BN-Brachyury, Entinostat, Adotrastuzumab Emtansine and M7824 in Advanced Stage Breast Cancer (BrEAsT)
Status:
Completed
Trial end date:
2021-10-22
Target enrollment:
Participant gender:
Summary
Background:
Breast cancer is the second most common cause of U.S. cancer deaths in women. Immunotherapy
drugs use a person s immune system to fight cancer. Researchers want to see if a new
combination of immunotherapy drugs can help treat breast cancer that has gone to places in
the body outside of the breast (metastasized).
Objective:
To learn if a new combination of immunotherapy drugs can shrink tumors in people with
metastatic breast cancer.
Eligibility:
Adults 18 and older who have been diagnosed with metastatic breast cancer, such as Triple
Negative Breast Cancer (TNBC) or ER-/PR-/HER2+ Breast Cancer (HER2+BC)
Design:
Participants will be screened with:
medical history
physical exam
disease confirmation (or tumor biopsy)
tumor scans (computed tomography, magnetic resonance imaging, and/or bone scan)
blood and urine tests
electrocardiogram (measures the heart s electrical activity)
echocardiogram (creates images of the heart).
Participants will be assigned to 1 of 3 groups. The drugs they get will be based on the group
they are in. Drugs are given in cycles. Each cycle = 3 weeks. Participants will be seen in
clinic every 3 weeks, prior to the start of a new cycle. At each visit, participants will
have an clinical exam, have blood drawn and will be asked about any side effects. They will
repeat the screening tests during the study. New scans, like a CT scan, will be done every 6
weeks to see if the treatment is working.
All participants will get BN-Brachyury. It is 2 different vaccines - a prime and a boost.
First the priming vaccines, called MVA-BN-Brachyury help to jump start the immune system.
Next the boosting vaccines, called FPV-Brachyury help to keep the immune system going. They
are injected under the skin during different cycles.
All participants will get M7824 (also known as Bintrafusp alfa ), which is an immunotherapy
drug. Some participants will get a commonly used drug is HER2+ breast cancer called
adotrastuzumab emtansine (also known as T-DM1DM1 or kadcyla). For both, a needle is inserted
into a vein to give the drugs slowly.
Some participants will take Entinostat weekly by mouth. It is in tablet form. Participants
will keep a pill diary.
Participants will continue on their assigned treatment until their cancer grows, they develop
side effects or want to stop treatment. About 28 days after treatment ends, participants will
have a follow-up visit or a telephone call. Then they will be contacted every 3 months for 1
year, then every 6 months for 1 year. They may have more tumor scans or continue treatment.