A Prospective, Phase II Trial Using ctDNA to Initiate Post-operation Boost Therapy After NAC in TNBC
Apollo
1 other identifier
interventional
460
1 country
1
Brief Summary
Positive circulating tumor DNA(ctDNA) status is associated with worse prognosis in breast cancer, especially triple-negative breast cancer(TNBC). Our trial aims to improve the outcome of TNBC patients by using ctDNA to identify patients with high relapse risk. ctDNA positive patients will be randomized to receive boost therapy or standard therapy indicated in NCCN guidelines after NAC.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Aug 2020
Longer than P75 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 3, 2020
CompletedStudy Start
First participant enrolled
August 3, 2020
CompletedFirst Posted
Study publicly available on registry
August 6, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2032
February 21, 2023
February 1, 2023
7 years
August 3, 2020
February 16, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
5 years Disease free survival(DFS)
From diagnosis to 5yrs or DFS events; To determine 5-year disease free survival in ctDNA positive participants with confirmed triple negative breast cancer (TNBC) treated with a boost therapy or standard of care following preoperative chemotherapy
60 months
Secondary Outcomes (8)
5 years overall survival(OS)
60 months
pathological complete remission(pCR) rate
12 months
brain metastasis rate
60 months
objective response rate(ORR)
12 months
Number of Patients with Adverse Events as a Measure of Safety and Tolerability
12 months
- +3 more secondary outcomes
Study Arms (4)
A
EXPERIMENTALctDNA positive, non-pCR Intervention: Tislelizumab(anti-PD1 antibody) combined with capecitabine
B
ACTIVE COMPARATORctDNA positive, non-pCR Intervention: capecitabine(standard care)
C
EXPERIMENTALctDNA positive, pCR Intervention: capecitabine
D
NO INTERVENTIONFollow up(standard care)
Interventions
Eligibility Criteria
You may qualify if:
- Must have histologically or cytologically confirmed triple negative (ER-/PR-/HER2-) invasive breast cancer, clinical stage II-III at diagnosis (AJCC 6th edition) based on initial evaluation by physical examination and/or breast imaging prior to study registration.ER and PR will be considered negative if ≤ 1% of cells stain weakly positive. HER2 will be considered negative if scored 0 or 1+ by immunohistochemistry (IHC) or 2+ by IHC associated with a fluorescence in situ hybridization (FISH) ratio of \< 2.0 or \< 6 copies per cell.
- Must receive preoperative (neoadjuvant) chemotherapy. NOTE: Acceptable preoperative regimens include those recommended by NCCN guidelines. Participants who received preoperative therapy as part of a clinical trial may enroll.
- ctDNA positive at baseline, after NAC or after surgery
- Eastern Cooperative Oncology Group (ECOG) performance status 0, 1 or 2
- Written informed consent to provide research blood samples and tumor samples
- Patients must be willing to have frequent blood tests (every 3 months ) and receive a 12 month course of tislelizumab if randomised to tislelizumab treatment on ctDNA detection
- No evidence of distant metastatic disease on staging scans conducted at the time of diagnosis
You may not qualify if:
- Previously participated in other interventional trials
- Previous malignancy within 3 years of breast cancer diagnosis
- Pregnancy or breastfeeding
- No written consent
- Unable to receive standard NAC and subsequent radiotherapy(if needed)
- Active autoimmune disease
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Sunyat-sen Memorial Hospital
Guandong, Guangdong, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Qiang Liu, MD
Sunyat-sen Memorial Hospital
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Doctor
Study Record Dates
First Submitted
August 3, 2020
First Posted
August 6, 2020
Study Start
August 3, 2020
Primary Completion (Estimated)
August 1, 2027
Study Completion (Estimated)
August 1, 2032
Last Updated
February 21, 2023
Record last verified: 2023-02