Early Switch From Intravenous to Oral Antibiotics in Skin and Soft Tissue Infections: An Algorithm-Based Prospective...

Area of Science:

• Infectious Diseases
• Clinical Pharmacology
• Hospital Medicine

Background:

• Hospitalized patients with skin and soft tissue infections (SSTIs) typically receive intravenous (IV) empiric antibiotic therapy.
• Optimal timing for transitioning from IV to oral antibiotics for SSTIs remains unclear.
• This study investigated an algorithm-based approach for early IV to oral antibiotic switch.

Purpose of the Study:

• To evaluate the efficacy and safety of an algorithm-driven early switch from intravenous to oral antibiotics in hospitalized patients with SSTIs.
• To determine the impact of this early switch strategy on treatment duration and hospitalization length.

Main Methods:

• A prospective, nonrandomized trial involving 128 hospitalized patients with SSTIs across three institutions.
• Patients were assessed using an algorithm for eligibility to switch from IV to oral antibiotics within 48 hours.
• Primary outcome was a composite of clinical failure or all-cause mortality, with analysis of clinical and biochemical responses.

Main Results:

• 97 patients (75.8%) were assigned to the early switch group, demonstrating clinical improvement within 48 hours.
• The early switch group had a median total antibiotic duration of 11 days versus 15 days in the non-intervention group (P < .001).
• Median hospitalization was 5 days for the early switch group compared to 8 days for the non-intervention group (P < .001), with similar failure rates (5.2% vs 3.2%).

Conclusions:

• An algorithm-based early switch from IV to oral antibiotics for SSTIs proved successful in 95% of cases in this pilot trial.
• This strategy significantly reduced antibiotic and hospitalization durations.
• The findings support the use of this decision algorithm for optimizing SSTI management.