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Not yet recruitingNCT07590648E-STOP2Updated May 15, 2026

Early Discontinuation of Antibiotics in Paediatric High-risk Febrile Neutropenia

A Phase 4 interventional study of Early Discontinuation of Antibiotics and Standard Antibiotic Continuation Strategy in Febrile Neutropenia (FN), Pediatric Cancer and Hematologic Malignancies, sponsored by Hospital Universitari Vall d'Hebron Research Institute. Not yet recruiting at 4 sites in Spain. Open to participants aged Up to 18 Years. Per ClinicalTrials.gov, last updated 2026-05-15.

Sponsored by Hospital Universitari Vall d'Hebron Research Institute · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
136
Allocation
Randomized
Ages
Up to 18 Years
Sex
All
01

Study summary

The goal of this clinical trial is to evaluate whether stopping antibiotic treatment early is safe in paediatric patients with cancer who develop high-risk febrile neutropenia but show good clinical evolution and low biomarker levels 48-72 hours after the episode.

The main questions it aims to answer are:

Is early discontinuation of antibiotics as safe as the standard strategy in terms of preventing invasive bacterial infections (such as sepsis, microbiologically documented infection, ICU admission, or death)? Does this strategy reduce the number of days on antibiotics without increasing infection-related complications?

Researchers will compare early antibiotic discontinuation with the standard care strategy to see whether the early-stop approach provides similar safety while reducing antibiotic exposure.

Participants will:

Receive standard initial antibiotic therapy for febrile neutropenia. Undergo clinical and biomarker evaluations (including CRP and PCT).

Be randomly assigned to:

Experimental group: early discontinuation of antibiotics, or Control group: continuation of the standard antibiotic strategy.

Be followed for 28 days after randomisation to monitor safety outcomes and treatment effects.

Read the detailed description

Children with cancer who develop febrile neutropenia (FN) routinely receive broad-spectrum intravenous antibiotics to prevent severe bacterial infections. Although this approach is essential in high-risk cases, prolonged antibiotic exposure increases the risk of adverse effects, antimicrobial resistance, drug toxicity, and longer hospital stays. Advances in risk stratification-particularly through clinical stability assessment and biomarkers such as C-reactive protein (CRP) and procalcitonin (PCT)-now allow earlier identification of patients who may no longer require intensive antibiotic coverage.

This study evaluates whether early discontinuation of antibiotic therapy is safe in paediatric patients with cancer who present high-risk FN but show a favourable clinical course 48-72 hours after onset. Eligible patients must meet predefined criteria indicating low risk of invasive bacterial infection (IBI), including clinical stability, absence of microbiologically documented infection, and decreasing biomarker levels. The trial uses a randomised, controlled, open-label design to compare an early-stop strategy with the current standard management.

The rationale for this approach is to determine whether antibiotic therapy can be safely shortened without compromising infection-related outcomes. Limiting unnecessary antibiotic exposure may reduce adverse drug events, improve patient comfort, minimise disruption of the microbiome, and support antimicrobial stewardship programmes. The study also incorporates biomarker measurements (CRP, PCT, IL-8) to explore their predictive value for IBI and to validate an IBI-risk prediction model for this population.

Participants will be monitored closely for signs of bacterial infection or clinical deterioration throughout the 28-day follow-up period. This design enables robust assessment of safety while reflecting real-world clinical decision-making and the potential benefits of personalised antibiotic duration in paediatric oncology care.

02

Conditions studied

  • Febrile Neutropenia (FN)
  • Pediatric Cancer
  • Hematologic Malignancies
  • Solid Tumors
  • Invasive Bacterial Infection

Keywords

  • Febrile Neutropenia
  • Pediatric Oncology
  • Hematologic Malignancies
  • Solid Tumors
  • Invasive Bacterial Infection
  • Antibiotic Discontinuation
  • Antibiotic Stewardship
  • Biomarkers (CRP, PCT, IL-8)
  • Early Stop Strategy
  • Randomized Clinical Trial
  • Non-Inferiority Trial
  • Neutropenia
03

In context

Febrile Neutropenia

151 studies on the registry are indexed under Febrile Neutropenia; 33 are open to participants now.

This study's planned enrollment of 136 is above the median of 120 across 90 interventional studies indexed under Febrile Neutropenia.

