Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 and up

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.

More Breast Cancer trials

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment42 (estimated)
SponsorUNC Lineberger Comprehensive Cancer Center
Academic / other
Drugs / interventionsradiation, CAR-T, chimeric antigen receptor, cyclophosphamide, fludarabine
Locations1 site (Chapel Hill, North Carolina)
StatusRecruiting
StartedJune 27, 2024
Main results expectedMay 22, 2028
Study endsMay 2030
Registry record updatedJuly 28, 2026
Trial IDNCT06347068 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

  • University of North Carolina
    Chapel Hill, North Carolina, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.