Individualized antibiotic treatment duration for newborns with early-onset infection

Individualized Duration of Antibiotic Treatment in Culture Negative Early Onset Infection in Term Born Newborns: A Nationwide Randomized Controlled Non-inferiority Trial.

Phase 4 Interventional Rigshospitalet, Denmark · NCT05329701

This study is testing if giving newborns with early-onset infection shorter, personalized antibiotic treatments based on their symptoms and blood tests can be just as safe and effective as the usual seven-day course.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment488 (estimated)
Ages1 Hour to 72 Hours
SexAll
SponsorRigshospitalet, Denmark Academic / other
Locations1 site (Copenhagen)
Trial IDNCT05329701 on ClinicalTrials.gov

What this trial studies

This trial is a nationwide multicenter open-label randomized controlled non-inferiority trial that compares individualized antibiotic treatment duration to the standard seven-day treatment for culture-negative early-onset infection in term newborns. The study evaluates the impact of stopping antibiotics based on clinical assessment and CRP levels, aiming to reduce unnecessary antibiotic exposure. By assessing symptoms and CRP levels, the trial seeks to determine if a tailored approach can safely shorten antibiotic therapy without increasing the risk of relapse.

Who should consider this trial

Good fit: Ideal candidates are term newborns with a gestational age of 35 weeks or more and a birth weight of at least 2000 grams who show signs of early-onset infection.

Not a fit: Patients with positive blood cultures or those who meet criteria to stop antibiotics within 48 hours will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could reduce antibiotic exposure in newborns, minimizing side effects and antibiotic resistance.

How similar studies have performed: Other studies have indicated that individualized treatment approaches can be effective, but this specific method for early-onset infection in newborns is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Gestational age ≥ 35 weeks
* Birth weight ≥ 2000
* Probable or possible infection according to the structured infection risk assessment
* Sufficient size blood culture, preferably 0.5-1 ml, but at least 0.2 ml, drawn after onset of symptoms but before start of antibiotic treatment
* Negative blood culture after 48 hours

Exclusion Criteria:

* Infants with positive blood culture
* Blood culture volume prior to antibiotics of \< 0.2 ml
* Site-specific infection as for example, meningitis or osteomyelitis
* Infant fulfill current recommendation to stop antibiotic treatment at 36-48 hours; Low suspicion of sepsis initially including few and vague symptoms, CRP maximum 35-50 mg/l, negative blood culture and no symptoms after 48 hours of treatment

Where this trial is running

Copenhagen

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Early-Onset Neonatal SepsisAntibiotic Side Effectneonatalearly-onsetinfectionantibiotic
Last reviewed 2026-06-13 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.