Browse Febrile Neutropenia studies →

Lead sponsor

Hospital Universitari Vall d'Hebron Research Institute is the lead sponsor of 268 studies on the registry; 61 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Up to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Male and female patients ≤18 years of age expected to develop prolonged neutropenia (>7 days), with:

    • Acute myeloblastic leukaemia at any phase of chemotherapy
    • Acute lymphoblastic leukaemia in induction, consolidation, or intensification phases
    • Biphenotypic leukaemia at any phase of chemotherapy
    • Lymphoblastic lymphoma in induction and consolidation phases
    • B-cell and anaplastic lymphoma receiving high-intensity chemotherapy
    • Solid tumours receiving high-intensity chemotherapy
    • Relapsed leukaemia at any phase of treatment
  2. Episode of febrile neutropenia (FN), defined as a single axillary temperature ≥38.0°C in a patient with an absolute neutrophil count (ANC) \<500 neutrophils/mm³, or expected to fall below this value within the next 48-72 hours.
  3. Antibiotic treatment initiated for the current FN episode (routine antimicrobial prophylaxis is allowed, as well as teicoplanin 3 days/week for patients with AML included in the CHIP-AML-2022 protocol and therefore in the Pro-teico study).
  4. Low risk of invasive bacterial infection (IBI) at the start of the FN episode. Patients must meet all of the following:

    • CRP \<9 mg/dL
    • PCT \<0.5 ng/mL
    • Absence of hypotension
  5. No microbiologically documented bacterial infection 48-72 hours after the FN episode.
  6. Good clinical evolution 48-72 hours after the FN episode, defined as:

    • Afebrile for >48 hours (axillary temperature \<38°C)
    • Haemodynamically stable
    • Stable paediatric early warning score (PEWS)
  7. CRP \<5 mg/dL, or CRP \<9 mg/dL and PCT \<0.5 ng/mL, with decreasing trend at the time of randomisation (values will be assessed on day 3 and day 5 after the FN episode).
  8. ANC \<500 neutrophils/mm³ at the time of randomisation.
  9. Signed informed consent from the patient and/or parent(s)/legal representative(s).
  10. Patient and/or parent(s)/legal representative(s) must have sufficient reading and writing skills to understand and provide consent to participate in the study.
  11. Patient and/or parent(s)/legal representative(s) must be considered reliable and capable of adhering to the protocol.

Exclusion criteria

Exclusion Criteria:

  1. Antibiotic treatment at the time of the FN episode different from that used prophylactically.
  2. Empirical antibiotic treatment different from that recommended in international guidelines.
  3. Patient with poor clinical evolution during the first 12 hours (hemodynamic instability, PICU admission, death).
  4. Active participation in the same study at the onset of the current FN episode.
  5. Active participation in another clinical trial that, in the investigators' opinion, may interfere with the assessment of the results.
  6. Any condition which, in the investigator's opinion, makes study participation unsuitable for the patient or could limit, prevent, or confound the assessments planned in the protocol.
  7. Female patients who are pregnant or breastfeeding
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
136 participants (estimated)

Study arms

  • Experimental
    Early Discontinuation of Antibiotics

    Participants assigned to this arm will have intravenous antibiotic therapy discontinued within 24 hours after randomization, provided they meet all clinical stability and low-risk criteria. Patients may be discharged if no other clinical reasons require hospitalization. Antibiotics may be reintroduced if fever recurs or if clinical deterioration suggests infection.

    Drug: Early Discontinuation of Antibiotics

  • Active comparator
    Standard Antibiotic Strategy

    Participants assigned to this arm will continue antibiotic therapy for at least 7 days and/or until signs of marrow recovery are present (ANC ≥100/mm³), according to each center's standard protocol. Hospital discharge will occur once clinical criteria permit.

    Drug: Standard Antibiotic Continuation Strategy

Interventions

  • DrugEarly Discontinuation of Antibiotics

    Participants assigned to this intervention will stop intravenous antibiotic therapy within 24 hours after randomization, provided they meet all required clinical stability and low-risk criteria at 48-72 hours (or day 5) after the febrile neutropenia episode. Patients may be discharged once clinically appropriate. Antibiotics may be restarted if fever recurs or clinical deterioration suggests infection.

    Also known as: Drug stop within 24 hours after randomization:Piperacillin-tazobactam, amikacin, meropenem, cefepime, ceftazidime, vancomycin, teicoplanin, ciprofloxacin, levofloxacine and metronidazole

  • DrugStandard Antibiotic Continuation Strategy

    Continuation of antibiotic therapy for at least 7 days and/or until marrow recovery (ANC ≥100/mm³) following standard institutional protocols. Therapy may be extended depending on clinical assessment.

    Also known as: Drug continuation for at least 7d and/or until marrow recovery:Piperacillin-tazobactam,amikacin,meropenem,cefepime, ceftazidime, vancomycin, teicoplanin, ciprofloxacin, levofloxacine and metronidazole

06

What researchers measure

Primary outcomes

  1. Composite rate of adverse outcomes attributable to invasive or clinically significant bacterial infection

    Composite endpoint including any of the following events: death, pediatric intensive care unit admission, sepsis or septic shock, microbiologically documented bacterial infection, or radiologically confirmed pneumonia. The proportion of participants experiencing at least one component of the composite endpoint will be compared between the early discontinuation arm and the standard continuation arm to assess non-inferiority in safety.

    Time frame: Day 0 (randomization) to Day 28

Secondary outcomes

  1. Number of days of antibiotic therapy

    Total duration of systemic antimicrobial therapy will be compared between the early-stop arm and the standard-therapy arm to evaluate reduction in antibiotic exposure.

    Time frame: From Day 0 to Day 28

  2. Incidence of antibiotic-related adverse events

    Number of participants experiencing adverse effects attributable to antimicrobial therapy, including drug toxicity or complications associated with prolonged antibiotic use.

    Time frame: Up to Day 28

  3. Predictive performance of C-reactive protein (CRP) for invasive bacterial infection

    Retrospective evaluation of CRP levels as a predictor of invasive bacterial infection in pediatric high-risk febrile neutropenia episodes.

    Time frame: Measured at episode onset, at 48-72 hours, and optionally on Day 5

  4. Predictive performance of procalcitonin (PCT) for invasive bacterial infection

    Retrospective evaluation of procalcitonin levels as a predictor of invasive bacterial infection in pediatric high-risk febrile neutropenia episodes.

    Time frame: Measured at episode onset, at 48-72 hours, and optionally on Day 5

  5. Predictive performance of interleukin-8 (IL-8) for invasive bacterial infection

    Retrospective evaluation of IL-8 levels as a predictor of invasive bacterial infection in pediatric high-risk febrile neutropenia episodes.

    Time frame: Measured at episode onset and at 48-72 hours

  6. Validation of an invasive bacterial infection (IBI) prediction model

    Evaluation of a predictive model combining clinical variables, biomarker measurements, and risk scores to classify pediatric high-risk febrile neutropenia episodes according to risk of invasive bacterial infection.

    Time frame: Day 0 to Day 28

07

Study locations

4 sites
  • Hospital Universitari Vall d'Hebron
    Barcelona, Barcelona 08035, Spain
  • Hospital Sant Joan de Déu
    Esplugues de Llobregat, Barcelona 08950, Spain
    • Silvia Simó Nebot, MD, PhD · Contact · silvia.simo@sjd.es · +34 932532100
    • Silvia Simó Nebot, MD, PhD · Principal investigator
  • Hospital Infantil Universitario Niño Jesús
    Madrid, Madrid 28009, Spain
  • Hospital Universitario La Paz
    Madrid, Madrid 28046, Spain
08

