Clinical trial NCT01445080: Sorafenib in Treating Young Patients With Relapsed or Refractory Solid Tumors or Leukemia
Official title: A Phase I/II Study of the Raf Kinase and Receptor Tyrosine Kinase Inhibitor Sorafenib (BAY 43-9006, NSC# 724772) in Children With Refractory Solid Tumors or Refractory Leukemias
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
PHASE2
Conditions: Blastic Phase
Childhood Acute Promyelocytic Leukemia With PML-RARA
Childhood Chronic Myelogenous Leukemia, BCR-ABL1 Positive
Childhood Solid Neoplasm
Chronic Myelogenous Leukemia, BCR-ABL1 Positive
Juvenile Myelomonocytic Leukemia
Philadelphia Chromosome Negative, BCR-ABL1 Positive Chronic Myelogenous Leukemia
Recurrent Childhood Acute Lymphoblastic Leukemia
Recurrent Childhood Acute Myeloid Leukemia
Recurrent Disease
Lead sponsor: National Cancer Institute (NCI)
Sponsor class: NIH
First posted: 2011-10-03
Enrollment: 70
Sex: ALL
Minimum age (years): 2
Maximum age (years): 21
Standard ages: CHILD
ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This phase I/II trial is studying the side effects and best dose of sorafenib in treating young patients with relapsed or refractory solid tumors or leukemia. Sorafenib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the cancer.

Detailed description: PRIMARY OBJECTIVES:

I. Determine the maximum-tolerated dose (MTD) and recommended phase II dose of sorafenib in pediatric patients with relapsed or refractory solid tumors.

II. Determine whether pediatric patients with relapsed or refractory leukemia can tolerate the MTD of sorafenib for solid tumors.

III. Determine the tolerability, active N-oxide metabolite, pharmacodynamics, and activity of sorafenib a the MTD in a subset of patients with acute myeloid leukemia (AML) and FLT3-ITD mutation.

IV. Determine the toxicities of this drug in these patients. V. Determine the pharmacokinetics of this drug in these patients.

SECONDARY OBJECTIVES:

I. Determine, preliminarily, the antitumor activity of this drug within the confines of a phase I trial.

II. Assess the biologic effect of sorafenib on circulating endothelial cells (CEC), circulating CEC precursors (CECP), VEGF, and VEGF-2 in peripheral blood.

III. Assess the gene expression, proteomic profile, and ERK phosphorylation in blasts of patients with refractory leukemia treated with this regimen.

IV. Assess the effect of sorafenib on solid tumor vascularity and tumor blood flow using dynamic contrast-enhanced MRI (DEMRI) in patients with measurable soft tissue tumors.

V. Analyze tumor samples and leukemic blasts for the presence of ras, raf, or FLT3 (leukemias) mutations.

VI. Analyze the plasma inhibitory activity for FLT3 phosphorylation in peripheral blood of patients with AML and FLT3-ITD mutation.

VII. Determine the tolerability, pharmacokinetics of sorafenib and sorafenib?s active N-oxide metabolite, pharmacodynamics, and activity of sorafenib administered at the MTD for refractory leukemias in a subset of patients with AML and FLT3-ITD mutation.

VIII. Analyze the plasma inhibitory activity for FLT3 phosphorylation in peripheral blood samples obtained at the time of PK studies in patients with FLT3-ITD mutation AML.

OUTLINE: This is a dose-escalation, multicenter study. Patients are stratified according to diagnosis (malignant solid tumor vs leukemia).

STRATUM I(REFRACTORY SOLID TUMOR PATIENTS): Patients receive oral sorafenib twice daily on days 1-28. Treatment repeats every 28 days for up to 24 courses in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of sorafenib until the maximum-tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity (DLT). Once the MTD is determined, up to 6 additional patients under 12 years of age may be treated at the MTD. The MTD dose level is also expanded to enroll up to 6 patients with refractory leukemia.

STRATUM II (REFRACTORY LEUKEMIA PATIENTS): A cohort of 3-6 patients with leukemia receives treatment as in stratum 1 at the MTD determined in stratum 1. If 2 of 3 or 2 of 6 patients experience a DLT at the solid tumor MTD, sorafenib is reduced by one dose level. The leukemia MTD is defined as the dose at which \< 1/3 of patients experience DLT during course 1 of treatment.

