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AzTrials

LeukemiaPhase 1/2NCT00372619

Clofarabine and Cytarabine in Treating Young Patients With Refractory or Relapsed Acute Myeloid Leukemia or Acute Lymphoblastic Leukemia

A Phase 1/2 study testing clofarabine, cytarabine and methotrexate in people with Leukemia, run by Children's Oncology Group at 79 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

RATIONALE: Drugs used in chemotherapy, such as clofarabine and cytarabine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more cancer cells. Read more about this study

Who is it for?
Ages 1 year to 30 years
Conditions the study is for
Leukemia
What is being tested?
clofarabine, cytarabine and methotrexate
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
74 participants
Where
79 sitesin 2 countries
Study dates
Mar 2007to Aug 2012
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 1 year to 30 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

DISEASE CHARACTERISTICS:

  • Histologically confirmed diagnosis of 1 of the following:
  • Acute myeloid leukemia (AML) with ≥ 5% blasts in the bone marrow (M2/M3 bone marrow) with or without extramedullary disease
  • Acute lymphoblastic leukemia (ALL) with > 25% blasts in the bone marrow (M3 bone marrow) with or without extramedullary disease
  • Acute leukemia of ambiguous lineage with ≥ 5% blasts in the bone marrow (M2/M3 bone marrow) with or without extramedullary disease
  • Disease must have relapsed after or be refractory to prior induction therapy
  • Patients with AML or acute leukemia of ambiguous lineage must be in first relapse OR refractory to first induction therapy with ≤ 1 attempt at remission induction
  • Patients with AML who enroll on the phase I portion of the study must have received prior mitoxantrone hydrochloride and cytarabine for newly diagnosed AML (phase I closed to accrual as of 09/16/09)
  • Patients with ALL must be in second or third relapse (≤ 3 prior induction regimens) OR refractory to reinduction in first relapse
  • Patients with ALL refractory to first induction therapy are not eligible
  • No acute promyelocytic leukemia
  • No CNS 3 involvement (i.e., WBC ≥ 5/μL in the cerebrospinal fluid with blasts present on cytospin)

PATIENT CHARACTERISTICS:

  • Karnofsky performance status (PS) 50-100% (> 16 years of age) OR Lansky PS 50-100% (≤ 16 years of age) OR ECOG PS 0-2
  • Life expectancy ≥ 8 weeks
  • Creatinine clearance or radioisotope glomerular filtration rate ≥ 70 mL/min
  • Direct bilirubin ≤ 1.5 times upper limit of normal (ULN)
  • ALT < 2.5 times ULN (unless it is related to leukemic involvement)
  • Shortening fraction ≥ 27% by echocardiogram OR ejection fraction ≥ 45% by gated radionuclide study
  • No evidence of dyspnea at rest or exercise intolerance
  • Pulse oximetry > 94% at room air
  • Amylase ≤ 1.5 times ULN
  • Lipase < 1.5 times ULN
  • No active, uncontrolled grade 3 or 4 infection
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception during and for ≥ 3 months after completion of study treatment
  • No known hepatitis B or C infection or history of cirrhosis

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics
  • Recovered from all prior therapy*
  • At least 14 days since prior cytotoxic therapy (except hydroxyurea and intrathecal chemotherapy)*
  • At least 7 days since prior biologic agent*
  • At least 14 days since prior monoclonal antibody therapy*
  • No more than 1 prior autologous or allogeneic hematopoietic stem cell transplantation
  • No evidence of active graft-vs-host disease
  • At least 4 months since transplantation
  • No other concurrent chemotherapy or immunomodulating agents
  • No other concurrent investigational therapy NOTE: *Patients who relapse during ALL maintenance therapy do not require a waiting period.

Trial locations and contacts

79 sites in 2 countries.

