Allogeneic Natural Killer (NK) Cells in Patients With Advanced Metastatic Breast Cancer

Allogeneic Natural Killer Cells in Patients With Advanced Metastatic Breast Cancer

RATIONALE: Giving chemotherapy before a donor natural killer (NK) cell infusion helps stop the growth of tumor cells. It also helps stop the patient's immune system from rejecting the donor's cells. Giving NK cells from a related donor may kill the tumor cells.

PURPOSE: This study furthers the research of previous studies (MT2003-01 and MT2004-25) which were to determine a specific preparatory regimen (cyclophosphamide and fludarabine) could create an environment in which infused NK cells can grow and effectively treat patients with relapsed AML. This study will test the previous regimen in patients with breast cancer.

Study Overview

Detailed Description

We believe that administration of related allogeneic (donor) natural killer cells along with IL-2, rather than autologous natural killer cells will provide the most effective anticancer therapy in this setting, and wish to test this approach. To do this, we will select a related donor who is partially HLA-matched with the study subject, to increase the likelihood that donor natural killer cells will kill the subject's cancer cells. We will also give chemotherapy drugs to increase the subject's tolerance for the donor natural killer cells. We will test the use of donor natural killer (NK) cell infusions. The immune system has a special way that it sees and identifies cancer cells or foreign agents (like viruses). The subject's own NK cells may not attack their cancer because NK cells see the tumor cells as "self" (a coating on the cell surface identifies a cell as "self" or "non-self"). We have reason to believe that NK cells may not kill cancer cells because NK cells have special receptors that "turn them off" when they encounter cancer cells (by seeing them as "self"). We may be able to get around this problem by using donor NK cells. Finally, subjects will receive a dose of subcutaneous IL-2 3 times a week (for 2 weeks) which has been proven safe in our previous studies to stimulate the natural killer cells.

Study Type

Interventional

Enrollment (Actual)

6

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • Masonic Cancer Center at University of Minnesota

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria:

  • Diagnosis of metastatic breast cancer that has progressed on or failed at least one salvage chemotherapy regimen for metastatic disease and that meets the following disease specific related criteria:

    • Measureable metastatic disease per Response Evaluation Criteria In Solid Tumor (RECIST) - bone only not eligible.
    • Disease progression while receiving prior therapy with a hormonal agent (if estrogen/progesterone receptor-positive) and/or trastuzumab (Herceptin®) (if HER2-neu positive)
    • Brain metastases allowed provided they are stable for ≥ 3 months after prior treatment
  • Related HLA-haploidentical natural killer cell donor available (by ≥ class I serologic typing)
  • Male or female
  • Performance status 50-100%
  • Platelet count ≥ 80,000/mm³ (unsupported by transfusions)
  • Hemoglobin ≥ 9 g/dL (unsupported by transfusions)
  • Absolute neutrophil count ≥ 1,000/mm³ (unsupported by sargramostim [GM-CSF] or filgrastim [G-CSF])
  • Creatinine ≤ 2.0 mg/dL
  • Liver function tests < 5 times normal
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • LVEF > 40%*
  • Pulmonary function > 50%* (DLCO corrected AND FEV_1)
  • No active infection (i.e., afebrile, off antibiotics, and no uninvestigated radiologic lesions)

Exclusion Criteria:

  • At least 3 days since prior prednisone or other immunosuppressive medications
  • No other concurrent therapy for cancer

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: All Treated Patients
All patients with advanced metastatic breast cancer treated with natural killer cells after receiving fludarabine, cyclosphosphamide and total body irradiation.
administered intravenously 25 mg/m^2 times 5 doses
Other Names:
  • Fludara
administered intravenously 60 mg/kg days times 2 doses.
Other Names:
  • Endoxan, Cytoxan, Neosar, Procytox
200 cGy (gray) on day -1
Other Names:
  • radiation
Infused cell dose is within the range of 1.5-8.0 x 10^7/kg. Cell counts are based on total cells infused after the activation culture and washing determined on the morning of infusion.
Other Names:
  • NK cells
administered subcutaneously (10 MU) 3 times per week for 6 doses
Other Names:
  • IL-2

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Patients Who Had Expansion of Natural Killer Cells
Time Frame: Day 14
Successful Natural Killer (NK) cell expansion is defined as detection of an absolute circulating donor-derived NK cell count of >100 cells/ul of whole blood 14 days after infusion with <5% donor T and B cells in mononuclear population (in metastatic breast cancer patients).
Day 14

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Patients by Disease Response
Time Frame: 6 Months, 1 Year

Defined by the Response Evaluation Criteria in Solid Tumors (RECIST) criteria:

  • Complete Response (CR: Disappearance of all target lesions
  • Partial Response (PR): At least a 30% decrease in the sum of the longest diameter (LD) of target lesions
  • Stable Disease (SD): Neither sufficient shrinkage to qualify for PR or sufficient increase to qualify for PD
  • Progressive Disease (PD): At least a 20% increase in the sum of the LD of target lesions of appearance of one or more new lesions

of clinical benefit (CB; stable disease for greater than 6 months.

6 Months, 1 Year
Number of Patients Who Died While on Study
Time Frame: Within 100 days, After 100 days
Number of patients who died within 100 days and after 100 days of natural killer (NK) treatment with or without total body irradiation.
Within 100 days, After 100 days
Overall Median Number of Days Patients Alive After Treatment
Time Frame: First Day of Treatment Until Death
Calculated median number of days of survival (patients alive days after treatment).
First Day of Treatment Until Death

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Jeffrey Miller, MD, Masonic Cancer Center, University of Minnesota
  • Principal Investigator: Sarah Cooley, MD, Masonic Cancer Center, University of Minnesota

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2006

Primary Completion (Actual)

September 1, 2009

Study Completion (Actual)

January 1, 2010

Study Registration Dates

First Submitted

September 13, 2006

First Submitted That Met QC Criteria

September 13, 2006

First Posted (Estimate)

September 15, 2006

Study Record Updates

Last Update Posted (Actual)

December 28, 2017

Last Update Submitted That Met QC Criteria

December 3, 2017

Last Verified

December 1, 2017

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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