Single Dose and Multiple Dose Escalation Trial of an Oral Formulation of MRX-4

Randomized, Double-Blind, Placebo-Controlled Three-Part Phase 1 Study of Safety, Tolerability, Pharmacokinetics, and Food Effect of MRX-4 Administered Orally to Healthy Volunteers in Single and Multiple Ascending Dose Cohorts to Evaluate Drug Interactions With Omeprazole

A phase one study of the safety, tolerability, and pharmacokinetics of a new oxazolidinone antibiotic. Cohorts of healthy adults (female and male) will participate in:

single dose escalation study of increasing doses of MRX-4 given by mouth others will participate in multiple dose escalation cohorts of MRX-4 given twice daily by mouth.

other cohorts of subjects will participate in the study to evaluate the impact of concomitant food or Omeprazole on safety, tolerability and pharmacokinetics of MRX-4

Inclusion Criteria:

• Healthy subjects

Exclusion Criteria:

• Underlying hepatic, renal, metabolic, hematologic, cardiovascular, or immunologic disorder