79 sites in 2 countries

United States74 sites
  • Tulane Cancer Center Office of Clinical Research

    Alexandria, Louisiana, 71315-3198

  • C.S. Mott Children's Hospital at University of Michigan Medical Center

    Ann Arbor, Michigan, 48109-0286

  • AFLAC Cancer Center and Blood Disorders Service of Children's Healthcare of Atlanta - Egleston Campus

    Atlanta, Georgia, 30322

  • Children's Hospital Colorado Center for Cancer and Blood Disorders

    Aurora, Colorado, 80045

  • Alvin and Lois Lapidus Cancer Institute at Sinai Hospital

    Baltimore, Maryland, 21215

  • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

    Baltimore, Maryland, 21231-2410

  • CancerCare of Maine at Eastern Maine Medical Center

    Bangor, Maine, 04401

  • UAB Comprehensive Cancer Center

    Birmingham, Alabama, 35294

  • Lineberger Comprehensive Cancer Center at University of North Carolina - Chapel Hill

    Chapel Hill, North Carolina, 27599-7295

  • Blumenthal Cancer Center at Carolinas Medical Center

    Charlotte, North Carolina, 28232-2861

  • Presbyterian Cancer Center at Presbyterian Hospital

    Charlotte, North Carolina, 28233-3549

  • University of Illinois Cancer Center

    Chicago, Illinois, 60612-7243

  • Children's Memorial Hospital - Chicago

    Chicago, Illinois, 60614

  • Cincinnati Children's Hospital Medical Center

    Cincinnati, Ohio, 45229-3039

  • Rainbow Babies and Children's Hospital

    Cleveland, Ohio, 44106-5000

  • Cleveland Clinic Taussig Cancer Center

    Cleveland, Ohio, 44195

  • Ellis Fischel Cancer Center at University of Missouri - Columbia

    Columbia, Missouri, 65203

  • Palmetto Health South Carolina Cancer Center

    Columbia, South Carolina, 29203

  • Nationwide Children's Hospital

    Columbus, Ohio, 43205-2696

  • Driscoll Children's Hospital

    Corpus Christi, Texas, 78411

  • Simmons Comprehensive Cancer Center at University of Texas Southwestern Medical Center - Dallas

    Dallas, Texas, 75390

  • Dayton Children's - Dayton

    Dayton, Ohio, 45404-1815

  • Southern California Permanente Medical Group

    Downey, California, 90027

  • Lee Cancer Care of Lee Memorial Health System

    Fort Myers, Florida, 33901

  • Cook Children's Medical Center - Fort Worth

    Fort Worth, Texas, 76104

  • Helen DeVos Children's Hospital at Spectrum Health

    Grand Rapids, Michigan, 49503

  • Greenville Hospital Cancer Center

    Greenville, South Carolina, 29605

  • Hackensack University Medical Center Cancer Center

    Hackensack, New Jersey, 07601

  • Penn State Children's Hospital

    Hershey, Pennsylvania, 17033-0850

  • Cancer Research Center of Hawaii

    Honolulu, Hawaii, 96813

  • Baylor University Medical Center - Houston

    Houston, Texas, 77030-2399

  • Indiana University Melvin and Bren Simon Cancer Center

    Indianapolis, Indiana, 46202-5289

  • St. Vincent Indianapolis Hospital

    Indianapolis, Indiana, 46260

  • University of Mississippi Cancer Clinic

    Jackson, Mississippi, 39216-4505

  • Nemours Children's Clinic

    Jacksonville, Florida, 32207

  • Children's Mercy Hospital

    Kansas City, Missouri, 64108

  • CCOP - Nevada Cancer Research Foundation

    Las Vegas, Nevada, 89109-2306

  • Jonathan Jaques Children's Cancer Center at Miller Children's Hospital

    Long Beach, California, 90801

  • Kosair Children's Hospital

    Louisville, Kentucky, 40232

  • Children's Hospital Central California

    Madera, California, 93638-8762

  • Marshfield Clinic - Marshfield Center

    Marshfield, Wisconsin, 54449

  • Midwest Children's Cancer Center at Children's Hospital of Wisconsin

    Milwaukee, Wisconsin, 53226

  • Masonic Cancer Center at University of Minnesota

    Minneapolis, Minnesota, 55455

  • Overlook Hospital

    Morristown, New Jersey, 07962

  • Vanderbilt-Ingram Cancer Center

    Nashville, Tennessee, 37232-6838

  • Cancer Institute of New Jersey at UMDNJ - Robert Wood Johnson Medical School

    New Brunswick, New Jersey, 08903

  • Herbert Irving Comprehensive Cancer Center at Columbia University Medical Center

