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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT05633654




Registration number
NCT05633654
Ethics application status
Date submitted
21/11/2022
Date registered
1/12/2022
Date last updated
27/06/2025

Titles & IDs
Public title
Study of Sacituzumab Govitecan-hziy and Pembrolizumab Versus Treatment of Physician's Choice in Patients With Triple Negative Breast Cancer Who Have Residual Invasive Disease After Surgery and Neoadjuvant Therapy (ASCENT-05/AFT-65 OptimICE-RD/GBG 119/NSABP B-63)
Scientific title
A Randomized, Open-label, Phase 3 Study of Adjuvant Sacituzumab Govitecan and Pembrolizumab Versus Treatment of Physician's Choice in Patients With Triple Negative Breast Cancer Who Have Residual Invasive Disease After Surgery and Neoadjuvant Therapy
Secondary ID [1] 0 0
2024-512279-10
Secondary ID [2] 0 0
GS-US-595-6184
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Triple Negative Breast Cancer 0 0
Condition category
Condition code
Cancer 0 0 0 0
Breast

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Sacituzumab govitecan-hziy (SG)
Treatment: Drugs - Pembrolizumab
Treatment: Drugs - Capecitabine

Experimental: Sacituzumab govitecan-hziy (SG) + Pembrolizumab - Participants will receive SG 10 mg/kg intravenously on Days 1 and 8 of 21-day cycles and pembrolizumab 200 mg intravenously on Day 1 of 21-day cycles for 8 cycles.

Treatment will be administered until a maximum of 8 cycles, local or distant disease recurrence, unacceptable toxicity, physician decision, consent withdrawal, or death.

Active comparator: Treatment of Physician's Choice (TPC): Pembrolizumab or Pembrolizumab + Capecitabine - Participants will receive one of the following TPC regimens determined prior to randomization:

* Pembrolizumab 200 mg intravenously on Day 1 of 21-day cycles for 8 cycles OR
* Pembrolizumab 200 mg intravenously on Day 1 of 21-day cycles and capecitabine 1000 mg/m\^2 orally twice daily on Days 1 through 14 of 21-day cycles for 8 cycles.

Treatment will be administered until a maximum of 8 cycles, local or distant disease recurrence, unacceptable toxicity, physician decision, consent withdrawal, or death.


Treatment: Drugs: Sacituzumab govitecan-hziy (SG)
Administered intravenously

Treatment: Drugs: Pembrolizumab
Administered intravenously

Treatment: Drugs: Capecitabine
Tablets administered orally

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Invasive Disease-free Survival (iDFS)
Timepoint [1] 0 0
Up to 60 months
Secondary outcome [1] 0 0
Overall Survival (OS)
Timepoint [1] 0 0
Up to 96 months
Secondary outcome [2] 0 0
Distant Disease-free Survival (dDFS)
Timepoint [2] 0 0
Up to 60 months
Secondary outcome [3] 0 0
Recurrence-free Survival (RFS)
Timepoint [3] 0 0
Up to 60 months
Secondary outcome [4] 0 0
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)
Timepoint [4] 0 0
First dose date up to 38 months plus 30 days
Secondary outcome [5] 0 0
Percentage of Participants Experiencing Laboratory Abnormalities
Timepoint [5] 0 0
First dose date up to 38 months plus 30 days
Secondary outcome [6] 0 0
Time to Worsening (TTW) of Quality of Life (QoL) Based on Functional Assessment of Cancer Therapy for Breast Cancer (FACT-B) Trial Outcome Index (TOI) Scores
Timepoint [6] 0 0
Up to 60 months

Eligibility
Key inclusion criteria
Key

* Age > 18 years, with residual invasive triple negative breast cancer (TNBC) in the breast or lymph nodes after neoadjuvant therapy and surgery:

* TNBC criteria for the study is defined as estrogen receptor (ER) and progesterone receptor (PR) = 10%, human epidermal growth factor receptor 2 (HER2)-negative per American Society of Clinical Oncology and College of American Pathologists (ASCO/CAP) guidelines (immunohistochemistry (IHC) and/or in situ hybridization (ISH)).
* Adequate excision and surgical removal of all clinically evident of disease in the breast and/or lymph nodes and have adequately recovered from surgery.
* Submission of both pre-neoadjuvant treatment diagnostic biopsy and resected residual invasive disease tissue.
* Eastern Cooperative Oncology Group (ECOG) performance status 0-1.
* Individuals must have received appropriate radiotherapy and have recovered prior to starting study treatment.
* Adequate organ function.

Key
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Stage IV (metastatic) breast cancer as well as history of any prior (ipsi- or contralateral) invasive breast cancer.
* Prior treatment with another stimulatory or coinhibitory T-cell receptor agent (eg, cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), OX-40, cluster of differentiation 137 (CD137), prior treatment with any HER2-directed agent, prior endocrine therapy for > 4 weeks or planned concurrent endocrine therapy while receiving on-study treatment.
* Evidence of recurrent disease following preoperative therapy and surgery.
* Prior treatment with topoisomerase 1 inhibitors or antibody-drug conjugates (ADCs) containing a topoisomerase inhibitor.
* Individuals with germline breast cancer gene (BRCA) mutations.
* Myocardial infarction or unstable angina pectoris within 6 months of enrollment or history of serious ventricular arrhythmia (ie, ventricular tachycardia or ventricular fibrillation), high-grade atrioventricular block, or other cardiac arrhythmias or Left ventricular ejection fraction (LVEF) of < 50%
* Active serious infections requiring anti-microbial therapy.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,VIC
Recruitment hospital [1] 0 0
Macarthur Cancer Therapy Centre, Campbelltown Hospital - Campbelltown
Recruitment hospital [2] 0 0
Lake Macquarie Private Hospital - Gateshead
Recruitment hospital [3] 0 0
Monash Medical Centre - Clayton
Recruitment postcode(s) [1] 0 0
2560 - Campbelltown
Recruitment postcode(s) [2] 0 0
2290 - Gateshead
Recruitment postcode(s) [3] 0 0
3168 - Clayton
Recruitment outside Australia
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Alabama
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Mannheim
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Stade
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Stuttgart
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Tuebingen
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Worms
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Wuppertal
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Ireland
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Caceres
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Valladolid
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Zaragoza

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Gilead Sciences
Address
Country
Other collaborator category [1] 0 0
Other
Name [1] 0 0
Alliance Foundation Trials, LLC.
Address [1] 0 0
Country [1] 0 0
Other collaborator category [2] 0 0
Other
Name [2] 0 0
NSABP Foundation Inc
Address [2] 0 0
Country [2] 0 0
Other collaborator category [3] 0 0
Other
Name [3] 0 0
GBG Forschungs GmbH
Address [3] 0 0
Country [3] 0 0

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Gilead Study Director
Address 0 0
Gilead Sciences
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Gilead Clinical Study Information Center
Address 0 0
Country 0 0
Phone 0 0
1-833-445-3230 (GILEAD-0)
Fax 0 0
Email 0 0
Contact person for scientific queries

Data sharing statement


What supporting documents are/will be available?

No Supporting Document Provided


Results publications and other study-related documents

No documents have been uploaded by study researchers.