References and documents

Publications

  • Lucignano B, Cento V, Agosta M, Ambrogi F, Albitar-Nehme S, Mancinelli L, Mattana G, Onori M, Galaverna F, Di Chiara L, Fragasso T, Bianchi R, Tortora F, Auriti C, Dotta A, Cecchetti C, Perdichizzi S, Raponi M, Onetti Muda A, Nerini Molteni S, Villani A, Locatelli F, Perno CF, Bernaschi P. Effective Rapid Diagnosis of Bacterial and Fungal Bloodstream Infections by T2 Magnetic Resonance Technology in the Pediatric Population. J Clin Microbiol. 2022 Oct 19;60(10):e0029222. doi: 10.1128/jcm.00292-22. Epub 2022 Sep 7. PubMed 36069557 ↗
  • Clancy CJ, Nguyen MH. T2 magnetic resonance for the diagnosis of bloodstream infections: charting a path forward. J Antimicrob Chemother. 2018 Mar 1;73(suppl_4):iv2-iv5. doi: 10.1093/jac/dky050. PubMed 29608754 ↗
  • Secmeer G, Devrim I, Kara A, Ceyhan M, Cengiz B, Kutluk T, Buyukpamukcu M, Yetgin S, Tuncer M, Uludag AK, Tezer H, Yildirim I. Role of procalcitonin and CRP in differentiating a stable from a deteriorating clinical course in pediatric febrile neutropenia. J Pediatr Hematol Oncol. 2007 Feb;29(2):107-11. doi: 10.1097/MPH.0b013e3180320b5b. PubMed 17279007 ↗
  • Hemming V, Jakes AD, Shenton G, Phillips B. Prospective cohort study of procalcitonin levels in children with cancer presenting with febrile neutropenia. BMC Pediatr. 2017 Jan 5;17(1):2. doi: 10.1186/s12887-016-0766-8. PubMed 28056911 ↗
  • Santolaya ME, Alvarez AM, Aviles CL, Becker A, King A, Mosso C, O'Ryan M, Paya E, Salgado C, Silva P, Topelberg S, Tordecilla J, Varas M, Villarroel M, Viviani T, Zubieta M. Predictors of severe sepsis not clinically apparent during the first twenty-four hours of hospitalization in children with cancer, neutropenia, and fever: a prospective, multicenter trial. Pediatr Infect Dis J. 2008 Jun;27(6):538-43. doi: 10.1097/INF.0b013e3181673c3c. PubMed 18458649 ↗
  • Cost CR, Stegner MM, Leonard D, Leavey P. IL-8 predicts pediatric oncology patients with febrile neutropenia at low risk for bacteremia. J Pediatr Hematol Oncol. 2013 Apr;35(3):206-11. doi: 10.1097/MPH.0b013e318281e653. PubMed 23425997 ↗
  • Ammann RA, Bodmer N, Hirt A, Niggli FK, Nadal D, Simon A, Ozsahin H, Kontny U, Kuhne T, Popovic MB, Luthy AR, Aebi C. Predicting adverse events in children with fever and chemotherapy-induced neutropenia: the prospective multicenter SPOG 2003 FN study. J Clin Oncol. 2010 Apr 20;28(12):2008-14. doi: 10.1200/JCO.2009.25.8988. Epub 2010 Mar 15. PubMed 20231680 ↗
  • Ammann RA, Hirt A, Luthy AR, Aebi C. Identification of children presenting with fever in chemotherapy-induced neutropenia at low risk for severe bacterial infection. Med Pediatr Oncol. 2003 Nov;41(5):436-43. doi: 10.1002/mpo.10320. PubMed 14515382 ↗
  • Santolaya ME, Alvarez AM, Becker A, Cofre J, Enriquez N, O'Ryan M, Paya E, Pilorget J, Salgado C, Tordecilla J, Varas M, Villarroel M, Viviani T, Zubieta M. Prospective, multicenter evaluation of risk factors associated with invasive bacterial infection in children with cancer, neutropenia, and fever. J Clin Oncol. 2001 Jul 15;19(14):3415-21. doi: 10.1200/JCO.2001.19.14.3415. PubMed 11454890 ↗
  • Rondinelli PI, Ribeiro Kde C, de Camargo B. A proposed score for predicting severe infection complications in children with chemotherapy-induced febrile neutropenia. J Pediatr Hematol Oncol. 2006 Oct;28(10):665-70. doi: 10.1097/01.mph.0000212996.94929.0b. PubMed 17023827 ↗
  • Alexander SW, Wade KC, Hibberd PL, Parsons SK. Evaluation of risk prediction criteria for episodes of febrile neutropenia in children with cancer. J Pediatr Hematol Oncol. 2002 Jan;24(1):38-42. doi: 10.1097/00043426-200201000-00011. PubMed 11902738 ↗
  • Rackoff WR, Gonin R, Robinson C, Kreissman SG, Breitfeld PB. Predicting the risk of bacteremia in childen with fever and neutropenia. J Clin Oncol. 1996 Mar;14(3):919-24. doi: 10.1200/JCO.1996.14.3.919. PubMed 8622040 ↗
