Clinical trial · Interventional
Laboratory-Treated T Cells After Second-Line Chemotherapy in Treating Patients With HER2/Neu-Negative Metastatic Breast Cancer
A Phase II Study of Anti-CD3 x Anti-HER2/Neu Armed Activated T Cells for Patients With HER2/Neu (0, 1+ or 2+) Metastatic Breast Cancers.
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
RATIONALE: Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Treating a patient's T cells in the laboratory may help the T cells kill more tumor cells when they are put back in the body. Giving laboratory-treated T cells after chemotherapy may be an effective treatment for breast cancer. PURPOSE: This phase II trial is studying how well giving laboratory-treated T cells after second-line chemotherapy works in treating patients with HER2/neu-negative metastatic breast cancer.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer | Malignant Breast Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (3)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Cyclophosphamide | Drug | Cyclophosphamide | ALIAS |
| HER2Bi-armed activated T cells | Biological | — | UNRESOLVED |
| Laboratory biomarker analysis | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- HER2Bi-armed activated T cells/Cyclophosphamide/biomarker
- description
- HER2Bi-armed activated T cells Immediately after pheresis, the lymphocytes are activated with soluble monoclonal anti-CD3 antibody, which cross-links the CD3 receptors on T cells and activates them. Cyclophosphamide After recovering from the last cycle of chemotherapy (approx. two-four weeks) patients will be re-staged. If there are no residual chemotherapy related toxicities, they will be given lymphodepleting chemotherapy consisting of one dose of Cyclophosphamide 1.0 gm/m2 on day -7. Appropriate anti-emetics will be given as pre-medications before the dose of Cyclophosphamide Laboratory biomarker analysis The association between the \[18F\]-FDG PET/CT assessments (percent changes from baseline in SUVpeak) and immunologic biomarker changes as well as tumor response will be explored.
- interventionNames
- Biological: HER2Bi-armed activated T cells
- Drug: Cyclophosphamide
- Other: Laboratory biomarker analysis
Primary outcomes (1)
- measure
- Number of Participant Who Were Alive Without Progression at 4 Months
- timeFrame
- At the 4-month follow-up
- description
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 120 Years
Show eligibility criteria text
Inclusion:
* Metastatic Breast Cancer. Histologically confirmed breast cancer with evidence of metastatic disease (need not be biopsy proven) or locally, advanced unresectable disease.
* Patients with 0-2+ HER2 expression as determined by immunohistochemistry staining and/or FISH ratio \<2.0, with the above pathologic criteria will be eligible.
* Hormone Therapy. Patients on prior hormonal therapy are eligible. Hormonal therapy will be stopped 2 weeks prior to leukopheresis. Hormone therapy may be restarted after leukopheresis
* Patients may have received any number of prior lines of chemotherapy providing Leukopheresis is done when the lymphocyte count has recovered to ≥500 cells/mm3 and there are no residual chemotoxicities that would prevent leukopheresis.
* Patients who have received Radiotherapy are eligible providing Leukopheresis is done at least 4 weeks after radiation to the axial skeleton.
* Patients who have received prior biological agents are eligible.
* Patients with measurable and non-measurable disease are eligible.
* Age \> or = to 18 years
* ECOG 0-1 or Karnofsky \> or = to 70%
* Life expectancy \> or = to 3 months
* Patients with treated brain metastases are eligible
* Required Laboratory Data Granulocytes \> 1,200/mm3 Platelet count \> 50,000/μl Hemoglobin ≥ 8 gm/dl BUN \< 1.5 times normal Serum creatinine \< 1.8 mg/dl Creatinine Cl ≥50 ml/mm (can be calculated utilizing the Cockcroft \& Gault equation: Creatinine Clearance (mL/min) = {(140 - Age)} x Wt \[kg\] (x 0.85 if Female}/ {72 x SCr \[mg/dL\]} Bilirubin \< 1.5 times normal ALT, AST and alkaline phosphatase \< 5 times upper normal Negative HIV Negaitve Hepatitis B surface antigen Negative Hepatitis C serology LVEF ≥ 45% at rest (MUGA or ECHO) PFT-FEV1, DLCO, and FVC ≥ 50% of predicted
* Negative serum test for pregnancy, unless male, prior hysterectomy, tubal ligation, or postmenopausal. (Note: postmenopausal is defined as age\>55 with amenorrhea for \>1 year or age \<55 years with amenorrhea for 2 years and FSH level within postmenopausal range of institutional parameters; patients requiring FSH level to determine menopausal status need not have this performed and may choose to proceed with serum pregnancy testing.)
Exclusion Criteria
* Patients with HER2 overexpression by immunohistochemistry (IHC) or overamplification by FISH are not eligible and are defined as follows: IHC staining of 3+ (uniform, intense membrane staining of \> 30% of invasive tumor cells), a fluorescent in situ hybridization (FISH) result of more than six HER2 gene copies per nucleus or a FISH ratio (HER2 gene signals to chromosome 17 signals) of more than 2.0.
* Patients with a history of another malignancy within 5 years of study entry are not eligible (except basal cell skin carcinoma and carcinoma-in-situ of the cervix).
* No serious medical or psychiatric illness which prevents informed consent or intensive treatment is allowed.
* Patients will be ineligible for treatment on this protocol if (prior to protocol entry):
* There is a history of a recent myocardial infarction (within one year)
* There is a history of a past myocardial infarction (more than one year ago) along with current coronary symptoms requiring medications and/or evidence of depressed left ventricular function (LVEF \< 45% by MUGA or ECHO)
* There is a current history of angina/coronary symptoms requiring medications and/or evidence of depressed left ventricular function (LVEF \< 45% by MUGA or ECHO)
* There is clinical evidence of congestive heart failure requiring medical management (irrespective of MUGA or ECHO results)
* Patients will be ineligible if there is recurrent pleural effusion or ascites requiring drainage (through thoracentesis, paracentesis, or indwelling device) more often than once every 4 weeks.
* Patients with clinical evidence of active CNS metastases are ineligible for therapy on this protocol.References
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