A Study to Learn More About the Study Medicine Called Inotuzumab Ozogamicin (InO) in Children (1 to <18 Years) With First Relapse ALL

NCT05748171 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-05-14

No results posted yet for this study

Summary

This prospective, randomized, multicenter, open-label Phase 2 study is designed to evaluate the superiority of InO monotherapy vs ALLR3 after 1 cycle of induction treatment in paediatric participants (between 1 and \<18 years) with High Risk (HR) or very high risk (VHR) first bone marrow relapse CD22-positive BCP ALL, and to evaluate the safety and tolerability, PK and long-term efficacy. Treatment with study intervention will end after induction therapy; follow-up will continue for up to 5 years from randomization.

Conditions

Interventions

DRUG

Inotuzumab ozogamicin

Inotuzumab ozogamicin (BESPONSA™) is a CD22 targeted antibody drug conjugate (ADC) approved in several countries for the treatment of adults with relapsed or refractory B cell precursor acute lymphoblastic leukemia (ALL). The approved starting dose is 1.8mg/m2/cycle.

DRUG

ALLR3

The ALLR3 chemotherapy regimen (vincristine, mitoxantrone, dexamethasone, and PEG-asparaginase \[or erwinia-asparaginase in the event of an allergic reaction to PEG-asparaginase\]) has been adopted by pediatric oncology groups as treatment for pediatric relapsed/refractory (R/R) acute lymphoblastic leukemia (ALL)

Sponsors & Collaborators

Principal Investigators

  • Pfizer CT.gov Call Center · Pfizer

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
1 Year
Max Age
17 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-05-17
Primary Completion
2033-10-31
Completion
2036-11-04

Countries

  • Austria
  • Belgium
  • Czechia
  • Denmark
  • Finland
  • France
  • Germany
  • Hungary
  • India
  • Israel
  • Italy
  • Netherlands
  • Norway
  • Poland
  • Slovakia
  • Spain
  • Sweden
  • Switzerland

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05748171 on ClinicalTrials.gov