Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up

Comparing two antibiotics for treating Staphylococcus aureus bloodstream infections

Official title: Randomized Controlled Clinical Trial Comparing Treatment With Cloxacillin Versus Benzylpenicillin in Bacteraemia Caused by Penicillin-susceptible Staphylococcus Aureus (PSSA)

Run by Region Skane · NCT06726395 · Data updated 2026-11-12

This study is testing whether benzylpenicillin works better than cloxacillin for treating bloodstream infections caused by Staphylococcus aureus in adults.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment420 (estimated)
SponsorRegion Skane
Academic / other
Locations1 site (Lund)
StatusRecruiting
StartedMarch 10, 2025
Main results expectedApril 2028
Study endsJuly 2028
Registry record updatedApril 30, 2026
Trial IDNCT06726395 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with penicillin-susceptible Staphylococcus aureus bacteraemia.

Probably not a fit

Patients with a penicillin allergy or those who are in terminal palliation may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to determine whether benzylpenicillin is a more effective treatment than cloxacillin for patients with penicillin-susceptible Staphylococcus aureus bacteraemia. Adult patients over 18 years old diagnosed with this condition will be randomly assigned to receive either benzylpenicillin or cloxacillin after their blood cultures confirm the presence of the bacteria. The study will monitor treatment outcomes, including adverse events and effectiveness, over a specified duration based on the type of infection. The trial is designed to provide insights into optimizing antibiotic therapy for this serious infection.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment options for patients suffering from Staphylococcus aureus bloodstream infections.

How similar studies have gone: While the comparison of these two antibiotics has not been extensively studied, previous research has indicated the importance of optimizing antibiotic therapy for Staphylococcus aureus infections.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Aged ≥18 with penicillin susceptible S. aureus bacteraemia (PSSA), and able to provide written informed consent.

Exclusion Criteria:

* allergy to penicillin,
* inability to give informed consent,
* concomitant growth of other clinically significant bacteria in blood cultures
* neutropenia

  -≥ 96h with prior antibiotics
* When the per oral follow up medication can not be flukloxacillin or penicillinV/Amoxicillin (ie prosthetic joint infection)
* Patients in terminal palliation, where death is expected within 7 days.
* Where the treating physician believes cloxacillin is not a first-line treatment.

Where it's running

  • Skånes universitetssjukhus, Region Skåne
    Lund, Sweden
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.