STRATUM III (ACUTE MYELOID LEUKEMIA AND FLT3-ITD MUTATION PATIENTS): Patients receive sorafenib as in stratum 1 at the MTD determined in stratum 2. Patients undergo blood sample collection for pharmacokinetics, pharmacodynamics (in leukemia blasts only), circulating endothelial cells (CEC), circulating CEC precursors (CECP), VEGF and VEGF-2 , gene expression, proteomic profile, ERK phosphorylation, and FLT3 phosphorylation activity. Tumor tissue samples may also be analyzed for the presence of ras, raf, or FLT3.

After completion of study treatment, patients are followed periodically.

Eligibility criteria: Inclusion Criteria:

* Diagnosis of 1 of the following:

  * Histologically confirmed malignant solid tumor at original diagnosis or relapse

    * Measurable or evaluable disease by CT scan or MRI
  * Histologically confirmed leukemia, including 1 of the following:

    * Acute lymphoblastic leukemia (ALL)

      * Greater than 25% blasts in the bone marrow (M3 bone marrow)
    * Acute myeloid leukemia (AML)

      * Greater than 25% blasts in the bone marrow (M3 bone marrow)
    * AML and FLT3-ITD mutation

      * Patients must have ? 5% blasts in the bone marrow
      * Active extramedullary disease (except leptomeningeal disease) allowed
    * Juvenile myelomonocytic leukemia (JMML) meeting the following criteria:

      * Peripheral blood monocytosis \> 1,000/mm\^3
      * Blasts (including promonocytes) are \< 20% of the WBCs in the blood and of the nucleated bone marrow cells
      * No Philadelphia chromosome (Ph) or BCR/ABL fusion gene
      * Has ? 2 of the following additional diagnostic criteria:

        * Hemoglobin F increased for age
        * Immature granulocytes in the peripheral blood
        * WBC \> 10,000/mm\^3
        * Clonal chromosomal abnormality (e.g., may be monosomy 7)
        * Sargramostim (GM-CSF) hypersensitivity of myeloid progenitors in vitro
    * Chronic myelogenous leukemia (CML) in blast crisis

      * Greater than 25% blasts in the bone marrow (M3 bone marrow)
      * Patients with Ph-positive CML must be refractory to imatinib mesylate
* Relapsed or refractory disease

  * Patients with acute promyelocytic leukemia (APL) must be refractory to treatment with tretinoin and arsenic trioxide
* Standard curative therapies or therapies proven to prolong survival with an acceptable quality of life do not exist
* Active extramedullary disease, except active leptomeningeal leukemia, allowed
* No brain tumors or known brain metastases
* Karnofsky performance status (PS) 50-100% (for patients \> 10 years of age)
* Lansky PS 50-100% (for patients ? 10 years of age)
* Patients with solid tumors must have adequate bone marrow function, as defined by the following:

  * Absolute neutrophil count ? 1,000/mm\^3
  * Platelet count ? 75,000/mm\^3 (transfusion independent)
  * Hemoglobin ? 8.0 g/dL (red blood cell \[RBC\] transfusions allowed)
* Patients with leukemia may have abnormal blood counts but must meet the following criteria:

  * Platelet count ? 20,000/mm\^3 (platelet transfusions allowed)
  * Hemoglobin ? 8.0 g/L (RBC transfusions allowed)
* Patients with acute myeloid leukemia and FLT3-ITD mutation

  * Platelet count ? 20,000/mm\^3
* Lipase and amylase normal
* Creatinine clearance or radioisotope glomerular filtration rate ? 70 mL/min OR creatinine normal based on age as follows:

  * No greater than 0.8 mg/dL (for patients 5 years of age and under)
  * No greater than 1.0 mg/dL (for patients 6-10 years of age)
  * No greater than 1.2 mg/dL (for patients 11-15 years of age)
  * No greater than 1.5 mg/dL (for patients over 15 years of age)
* Patients with solid tumors must meet the following criteria:

  * Bilirubin normal for age
  * ALT normal for age (for the purpose of this study, the upper limit of normal \[ULN\] for ALT is 45 ?/L)
  * Serum albumin ? 2 g/dL
* Patients with leukemia must meet the following criteria:

