Other Clinical Trial - BATs in Patients With Breast Cancer &

Status Terminated

Clinical Trial Summary

This study uses bi-specific antibody (HER2Bi) armed activated T-cells (HER2 BATs) to target breast cancer cells that have metastasized to the membranes surrounding the brain and spinal cord. This is known as leptomeningeal metastases. Two doses will be evaluated in order to determine a safe dose. Study treatment includes a test dose of HER2 BATs followed by 8 weekly infusions of HER2 BATs at the assigned dose level. Before, during and after study treatment, participants will be monitored objectively by brain MRIs and clinically through physical and neurological exams, and blood and cerebrospinal fluid will be collected to evaluate immune responses.

Clinical Trial Description

Once subjects are determined eligible, white blood cells (lymphocytes) are collected via leukapheresis procedure approximately 3 to 4 weeks prior to the first BATs infusion. The white blood cells, specifically T cells, are then mixed with two proteins in order to activate the cells to multiply. After approximately 14 days in culture, the activated T cells are coated with OKT3 and trastuzumab/Herceptin (HER2Bi), and washed to remove excess Herceptin in order to produce bispecific antibody armed T cells (BATs). Cells are then frozen and stored until scheduled to be infused. Up to 2 weeks following leukapheresis, participants will undergo surgery to place the catheter/reservoir into the lateral ventricle of the brain to allow intraventricular administration of HER2 BATs and a chemotherapy agent methotrexate. A few weeks later, participants will receive the intraventricular methotrexate in order to control disease while the BATs product is being manufactured. About 4-5 weeks following the leukapheresis and at least 7 days after receiving methotrexate, study treatment will begin with a test dose of HER2 BATs. If this dose is well tolerated by the participant, she will then receive 8 weekly doses of HER2 BATs at the assigned dose level. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03661424
Study type	Interventional
Source	University of Virginia
Contact
Status	Terminated
Phase	Phase 1
Start date	February 26, 2019
Completion date	December 14, 2021

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

BATs in Patients With Breast Cancer and Leptomeningeal Metastases

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms