NCT06926868 · Bristol-Myers Squibb
A Study of Izalontamab Brengitecan Versus Chemotherapy in Participants With Previously Untreated, Locally Advanced, Recurrent Inoperable, or Metastatic Triple-negative Breast Cancer Ineligible for Anti-PD(L)1 Drugs (IZABRIGHT-Breast01)
What this study is about
The purpose of this study is to assess the effectiveness and safety of iza-bren, a bi-specific antibody-drug conjugate against EGFR and HER3 with a topoisomerase inhibitor payload versus treatment of physician's choice (TPC) (paclitaxel, nab-paclitaxel, carboplatin plus gemcitabine, and capecitabine) for the treatment of first-line metastatic triple-negative breast cancer (TNBC) or estrogen receptor (ER)-low, human epidermal growth factor receptor 2 (HER2)-negative BC patients who are not candidates
View original scientific description
The purpose of this study is to assess the efficacy and safety of iza-bren, a bi-specific antibody-drug conjugate against EGFR and HER3 with a topoisomerase inhibitor payload versus treatment of physician's choice (TPC) (paclitaxel, nab-paclitaxel, carboplatin plus gemcitabine, and capecitabine) for the treatment of first-line metastatic triple-negative breast cancer (TNBC) or estrogen receptor (ER)-low, human epidermal growth factor receptor 2 (HER2)-negative BC patients who are not candidates
Interventions
DRUG
Iza-bren
Specified dose on specified days
DRUG
Nab-paclitaxel
Specified dose on specified days
DRUG
Paclitaxel
Specified dose on specified days
DRUG
Capecitabine
Specified dose on specified days
DRUG
Carboplatin
Specified dose on specified days
DRUG
Gemcitabine
Specified dose on specified days
Primary outcome measures
Progression-Free Survival (PFS)
Time frame: Approximately 31 months from first participant randomization
Assessed using Response Evaluation Criteriain Solid Tumors version 1.1 (RECIST v1.1) byblinded independent central review (BICR)
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
- Histologically or cytologically confirmed and documented locally-advanced, recurrent inoperable, or metastatic TNBC (ER \< 1%, PgR \< 1%, HER2 IHC 0, 1+, or 2+ with FISH negative for HER2 gene amplification) or ER-low, HER2-negative BC (ER and / or PgR 1% to 10%, HER2 IHC 0, 1+, or 2+ with FISH negative for HER2 gene amplification) per ASCO/CAP criteria, based on the most recently analyzed biopsy or other pathology specimen.
- Patients with recurrent disease must have experienced disease relapse at least 6 months after finishing their last therapy with curative intent.
- Patients with TNBC must be considered ineligible for 1L chemotherapy combination treatment with an anti-PD-1 or an anti-PD-L1 due to either one of the following criteria:.
- Investigator-determined ineligibility based on PD-L1 negative disease determined and documented prior to trial screening as part of SoC.
- Has experienced disease relapse between 6 to 12 months after the completion of (neo)ad
Where
- Hot Springs, Arkansas
- Cerritos, California
- Long Beach, California
- Los Angeles, California
- Newport Beach, California
- Stanford, California
- Aurora, Colorado
- Denver, Colorado
- Newark, Delaware
- Pembroke Pines, Florida
- Atlanta, Georgia
- Chicago, Illinois
And 26 more locations — see the full list below.
Collaborators
SystImmune Inc.
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 Jun 10, 2026 · Source of record for eligibility and locations