Inotuzumab Ozogamicin in Treating Patients With B-cell Acute Lymphocytic Leukemia With Positive Minimal Residual Disease

February 13, 2026 updated by: M.D. Anderson Cancer Center

Phase II Study of Inotuzumab Ozogamicin in Patients With B-Cell Lineage Acute Lymphocytic Leukemia With Positive Minimal Residual Disease

This phase II trial studies how well inotuzumab ozogamicin works in treating patients with B-cell acute lymphocytic leukemia with positive minimal residual disease. Inotuzumab ozogamicin is a monoclonal antibody called inotuzumab linked to a toxic agent called ozogamicin. Inotuzumab ozogamicin attaches to B cell-specific CD22 cancer cells in a targeted way and kills them.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

PRIMARY OBJECTIVE:

I. To evaluate the clinical efficacy of inotuzumab ozogamicin in patients B-cell acute lymphoblastic leukemia (ALL) in complete morphologic remission with positive minimal residual disease (MRD) in terms of relapse-free survival (RFS).

SECONDARY OBJECTIVE:

I. To evaluate other efficacy endpoints such as overall survival and MRD negativity rate by flow cytometry and/or polymerase chain reaction (PCR) overall and after the first cycle, as well as safety of inotuzumab ozogamicin in this setting.

OUTLINE:

Patients receive inotuzumab ozogamicin intravenously (IV) over 1 hour on days 1 and 8. Treatment repeats every 21-28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 day and then periodically every 6 months.

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Texas
      • Houston, Texas, United States, 77030
        • M D Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients with B-lineage ALL in hematologic complete remission (CR) with molecular failure (ie, had never achieved an MRD-negativity status before inotuzumab ozogamicin) or had a molecular relapse (ie, became MRD positive after having been MRD negative) starting at any time point after 3 months of frontline therapy. Molecular disease or minimal residual disease is defined by any level of measurable residual disease identified by multicolor flow cytometry, PCR and/or next-generation sequencing (NGS).
  • Patients with B-lineage ALL in at least marrow CR in salvage 1 and beyond with MRD failure at any time point after 1 month of salvage therapy are allowed, including patients who received prior allogeneic stem cell transplantation.
  • Patients with Ph+ ALL can be enrolled in CR1 or CR2 and beyond. A TKI will be added at the discretion of the treating physician. MRD for these patients will be defined by either 1.) a ratio of BCR-ABL1 to ABL1 by PCR of ≥ 0.01% according to the International Scale for patients with p210 transcript or a ratio of BCR-ABL1 to ABL1 by PCR of ≥ 0.01% for patients with non-p210 transcripts, or 2.) detectable MRD at any level of measurable residual disease identified by multicolor flow cytometry and/or by NGS.
  • Performance status of 0, 1, or 2
  • Creatinine clearance >= 15 ml/min
  • Bilirubin < 1.5 X upper limit of normal (ULN)
  • Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 3 X ULN
  • No active or co-existing malignancy with life expectancy less than 12 months

Exclusion Criteria:

  • Pregnant or nursing women
  • Known to be human immunodeficiency virus positive (HIV+)
  • Active and uncontrolled disease/infection as judged by the treating physician
  • Unable or unwilling to sign the consent form
  • Active central nervous system (CNS) or extramedullary disease
  • Monoclonal antibodies therapy within 2 weeks before study entry
  • Radiotherapy or cancer chemotherapy (except for intrathecal prophylaxis and/or low-dose maintenance therapy such as vinca alkaloids, mercaptopurine, methotrexate, steroids) or any investigational drug within 2 weeks before study entry

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treatment (inotuzumab ozogamicin)
Patients receive inotuzumab ozogamicin IV over 1 hour on days 1 and 8. Treatment repeats every 21-28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity.
Biological: Inotuzumab Ozogamicin
Given IV
Other Names:
  • Besponsa
  • CMC-544
  • Way 207294
  • WAY-207294

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Relapse-free survival (RFS)
Time Frame: Up to 4 years
Up to 4 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall survival
Time Frame: Up to 4 years
Up to 4 years
Incidence of adverse events
Time Frame: Up to 4 years
Will continuously monitor treatment-related toxicities using the Bayesian approach of Thall, Simon, Estey. For the purpose of toxicity monitoring, toxicities are defined as any treatment-related grade 3 or 4 non-hematologic adverse events occurring any time during the trial.
Up to 4 years
Minimal residual disease (MRD) negativity rate
Time Frame: Up to 4 years
Up to 4 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

M.D. Anderson Cancer Center

Collaborators

National Cancer Institute (NCI)

Investigators

  • Principal Investigator: Elias Jabbour, M.D. Anderson Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 15, 2018

Primary Completion (Estimated)

February 28, 2027

Study Completion (Estimated)

February 28, 2027

Study Registration Dates

First Submitted

February 15, 2018

First Submitted That Met QC Criteria

February 15, 2018

First Posted (Actual)

February 22, 2018

Study Record Updates

Last Update Posted (Actual)

February 17, 2026

Last Update Submitted That Met QC Criteria

February 13, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2015-0921 (Other Identifier: M D Anderson Cancer Center)
  • NCI-2018-00936 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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