Study of Stem Cell Transplant for Leukemia and Myelodysplastic Syndromes Using Clofarabine and Busulfan Regimen

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00852163
Recruitment Status : Completed
First Posted : February 26, 2009
Last Update Posted : April 4, 2013
Genzyme, a Sanofi Company
Information provided by (Responsible Party):
Baylor Research Institute

Brief Summary:
The purpose of this study is to determine whether Clofarabine in combination with Busulfan is effective as a preparative transplant regimen for the treatment of leukemia and myelodysplastic syndromes

Condition or disease Intervention/treatment Phase
Leukemia Myelodysplastic Syndrome Drug: Clofarabine with Busulfan Phase 2

Detailed Description:
The success of allogeneic hematopoietic transplantation in the treatment of myeloid malignancies is determined by two main factors: the limiting of regimen-related toxicity and the prevention of recurrent leukemia. Over the past 10 years, considerable clinical research has been devoted to the reduction of regimen-related toxicity through the use of reduced-intensity (nonmyeloablative) transplants. However, leukemic relapse has remained a difficult obstacle. Thus, the need for highly effective, yet non-toxic regimens persists, particularly for elderly patients for whom very little overall progress has been made. Clofarabine is a chemotherapeutic agent with novel myelotoxic properties and proven low toxicity in older patients. These qualities suggest clofarabine may be a useful component of conditioning regimens for stem cell transplantation.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 20 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase II Trial of Clofarabine With Parenteral Busulfan (Busulfex®) Followed by Allogeneic Related or Unrelated Donor Transplantation for the Treatment of Hematologic Malignancies and Diseases
Study Start Date : March 2007
Actual Primary Completion Date : August 2011
Actual Study Completion Date : December 2011

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Arm Intervention/treatment
Experimental: Clofarabine with Busulfan
Clofarabine 40 mg/m2 IV QD × 5 days Busulfan (Busulfex™) 3.2 mg/kg IV QD × 2 days
Drug: Clofarabine with Busulfan
Clofarabine 40 mg/m2 IV QD × 5 days Busulfan (Busulfex™) 3.2 mg/kg IV QD × 2 days
Other Names:
  • Clofarabine:CLOLAR, clofarabine; CAFdA; Cl-F-ara-A;
  • Busulfan: Busulfex™

Primary Outcome Measures :
  1. Disease free survival at one and two year [ Time Frame: At 1 year and 2 Year ]

Secondary Outcome Measures :
  1. Incidence of hematopoietic engraftment [ Time Frame: 100 days ]
  2. Incidence and severity of acute toxicities [ Time Frame: 100 days ]
  3. Pharmacokinetic profiles of high dose busulfan and standard dose clofarabine [ Time Frame: Lesss than 8 days ]
  4. Acute GVHD [ Time Frame: 100 Days ]

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Disease Criteria:

  • Acute myelogenous leukemia (AML)
  • Acute lymphocytic leukemia (ALL)
  • Myelodysplastic syndromes (MDS) Refractory anemia (RA) with adverse cytogenetics (SWOG criteria) or beyond (RAEB, RAEB-T, AML)
  • Other Myeloproliferative Disorders Myelofibrosis, Agnogenic Myeloid Metaplasia, Chronic Myelomonocytic Leukemia (CMML)
  • Chronic lymphocytic leukemia (CLL) High risk or advanced disease

Other Inclusion Criteria:

  • 18 years of age or older
  • Related or unrelated donor with HLA criteria as follows:

    • Related donors: a serologic equivalent HLA Class I (A, B, and C) and Class II DRB1 or DQB1 matched donor OR a donor who is a single 1 antigen mismatched for A, B, C, DRB1, or DQB1 loci
    • Unrelated donors: sequence-based typing fully matched A, B, C, DRB1, and DQB1 allele-matched donor OR a donor who is no greater than 1 antigen mismatched for A, B, C, DRB1, or DQB1 loci
  • Able to provide valid informed consent.
  • Female patients must have a negative serum pregnancy test within 2 weeks prior to enrollment.
  • Male and female patients must use an effective contraceptive method during the study and for up to 12 months after study treatment.

Exclusion Criteria:

Organ Function Criteria:

  • Cardiac: symptomatic coronary artery disease or ejection fraction <45% or uncontrolled cardiac failure
  • Pulmonary: FEV1 or DLCO (corrected) <50% of predicted values and/or receiving continuous supplementary oxygen
  • Hepatic: Bilirubin ≥ 1.2 mg/dL or AST/ALT ≥ 3x upper limit of normal (ULN) unless the liver is involved with malignant disease
  • Renal: creatinine clearance < 60 mL/min (24-hour urine collection) or <50 mL/min (Glofil test)
  • Karnofsky score <60%
  • Active CNS disease
  • Prior hematopoietic transplantation (autologous or allogeneic) <6 months prior to study entry
  • Use of investigational agents less than or equal to 30 days before study entry.
  • Life threatening, or clinically significant infection
  • Any significant concurrent disease, illness, or psychiatric disorder that would compromise patient safety or compliance, interfere with consent, study participation, follow up, or interpretation of study results.
  • Female patients who are pregnant or breast feeding
  • HIV-positive

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00852163

United States, Texas
Baylor University Medical Center
Dallas, Texas, United States, 75246
Sponsors and Collaborators
Baylor Research Institute
Genzyme, a Sanofi Company
Principal Investigator: Edward Agura, MD Baylor Health Care System

Responsible Party: Baylor Research Institute Identifier: NCT00852163     History of Changes
Other Study ID Numbers: 006-150
First Posted: February 26, 2009    Key Record Dates
Last Update Posted: April 4, 2013
Last Verified: April 2013

Keywords provided by Baylor Research Institute:
conditioning, preparative
clofarabine; transplant
myelodysplastic syndrome

Additional relevant MeSH terms:
Myelodysplastic Syndromes
Pathologic Processes
Neoplasms by Histologic Type
Bone Marrow Diseases
Hematologic Diseases
Precancerous Conditions
Alkylating Agents
Molecular Mechanisms of Pharmacological Action
Immunosuppressive Agents
Immunologic Factors
Physiological Effects of Drugs
Antineoplastic Agents, Alkylating
Antineoplastic Agents
Myeloablative Agonists
Antimetabolites, Antineoplastic