Breast Cancer, Early-Onset
Conditions
Keywords
Triple Negative Breast Cancer
Brief summary
Primary Objective: 1\) To examine the impact of Circulating tumor DNA (ctDNA) (expressed as mean tumor molecules per ml) on treatment decision making in patients with early stage breast cancer after neoadjuvant therapy and surgery Secondary Objectives: 1. Understand ctNDA kinetics in the neoadjuvant and adjuvant setting 2. To identify any associations between clinical staging and measurable ctDNA
Detailed description
To determine whether early detection of Circulating tumor DNA (ctDNA) after neoadjuvant systemic therapy help tailor adjuvant therapy and reduce risk of relapse in patients who are at increased risk of recurrence. Studies have shown the presence of ctDNA is associated with increased risk of relapse, it is unclear how adjuvant therapy and its effect of ctDNA impacts the risk of relapse. There is very limited data on the role of ctDNA monitoring and response to neoadjuvant/adjuvant systemic therapy in patients with human epidermal growth factor receptor 2 (HER2 ) positive breast cancer. Natera, Inc. (NASDAQ: NTRA) has developed a minimal residual disease (MRD) assay that sequences tumor tissue to identify a unique signature of tumor mutations, then customizes a personalized PCR assay for each participant, targeting the top 16 clonal mutations found in the tumor (Signatera™). Signatera is intended to detect and quantify how much cancer is left in the body, to improve prognosis and help optimize treatment decisions, based on the tissue-informed testing of mutations. If the ctDNA blood test is positive, change in treatment can be made after discussion with the participant and treating provider. If the decision is for observation (Observation defined for TNBC: No adjuvant chemotherapy. Participants may complete checkpoint inhibitor from neoadjuvant setting. HER2 positive breast cancer: complete 12 months of anti-HER2 therapy, which was initiated in neoadjuvant setting), participants in the observation arm, will be monitored for ct-DNA re-emergence and systemic therapy can be added at the time of ctDNA re-emergence. If the decision is made to institute systemic therapy based on the ctDNA detection, participants will be monitored with ctDNA at 60days, 3 months, 6 months, 9 months, 12 months, 18months and 24months from surgery. If ctDNA is negative, there will be no change in therapy and participants can continue on observation arm (Observation defined for TNBC: No adjuvant chemotherapy. Participants may complete checkpoint inhibitor from neoadjuvant setting. HER2 positive breast cancer: complete 12 months of anti-HER2 therapy, which was initiated in neoadjuvant setting). Participants in the observation arm will be monitored for ct-DNA re-emergence and systemic therapy can be added at the time of ctDNA re-emergence. The treating oncologist will complete a questionnaire to determine how ctDNA impacts treatment decisions in the adjuvant setting once the results from the fourteen day ctDNA is available and at the time of ctDNA re-emergence. Participants will complete participant questionnaire at 3 months, 6months,12months and 24 months post-operatively. Participants will be followed up for five years.
Interventions
DRUGNeoadjuvant chemotherapy administered before surgical extraction of a tumor
SignateraTM is a custom-built circulating tumor DNA (ctDNA) test for treatment monitoring and molecular residual disease (MRD) assessment in patients previously diagnosed with cancer. The Signatera methodology is personalized and tumor-informed, providing each individual with a customized blood test tailored to fit the unique signature of clonal mutations found in that individual's tumor tissue. This maximizes accuracy for detecting the presence or absence of disease in a blood sample, even at levels down to a single tumor molecule in a tube of blood. Signatera is intended to detect and quantify how much cancer is left in the body, to improve prognosis and help optimize treatment decisions, based on the tissue-informed testing of mutations.
OTHERObservational
In participants, undetectable ctDNA at fourteen days will be in the observation arm (observation defined as TNBC: No adjuvant chemotherapy. Participants may complete checkpoint inhibitor from neoadjuvant setting; HER2 positive BC: Completed one year of anti-HER2 therapy from the neoadjuvant setting). No investigational drugs will be used. Samples of ctDNA will be collected at time points described in the study arm.
Sponsors
Rutgers, The State University of New Jersey
Study design
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Intervention model description
A pilot study to evaluating the role of ctDNA in patients with Stage II-III triple negative breast cancer and HER2 positive breast cancer. Participants who have ctDNA post neoadjuvant therapy and surgery will be initiated on adjuvant systemic therapy per treating physician's choice. ctDNA will be monitored up to 24 months to study ctDNA kinetics. Signatera is intended to detect and quantify how much cancer is left in the body, to improve prognosis and help optimize treatment decisions, based on the tissue-informed testing of mutations.
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Participants with a diagnosis of clinical Stage II-III triple negative and/or HER2 positive breast cancer * Age ≥ 18 years * Estimated life expectancy of at least twelve months * Participant must be eligible for neoadjuvant systemic therapy per treating physician * Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 * Able to provide signed and dated informed consent form * Must have ctDNA at the time of screening to be eligible for the study * Participants enrolled on other systemic therapy trials may be eligible to participate in the study after discussion with principal investigator * Be willing to present for medical exams and blood draws as scheduled per protocol
Exclusion criteria
* Evidence of metastatic breast cancer * Any other concurrent malignancy * Prior malignancies (except non-melanoma skin cancers, and the following in situ cancers: bladder, gastric, colon, endometrial, cervical/dysplasia, melanoma, or breast) unless a complete remission was achieved at least one year prior to study entry * Participant is pregnant * Serious concomitant systemic disorder that would compromise the safety of the participant or compromise the participant's ability to complete the study, at the discretion of the investigator * Bone marrow transplant or other organ transplant recipient * History of psychiatric illness or social situations that would limit compliance with study requirements * Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Detectable Circulating tumor DNA ctDNA | Five Years | Participants with detectable ctDNA fourteen days post-operatively will have the option to change adjuvant therapy after discussion with primary provider. SignateraTM is intended to detect and quantify how much cancer is left in the body, to improve prognosis and help optimize treatment decisions, based on the tissue-informed testing of mutations. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Levels of Detectable Circulating tumor DNA ctDNA | Five Years | Participants on observation or change in adjuvant therapy will continue to be monitored with ctDNA at 60 days, 3 months, 6 months, 9 months, 12 months, 18months and 24months from surgery. |
Countries
United States
Contacts
PRINCIPAL_INVESTIGATORMridula George, MD
Rutgers Cancer Institute of New Jersey
Outcome results
None listed