Telavancin Pediatric PK Study (Ages >12 Months to 17 Years)

This is a multicenter, open-label, single-dose pharmacokinetic (PK) study. Infants, children, and adolescents will receive a single 10 mg/kg dose of telavancin infused intravenously (IV) over 60 minutes in male or female infants, children, and adolescents (\> 12 months to 17 years, inclusive) who require systemic antibiotic therapy for the treatment or prevention of a known or suspected bacterial infection.

Blood samples for PK assessment will be taken as follows: 1.0 hour (±5 min), 1.5 hours (±5 min), 2 hours (±5 min), 6 hours (±30 min), 12 hours (±30 min) and 24 hours (±30 minutes) after the beginning of the infusion. The timing of PK sampling may be optimized after the completion of the older age groups (Cohorts 1-3) to assure that the minimum numbers of samples are collected in the youngest age group \> 12months to \< 24 months. Plasma exposures that will be compared to adult exposures are the primary assessment for this study.

Subject safety will be monitored during the study using standard measures, including physical examinations, vital signs, 12-lead ECGs, clinical laboratory assessments, urinalysis, concomitant medication usage, and adverse event reporting.