A Study to Evaluate Circulating Tumor DNA (ctDNA) and Immunophenotyping as Potential Biomarkers in Patients Undergoing Regional Nodal Irradiation for Breast Cancer
Tab Title Description
Describes the nature of a clinical study. Types include:
- Observational study — observes people and measures outcomes without affecting results.
- Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
- Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
- Rochester, Minnesota: 19-003532
NCT ID: NCT04308720
Sponsor Protocol Number: 19-003532
About this study
The purpose of this study is to estimate the circulating tumor DNA (ctDNA)detection rate and mutational load in breast cancer patients with indications for regional nodal irradiation.
Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.
- Histologically confirmed primary or recurrent invasive breast cancer with plans for adjuvant radiation therapy at the Mayo Clinic.
- Oligometastatic breast cancer (≤ 3 sites of metastases) is permitted provided that the disease is managed with curative intent.
- Patients treated with lumpectomy or mastectomy.
- Patients must have indication for regional nodal irradiation.
- Age 18 or older.
- Willingness to provide informed consent and expresses understanding of this protocol and its requirements, risks, and discomforts.
- Patients must have completed their final breast surgery including re-excision of margins for invasive cancer and DCIS or chemotherapy within 90 days prior to registration but no sooner than 21 days prior to the initiation of radiation therapy (RT).
- Bilateral breast cancer is permitted.
- Positive or close margins is allowed.
- Other active malignancy ≤ 2 years prior to registration (exceptions: non-melanotic skin cancer or carcinoma-in-situ of the cervix).
- Pregnancy or lactation.
- Inability on the part of the patient to understand the informed consent to be compliant with the protocol.
Participating Mayo Clinic locations
Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.
|Mayo Clinic Location
Mayo Clinic principal investigator
Robert Mutter, M.D.
Open for enrollment
Cancer Center Clinical Trials Referral Office
Publications are currently not available
Study Results Summary
Not yet available
Supplemental Study Information
Not yet available