Pharmacokinetics-pharmacodynamics of quinolones against Streptococcus pneumoniae in patients with community-acquired pneumonia.

Exposure-response analyses were performed using data from 89 patients (10 clinical trials) with Streptococcus pneumoniae community-acquired pneumonia who received quinolones. Relationships between the free-drug AUC/MIC ratio and clinical and microbiologic response were identified. Such data may be useful to establish prior expectations for the no-treatment effect when conducting noninferiority clinical trials.