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Sponsors and Collaborators: |
Dartmouth-Hitchcock Medical Center Amgen |
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Information provided by: | Dartmouth-Hitchcock Medical Center |
ClinicalTrials.gov Identifier: | NCT00169104 |
Trastuzumab or Herceptin is an antibody directed against Her-2. Her-2 is a growth factor receptor which is present on the tumors of 25% of patients with breast cancer. The addition of trastuzumab to chemotherapy has been shown in a randomized clinical trial to increase the response rate to chemotherapy, the duration of response to chemotherapy, and to improve the duration of survival of patients with metastatic breast cancer. The anticancer mechanism of action of trastuzumab is unknown, but it is possible that trastuzumab acts by promoting antibody-dependent cell mediated cytotoxicity (ADCC), or direct killing of cancer cells by immune cells, triggered by antibodies bound to the surface of the cancer cell. G-CSF is a drug which is a growth factor for certain types of immune cells. G-CSF has two favorable effects on ADCC. G-CSF increases the pool of circulating cancer-killing immune cells, and G-CSF increases the strength of binding of cancer-killing immune cells to a specific part of the antibody. Therefore, priming with G-CSF significantly increases the efficiency of ADCC, and four days of treatment with G-CSF has been shown to optimize ADCC in some studies. Recent data from the investigators' laboratory indicates that chemotherapy can augment ADCC directed against tumor cells.
The investigators' hypothesis is that pre-treatment with the drug G-CSF would increase the effectiveness of chemotherapy given with trastuzumab.
Condition | Intervention | Phase |
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Metastatic Breast Cancer |
Drug: G-CSF Drug: trastuzumab Drug: vinorelbine Drug: saline |
Phase II Phase III |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Double Blind (Subject, Investigator), Placebo Control, Parallel Assignment, Efficacy Study |
Official Title: | A Phase II Trial of Trastuzumab, Neupogen, and Vinorelbine Investigating the Effects on Immune Function and Clinical Outcomes in Patients With Metastatic Breast Cancer Overexpressing Her-2/Neu |
Estimated Enrollment: | 25 |
Study Start Date: | July 2002 |
Estimated Study Completion Date: | June 2009 |
Estimated Primary Completion Date: | June 2009 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Active Comparator
Subjects will receive ten doses of G-CSF at a dose of 5 mcgm/kg daily Monday through Friday for the first two weeks of the trial. All patients will also receive trastuzumab weekly during the first two weeks of the trial. All patients will then receive 12 weeks of trastuzumab, vinorelbine, and G-CSF.
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Drug: G-CSF
5 mcgm/kg daily Monday through Friday weeks 3-14
Drug: trastuzumab
4 mcgm/kg intravenously (IV) over 90 minutes week 1, then 2 mg/kg IV over 30 minutes weeks 2-14
Drug: vinorelbine
25 mg/m2 over 6 minutes IV weekly, weeks 3, 4, 6, 7, 9, 10, 12, 13
Drug: G-CSF
5 mcgm/kg SQ daily for ten days, Monday through Friday of the first two weeks of the study
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2: Placebo Comparator
Subjects will receive ten doses of a placebo injection SQ daily Monday through Friday for the first two weeks of the trial. All patients will also receive trastuzumab weekly during the first two weeks of the trial. All patients will then receive 12 weeks of trastuzumab, vinorelbine, and G-CSF.
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Drug: G-CSF
5 mcgm/kg daily Monday through Friday weeks 3-14
Drug: trastuzumab
4 mcgm/kg intravenously (IV) over 90 minutes week 1, then 2 mg/kg IV over 30 minutes weeks 2-14
Drug: vinorelbine
25 mg/m2 over 6 minutes IV weekly, weeks 3, 4, 6, 7, 9, 10, 12, 13
Drug: saline
Saline will be given SQ daily for ten days, Monday through Friday of the first two weeks of the study
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This is a randomized phase II study comparing trastuzumab with G-CSF against trastuzumab with placebo during the first two weeks of therapy.
Twenty five patients with metastatic breast cancer will be randomized to receive weekly trastuzumab plus either G-CSF or placebo by subcutaneous (SQ) injection daily for five days weekly for two weeks. Subsequently, all patients will receive an additional 12 weeks of weekly trastuzumab, G-CSF by SQ injection daily for five days weekly for 12 weeks, and vinorelbine once weekly at a dose of 25 mg/m2 weeks 3, 4, 6, 7, 9, 10, 12, 13. Baseline evaluation will include a history and physical exam, comprehensive metabolic panel (CMP), complete blood count (CBC), serum pregnancy test, computerized tomography (CT) scan for disease measurements, and a Multiple Uptake Gated Acquisition (MUGA) scan. The CT scan and MUGA will be repeated upon completion of the study treatment. Blood will be drawn pre-trastuzumab, 2 hours post-trastuzumab, and 48 hours post-trastuzumab on weeks 1, 2, 3, 4, and 12 to measure whole blood ADCC activity. Two additional assays for whole blood ADCC activity will be drawn at baseline pre-treatment, and following completion of protocol treatment. These assays will measure chromium release from a Her-2 positive target cell exposed to the patient's effector cells. Measurement of soluble Her-2 in patient serum will also be measured at each ADCC time point.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Contact: Gary N Schwartz, MD | (603) 653-6181 | gary.n.schwartz@hitchcock.org |
Contact: Michelle L Greene, MS | (603) 653-6196 | michelle.l.greene@hitchcock.org |
United States, New Hampshire | |
Norris Cotton Cancer Center | Recruiting |
Lebanon, New Hampshire, United States, 03756 | |
Contact: Gary N Schwartz, MD 603-653-6181 gary.n.schwartz@hitchcock.org | |
Contact: Michelle L Greene, BS (603) 653-6196 michelle.l.greene@hitchcock.org | |
Principal Investigator: Gary N Schwartz, MD |
Principal Investigator: | Gary N Schwartz, MD | Norris Cotton Cancer Center |
Responsible Party: | Dartmouth-Hitchcock Medical Center ( Gary N. Schwartz, MD ) |
Study ID Numbers: | D-0140 |
Study First Received: | September 10, 2005 |
Last Updated: | December 21, 2008 |
ClinicalTrials.gov Identifier: | NCT00169104 |
Health Authority: | United States: Institutional Review Board |
Breast cancer Her-2/neu Granulocyte Colony Stimulating Factor Trastuzumab |
Vinorelbine Antibody-dependent cellular cytotoxicity Effector cells |
Antibodies Vinorelbine Skin Diseases Trastuzumab |
Breast Neoplasms Breast Diseases Immunoglobulins |
Neoplasms Neoplasms by Site Antineoplastic Agents |
Therapeutic Uses Antineoplastic Agents, Phytogenic Pharmacologic Actions |