Fludeoxyglucose F 18 Positron Emission Tomography and Magnetic Resonance Perfusion Imaging in Patients With Neurofibromatosis 1 and Plexiform Neurofibroma

This study has been terminated.
(Study was closed early due to poor accrual.)
Information provided by (Responsible Party):
Children's Hospital of Philadelphia
ClinicalTrials.gov Identifier:
First received: May 6, 2003
Last updated: April 3, 2014
Last verified: April 2014

RATIONALE: New imaging procedures such as fludeoxyglucose F 18 positron emission tomography (FDG-PET) and magnetic resonance (MR) perfusion imaging may improve the ability to detect disease progression, help doctors predict a patient's response to treatment, and help plan the most effective treatment.

PURPOSE: This diagnostic trial is studying how well FDG-PET and MR perfusion imaging work in finding disease progression and determining response to treatment in patients with neurofibromatosis 1 and plexiform neurofibroma.

Condition Intervention
Neurofibromatosis Type 1
Precancerous Condition
Radiation: fludeoxyglucose F 18
Radiation: gadopentetate dimeglumine

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Novel Imaging Modalities For Plexiform Neurofibromas

Resource links provided by NLM:

Further study details as provided by Children's Hospital of Philadelphia:

Primary Outcome Measures:
  • Tumor Progression as Measured by Tumor Area and Volume at 1 Year. [ Time Frame: One year ] [ Designated as safety issue: No ]
    We correlated SUVmax and change in tumor volume over the subsequent year

Enrollment: 18
Study Start Date: April 2002
Study Completion Date: May 2011
Primary Completion Date: May 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 18FDG-PET scan and MR perfusion
Subjects will undergo MRI for quantitative (2D and 3D) evaluation of plexiform neurofibroma size, MR perfusion scan, and fludeoxyglucose (18FDG) PET scan at the time of study entry. Subjects who are treated for plexiform neurofibroma will undergo another 18FDG PET scan after one year of study entry.
Radiation: fludeoxyglucose F 18 Radiation: gadopentetate dimeglumine

Detailed Description:


  • Determine whether fludeoxyglucose F 18 positron emission tomography (FDG-PET) and MR perfusion studies can predict plexiform neurofibroma growth rates in patients with neurofibromatosis 1.
  • Determine whether FDG-PET and MR perfusion studies can predict the likelihood of response in patients who are undergoing investigational treatment for plexiform neurofibromas.
  • Identify neuroimaging characteristics that distinguish patients who have responded to therapy from those who have not after completion of treatment.


  • Stratum 1: Patients undergo MR perfusion scan with gadopentetate dimeglumine and fludeoxyglucose F 18 positron emission tomography (FDG-PET) at baseline and quantitative MRI evaluation at baseline and 1 year.
  • Stratum 2: Patients undergo quantitative MRI, MR perfusion scan with gadopentetate dimeglumine, and FDG-PET at baseline and 1 year.

PROJECTED ACCRUAL: A total of 48 patients (32 for stratum 1 and 16 for stratum 2) will be accrued for this study.


Ages Eligible for Study:   up to 25 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No


  • Stratum 1:

    • Diagnosis of neurofibromatosis 1 (NF1) and plexiform neurofibromas
    • At high risk for progression, as defined by any of the following:

      • Anatomic location such that progression carries a high risk of impairment of function, pain, or disfigurement (e.g., neck/mediastinum, paraspinal nerve roots, orbit, and face)
      • Tumors that the patient, family, or caregiver believes have increased in size within the past year, but appear stable by standard clinical or radiographic measures
    • No plexiform neurofibromas that are small, cause no pain or functional impairment, or are not likely to cause pain or functional impairment over the succeeding 12 months
  • Stratum 2:

    • Diagnosis of NF1 and progressive plexiform neurofibromas

      • Neurofibroma progression documented by increase in lesion size on MRI
    • Currently being enrolled on a clinical therapeutic trial at Children's Hospital of Philadelphia



  • 25 and under

Performance status

  • Not specified

Life expectancy

  • Not specified


  • Not specified


  • Not specified


  • Not specified


  • Not pregnant or nursing
  • Negative pregnancy test


Biologic therapy

  • Not specified


  • Stratum 1:

    • No prior or concurrent chemotherapy
    • No concurrent enrollment on a chemotherapy clinical trial
  • Stratum 2:

    • At least 4 weeks since prior chemotherapy

Endocrine therapy

  • Not specified


  • At least 6 weeks since prior radiotherapy (stratum 2)


  • Prior surgery for progressive plexiform neurofibroma allowed if incompletely resected and measurable disease remains (stratum 2)
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00060008

United States, Pennsylvania
Abramson Cancer Center of the University of Pennsylvania
Philadelphia, Pennsylvania, United States, 19104-4283
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States, 19104
Sponsors and Collaborators
Children's Hospital of Philadelphia
Study Chair: Michael Fisher, MD Children's Hospital of Philadelphia
  More Information

Responsible Party: Children's Hospital of Philadelphia
ClinicalTrials.gov Identifier: NCT00060008     History of Changes
Other Study ID Numbers: 2001-8-2543  CHP-724  CDR0000299006 
Study First Received: May 6, 2003
Results First Received: April 1, 2014
Last Updated: April 3, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by Children's Hospital of Philadelphia:
neurofibromatosis type 1
plexiform neurofibroma

Additional relevant MeSH terms:
Nerve Sheath Neoplasms
Neurofibroma, Plexiform
Neurofibromatosis 1
Precancerous Conditions
Genetic Diseases, Inborn
Heredodegenerative Disorders, Nervous System
Neoplasms by Histologic Type
Neoplasms, Nerve Tissue
Neoplastic Syndromes, Hereditary
Nervous System Diseases
Nervous System Neoplasms
Neurocutaneous Syndromes
Neurodegenerative Diseases
Neuromuscular Diseases
Peripheral Nervous System Diseases
Peripheral Nervous System Neoplasms
Fluorodeoxyglucose F18
Molecular Mechanisms of Pharmacological Action

ClinicalTrials.gov processed this record on May 25, 2016