    New York, New York, 10032

  • Newark Beth Israel Medical Center

    Newark, New Jersey, 07112

  • Children's Hospital of The King's Daughters

    Norfolk, Virginia, 23507-1971

  • Children's Hospital of Orange County

    Orange, California, 92868

  • Nemours Children's Clinic - Orlando

    Orlando, Florida, 32806

  • St. Joseph's Hospital and Medical Center

    Paterson, New Jersey, 07503

  • Nemours Children's Clinic - Pensacola

    Pensacola, Florida, 32504

  • Children's Hospital of Philadelphia

    Philadelphia, Pennsylvania, 19104-9786

  • Children's Hospital of Pittsburgh of UPMC

    Pittsburgh, Pennsylvania, 15213

  • Legacy Emanuel Hospital and Health Center and Children's Hospital

    Portland, Oregon, 97227

  • Carilion Medical Center for Children at Roanoke Community Hospital

    Roanoke, Virginia, 24014

  • Mayo Clinic Cancer Center

    Rochester, Minnesota, 55905

  • James P. Wilmot Cancer Center at University of Rochester Medical Center

    Rochester, New York, 14642

  • Primary Children's Medical Center

    Salt Lake City, Utah, 84113-1100

  • University of Texas Health Science Center at San Antonio

    San Antonio, Texas, 78207

  • Rady Children's Hospital - San Diego

    San Diego, California, 92123-4282

  • UCSF Helen Diller Family Comprehensive Cancer Center

    San Francisco, California, 94115

  • Curtis and Elizabeth Anderson Cancer Institute at Memorial Health University Medical Center

    Savannah, Georgia, 31403-3089

  • Children's Hospital and Regional Medical Center - Seattle

    Seattle, Washington, 98105

  • Providence Cancer Center at Sacred Heart Medical Center

    Spokane, Washington, 99220-2555

  • Simmons Cooper Cancer Institute

    Springfield, Illinois, 62794-9677

  • Siteman Cancer Center at Barnes-Jewish Hospital - Saint Louis

    St Louis, Missouri, 63110

  • SUNY Upstate Medical University Hospital

    Syracuse, New York, 13210

  • St. Joseph's Cancer Institute at St. Joseph's Hospital

    Tampa, Florida, 33607

  • Lombardi Comprehensive Cancer Center at Georgetown University Medical Center

    Washington D.C., District of Columbia, 20007

  • Children's National Medical Center

    Washington D.C., District of Columbia, 20010-2970

  • Alfred I. duPont Hospital for Children

    Wilmington, Delaware, 19803

  • UMASS Memorial Cancer Center - University Campus

    Worcester, Massachusetts, 01655

Other trials in United States

Canada5 sites
  • IWK Health Centre

    Halifax, Nova Scotia, B3J 3G9

  • Hopital Sainte Justine

    Montreal, Quebec, H3T 1C5

  • Allan Blair Cancer Centre at Pasqua Hospital

    Regina, Saskatchewan, S4T 7T1

  • Hospital for Sick Children

    Toronto, Ontario, M5G 1X8

  • CancerCare Manitoba

    Winnipeg, Manitoba, R3E 0V9

Other trials in Canada

About this study

Official title: A Phase I/II Study of CLOLAR® (Clofarabine, IND# 73, 789) in Combination With Cytarabine in Pediatric Patients With Refractory/Relapsed Leukemia

RATIONALE: Drugs used in chemotherapy, such as clofarabine and cytarabine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more cancer cells.

