Safely Reduce Newborn Antibiotic Exposure With the Early-onset Sepsis Calculator

NCT ID: NCT05274776

Last Updated: 2024-02-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

1830 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-04-12

Study Completion Date

2024-10-31

Brief Summary

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Newborns are at risk for early-onset sepsis (EOS), which occurs within 72 hours after birth. The incidence of proven EOS is 0.5-2.0 per 1000 live births. The annual birth rate in the Netherlands is around 170.000, consequently the number of EOS cases varies between 85 to 340. However, about 5%, thus 8500, of late preterm and term newborns receive empiric antibiotic therapy in compliance with the current Dutch guideline. An alternative is the CE certified EOS calculator application, which calculates an individual EOS risk with treatment advice. In this prospective cluster-randomized multicenter trial the current Dutch guideline will be compared with the EOS calculator in newborns at risk for EOS.

The primary objectives of this study are:

1. To investigate whether the use of the EOS calculator reduces antibiotic exposure in newborns with suspected EOS in the first 24 hours after birth.
2. To investigate the presence of one or more of the following four predefined safety criteria, namely 1) the need for any respiratory support, and/or 2) the need for an intravascular fluid bolus for hemodynamic instability due to sepsis, and/or 3) referral to a Neonatal Intensive Care Unit for sepsis treatment, and/or 4) proven EOS.

Secondary objectives of the study are:

1. To investigate if the use of the EOS calculator decreases the total duration of antibiotic therapy in newborns with suspected EOS.
2. To investigate if the use of the EOS calculator decreases the percentage of antibiotic therapy started for suspected and, or proven EOS if symptoms started between 24-72 hours after birth.
3. To study the impact of (suspected) EOS on parents/guardians.

Detailed Description

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Suspicion of EOS is often based on risk factors and nonspecific clinical symptoms, such as maternal fever during labor or rapid breathing in the newborn. The combination of the difficulty to recognize EOS in time and the risk of serious consequences of EOS not treated timely has resulted in a low threshold for the start of empirical antibiotic therapy. This has led to significant overtreatment.

The current standard of care in the Netherlands is the Dutch Society of the Nederlands (NVK) guideline "Prevention and treatment of early-onset neonatal infections", which is an adaptation of the 2012 version of the National Institute for Health and Care Excellence (NICE) guideline "Antibiotics for early-onset neonatal infection: antibiotics for the prevention and treatment of early-onset neonatal infection". The NVK guideline uses risk factors and symptoms to categorically indicate which newborns need antibiotic therapy. Evaluating its use in 9 Dutch hospitals, limited adherence was found, especially when antibiotics were recommended by the guideline but withheld by the clinicians. This limited adherence indicates that it is desirable to amend the current guideline or to investigate the use of an alternative method.

A new method for determining which newborns need antibiotic therapy is the "EOS calculator". Developed in the United States, this method uses a combination of detailed information about 5 maternal risk factors and the presence of clinical neonatal symptoms to calculate an individual EOS risk and treatment advice.

For the Dutch situation, equipoise between the current NVK guideline and the EOS calculator can be established given balance of risk for both over- and undertreatment of EOS for both strategies. A large body of evidence now supports the safety of the EOS calculator approach, but validation outside of the North-American setting is limited, especially for safety outcomes.

A prospective cluster-randomized Dutch validation study of the EOS calculator is needed before implementation because of the following reasons:

1. Multicenter validation of actual EOS calculator use has not been performed in the Netherlands.
2. To date, no randomized prospective study of EOS calculator use with safety as an outcome measure has been performed. Specifically, there are no studies that take into account the potential effects of a treatment delay due to EOS calculator use. This especially holds true for cases that are clinically suspect for EOS, but not culture-confirmed.

Conditions

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Early-Onset Sepsis, Neonatal EOS

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

A prospective, cluster-randomized trial will be conducted; five hospitals will be randomized to NVK guidelines use, five hospitals will be randomized to EOS calculator use. After randomization, the assigned protocol is considered standard care for newborns with suspected EOS within 0-24 hours after birth during the study period in that hospital. This means that the NVK guidelines or the EOS calculator (depending on randomization) will be used for all newborns at risk for EOS (within 0-24 hours after birth) in the assigned hospital, independent of study participation. It is noteworthy that attending physicians have the option to choose for clinical management according to another protocol instead of the assigned protocol.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Hospitals nor physicians are blinded for the assigned study protocol. Since the assigned protocol is considered standard care for newborns with suspected EOS within 0-24 hours after birth during the study period in that hospital, independent of study participation, parents of participants are not blinded as well.

Study Groups

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NVK Guidelines

The NVK guidelines use 8 maternal and 15 neonatal risk factors, each categorized as either red flag or non-red flag. These criteria guide clinicians on the management in case of suspected EOS. Briefly, antibiotic treatment is recommended if at least one red flag and, or, two or more non-red flags are present. An observation period of at least 12 hours is recommended if one non-red flag is present. Antibiotics are recommended when an infection is suspected during this observation. Newborns without EOS risk factors, with a good clinical condition, and a gestational age of more than 36 weeks will be discharged. If the guidelines recommend an observation period, the newborn with a good clinical condition is discharged after repeating physical examination. In case antibiotic treatment is started, discharge depends on the duration of treatment and the clinical course. At discharge, parents are instructed to call the hospital in case of signs of infection within the first 14 days of life.

