This trial is active, not recruiting.

Condition chondrosarcoma
Treatment proton beam therapy
Phase phase 2
Sponsor M.D. Anderson Cancer Center
Start date April 2006
End date April 2017
Trial size 15 participants
Trial identifier NCT00496522, 2004-0915, NCI-2012-01510


The goal of this clinical research study is to learn if proton beam therapy, with or without photon beam radiation therapy, is effective in the treatment of skull base chondrosarcoma. The safety of this treatment will also be studied.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Endpoint classification safety/efficacy study
Intervention model single group assignment
Masking open label
Primary purpose treatment
Proton Beam Therapy - A total dose of up to 70 CGE given at 2.0 CGE per daily fraction for 35 fractions.
proton beam therapy
A total dose of up to 70 CGE given at 2.0 CGE per daily fraction for 35 fractions.

Primary Outcomes

Time to Local Recurrence
time frame: Baseline to local recurrence (evaulation every six months during estimated 5 year study)

Eligibility Criteria

Male or female participants of any age.

Inclusion Criteria: 1. Pathologically confirmed Grade 1-3 chondrosarcoma of the skull base 2. Contrast enhanced postop MRI or CT if there is clinical contraindication for MRI of the skull base obtained with 90 days of study registration at M. D. Anderson 3. The patient has been assessed by MDACC skull base surgeons to have undergone maximal surgical debulking of disease 4. Karnofsky Performance status greater than or equal to 60 5. Signed informed consent Exclusion Criteria: 1. Previous irradiation of the skull base 2. Documented evidence of disseminated metastatic disease

Additional Information

Official title Phase II Evaluation of Proton Beam Therapy for Skull Base Chondrosarcoma
Principal investigator David Grosshans, MD,PHD
Description Patients who have skull base chondrosarcoma require complicated treatment because of its challenging location and nearness to critical structures within the brain. Pathology will be confirmed prior to discussion of the study. If you are found to be eligible to take part in this study, you will receive proton beam therapy, no sooner than 2 weeks after the last surgery to remove tumor. You will receive proton beam therapy once a day for about 35 treatments (7 weeks). Treatment will be given for 5 days in a row each week (except for Saturdays, Sundays, and holidays) at the Proton Center in Houston. The whole process should take up to 1 hour each day. If your doctor feels it is necessary, the proton beam therapy may be combined with standard photon therapy. After the proton beam, and possibly photon beam, therapy, you will be asked to come in for study follow-up visits every year, until the study is completed. At these visits, you will have magnetic resonance imaging (MRI) scans, blood draws (less than 1 teaspoon) to monitor your pituitary function, and neuropsychological testing. For the neuropsychological testing, you will be interviewed and tested by a neuropsychologist to evaluate your memory, fluency (the ability to talk and form words) complex thinking ability, planning ability, and coordination. These tests could last from 1-2 hours. You will also have eye exams performed by an ophthalmologist from MD Anderson and hearing exams. It is anticipated that it will take about 5 years to complete this study. This is an investigational study. The proton beam center and its treatment are approved by the FDA for patient use. A total of up to 15 patients will take part in this study. All will be enrolled at MD Anderson.
Trial information was received from ClinicalTrials.gov and was last updated in July 2015.
Information provided to ClinicalTrials.gov by M.D. Anderson Cancer Center.