pneumonia
A multicenter study of grepafloxacin and clarithromycin in the treatment of patients with community-acquired pneumonia
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DOI:
10.1378/chest.116.4.974
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发表时间:
1999-10-01
期刊:
影响因子:
9.6
通讯作者:
Staley, H
中科院分区:
文献类型:
--
作者:
Moola, S;Hagberg, L;Staley, H
Study objectives: To compare the efficacies of 10-day regimens of grepafloxacin (GPX) (Raxar or Vaxar; Glare Wellcome; Greenford, UK), 600 qd, and clarithromycin (CLA) (Klacid, Biaxin, or Klaracid; Abbott Laboratories; Chicago, IL), 500 mg bid, in patients with community-acquired pneumonia (CAP), on the basis of clinical response, including radiographic evidence, and bacteriologic efficacy.Design: Phase IIIb, double-blind, double-dummy, randomized, prospective, parallel-group, comparative study conducted at 58 centers in 11 countries.Patients and setting: Adult patients with signs and symptoms of CAP that was confirmed by radiographic evidence and who did not require parenteral therapy were included in the study.Assessments: Patients were assessed before treatment, during treatment, after treatment, and at follow-up (28 to 35 days after treatment completion). Clinical response was evaluated. Blood and sputum samples were cultured for bacterial pathogens, and serology testing was performed to detect atypical pneumonia.Results: A total of 504 patients were enrolled into the trial: 251 were randomly assigned to receive GFX and 253 to receive CLA. In patients able to be clinically evaluated, clinical success rates at follow-up were 147 of 163 patients (90%) in the GFX group and 148 of 167 patients (89%) in the CLA group (95% confidence interval, -6% to 9%). Pretreatment pathogens were confirmed in 131 of 504 patients (26%), either by culture or serology testing, the primary pathogens being Streptococcus pneumoniae (22%), Haemophilus influenzae (17%), Mycoplasma pneumoniae (25%), and Chlamydia pneumoniae (11%). For patients able to be evaluated who had typical pathogens, bacteriologic success was achieved in 92% of the patients in each treatment group. For patients able to be evaluated who had atypical pathogens, 18 of 18 patients (100%) in the GPX and 23 of 26 patients (88%) in the CLA group had a successful clinical outcome. There were similar rates of adverse events in each group, resulting in less than or equal to 7% withdrawal from treatment; gastrointestinal events were the most common.Conclusions: GFX, 600 mg cid, was equivalent to CLA, 500 mg bid, in treating adult patients with CAP. Both treatments were well tolerated.