  * Bilirubin (sum of conjugated + unconjugated) ? 1.5 times ULN for age
  * ALT ? 5.0 times ULN for age (? 225 ?/L) (for the purpose of this study, the ULN for ALT is 45 ?/L)
  * Serum albumin ? 2 g/dL
* Albumin ? 2 g/dL
* PT, PTT, and INR normal (for patients on prophylactic anticoagulation)
* No evidence of dyspnea at rest
* No exercise intolerance
* Pulse oximetry \>94% on room air, if there is clinical indication for determination
* Diastolic blood pressure ? the 95th percentile for age and gender (height included for AML and FLT3-ITD mutation patients)
* Not pregnant or nursing
* Negative pregnancy test
* Fertile patients must use effective contraception
* No uncontrolled infection
* Able to swallow tablets
* No evidence of bleeding diathesis
* No other medical condition or situation that would preclude study compliance
* No known Gilbert syndrome
* Fully recovered from prior chemotherapy, immunotherapy, or radiotherapy (for patients with solid tumors)
* Recovered from the non-hematologic toxic effects of all prior therapy (for patients with leukemia)
* Recovered from acute non-hematologic toxic effects of all prior anti-cancer chemotherapy (for patients with AML and FLT3-ITD mutation)
* At least 7 days since prior hematopoietic growth factors
* At least 7 days since prior biologic agents
* At least 2 weeks since prior local palliative radiotherapy (small port)
* At least 3 months since prior total-body irradiation, craniospinal radiotherapy, or radiation to ? 50% of the pelvis
* At least 6 weeks since other prior substantial bone marrow radiation (e.g., skull, spine, pelvis, ribs)
* At least 3 months since prior stem cell transplantation or rescue (for patients with solid tumors)

  * No evidence of active graft-vs-host disease
* At least 3 months since prior myeloablative therapy followed by bone marrow or stem cell transplantation (for patients with leukemia)
* At least 3 weeks since prior myelosuppressive chemotherapy (6 weeks for nitrosoureas) (for patients with solid tumors)

  * At least 24 hours since prior nitrosoureas (for patients with AML and FLT3-ITD mutation)
* At least 2 weeks since prior chemotherapy (for patients with leukemia)
* At least 3 weeks since prior monoclonal antibody therapy
* No prior sorafenib
* No other concurrent investigational drugs
* No other concurrent anticancer agents or therapies, including chemotherapy, radiotherapy, immunotherapy, or biologic therapy

  * Concurrent maintenance-like chemotherapy for patients with AML and FLT3-ITD mutation allowed
* No concurrent administration of any of the following:

  * Cytochrome P450 enzyme-inducing antiepileptic drugs (e.g., phenytoin, carbamazepine, or phenobarbital)
  * Rifampin
  * Grapefruit juice
  * Hypericum perforatum (St. John wort)
* No concurrent therapeutic anticoagulation

  * Concurrent prophylactic anticoagulation (e.g., low-dose warfarin) of venous or arterial access devices allowed provided the requirements for PT, INR, or PTT are met

