DFMO Alone and in Combination With Etoposide for Refractory or Relapsed Neuroblastoma

support neuroblastoma research Full Trial Info on ClinicalTrials.gov

DFMO is an oral drug that inhibits ODC and polyamines which are critical in cancer growth and therefore present a therapeutic target for the treatment and prevention of recurrence of NB and other types of cancer.

Open Sites:

Orlando- Arnold Palmer Hospital for Children
M.D. Anderson Cancer Center Orlando

North Carolina- Levine Children's Hospital and Carolinas Medical Center

Michigan- Helen DeVos Children’s Hospital

Connecticut Children’s Medical Center

Kansas City- Children's Mercy Hospitals and Clinics - in progress of opening

Oncology Children's Hospital of Orange County

Research Articles:

Ornithine decarboxylase inhibition by alpha-difluoromethylornithine activates opposing signaling pathways via phosphorylation of both Akt/protein kinase B and p27Kip1 in neuroblastoma

Key role for p27Kip1, retinoblastoma protein Rb, and MYCN in polyamine inhibitor-induced G1 cell cycle arrest in MYCN-amplified human neuroblastoma cells

Objectives:

Primary

To determine the safety, tolerability and maximum tolerated dose (MTD) of DFMO as a single agent and in combination with etoposide in pediatric and young adult patients with refractory or recurrent neuroblastoma

Secondary

To evaluate the activity of DFMO as a single agent and in combination with etoposide based on:

  • Progression free survival (PFS) 
  • Overall response rate (ORR)

To evaluate the pharmacokinetics (PK) of DFMO as single agent

Methodology:

DFMO is an open label, multicenter, dose escalation study in patients with refractory or recurrent neuroblastoma.

Patients:  4 cohorts, 3-6 pts. per cohort

Cycle1:  Patient will take DFMO by mouth 2 times a day for 21 days

Cycle 2-5: Patient will take DFMO by mouth 2 times a day for 21 days and Etoposide by mouth 1 time a day for the first 14 days

The following will be monitored:

  • Physical examination (including height and weight)
  • BSA calculation (from body weight and height); 
  • Vital signs, including temperature, pulse rate, and blood pressure 
  • Blood tests and Urine VMA/HVA 
  • Adverse Events
  • CT/MRI, MIBG, Bone Marrow, and Audiogram

Eligibility

Inclusion:

  • Age: 0-21 years at the time of diagnosis.
  • Diagnosis: Histologic verification at either the time of original diagnosis or relapse of neuroblastoma
  • Disease Status: Refractory or relapsed neuroblastoma
  • Measurable or evaluable disease, including at least one of the following: Measureable tumor >10mm by CT or MRI; A positive MIBG and abnormal urinary catecholamine levels; Positive bone marrow biopsy/aspirate.
  • Current disease state must be one for which there is currently no known curative therapy
  • A negative urine pregnancy test is required for female subjects of child bearing potential (onset of menses or ≥13 years of age).
  • Patients without bone marrow metastases must have an ANC > 500/μl and platelet count >50,000/μl
  • Organ Function Requirements:
    Subjects must have adequate liver function as defined by AST and ALT <10x upper limit of normal
    Serum bilirubin must be ≤ 2.0 mg/dl
    Serum creatinine must be ≤ 3 mg/dl x upper limit of normal

Exclusion:

  • Life expectancy <2 months or Lansky <30%
  • Investigational drug therapy
  • Infection not under control

To Participate, Contact:

Study Chair
Giselle Sholler, M.D.
616-234-5495
Email

Program Manager
Genevieve Bergendahl, R.N.
616-234-5707
Email