PURPOSE: This phase I/II trial is studying the side effects and best dose of clofarabine when given together with cytarabine and to see how well they work in treating young patients with refractory or relapsed acute myeloid leukemia or acute lymphoblastic leukemia. (Phase I closed to enrollment as of 09/16/09)

Read the detailed description

OBJECTIVES:

Primary

  • To define the overall response rate (complete remission or remission without platelet recovery) in young patients with relapsed or refractory acute myeloid leukemia (AML) or acute lymphoblastic leukemia (ALL) treated with clofarabine in combination with cytarabine.

Secondary

  • To determine the safety profile and tolerability of clofarabine when given in combination with cytarabine in patients with and without prior stem cell transplantation.
  • To identify apoptosis specific genes that are important in mediating response to clofarabine and cytarabine.
  • To quantitate the level of human equilibrative nucleoside transporter proteins (hENT1 and hENT2) and human concentrative nucleoside transporter proteins (hCNT2 and hCNT3) in blasts of these patients.
  • To determine gene expression profiles at study entry and at time of relapse in order to isolate profiles that may predict response and also to complement apoptosis specific protein arrays.
  • To perform serial measurements of minimal residual disease (MRD) to provide an objective determination of the effectiveness of this treatment regimen and to correlate with post remission events (relapse, death).
  • To perform FLT3/ITD analysis to help determine the prevalence and clinical significance of this somatic mutation in patients with relapsed AML.

OUTLINE: This is a multicenter, phase I, dose-escalation study of clofarabine followed by a phase II study. Patients are stratified according to disease (acute lymphoblastic leukemia [ALL] vs acute myeloid leukemia [AML]). (Phase I closed to accrual as of 09/16/09)

  • Intrathecal CNS prophylaxis (all patients with ALL and at physician's discretion for patients with AML or acute leukemia of ambiguous lineage): Patients receive intrathecal (IT) cytarabine on day 0 of the first course of induction therapy. Patients also receive IT methotrexate on day 1 of the second course of induction therapy and on day 1 of all courses of maintenance therapy.
  • Induction therapy:
  • Course 1: Patients receive cytarabine IV over 2 hours and clofarabine IV over 2 hours on days 1-5. Patients with ≥ 5% blasts (i.e., M2 or M3 bone marrow) at days 14-21 proceed immediately to course 2 of induction therapy. Patients with < 5% blasts (i.e., M1 bone marrow) may proceed to course 2 of induction therapy at blood count recovery or at day 42.
  • Course 2: Patients receive clofarabine IV over 2 hours followed by cytarabine IV over 2 hours on days 1-5. After the second course of induction therapy, patients with M2 or M3 bone marrow at days 14-21 are removed from the study. Patients with M1 bone marrow proceed to maintenance therapy 14-42 days after the initiation of course 2.
  • Maintenance therapy: Patients receive clofarabine and cytarabine as in induction therapy. Treatment repeats every 14-42 days for up to 10 courses in the absence of disease progression or unacceptable toxicity.

Patients may undergo blood and bone marrow sample collection periodically for correlative laboratory studies.

After completion of study therapy, patients are followed periodically for up to 5 years.

PROJECTED ACCRUAL: A total of 87 patients will be accrued for this study.

Conditions
Leukemia
Being tested
clofarabine, cytarabine, methotrexate, laboratory biomarker analysis
Keywords
recurrent childhood acute lymphoblastic leukemia, recurrent childhood acute myeloid leukemia, acute undifferentiated leukemia, adult acute minimally differentiated myeloid leukemia (M0), childhood acute minimally differentiated myeloid leukemia (M0), adult acute myeloblastic leukemia without maturation (M1), childhood acute myeloblastic leukemia without maturation (M1), adult acute myeloblastic leukemia with maturation (M2), childhood acute myeloblastic leukemia with maturation (M2), adult acute myelomonocytic leukemia (M4), childhood acute myelomonocytic leukemia (M4), adult acute monoblastic leukemia (M5a), childhood acute monoblastic leukemia (M5a), adult acute monocytic leukemia (M5b), childhood acute monocytic leukemia (M5b), adult erythroleukemia (M6a), adult pure erythroid leukemia (M6b), childhood acute erythroleukemia (M6), adult acute megakaryoblastic leukemia (M7), childhood acute megakaryocytic leukemia (M7)
Medical subject headings
Leukemia, Precursor Cell Lymphoblastic Leukemia-Lymphoma, Leukemia, Biphenotypic, Acute, Leukemia, Myeloid, Acute, Leukemia, Myelomonocytic, Acute, Leukemia, Monocytic, Acute, Leukemia, Erythroblastic, Acute, Leukemia, Megakaryoblastic, Acute