Primary outcomes:
measure: Number of Patients With Treatment-related Dose Limiting Toxicity in Cycle 1 by Dose Level
timeFrame: Up to 28 days
measure: Number of Patients With Treatment-related Adverse Events
timeFrame: Up to 2 years
measure: Area Under the Plasma Concentration Versus Time Curve (AUC) of Sorafenib
timeFrame: During cycle 1 or cycle 2 after at least 14 consecutive days of sorafenib administration Pre-dose, 0.5, 1, 2, 3, 5, 8 hours post dose
measure: Clearance (Cl) of Sorafenib
timeFrame: During cycle 1 or cycle 2 after at least 14 consecutive days of sorafenib administration Pre-dose, 0.5, 1, 2, 3, 5, 8 hours post dose
measure: Half-life of Sorafenib
timeFrame: During cycle 1 or cycle 2 after at least 14 consecutive days of sorafenib administration Pre-dose, 0.5, 1, 2, 3, 5, 8 hours post dose
measure: Maximum Serum Concentration (Cmax) of Sorafenib
timeFrame: During cycle 1 or cycle 2 after at least 14 consecutive days of sorafenib administration Pre-dose, 0.5, 1, 2, 3, 5, 8 hours post dose
measure: Number of Patients With Treatment-related Dose Limiting Toxicities in Later Cycles by Dose Level
timeFrame: Up to 2 years
measure: Area Under the Plasma Concentration Versus Time Curve (AUC) of Sorafenib
timeFrame: 8 hours post dose on day 1 of cycle 1
measure: Clearance (Cl) of Sorafenib
timeFrame: 8 hours post dose on day 1 of cycle 1
measure: Half-life of Sorafenib
timeFrame: 8 hours post dose on day 1 of cycle 1
measure: Volume of Distribution at Steady State (Vss) of Sorafenib
timeFrame: 8 hours post dose on day 1 of cycle 1
measure: Maximum Serum Concentration (Cmax) of Sorafenib
timeFrame: 8 hours post dose on day 1 of cycle 1
Secondary outcomes:
measure: Number of Patients Who Respond Using RECIST Criteria
timeFrame: Up to 2 years
measure: Mean Concentration of VEGF2
timeFrame: 28 days
measure: Pharmacodynamics (PD) Blood Flow Part C
timeFrame: 1 week prior to enrollment, then every 28 days
measure: Number of Patients With DEMRI
timeFrame: Up to 2 years
measure: Leukemia Mutations
timeFrame: 1 week prior to enrollment
measure: Plasma Inhibitory Activity (PIA)
timeFrame: 1 week prior to enrollment and then every 28 days
Other outcomes:
Locations:
city: Birmingham
country: United States
facility: University of Alabama at Birmingham Cancer Center
state: Alabama
city: Orange
country: United States
facility: Children's Hospital of Orange County
state: California
city: Palo Alto
country: United States
facility: Lucile Packard Children's Hospital Stanford University
state: California
city: Washington
country: United States
facility: Children's National Medical Center
state: District of Columbia
city: Chicago
country: United States
facility: Lurie Children's Hospital-Chicago
state: Illinois
city: Indianapolis
country: United States
facility: Indiana University/Melvin and Bren Simon Cancer Center
state: Indiana
city: Indianapolis
country: United States
facility: Riley Hospital for Children
state: Indiana
city: Bethesda
country: United States
facility: National Institutes of Health Clinical Center
state: Maryland
city: Boston
country: United States
facility: Dana-Farber Cancer Institute
state: Massachusetts
city: Ann Arbor
country: United States
facility: C S Mott Children's Hospital
state: Michigan
city: Minneapolis
country: United States
facility: University of Minnesota/Masonic Cancer Center
state: Minnesota
city: Saint Louis
country: United States
facility: Washington University School of Medicine
state: Missouri
city: New York
country: United States
facility: Columbia University/Herbert Irving Cancer Center
state: New York
city: Syracuse
country: United States
facility: State University of New York Upstate Medical University
state: New York
city: Cincinnati
country: United States
facility: Cincinnati Children's Hospital Medical Center
state: Ohio
city: Portland
country: United States
facility: Oregon Health and Science University
state: Oregon
city: Philadelphia
country: United States
facility: Children's Hospital of Philadelphia
state: Pennsylvania
city: Pittsburgh
country: United States
facility: Children's Hospital of Pittsburgh of UPMC
state: Pennsylvania
city: Memphis
country: United States
facility: St. Jude Children's Research Hospital
state: Tennessee
city: Dallas
country: United States
facility: UT Southwestern/Simmons Cancer Center-Dallas
state: Texas
city: Houston
country: United States
facility: Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center
state: Texas
city: Seattle
country: United States
facility: Seattle Children's Hospital
state: Washington
city: Milwaukee
country: United States
facility: Children's Hospital of Wisconsin
state: Wisconsin
city: Toronto
country: Canada
facility: Hospital for Sick Children
state: Ontario
city: Montreal
country: Canada
facility: Centre Hospitalier Universitaire Sainte-Justine
state: Quebec
Study officials:
affiliation: COG Phase I Consortium
name: Brigitte C Widemann
role: PRINCIPAL_INVESTIGATOR
References: