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Grid Therapy for Tumors of the Head, Neck, Thorax, Abdomen, Pelvis and Extremities.

Spatially Fractionated Radiation (Grid) Therapy for Tumors of the Head & Neck, Thorax, Abdomen, Pelvis, and Extremities

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04549246
Enrollment
83
Registered
2020-09-16
Start date
2020-06-18
Completion date
2024-06-01
Last updated
2024-07-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Radiation Therapy Complication, Tumor Abdomen, Tumor Neck

Brief summary

This study is an observational registry study evaluating the clinical outcomes of grid therapy. Subjects will be screened at outpatient clinic visit appointments and interested qualified subjects will be consented and offered participation in this study. Once consent has been obtained, baseline adverse event and QOL data will be collected and subjects will undergo grid therapy and follow-up at 2-4 weeks (for toxicity), and 3-6 months (for toxicities and radiographic control) then per clinical discretion up to 1 year. Patients will be evaluated according to the physician's standard practice and discretion. Patient data will be drawn from the patients' medical records and reported by means of a web-based electronic data collection (EDC) system. Patients will be considered on study until 60 months of observation has occurred, withdrawal of consent, lost to follow-up, or study closure. See below for the clinical visit flowchart for data collected at baseline and standard clinic visits.

Interventions

RADIATIONSpatially Fractionated Radiation (GRID) Therapy

Grid therapy allows for high doses of radiation to be delivered over several spatially distinct, small regions. This permits regions of very high dose to a large tumor away from critical structures, which could be beneficial in both palliative and definitive treatments. Additionally, allowing for high doses to be delivered could pose a benefit for radioresistant histologies.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with tumors of the head and neck, thorax, abdomen, pelvis, and extremities. * Age ≥ 18 years. * Histological confirmation of oncologic diagnosis. * Completed oncologic imaging (per discretion of treating physician) * ECOG Performance Status 0-3 * Ability to complete questionnaire(s) by themselves or with assistance. * Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study). * Provide informed written consent.

Exclusion criteria

* Any of the following because this study involves an agent that has known genotoxic, mutagenic and teratogenic effects: * Pregnant women * Nursing women * Women of childbearing potential who are unwilling to employ adequate contraception * Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens. * Immunocompromised patients and patients known to be HIV positive and currently receiving antiretroviral therapy. NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial. * Uncontrolled inter-current illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.

Design outcomes

Primary

MeasureTime frameDescription
Local/radiographic control rate3-6 monthsAssessed according to Response Evaluation Criteria In Solid Tumors (RECIST), a standard system to measure how cancer responds to different treatments, including chemotherapy, immunotherapy, and radiation therapy. The local/radiographic control rate will be estimated overall and by palliative/definitive patient status in patients treated with grid therapy.

Secondary

MeasureTime frameDescription
Overall survival after grid therapythrough study completion, approximately 5 yearsOverall survival is defined as the length of time from either the date of diagnosis or the start of treatment that patients diagnosed with the disease are still alive.
Local/regional progression after grid therapythrough study completion, approximately 5 yearsAssessed by the number of patients to have local and/or regional progression after grid therapy. Local progression is defined as cancer recurring in the same place as the original cancer or very close to it. Regional progression is defined as cancer/tumor that has grown or spread into lymph nodes or tissues near the original cancer.
To describe the adverse event profile (acute and late) of grid therapy by assessment of grade 3 or higher adverse eventsthrough study completion, approximately 5 yearsAssessed by the number of grade 3 or higher adverse events (acute and late) that occur after grid therapy. Adverse events will be defined based on National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5 criteria.
Distant disease controlthrough study completion, approximately 5 yearsDistant disease control is defined as cancer that has spread from the original (primary) tumor to distant organs or distant lymph nodes.
Planning and delivery of grid therapy.5 yearsTotal amount of time taken for planning and delivery of grid therapy
Recurrence ratethrough study completion, approximately 5 yearsNumber of patients to have tumor recurrence after grid therapy

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026