NCT07320534

Brief Summary

The goal of this clinical trial is To evaluate the benefit of levofloxacin prophylaxis in prolonging the median time to first febrile neutropenia in pediatric ALL patients during induction phase. It will also learn about the safety of levofloxacin during induction treatment. The main questions it aims to answer are:

  • Does levofloxacin prophylaxis increase the median time to the first febrile neutropenia episode compared to placebo?
  • What are the rates of fever, severe infection, organ-related bacterial infection, and mortality in children receiving levofloxacin compared to placebo? Researchers will compare oral levofloxacin to a placebo (a look-alike substance with no active drug) to see if levofloxacin is effective in preventing infection during induction chemotherapy. Participants will:
  • Be children aged 1 to 18 years with ALL undergoing induction chemotherapy.
  • Be randomly assigned to receive either levofloxacin prophylaxis or placebo during the induction phase.
  • Have regular checkups, physical exams, and laboratory tests during induction.
  • Be monitored for fever, febrile neutropenia, severe infections, bacterial infections, and mortality.
  • Stop prophylaxis once the first febrile neutropenia occurs or induction therapy is completed.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
124

participants targeted

Target at P50-P75 for phase_4

Timeline
4mo left

Started Jan 2026

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress52%
Jan 2026Aug 2026

First Submitted

Initial submission to the registry

September 24, 2025

Completed
3 months until next milestone

Study Start

First participant enrolled

January 1, 2026

Completed
5 days until next milestone

First Posted

Study publicly available on registry

January 6, 2026

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2026

Last Updated

January 8, 2026

Status Verified

January 1, 2026

Enrollment Period

7 months

First QC Date

September 24, 2025

Last Update Submit

January 6, 2026

Conditions

Keywords

Neutropenic FeverAcute Lymphoblastic LeukemiaLevofloxacin

Outcome Measures

Primary Outcomes (2)

  • Median time to first febrile neutropenia

    The number of participants with first febrile neutropenia and the median day of occurrence.

    First febrile neutropenia up to day 63

  • Clinical Outcome

    The number of participants who experienced fever, first febrile neutropenia, severe infection, organ-related infection, microbiologically confirmed infection, infection-related mortality

    First febrile neutropenia up to day 63

Secondary Outcomes (2)

  • Caused of mortality

    up to 12 weeks

  • Patients with positive cultures

    up to 12 weeks

Other Outcomes (1)

  • Baseline characteristics of the study groups

    Day 1

Study Arms (2)

Group A: Levofloxacin

EXPERIMENTAL

Receiving oral levofloxacin as infection prophylaxis during the induction phase, with the following dosage: * Age \< 5 years: 10 mg/kg PO every 12 hours (maximum 250 mg/dose) * Age ≥ 5 years: 10 mg/kg PO once daily (maximum 500 mg/day)

Drug: Levofloxacin

Group B: Placebo

PLACEBO COMPARATOR

Receiving oral placebo at the same dosage as the treatment group.

Other: Placebo

Interventions

younger than 5 years received levofloxacin 10 mg/kg by mouth every 12 hours and patients 5 years and older received 10 mg/kg by mouth once daily (maximum 500 mg/dose)

Group A: Levofloxacin
PlaceboOTHER

Receiving oral placebo at the same dosage as the treatment group.

Group B: Placebo

Eligibility Criteria

Age6 Months - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • All patients aged 1 to 18 years diagnosed with acute lymphoblastic leukemia (ALL).
  • Receiving induction phase 1A chemotherapy for ALL using the Indonesian National Childhood ALL Pilot Protocol 2024 Standard Risk; induction phases 1A and 1B chemotherapy using the Indonesian National Childhood ALL Pilot Protocol 2024 High Risk; or induction chemotherapy using the ACT4ALL Protocol 2025 at Dr. Sardjito Hospital.
  • No history of allergy to levofloxacin.
  • Parents/guardians provide written informed consent.

You may not qualify if:

  • Death before initiation of chemotherapy.
  • Patients with clinically or microbiologically confirmed infection within 72 hours prior to induction chemotherapy who require antibiotics for more than 5 days (to avoid antibiotic therapy as a confounding factor for antibiotic prophylaxis).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

RSUP dr Sardjito

Sleman, DI Yogyakarta, Indonesia

Location

Related Publications (2)

  • Alexander S, Fisher BT, Gaur AH, Dvorak CC, Villa Luna D, Dang H, Chen L, Green M, Nieder ML, Fisher B, Bailey LC, Wiernikowski J, Sung L; Children's Oncology Group. Effect of Levofloxacin Prophylaxis on Bacteremia in Children With Acute Leukemia or Undergoing Hematopoietic Stem Cell Transplantation: A Randomized Clinical Trial. JAMA. 2018 Sep 11;320(10):995-1004. doi: 10.1001/jama.2018.12512.

  • Patel B, Noda A, Godbout E, Stevens M, Noda C. Levofloxacin for Antibacterial Prophylaxis in Pediatric Patients With Acute Myeloid Leukemia or Undergoing Hematopoietic Stem Cell Transplantation. J Pediatr Pharmacol Ther. 2020;25(7):629-635. doi: 10.5863/1551-6776-25.7.629.

MeSH Terms

Conditions

Febrile NeutropeniaPrecursor Cell Lymphoblastic Leukemia-Lymphoma

Interventions

Levofloxacin

Condition Hierarchy (Ancestors)

NeutropeniaAgranulocytosisLeukopeniaCytopeniaHematologic DiseasesHemic and Lymphatic DiseasesLeukocyte DisordersLeukemia, LymphoidLeukemiaNeoplasms by Histologic TypeNeoplasmsLymphoproliferative DisordersLymphatic DiseasesImmunoproliferative DisordersImmune System Diseases

Intervention Hierarchy (Ancestors)

OfloxacinFluoroquinolones4-QuinolonesQuinolonesQuinolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Idha Yulandari, M.D. Pediatric

    Gadjah Mada University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

dr. Regina Amanda Putri, M.D

CONTACT

dr. Idha Yulandari, Sp.A, Fellow

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 24, 2025

First Posted

January 6, 2026

Study Start

January 1, 2026

Primary Completion (Estimated)

July 31, 2026

Study Completion (Estimated)

August 31, 2026

Last Updated

January 8, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will share

Inform Consent Form

Shared Documents
ICF
Time Frame
07 October 2025 for 1,5 years
Access Criteria
No data will be shared publicly. Data access will only be provided to qualified researchers upon justified request and with ethics approval.
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