Treatment using CAR-T cells targeting B7-H3 for triple-negative breast cancer
Official title: Study of Administration of T Cells Expressing B7-H3 Specific Chimeric Antigen Receptors and Containing the Inducible Caspase 9 Safety Switch in Subjects With Triple Negative Breast Cancer
Run by UNC Lineberger Comprehensive Cancer Center · NCT06347068 · Data updated 2026-11-12
This study is testing a new CAR-T cell treatment aimed at a specific target for people with hard-to-treat triple-negative breast cancer to see if it is safe and how much can be given.
Quick facts
| Phase | Phase 1 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 42 (estimated) |
| Sponsor | UNC Lineberger Comprehensive Cancer Center Academic / other |
| Drugs / interventions | radiation, CAR-T, chimeric antigen receptor, cyclophosphamide, fludarabine |
| Locations | 1 site (Chapel Hill, North Carolina) |
| Status | Recruiting |
| Started | June 27, 2024 |
| Main results expected | May 22, 2028 |
| Study ends | May 2030 |
| Registry record updated | July 28, 2026 |
| Trial ID | NCT06347068 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are adults aged 18 and older with histologically confirmed triple-negative breast cancer who have relapsed or are refractory to standard treatments.
✕Probably not a fit
Patients with symptomatic central nervous system involvement or multiple metastases requiring whole-brain radiation may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This phase 1, single-center, open-label study investigates the safety of escalating doses of chimeric antigen receptor T cells (CAR-T) targeting the B7-H3 antigen in patients with relapsed or refractory triple-negative breast cancer (TNBC). Eligible participants will undergo lymphodepletion with cyclophosphamide and fludarabine before receiving the experimental iC9-CAR.B7-H3 T cell therapy. The study employs a modified 3+3 design to determine the maximum tolerated dose (MTD) and establish a recommended phase 2 dose (RP2D) based on safety and manufacturing feasibility.
Why it matters
Potential benefit: If successful, this treatment could provide a novel therapeutic option for patients with difficult-to-treat triple-negative breast cancer.
How similar studies have gone: Other studies using CAR-T cell therapies have shown promising results in various cancers, indicating potential success for this novel approach in TNBC.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: Unless otherwise noted, subjects must meet all of the following criteria to participate in in all phases of the study: 1. Written informed consent and Health Insurance Portability and Accountability Act (HIPAA) authorization for release of personal health information explained to, understood by and signed by the subject or legally authorized representative. 2. Age ≥ 18 years at the time of consent. 3. Karnofsky score of \> 60% (see APPENDIX VI- Karnofsky Scale)) 4. Histologically confirmed TNBC (ER-, PR-, HER2-negative) 1. ER- and PR-negative: defined as \< 1% staining by immunohistochemistry (IHC) 2. HER2-negative: defined as IHC 0-1+ or fluorescence in situ hybridization (FISH) ratio \< 2.0 Exclusion Criteria: 1. Patients with a history of symptomatic CNS involvement or multiple metastases requiring whole-brain radiation. 2. Subjects with a prior or concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial. 3. Subject does not have a measurable and or evaluable disease as defined by RECIST 1.1
Where it's running
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University of North Carolina
Chapel Hill, North Carolina, United States Recruiting
Study contacts
- Principal investigator: Yara Abdou, MD — UNC Lineberger Comprehensive Cancer Center
- Study coordinator: Caroline Babinec
- Email: UNCImmunotherapy@med.unc.edu
- Phone: 919-445-4208
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.