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Magnetic Resonance Imaging in Radiotherapy for Breast Cancer

Magnetic Resonance Imaging in RadiotheRapy fOr bReast Cancer (MIRROR): A Pilot Study of MRI Simulation

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05902507
Acronym
MIRROR
Enrollment
20
Registered
2023-06-15
Start date
2023-05-15
Completion date
2027-05-31
Last updated
2026-06-11

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

Conditions

Breast Cancer

Keywords

Imaging

Brief summary

This is a single-center, prospective pilot study evaluating feasibility and efficacy of incorporating magnetic resonance imaging (MRI) simulation into the planning of radiation treatment (RT) for breast cancer.

Detailed description

PRIMARY OBJECTIVE: I. To determine feasibility of acquiring MRI simulation prior to RT planning. EXPLORATORY OBJECTIVE: I. To determine change in target volume with MRI simulation compared to Computerized tomography (CT) simulation. OUTLINE: MRI simulation will be performed once at baseline. There is no follow up planned for study purposes. Patients will be followed as part of their regular clinical care.

Interventions

DIAGNOSTIC_TESTMagnetic Resonance Imaging Simulation

Radiographic Image Simulation

Sponsors

University of California, San Francisco
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

1. Participants with an Eastern Cooperative Oncology Group (ECOG) performance status \<=2 (or Karnofsky ≥\>=60%, see Appendix A). 2. Participants with the ability to understand and the willingness to sign a written informed consent document. 3. Participants may separately enroll on therapeutic clinical trials when they enroll on this trial. Note: All interventions on this protocol are standard of care, so enrollment on other therapeutic protocols is allowed at the discretion of the treating physician. 4. Patients must have pathologically confirmed invasive or in situ breast cancer. 5. Patients must have tumors in which adjuvant breast radiotherapy following breast conserving surgery is indicated, as determined by the treating physician. 6. Patients must be female. Note: Male patients are excluded due to the rarity of male breast cancer and difficulty in pursuing breast conserving surgery for male patients.

Exclusion criteria

1. Participants with a contraindication to MRI per the MRI checklist. 2. Patients with breast tumor or tumor bed not visualized at CT or MRI during RT planning.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of participants who completed scanDay of MR imaging (1 day)Feasibility feasibility of acquiring MRI simulation prior to RT planning is defined as successfully acquiring MRI data at the specified time point in a participant's radiotherapy (RT) care plan

Countries

United States

Contacts

CONTACTImani Dunn
Imani.Dunn@ucsf.edu877-827-3222
PRINCIPAL_INVESTIGATORLisa Singer, MD, PhD

University of California, San Francisco

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 12, 2026