  • Santolaya ME, Alvarez AM, Acuna M, Aviles CL, Salgado C, Tordecilla J, Varas M, Venegas M, Villarroel M, Zubieta M, Toso A, Bataszew A, Farfan MJ, de la Maza V, Vergara A, Valenzuela R, Torres JP. Efficacy and safety of withholding antimicrobial treatment in children with cancer, fever and neutropenia, with a demonstrated viral respiratory infection: a randomized clinical trial. Clin Microbiol Infect. 2017 Mar;23(3):173-178. doi: 10.1016/j.cmi.2016.11.001. Epub 2016 Nov 14. PubMed 27856269 ↗
  • Aguilar-Guisado M, Espigado I, Martin-Pena A, Gudiol C, Royo-Cebrecos C, Falantes J, Vazquez-Lopez L, Montero MI, Rosso-Fernandez C, de la Luz Martino M, Parody R, Gonzalez-Campos J, Garzon-Lopez S, Calderon-Cabrera C, Barba P, Rodriguez N, Rovira M, Montero-Mateos E, Carratala J, Perez-Simon JA, Cisneros JM. Optimisation of empirical antimicrobial therapy in patients with haematological malignancies and febrile neutropenia (How Long study): an open-label, randomised, controlled phase 4 trial. Lancet Haematol. 2017 Dec;4(12):e573-e583. doi: 10.1016/S2352-3026(17)30211-9. Epub 2017 Nov 15. PubMed 29153975 ↗
  • Martinez Campos L, Perez-Albert P, Ferres Ramis L, Rincon-Lopez EM, Mendoza-Palomar N, Soler-Palacin P, Aguilera-Alonso D; en representacion del Grupo de trabajo de Infecciones Bacterianas de la Sociedad Espanola de Infectologia Pediatrica (SEIP); Grupo de Soporte de la Sociedad Espanola de Hematologia y Oncologia Pediatrica (SEHOP); Grupo de trabajo de Infeccion Fungica Invasiva de la Sociedad Espanola de Infectologia Pediatrica (SEIP). Consensus document on the management of febrile neutropenia in paediatric haematology and oncology patients of the Spanish Society of Pediatric Infectious Diseases (SEIP) and the Spanish Society of Pediatric Hematology and Oncology (SEHOP). An Pediatr (Engl Ed). 2023 Jun;98(6):446-459. doi: 10.1016/j.anpede.2023.03.010. Epub 2023 May 31. PubMed 37268527 ↗
  • Santolaya ME, Contardo V, Torres JP, Lopez-Medina E, Rosanova MT, Alvarez AM, Gutierrez V, Claverie X, Rabello M, Zubieta M, Alvarez-Olmos MI, Camacho G, Perez P, Marino C, Garces C, Coronell W, Lopez P, Gomez S, Epelbaum C. [Management of episodes of febrile neutropenia in children with cancer. Consensus of the Latin American Society of Pediatric Infectious Diseases 2021]. Rev Chilena Infectol. 2021 Dec;38(6):857-909. doi: 10.4067/s0716-10182021000600857. Spanish. PubMed 35506861 ↗
  • Mattei D, Baretta V, Mazzariol A, Maccacaro L, Balter R, Zaccaron A, Bonetti E, Chinello M, Vitale V, Caddeo G, Esposto MP, Pezzella V, Gibellini D, Tridello G, Cesaro S. Characteristics and Outcomes of Bloodstream Infections in a Tertiary-Care Pediatric Hematology-Oncology Unit: A 10-Year Study. J Clin Med. 2022 Feb 8;11(3):880. doi: 10.3390/jcm11030880. PubMed 35160334 ↗
  • Lehrnbecher T, Averbuch D, Castagnola E, Cesaro S, Ammann RA, Garcia-Vidal C, Kanerva J, Lanternier F, Mesini A, Mikulska M, Pana D, Ritz N, Slavin M, Styczynski J, Warris A, Groll AH; 8th European Conference on Infections in Leukaemia. 8th European Conference on Infections in Leukaemia: 2020 guidelines for the use of antibiotics in paediatric patients with cancer or post-haematopoietic cell transplantation. Lancet Oncol. 2021 Jun;22(6):e270-e280. doi: 10.1016/S1470-2045(20)30725-7. Epub 2021 Mar 31. PubMed 33811814 ↗
  • Lehrnbecher T, Robinson PD, Ammann RA, Fisher B, Patel P, Phillips R, Beauchemin MP, Carlesse F, Castagnola E, Davis BL, Elgarten CW, Groll AH, Haeusler GM, Koenig C, Santolaya ME, Tissing WJE, Wolf J, Alexander S, Hu H, Dupuis LL, Sung L. Guideline for the Management of Fever and Neutropenia in Pediatric Patients With Cancer and Hematopoietic Cell Transplantation Recipients: 2023 Update. J Clin Oncol. 2023 Mar 20;41(9):1774-1785. doi: 10.1200/JCO.22.02224. Epub 2023 Jan 23. PubMed 36689694 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07590648
Lead sponsor
Hospital Universitari Vall d'Hebron Research Institute
Responsible party
Sponsor
First posted
May 15, 2026
Start date
Jun 1, 2026 (estimated)
Primary completion
Jul 1, 2028 (estimated)
Completion
Jul 1, 2028 (estimated)
Last update
May 15, 2026

Study contacts

Natalia A Mendoza Palomar, MD
Contact
nataliaana.mendoza@vallhebron.cat
+34 934893000 ext. 3077

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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