Tretinoin and Arsenic Trioxide With or Without Gemtuzumab Ozogamicin in Treating Patients With Previously Untreated Acute Promyelocytic Leukemia

May 18, 2026 updated by: M.D. Anderson Cancer Center

Phase II Study of Treatment of Acute Promyelocytic Leukemia (APL) With ATRA, Arsenic Trioxide and Gemtuzumab Ozogamicin (GO)

This phase II trial studies how well tretinoin and arsenic trioxide with or without gemtuzumab ozogamicin works in treating patients with previously untreated acute promyelocytic leukemia. Drugs used in chemotherapy, such as tretinoin and arsenic trioxide, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotoxins, such as gemtuzumab ozogamicin, may find certain cancer cells and kill them without harming normal cells. Giving tretinoin and arsenic trioxide together with gemtuzumab ozogamicin may kill more cancer cells.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

PRIMARY OBJECTIVES:

I. Assess whether a combination of all-trans retinoic acid (ATRA [tretinoin]), and arsenic trioxide (ATO) can produce long-term event-free survival in patients with low-risk untreated acute promyelocytic leukemia (APL).

II. Assess whether administration of gemtuzumab ozogamicin (GO) at the diagnosis in patients with high-risk APL (white blood cell [WBC] > 10,000) and if the WBC rises to > 10,000 after start of treatment (in patients with low-risk disease) will improve complete response (CR) rate without increasing toxicity in high-risk untreated APL.

OUTLINE:

INDUCTION: Patients receive tretinoin orally (PO) twice daily (BID), arsenic trioxide intravenously (IV) over 1-2 hours daily, and gemtuzumab ozogamicin IV over 2 hours once at weeks 1-4.

CONSOLIDATION: Patients achieving CR receive arsenic trioxide IV 5 days per week during weeks 1-4, 9-12, 17-20, and 25-28 and tretinoin PO BID for 2 weeks on and 2 weeks off. Treatment repeats every 8 weeks for up to 4 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 6-12 months.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
151

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Texas
      • Houston, Texas, United States, 77030
        • Recruiting
        • M D Anderson Cancer Center
        • Contact:
          • Farhad Ravandi-Kashani
          • Phone Number: 713-745-0394
        • Principal Investigator:
          • Farhad Ravandi-Kashani
      • Houston, Texas, United States, 77094
        • Recruiting
        • MD Anderson Regional Care Center-Katy
        • Contact:
          • Farhad Ravandi-Kashani
          • Phone Number: 713-745-0394
        • Principal Investigator:
          • Farhad Ravandi-Kashani
      • Nassau Bay, Texas, United States, 77058
        • Recruiting
        • MD Anderson Regional Care Center-Bay Area
        • Contact:
          • Farhad Ravandi-Kashani
          • Phone Number: 713-745-0394
        • Principal Investigator:
          • Farhad Ravandi-Kashani
      • Sugar Land, Texas, United States, 77478
        • Recruiting
        • MD Anderson Regional Care Center-Sugar Land
        • Contact:
          • Farhad Ravandi-Kashani
          • Phone Number: 713-745-0394
        • Principal Investigator:
          • Farhad Ravandi-Kashani
      • The Woodlands, Texas, United States, 77384
        • Recruiting
        • MD Anderson Regional Care Center-The Woodlands
        • Contact:
          • Farhad Ravandi-Kashani
          • Phone Number: 713-745-0394
        • Principal Investigator:
          • Farhad Ravandi-Kashani

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

6 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • A diagnosis of APL based on the presence of the PML-RAR-alpha fusion gene by cytogenetics, polymerase chain reaction (PCR), or POD test
  • Ability to understand and the willingness to sign a written informed consent document indicating that they are aware of the investigational nature of the study
  • Patients in whom therapy for APL was initiated on an emergent basis are eligible (patients may have already started treatment with ATRA, ATO, and/or one dose of idarubicin due to the urgency to start therapy early)
  • Women of child-bearing potential must have a negative serum pregnancy test at screening; in addition to having a negative pregnancy test confirmed at screening, all female participants of childbearing potential must have a negative pregnancy test confirmed within 48 hours prior to dosing with the study drug
  • All sexually active subjects (males and females of child-bearing potential) agree to use 2 effective methods of contraception for the duration of the study

