Glioblastoma Clinical Trial
Official title:
4π Radiotherapy for Recurrent Glioblastoma Multiforme: A Feasibility Trial
Verified date | February 2019 |
Source | Jonsson Comprehensive Cancer Center |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This pilot clinical trial studies the feasibility of palliative 4pi radiotherapy in treating patients with glioblastoma multiforme that has come back after standard chemoradiation. A new radiotherapy delivery planning system, called 4pi radiotherapy, may help improve radiation delivery by improving dose coverage to the treatment target, while reducing the dose to surrounding normal tissues.
Status | Completed |
Enrollment | 10 |
Est. completion date | June 20, 2018 |
Est. primary completion date | June 20, 2018 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Histologically confirmed primary glioblastoma multiforme (GBM) - Patient must have previously undergone standard chemoradiation- 59.4 Gy (1.8 Gy/fraction) or 60 Gy (2.0 Gy/fraction) with concurrent and adjuvant Temodar (temozolomide) - Patient must be diagnosed with recurrent GBM either with biopsy or radiographically - Karnofsky Performance Status (KPS) >= 70 - Ability to understand and willingness to sign a written informed consent - If a woman is of childbearing potential, a negative serum pregnancy test must be documented; women of childbearing potential must agree to use adequate contraception (hormonal or barrier method of birth control; or abstinence) for duration of study treatment and for up to 4 weeks following the study treatment - For the purpose of this study, all women are considered to be of childbearing potential unless they are post-menopausal at least 1 year since last menses), biologically sterile, or surgically sterile (i.e. hysterectomy, bilateral oophorectomy or tubal ligation) Exclusion Criteria: - Patients with active infection - Patients with KPS < 70 and/or unable to tolerate potentially longer treatment times - Refusal to sign informed consent - Pregnant women, or women of childbearing potential who are sexually active and not willing/able to use medically acceptable forms of contraception for the entire study period and for up to 4 weeks after the study treatment - Note: Concurrent and/or adjuvant chemotherapy does not make a patient ineligible; participation in a concurrent treatment protocol does not make a patient ineligible |
Country | Name | City | State |
---|---|---|---|
United States | UCLA / Jonsson Comprehensive Cancer Center | Los Angeles | California |
Lead Sponsor | Collaborator |
---|---|
Jonsson Comprehensive Cancer Center | National Cancer Institute (NCI) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Accuracy of dose delivery | The accuracy of dose delivery by 4pi will be compared to standard procedures. Standard quality assurance (QA) procedures will be employed to validate the delivery accuracy of 4pi. Specifically, a MatriXX phantom will be employed to measure the dose in both the coronal and sagittal planes and compared to calculation. Patients with QA results showing gamma passing rates (using 3% and 3 mm dose difference and distance to agreement criteria, respectively) less than 90% in either plane or a maximum single gamma value greater than 2 will not be treated until the source of error is corrected. | Up to 6 weeks | |
Primary | Normal tissue dose volume | Statistics will be compared between 4pi and standard planning. Specifically, dose to organs-at-risk (OAR) and planning target volume (PTV) coverage will be compared to assess for improved OAR sparing and improved PTV coverage with 4pi planning. | Up to 6 weeks | |
Primary | Patient comfort with treatment time, determined by a patient-completed questionnaire completed at the end of each fraction | Up to 10 days |
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