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • clofarabineDrug

    Also called Cl-F-Ara-A, CAFdA, 2-Chloro-9-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-9H-purin-6-amine, Clolar

    Given IV for 5 days

  • cytarabineDrug

    Also called Cytosine arabinoside, Ara-C, Cytosar, NSC #063878

    Given IV

  • methotrexateDrug

    Also called MTX, amethopterin, Trexall, NSC #000740

    Given intrathecally or IT age based dosage

  • laboratory biomarker analysisOther

Study groups in NCT00372619
Study groupRoleWhat they receive
Clofarabine 40 mg/m² to assess feasibility in ALL patients.ExperimentalClofarabine 40 mg/m² to assess feasibility in ALL patients. Patients receive Cycle 1 (14-42 days) Cytarabine IT (aged based dosage 1-1.99 30 mg, 2-2.99 50 mg, ≥ 3 years 70 mg on Day 0, Clofarabine IV (dosage 40 mg/m2/dose) on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Cycle 2 (14-42 days) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 40 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Maintenance cycles 1-10 (14-42 days each) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 40 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5.
Receives: Drug: clofarabine; Drug: cytarabine; Drug: methotrexate; Other: laboratory biomarker analysis
Clofarabine 40 mg/m² to assess feasibility in AML patients.ExperimentalClofarabine 40 mg/m² to assess feasibility in AML patients. Patients receive Cycle 1 (14-42 days) Cytarabine IT (aged based dosage 1-1.99 30 mg, 2-2.99 50 mg, ≥ 3 years 70 mg on Day 0, Clofarabine IV (dosage 40 mg/m2/dose) on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Cycle 2 (14-42 days) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 40 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Maintenance cycles 1-10 (14-42 days each) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 40 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5.
Receives: Drug: clofarabine; Drug: cytarabine; Drug: methotrexate; Other: laboratory biomarker analysis
Clofarabine 52 mg/m² to assess feasibility in ALL patients.ExperimentalClofarabine 52 mg/m² to assess feasibility in ALL patients. Patients receive Cycle 1 (14-42 days) Cytarabine IT (aged based dosage 1-1.99 30 mg, 2-2.99 50 mg, ≥ 3 years 70 mg on Day 0, Clofarabine IV (dosage 52 mg/m2/dose) on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Cycle 2 (14-42 days) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Maintenance cycles 1-10 (14-42 days each) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5.
Receives: Drug: clofarabine; Drug: cytarabine; Drug: methotrexate; Other: laboratory biomarker analysis
Clofarabine 52 mg/m² to assess efficacy in ALL patients.ExperimentalClofarabine 52 mg/m² to assess efficacy in ALL patients. Patients receive Cycle 1 (14-42 days) Cytarabine IT (aged based dosage 1-1.99 30 mg, 2-2.99 50 mg, ≥ 3 years 70 mg on Day 0, Clofarabine IV (dosage 52 mg/m2/dose) on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Cycle 2 (14-42 days) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Maintenance cycles 1-10 (14-42 days each) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5.
Receives: Drug: clofarabine; Drug: cytarabine; Drug: methotrexate; Other: laboratory biomarker analysis
Clofarabine 52 mg/m² to assess feasibility in AML patients.ExperimentalClofarabine 52 mg/m² to assess feasibility in AML patients. Patients receive Cycle 1 (14-42 days) Cytarabine IT (aged based dosage 1-1.99 30 mg, 2-2.99 50 mg, ≥ 3 years 70 mg on Day 0, Clofarabine IV (dosage 52 mg/m2/dose) on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Cycle 2 (14-42 days) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Maintenance cycles 1-10 (14-42 days each) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5.
Receives: Drug: clofarabine; Drug: cytarabine; Drug: methotrexate; Other: laboratory biomarker analysis
Clofarabine 52 mg/m² to assess efficacy in AML patientsExperimentalClofarabine 52 mg/m² to assess efficacy in AML patients. Patients receive Cycle 1 (14-42 days) Cytarabine IT (aged based dosage 1-1.99 30 mg, 2-2.99 50 mg, ≥ 3 years 70 mg on Day 0, Clofarabine IV (dosage 52 mg/m2/dose) on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Cycle 2 (14-42 days) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Maintenance cycles 1-10 (14-42 days each) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5.
Receives: Drug: clofarabine; Drug: cytarabine; Drug: methotrexate; Other: laboratory biomarker analysis
Clofarabine 52 mg/m² to assess efficacy - ambiguous lineage ptExperimentalClofarabine 52 mg/m² to assess efficacy in acute leukemia of ambiguous lineage patients. Patients receive Cycle 1 (14-42 days) Cytarabine IT (aged based dosage 1-1.99 30 mg, 2-2.99 50 mg, ≥ 3 years 70 mg on Day 0, Clofarabine IV (dosage 52 mg/m2/dose) on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Cycle 2 (14-42 days) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5. Maintenance cycles 1-10 (14-42 days each) Methotrexate IT (age based dosage 1-1.99 8 mg, 2-2.99 10 mg, ≥ 3 12 mg) on day 1, Clofarabine IV 52 mg/m2/dose on days 1-5, and High Dose Cytarabine IV 1000 mg/m2/dose on days 1-5.
Receives: Drug: clofarabine; Drug: cytarabine; Drug: methotrexate; Other: laboratory biomarker analysis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overall Response (CR for ALL Patients), (CR + CRp for AML Patients)

