NCT04368702 · Brigham and Women's Hospital
CONFIRM: Magnetic Resonance Guided Radiation Therapy
(CONFIRM)
What this study is about
This research is being done to determine the safety and feasibility of using a type of radiation guided by magnetic resonance imaging (MRI) and chemotherapy to treat patients with gastric and breast cancer. The name of the radiation machine involved in this study is the MRIdian Linear Accelerator.
View original scientific description
This research is being done to determine the safety and feasibility of using a type of radiation guided by magnetic resonance imaging (MRI) and chemotherapy to treat patients with gastric and breast cancer. The name of the radiation machine involved in this study is the MRIdian Linear Accelerator.
Interventions
RADIATION
Viewray MRIdian® Linac
MR-image guided radiation will be administered per disease site standards.
Primary outcome measures
Number of Patients and delivering MR-image guided radiation-Phase I
Time frame: 5 weeks
Master feasibility study evaluating MR-image guided radiation. Feasibility is defined as Enrolling patients and delivering MR-image guided radiation on the MR Linac
Tumor Assessment with MR Guidance-Phase I
Time frame: 5 weeks
Master feasibility study evaluating MR-image guided radiation. Feasibility is defined as assessing tumor using MR guidance before, during and after MR-guided treatment patient.
Patient reported outcomes (PROMs) -Phase II
Time frame: 1 year
PROMs are collected at patient visits. PROMs will be evaluated using the Patient-Reported Outcomes Measurement Information System (PROMIS). The PROMIS Global-10 metric collects information on symptoms and quality of life.
1-year tumor control-Phase II
Time frame: 1 year
Tumor response 1 year after radiation treatment
Rate of Pathologic complete response-Gastric
Time frame: 1 year
full pathological review of surgical specimen according to the AJCC Staging Classification, 8th edition. pCR will be defined as the absence of any viable tumor cells within the pathologic specimen.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Participants must have histologically or cytologically confirmed malignancy requiring radiation
- Age 18 years of older
- ECOG performance status ≤2 (Karnofsky ≥60%, see Appendix A)
- Ability to understand and the willingness to sign a written informed consent document.
- Any further criteria listed in the specific disease site cohort
Exclusion criteria
- History of allergic reactions attributed to gadolinium-based IV contrast \-- Note: If patient will not receive contrast, this is not applicable and kidney function will not affect eligibility
- Severe claustrophobia or anxiety
- Participants who cannot undergo an MRI
- Any other exclusion criteria listed in the specific disease site cohort
Where
- Boston, Massachusetts
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Feb 9, 2026 · Source of record for eligibility and locations