Purpose

This study is being done to see if losartan affects the chances of developing radiation-induced heart failure in patients who are receiving radiation therapy as part of standard of care treatment for breast cancer. The interventions involved in this study are: - Losartan - Radiation Therapy (standard of care)

Conditions

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
Female
Accepts Healthy Volunteers
No

Inclusion Criteria

  • >18 years of age - Non-metastatic Breast Cancer patients who are scheduled to receive conventional left breast/chest wall RT inclusive of treatment to the internal mammary lymph nodes (IMNs) - Prior chemotherapy is permitted - Patients must have Left-sided Breast Cancer - Ability to understand and the willingness to sign a written informed consent document - No contraindication to MRI

Exclusion Criteria

  • Person who is pregnant or breastfeeding. - Patient unable to swallow oral medication. - Patients receiving any other investigational agent will not be excluded from study eligibility, unless the patient is already enrolled in an interventional study evaluating cardiac toxicity - Patients already receiving ACE/ARBs. - Patients with a history of allergic reactions to Losartan biosimilars.

Study Design

Phase
Early Phase 1
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Radiation Therapy and Losartan
Participants will receive radiation therapy 5x weekly over 1-6 weeks. Participants will receive Losartan 1x daily during radiation therapy and for up to 6 months afterward then be followed for 1 year
  • Drug: Losartan
    Taken Orally
    Other names:
    • Losartan Potassium
  • Radiation: Radiation Therapy
    Photon Radiation Therapy

Recruiting Locations

Massachusetts General Hospital Cancer Center
Boston, Massachusetts 02114
Contact:
Rachel Jimenez, MD
617-726-8651
RBJIMENEZ@PARTNERS.ORG

More Details

Status
Recruiting
Sponsor
Massachusetts General Hospital

Study Contact

Rachel Jimenez, MD
617-726-8651
rbjimenez@partners.org

Detailed Description

This is a pilot study examining whether losartan prevents radiation therapy-induced myocardial fibrosis (thickening of the heart tissue), which can cause heart failure, in breast cancer patients receiving radiation therapy. Losartan is an U.S. Food and Drug Administration (FDA) approved drug used to treat hypertension (high blood pressure) and heart failure. The U.S. Food and Drug Administration (FDA) has not approved losartan for use in the treatment of breast cancer. The FDA has approved radiation therapy as a treatment option for breast cancer. The research study procedures include: screening for eligibility and study treatment including evaluations and follow up visits. It is expected participants will be on the study for 1 year. It is expected that about 10 people will take part in this research study.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.