    Overall response for ALL patients: CR - complete remission (attainment of an M1 bone marrow (< 5% blasts) with no evidence of circulating blasts or extramedullary disease and with recovery of peripheral counts (absolute neutrophil count (ANC) > 750/μL and platelet count > 75,000/μL).

    Overall response for AML patients: (CR + CRp), defined as:

    CR - complete remission (attainment of an M1 bone marrow (<5% blasts) with no evidence of circulating blasts or extramedullary disease and with recovery of peripheral blood counts (absolute neutrophil count (ANC) > 1000/uL and platelet count > 100,000/uL)) or CRp - remission without platelet recovery (Attainment of an M1 bone marrow (<5% blasts) with no evidence of circulating blasts or extramedullary disease and with recovery of absolute neutrophil count (ANC) > 1000/uL and platelet transfusion independence (defined as: no platelet transfusions x 1 week)).

    Measured: 2 cycles or up to 84 days

Secondary outcomes (2)
  1. Safety and Tolerability as Measured by CTCAE v3.0

    Number of participants with at least one grade 3 or higher adverse event during therapy.

    Measured: End of therapy

  2. Correlate the Expression of Apoptosis Specific Genes

    Correlate the expression of apoptosis specific genes with chemoresistance and determine whether therapy with clofarabine is able to overcome blocks in apoptosis through modulation of gene expression. Gene expression analysis will be performed on specimens obtained during therapy. Apoptosis specific microarray data will be analyzed using GeneTraffic software (Iobion Informatics, La Jolla CA).

    Measured: End of therapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Sep 2006 (estimated)
  2. Study startMar 2007
  3. Primary completionAug 2012
  4. Study completionAug 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
74 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00372619
Sponsor's protocol ID
AAML0523
Other IDs
CDR0000494654, NCI-2009-00319, COG-AAML0523
Status last verified
Feb 2017
First submitted
6 Sep 2006
Last updated
5 Jun 2017
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing clofarabine, cytarabine and methotrexate in people with Leukemia, run by Children's Oncology Group at 79 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Jun 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 79 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 Feb 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall Response (CR for ALL Patients), (CR + CRp for AML Patients) (time frame: 2 cycles or up to 84 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jun 2017.

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