Exclusion Criteria:

  • Fridericia corrected QT (QTcF) interval on the electrocardiogram (EKG) greater than 480 milliseconds
  • Patients with creatinine > 2.5 times upper limit of normal unless felt to be related the underlying leukemia by the treating physician or hemolysis or Gilbert's disease
  • Patients with total bilirubin >= 2.0 times upper limit of normal unless felt to be related the underlying leukemia by the treating physician or hemolysis or Gilbert's disease
  • Patients with alanine aminotransferase (ALT)/aspartate aminotransferase (AST) > 3 times upper limit of normal unless felt to be related the underlying leukemia by the treating physician or hemolysis or Gilbert's disease

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

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment (tretinoin, arsenic trioxide, gemtuzumab ozogamicin)

INDUCTION: Patients receive tretinoin PO BID, arsenic trioxide IV over 1-2 hours daily, and gemtuzumab ozogamicin IV over 2 hours once at weeks 1-4.

CONSOLIDATION: Patients achieving CR receive arsenic trioxide IV 5 days per week during weeks 1-4, 9-12, 17-20, and 25-28 and tretinoin PO BID for 2 weeks on and 2 weeks off. Treatment repeats every 8 weeks for up to 4 courses in the absence of disease progression or unacceptable toxicity.
Other: Laboratory Biomarker Analysis
Correlative studies
Drug: Gemtuzumab Ozogamicin
Given IV
Other Names:
  • Mylotarg
  • Calicheamicin-Conjugated Humanized Anti-CD33 Monoclonal Antibody
  • CDP-771
  • CMA-676
  • gemtuzumab
  • hP67.6-Calicheamicin
  • WAY-CMA-676
Drug: Arsenic Trioxide
Given IV
Other Names:
  • Arsenic (III) Oxide
  • Arsenic Sesquioxide
  • Arsenous Acid Anhydride
  • Trisenox
  • Arsenous Acid
  • Arsenous Oxide
  • White Arsenic
Drug: Tretinoin
Given PO
Other Names:
  • Vesanoid
  • ATRA
  • Renova
  • Retin-A
  • Airol
  • Avita
  • Stieva-A
  • 2,4,6,8-Nonatetraenoic acid, 3, 7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-, (all-E)-
  • Aberel
  • Aknoten
  • all trans-Retinoic acid
  • All-trans Retinoic Acid
  • All-trans Vitamin A Acid
  • all-trans-Retinoic acid
  • all-trans-Vitamin A acid
  • beta-Retinoic Acid
  • Cordes Vas
  • Dermairol
  • Epi-Aberel
  • Eudyna
  • Retin-A MICRO
  • Retin-A-Micro
  • Retisol-A
  • Ro 5488
  • Stieva-A Forte
  • Trans Retinoic Acid
  • Trans Vitamin A Acid
  • Tretinoinum
  • Vitamin A acid, all-trans-
  • Vitinoin
  • retinoic acid
  • trans-Retinoic acid
  • vitamin A acid

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Event free survival
Time Frame: The time from the start of treatment to first documentation of disease relapse or death, assessed up to 2 years
Monitored using a Bayesian time-to-event model.
The time from the start of treatment to first documentation of disease relapse or death, assessed up to 2 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
M.D. Anderson Cancer Center

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Farhad Ravandi-Kashani, 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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 5, 2011

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 18, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 18, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 2, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 2, 2011

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 4, 2011

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 20, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2010-0981 (Other Identifier: M D Anderson Cancer Center)
  • NCI-2011-02767 (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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