Group Type NO_INTERVENTION

No interventions assigned to this group

EOS Calculator

Using the EOS calculator application between 0-24 hours after birth, maternal EOS risk factors combined with the physical examination of the newborn are used to assign a risk category and accompanying clinical recommendation based on estimated EOS incidence for each newborn at-risk for an infection. The EOS calculator results are used to guide clinical management on performing either a diagnostic work-up and start of antibiotics for (suspected) EOS, or a conservative approach with routine controls of vital parameters every 3 hours. In case of routine controls, re-evaluation of physical appearance by a pediatric resident or pediatrician will take place within 24 hours postpartum. Newborns will be observed for at least 24 hours. In case antibiotics are started, the need for further treatment is depending on blood culture results, infection parameters, and clinical condition of the newborn. Discontinuation of antibiotics and discharge is at the discretion of the treating physician.

Group Type EXPERIMENTAL

EOS calculator

Intervention Type DEVICE

For this study the EOS calculator was developed as a mobile application (by everywhereIM), including CE marking. It is concerned a medical device for health care professionals.

Interventions

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EOS calculator

For this study the EOS calculator was developed as a mobile application (by everywhereIM), including CE marking. It is concerned a medical device for health care professionals.

Intervention Type DEVICE

Other Intervention Names

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early-onset sepsis calculator neonatal early-onset sepsis calculator sepsis risk calculator (SRC) newborn sepsis calculator neonatal EOS calculator

Eligibility Criteria

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Inclusion Criteria

* postmenstrual age of 34 weeks or more;
* age between 0-24 hours;
* at least one EOS risk factor or clinical sign of infection (suspected of EOS) present within the first 24 hours of life;
* parental/guardian consent.

Exclusion Criteria

* major congenital anomalies;
* language barrier (lack of effective communication or whenever it hinders understanding).
Maximum Eligible Age

24 Hours

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Dutch Society of Pediatrics

UNKNOWN

Sponsor Role collaborator

Zorgevaluatie Nederland

UNKNOWN

Sponsor Role collaborator

Care4Neo

UNKNOWN

Sponsor Role collaborator

everywhereIM

UNKNOWN

Sponsor Role collaborator

prof. dr. Frans B. Plötz

OTHER

Sponsor Role lead

Responsible Party

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prof. dr. Frans B. Plötz

Professor of Pediatric Health Care Evaluation

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Frans B. Plötz, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Amsterdam UMC, Tergooi Ziekenhuizen

Niek B. Achten, MD, PhD

Role: STUDY_DIRECTOR

Erasmus Medical Center

Bo M. van der Weijden, MD

Role: STUDY_DIRECTOR

Amsterdam UMC, Tergooi Ziekenhuizen

Locations

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Northwest Clinics

Alkmaar, , Netherlands

Site Status RECRUITING

FlevoHospital

Almere Stad, , Netherlands

Site Status RECRUITING

Amstelland Hospital

Amstelveen, , Netherlands

Site Status RECRUITING

OLVG

Amsterdam, , Netherlands

Site Status RECRUITING

Martini Hospital

Groningen, , Netherlands

Site Status RECRUITING

Spaarne Hospital

Haarlem, , Netherlands

Site Status RECRUITING

Dijklander Hospital

Hoorn, , Netherlands

Site Status RECRUITING

Canisius-Wilhelmina Hospital

Nijmegen, , Netherlands

Site Status RECRUITING

Máxima Medical Center

Veldhoven, , Netherlands

Site Status RECRUITING

Zaans Medical Centre

Zaandam, , Netherlands

Site Status RECRUITING

Countries

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Netherlands

Central Contacts

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Prof. Frans B. Plötz, MD, PhD

Role: CONTACT

+31(0)887531753

Bo M. van der Weijden, MD

Role: CONTACT

References

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van der Weijden BM, Janssen SWCM, van der Weide MC, Cornelisse-van Vugt RJPM, Ten Tusscher GW, Lutterman CAM, Kamps AWA, Lorente Flores CM, Hol J, van Laerhoven H, Rijpert M, Oeij NA, Schiering IAM, Obermann-Borst SA, Visser DH, van Leeuwen LM, Kornelisse RF, van Rossum AMC, Bijlsma MW, Plotz FB, Achten NB. Safety and effectiveness of the early-onset sepsis calculator to reduce antibiotic exposure in at-risk newborns: a cluster-randomised controlled trial. EClinicalMedicine. 2025 Aug 12;87:103419. doi: 10.1016/j.eclinm.2025.103419. eCollection 2025 Sep.

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van der Weijden BM, van der Weide MC, Plotz FB, Achten NB. Evaluating safety and effectiveness of the early-onset sepsis calculator to reduce antibiotic exposure in Dutch at-risk newborns: a protocol for a cluster randomised controlled trial. BMJ Open. 2023 Feb 14;13(2):e069253. doi: 10.1136/bmjopen-2022-069253.

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Related Links

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https://zorgevaluatienederland.nl/evaluations/eos-calculator-rct

Webpage of Zorgevaluatie Nederland, where everybody can find all study-related information, documents and progress.

Other Identifiers

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NL78203.018.21

Identifier Type: -

Identifier Source: org_study_id

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