- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00673829
Trial of 2nd Generation Anti-CEA Designer T Cells in Metastatic Breast Cancer
Phase Ia/Ib Trial of 2nd Generation Anti-CEA Designer T Cells in Metastatic Breast Cancer
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
T cells can penetrate virtually every biologic space and have the power to dispose of normal or malignant cells as seen in viral and autoimmune diseases and in the rare spontaneous remissions of cancer. However, T cells are easily tolerized to self or tumor antigens and "immune surveillance" has manifestly failed in every cancer that is clinically apparent. It is the goal of this study to supply the specificities and affinities to patient T cells without regard for their "endogenous" T cell receptor repertoire, directed by antibody-defined recognition to kill malignant cells based on their expression of antigen. We will achieve this by preparing chimeric IgCD28TCR genes in mammalian expression vectors to yield "designer T cells" from normal patient cells. Prior studies in model systems demonstrated that recombinant IgCD28TCR could direct modified T cells to respond to antigen targets with IL2 secretion, cellular proliferation, and cytotoxicity, the hallmarks of an effective, self-sustaining immune response.
It therefore becomes of paramount interest to extend these studies to a human system of widespread clinical relevance to explore the clinical potential of this new technology. The target antigen for these studies is carcinoembryonic antigen (CEA), which is prominently expressed on tumors of the stomach, colon and rectum, breast, pancreas and other sites.
For the Phase Ia component, patients receive a single dose of gene-modified autologous T cells on this dose-escalation trial. Doses are 10^9 and 10^10 modified T cells. Patients are monitored for safety and response. Patients are on-study for one month after dosing.
For the Phase Ib component, patients receive a fixed dose of gene-modified T cells (10^11 cells), randomized to receive T cell growth factor interleukin 2 (+IL2) [Experimental] or not (-IL2) [Control]. The IL2 is administered outpatient by continuous infusion for a two-week period. On Day +2 and Day +10, the patient's tumor is biopsied to assess the designer T cell presence in the tumor as a means of judging the benefit of added IL2. Patients will also be followed for tumor response.
Study Type
Enrollment (Anticipated)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
Massachusetts
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Boston, Massachusetts, United States, 02115
- Tufts University Medical Center
-
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Rhode Island
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Providence, Rhode Island, United States, 02908
- Roger Williams Medical Center
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Must have cancer of the breast
- Must have metastatic or unresectable locally advanced disease
- Tumor must express CEA by tumor staining or by elevated serum CEA (>10 ng/ml)
- Must have measurable disease radiologically or by physical exam
- Must have failed potentially curative standard therapy
- Must be 18 years of age or older
- Good performance status (PS 0-1)
Exclusion Criteria:
- Requiring systemic steroids
- Serious medical conditions
- Concurrent malignancies
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Phase Ia
|
Gene Modified T Cells Phase Ia: One time infusion Modified TCells given through a vein in the arm or a catheter over a 30-60 minute period
Other Names:
|
Experimental: Phase Ib: Control
|
One time infusion Modified T Cells without or with (randomized) continuous infusion outpatient interleukin 2 (IL2) for two weeks
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Phase Ia:Determine the safety of using modified T-cells by documenting the type and severity of any side effects and establishing the maximum tolerated dose (MTD).
Time Frame: 1 Month
|
1 Month
|
Phase Ib: Determine optimal biologic dose (OBD) in terms of value of added interleukin 2.
Time Frame: 1 Month
|
1 Month
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Tumor Response
Time Frame: 1 Month
|
1 Month
|
Pharmacokinetic
Time Frame: 1 month
|
1 month
|
Pharmacodynamic
Time Frame: 1 Month
|
1 Month
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 300-04
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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