NCT07066189 · Yale University
Lifestyle, Exercise, And Nutrition (LEAN) Trial on Pathologic Complete Response in TNBC
What this study is about
The purpose of this study is to examine whether a nutrition and exercise program can improve pathologic full disappearance of disease signs (pCR) in women with triple-negative breast cancer (TNBC) receiving chemo-immunotherapy before surgery. Pathologic complete (pCR) response means that no cancer in the breast is seen after chemotherapy.
View original scientific description
The purpose of this study is to examine whether a nutrition and exercise program can improve pathologic complete response (pCR) in women with triple-negative breast cancer (TNBC) receiving chemo-immunotherapy before surgery. Pathologic complete (pCR) response means that no cancer in the breast is seen after chemotherapy.
Interventions
BEHAVIORAL
Exercise and Medical Nutrition
10, 30-minute sessions spread out over the course of their neoadjuvant therapy and in the weeks leading up to surgery. On weeks counseling is not scheduled an exercise session will be observed.
Primary outcome measures
Pathologic Complete Response (pCR)
Time frame: Post breast cancer surgery, an average of 6 months
Pathologic Complete Response (pCR) is defined as having no invasive residual disease in the breast or regional lymph nodes after completing neoadjuvant chemotherapy (ypT0 ypN0 or ypT0/is ypN0)
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
- Female aged 18 years or older.
- Have a diagnosis of stage II or III Triple Negative Breast Cancer (TNBC).
- Be scheduled to receive neoadjuvant chemo-immunotherapy.
- Be physically able to walk.
- Be able to complete forms, understand instructions and read in English.
- Agree to be randomly assigned to either group.
- Have clearance from oncologist to participate.
- Not exercising (less than 150 min/week).
- Not consuming more than 7 fruits and vegetable/week.
Exclusion criteria
- Having already started a 2nd chemotherapy cycle.
- Pregnancy or intention to become pregnant.
- Presence of dementia or major psychiatric disease.
- Recent (past year) stroke, myocardial infarction, or congestive heart failure.
Where
- New Haven, Connecticut
Collaborators
Breast Cancer Research Foundation
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 Oct 29, 2025 · Source of record for eligibility and locations