Targeted T Cells After Neoadjuvant Chemotherapy in Treating Women With Stage II or III Breast Cancer Undergoing Surgery

Breast Cancer Clinical Trial

Official title: A Phase II Study of Anti-CD3 x Anti-HER2/Neu (Her2Bi) Armed Activated T Cells (ATC) After Neoadjuvant Chemotherapy in Women With HER2/Neu (0-2+), Hormone Receptor (HR) Negative Stage II-III Breast Cancers

Status Terminated

Clinical Trial Summary

RATIONALE: Neoadjuvant chemotherapy for women with stage II-III Her negative breast cancer followed by Her2Bi armed activated T cells (ATCs) may significantly improve the pathologic complete response (pCR) rate at the time of surgery. Arming ex vivo expanded T cells in the laboratory may help the T cells kill more tumor cells when they are put back in the body. Giving combination neoadjuvant chemotherapy followed by laboratory-treated T cells before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed.

PURPOSE: This phase II clinical trial is studying how well giving laboratory-treated T cells after neoadjuvant chemotherapy works in treating women with stage II or stage III breast cancer undergoing surgery.

Clinical Trial Description

PRIMARY OBJECTIVES:

I. To estimate progression-free survival (PFS) in women with stage II-III triple-negative breast cancer without a complete pathologic response (cPR) who receive a regimen of neoadjuvant chemotherapy (chemoT), surgery, and/or irradiation followed by 8 infusions of ~10-15 x 10^9 Her2Bi-armed activated T cells (ATC) (aATC) given twice per week for 4 weeks in combination with IL-2 (aldesleukin) (300,000 IU/m^2/day) and GM-CSF (sargramostim) (250 μg/m^2/twice per week) beginning 3 days before the 1st infusion and ending 1 week after the last infusion (defined as immunotherapy).

II. To estimate the change from baseline (pre immunotherapy [IT]) to post-IT in specific cytotoxicity and interferon gamma (IFN-γ) enzyme-linked immunosorbent spots (Elispots) of lymphocytes in the blood directed at breast cancer cells.

III. To investigate if pathologic response and the changes in numbers and proportion of infiltrating cells and cancer stem cells in the tumor at the time of surgery are associated with progressive disease.

OUTLINE:

NEOADJUVANT CHEMOTHERAPY: Patients receive dose-dense AC-T regimen comprising doxorubicin hydrochloride intravenously (IV) and cyclophosphamide IV once every 2 weeks for 4 courses followed by paclitaxel IV once every 2 weeks for 4 courses or paclitaxel IV once weekly for 12 weeks. Or, patients receive TAC regimen comprising docetaxel IV, doxorubicin hydrochloride IV, and cyclophosphamide IV once every 3 weeks for 6 courses. Treatment continues in the absence of disease progression or unacceptable toxicity.

IMMUNOTHERAPY: Beginning 3 weeks after the last dose of chemotherapy, patients receive Her2Bi-armed activated T cells IV over 5-30 minutes twice weekly for 4 weeks. Patients also receive aldesleukin subcutaneously (SC) daily beginning 3 days before the first T cell infusion and ending 1 week after the last infusion.

SURGERY: Patients then undergo surgical resection of the breast 2 weeks later.

After completion of study treatment, patients may be followed up at 1, 3, 6, and 12 months. ;

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms

• NCT number: NCT01147016
• Study type: Interventional
• Source: Barbara Ann Karmanos Cancer Institute
• Status: Terminated
• Phase: Phase 2
• Start date: July 2010
• Completion date: July 26, 2017