Phenylbutyrate and Tretinoin in Treating Patients With Hematologic Cancer

A Phase I, Dose-Finding Trial of Sodium Phenylbutrate (NSC 657802) in Combination With All Trans-retinoic Acid (ATRA, NSC 122758) in Patients With Myelodysplastic Syndromes (MDS) and Acute Myeloid Leukemia (AML)

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Tretinoin may help hematologic cancer cells develop into normal white blood cells.

PURPOSE: Phase I trial to study the effectiveness of combining phenylbutyrate and tretinoin in treating patients who have hematologic cancer.

Study Overview

Detailed Description

OBJECTIVES:

  • Determine the safety and toxicity of phenylbutyrate and tretinoin in patients with myelodysplastic syndromes, chronic myelomonocytic leukemia, or acute myeloid leukemia.
  • Determine the pharmacokinetic interaction of this regimen in these patients.
  • Determine any potential therapeutic activity of this regimen in these patients.

OUTLINE: This is a dose escalation study of tretinoin.

Patients receive phenylbutyrate IV continuously on days 1-7 of weeks 1, 5, 7, 9, 11, 13, 15, 17, and 19. Patients also receive oral tretinoin three times daily on days 1-7 of weeks 3, 5, 7, 9, 11, 13, 15, 17, and 19. Treatment continues in the absence of disease progression or unacceptable toxicity.

Cohorts of 3-6 patients receive escalating doses of tretinoin until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 6 patients experience dose limiting toxicities.

An additional cohort of 6 patients is accrued at the MTD. These patients receive phenylbutyrate IV continuously on days 1-3 of weeks 1 and 3-18. These patients also receive oral tretinoin three times daily on days 1-3 of weeks 2-18. Treatment continues in the absence of disease progression or unacceptable toxicity.

Patients are followed every 3 months.

PROJECTED ACCRUAL: A total of 3-24 patients will be accrued for this study within 18 months.

Study Type

Interventional

Phase

  • Phase 1

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

    • Maryland
      • Baltimore, Maryland, United States, 21231-2410
        • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

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 to 120 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

DISEASE CHARACTERISTICS:

  • Histologically or cytologically confirmed myelodysplastic syndrome (MDS)

    • Refractory anemia
    • Primary refractory leukopenia or thrombocytopenia with morphologic features of MDS
    • Refractory anemia with excess blasts (RAEB)
    • Refractory anemia with ringed sideroblasts
    • RAEB in transformation
    • Must have excess blasts or be hematopoietically compromised, defined as one of the following:

      • RBC transfusion dependent
      • Granulocyte count less than 1,000/mm^3
      • Platelet count less than 50,000/mm^3 OR
  • Diagnosis of chronic myelomonocytic leukemia

    • Hematopoietically compromised (as defined above) OR
    • Excess blasts OR
    • Evaluable disease related symptomatology (organomegaly or leukemia cutis) OR
  • Diagnosis of acute myeloid leukemia

    • WBC less than 20,000/mm^3 and stable for at least 2 weeks
    • Unlikely to require cytotoxic therapy during study
  • No CNS or pulmonary leukostasis or CNS leukemia

PATIENT CHARACTERISTICS:

Age:

  • 18 and over

Performance status:

  • Zubrod 0-2

Life expectancy:

  • Not specified

Hematopoietic:

  • See Disease Characteristics
  • Hemoglobin at least 8 g/dL (transfusion allowed)
  • No disseminated intravascular coagulation

Hepatic:

  • Bilirubin less than 2.0 mg/dL (unless due to hemolysis or Gilbert's syndrome)

Renal:

  • Creatinine less than 2.0 mg/dL

Other:

  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception for 2 weeks prior, during, and for 3 months after study
  • No active infection

PRIOR CONCURRENT THERAPY:

Biologic therapy:

  • See Disease Characteristics
  • At least 3 weeks since prior biologic therapy, including hematopoietic growth factors, and recovered

Chemotherapy:

  • See Disease Characteristics
  • At least 3 weeks (1 month for MDS patients) since prior chemotherapy and recovered

Endocrine therapy:

  • Not specified

Radiotherapy:

  • At least 3 weeks since prior radiotherapy and recovered

Surgery:

  • Not specified

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

Collaborators and Investigators

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

Investigators

  • Study Chair: Steven D. Gore, MD, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

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

December 1, 2000

Primary Completion (Actual)

February 1, 2005

Study Completion (Actual)

March 1, 2005

Study Registration Dates

First Submitted

September 11, 2000

First Submitted That Met QC Criteria

January 26, 2003

First Posted (Estimate)

January 27, 2003

Study Record Updates

Last Update Posted (Actual)

September 29, 2017

Last Update Submitted That Met QC Criteria

September 27, 2017

Last Verified

September 1, 2017

More Information

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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