Hypotonia and Neurofibromatosis Type 1 (NF1) Glioma



Status:Recruiting
Conditions:Cancer, Other Indications
Therapuetic Areas:Oncology, Other
Healthy:No
Age Range:1 - 7
Updated:8/22/2018
Start Date:April 16, 2013
End Date:April 30, 2023
Contact:David Gutmann, M.D., Ph.D.
Email:gutmannd@wustl.edu
Phone:314-362-7379

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Hypotonia as a Clinical Predictor of Optic Pathway Glioma in Children With Neurofibromatosis Type 1

Currently, optic pathway gliomas (OPG) are detected based on abnormal findings made during
annual ophthalmologic exams. However, because these exams are annual, it is possible for
healthcare providers to miss the point at which a child's vision begins to decline
(potentially indicating an OPG). If at-risk children are screened for hypotonia early in
life, those children who are hypotonic may undergo magnetic resonance imaging (MRI) to
evaluate for OPG before they are showing ophthalmologic symptoms. This would enable
healthcare providers to discover vision loss earlier and treat symptomatic OPGs earlier,
thereby allowing us a better chance of preventing further vision loss in children with OPGs.


Inclusion Criteria:

- Patient must be seen at the St. Louis Children's Hospital NF Clinic

- Diagnosis of NF1

- Between 1 and 7 years of age, inclusive

- Diagnosed with hypotonia

- Legally authorized representative/guardian must be able to understand and willing to
sign an IRB-approved informed consent document

- Must have an MRI scan ordered by a treating physician

Exclusion Criteria:

- Normal tone on clinical exam

- Known allergy to gadolinium or the sedative, propofol, used during MRI

- Poor kidney function defined as a known renal disease or elevated BUN and creatine

- Requiring intubation for anesthesia
We found this trial at
1
site
1 Childrens Place
Saint Louis, Missouri 63110
Principal Investigator: David Gutmann, M.D., Ph.D.
Phone: 314-362-7379
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Saint Louis, MO
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