Early Discontinuation of Antibiotics in Paediatric High-risk Febrile Neutropenia
E-STOP2
Phase IV, Randomized, Open Label, Parallel Groups Clinical Trial for Evaluating the Early Stop of Antibiotic Treatment in High-risk Febrile Neutropenic Oncohaematological Paediatric Patients (e-STOP 2)
1 other identifier
interventional
136
1 country
4
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4
Started Jun 2026
Typical duration for phase_4
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 16, 2026
CompletedFirst Posted
Study publicly available on registry
May 15, 2026
CompletedStudy Start
First participant enrolled
June 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2028
Study Completion
Last participant's last visit for all outcomes
July 1, 2028
May 15, 2026
May 1, 2026
2.1 years
February 16, 2026
May 13, 2026
Conditions
Keywords
Outcome Measures
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.
Day 0 (randomization) to Day 28
Secondary Outcomes (6)
Number of days of antibiotic therapy
From Day 0 to Day 28
Incidence of antibiotic-related adverse events
Up to Day 28
Predictive performance of C-reactive protein (CRP) for invasive bacterial infection
Measured at episode onset, at 48-72 hours, and optionally on Day 5
Predictive performance of procalcitonin (PCT) for invasive bacterial infection
Measured at episode onset, at 48-72 hours, and optionally on Day 5
Predictive performance of interleukin-8 (IL-8) for invasive bacterial infection
Measured at episode onset and at 48-72 hours
- +1 more secondary outcomes
Study Arms (2)
Early Discontinuation of Antibiotics
EXPERIMENTALParticipants 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.
Standard Antibiotic Strategy
ACTIVE COMPARATORParticipants 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.
Interventions
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.
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.
Eligibility Criteria
You may qualify if:
- 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
- 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.
- 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).
- 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
- No microbiologically documented bacterial infection 48-72 hours after the FN episode.
- +9 more criteria
You may not qualify if:
- Antibiotic treatment at the time of the FN episode different from that used prophylactically.
- Empirical antibiotic treatment different from that recommended in international guidelines.
- Patient with poor clinical evolution during the first 12 hours (hemodynamic instability, PICU admission, death).
- Active participation in the same study at the onset of the current FN episode.
- Active participation in another clinical trial that, in the investigators' opinion, may interfere with the assessment of the results.
- 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.
- Female patients who are pregnant or breastfeeding
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
Hospital Universitari Vall d'Hebron
Barcelona, Barcelona, 08035, Spain
Hospital Sant Joan de Déu
Esplugues de Llobregat, Barcelona, 08950, Spain
Hospital Infantil Universitario Niño Jesús
Madrid, Madrid, 28009, Spain
Hospital Universitario La Paz
Madrid, Madrid, 28046, Spain
Related Publications (19)
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PMID: 36069557BACKGROUNDClancy 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.
PMID: 29608754BACKGROUNDSecmeer 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.
PMID: 17279007BACKGROUNDHemming 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.
PMID: 28056911BACKGROUNDSantolaya 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.
PMID: 18458649BACKGROUNDCost 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.
PMID: 23425997BACKGROUNDAmmann 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.
PMID: 20231680BACKGROUNDAmmann 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.
PMID: 14515382BACKGROUNDSantolaya 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.
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PMID: 17023827BACKGROUNDAlexander 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.
PMID: 11902738BACKGROUNDRackoff 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.
PMID: 8622040BACKGROUNDSantolaya 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.
PMID: 27856269BACKGROUNDAguilar-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.
PMID: 29153975BACKGROUNDMartinez 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.
PMID: 37268527BACKGROUNDSantolaya 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.
PMID: 35506861BACKGROUNDMattei 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.
PMID: 35160334BACKGROUNDLehrnbecher 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.
PMID: 33811814BACKGROUNDLehrnbecher 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.
PMID: 36689694BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 16, 2026
First Posted
May 15, 2026
Study Start (Estimated)
June 1, 2026
Primary Completion (Estimated)
July 1, 2028
Study Completion (Estimated)
July 1, 2028
Last Updated
May 15, 2026
Record last verified: 2026-05