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Vaccine Therapy in Treating Patients With Stage IV HLA-A2 and HER2 Positive Breast or Ovarian Cancer Receiving Trastuzumab

Phase I/II Study of Combination Immunotherapy for the Generation of HER-2/Neu (HER2) Specific Cytotoxic T Cells (CTL) in Vivo

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00194714
Enrollment
22
Registered
2005-09-19
Start date
2016-05-31
Completion date
2023-05-22
Last updated
2024-06-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HER2/Neu Positive, HLA-A2 Positive Cells Present, Stage IV Breast Cancer, Stage IV Ovarian Cancer

Brief summary

This phase I/II trial studies the side effects of vaccine therapy and to see how well it works in treating patients with stage IV major histocompatibility complex, class I, A2 antigen (HLA-A2) and human epidermal growth factor receptor 2 (HER2) positive breast or ovarian cancer who are receiving trastuzumab. Giving booster vaccines made from HER2 peptides may help increase HER2 specific immunity and immune memory cells.

Detailed description

PRIMARY OBJECTIVES: I. To evaluate the safety of administering a HER2 cytotoxic T-cell (CTL) peptide-based vaccine (HER-2/neu peptide vaccine) to stage IV breast and ovarian cancer patients receiving maintenance trastuzumab. II. To quantify and characterize antigen specific T cell subsets specific to HER2 in peripheral blood mononuclear cell (PBMC) of patients after vaccination with a HER2 CTL peptide-based vaccine while receiving maintenance trastuzumab. SECONDARY OBJECTIVES: I. To evaluate overall survival (OS) in patients who complete a vaccination series with a HER2 CTL peptide-based vaccine while receiving maintenance trastuzumab. OUTLINE: Patients receive HER-2/neu peptide vaccine intradermally (ID) once per month for 6 months in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 1, 3, 6, and 12 months, and then yearly for up to 5 years.

Interventions

Given ID

OTHERLaboratory Biomarker Analysis

Correlative studies

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
University of Washington
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
19 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects must have either stage IV breast or ovarian cancer in remission or with stable disease on trastuzumab monotherapy * HER2 overexpression by immunohistocytochemistry (IHC) of 2+ or 3+, in the primary tumor or metastasis; if overexpression is 2+ by IHC, then patients must have HER2 gene amplification documented by fluorescence in situ hybridization (FISH) * Subjects must be HLA-A2 positive * Eligible subjects must have completed appropriate treatment for their primary disease and be off cytotoxic chemotherapy and any immunosuppressive agents such as systemic steroids for at least 30 days prior to enrollment; patients should continue trastuzumab monotherapy throughout the course of this protocol; concurrent hormonal and biphosphonate therapies are allowed * Subjects must have an Eastern Cooperative Oncology Group (ECOG) performance status score = 0 or 1 * Male subjects must agree to contraceptive use during the study period (7 months) and non-menopausal female subjects must agree to contraception for the remainder of their childbearing years * Hematocrit \>= 30 performed within 60 days of enrollment * Platelet count \>= 100,000 performed within 60 days of enrollment * White blood cells (WBC) \>= 3000/ul performed within 60 days of enrollment * Stable creatinine =\< 2.0 mg/dL or creatinine clearance \>= 60 ml/min performed within 60 days of enrollment * Serum bilirubin \< 1.5 mg/dl performed within 60 days of enrollment * Serum glutamic-oxaloacetic transaminase (SGOT) \< 2 x upper limit of normal (ULN) performed within 60 days of enrollment * Subjects must have recovered from major infections and/or surgical procedures and, in the opinion of the investigator, not have a significant active concurrent medical illness precluding protocol treatment or survival * Patients must have a baseline left ventricular ejection fraction (LVEF) measured by multi-gated acquisition scan (MUGA) equal to or greater than the lower limit of normal for the radiology facility and if there are two consecutive MUGAS performed while on trastuzumab from the same radiology facility, there cannot be a decrease in LVEF of \> 15% from the original MUGA scan

Exclusion criteria

* Subjects cannot be simultaneously enrolled on other treatment studies * Any contraindication to receiving granulocyte-macrophage colony-stimulating factor (GM-CSF) based vaccine products * Cardiac disease, specifically restrictive cardiomyopathy, unstable angina within the last 6 months prior to enrollment, New York Heart Association functional class III-IV heart failure on active treatment with normalized LVEF on therapy, and symptomatic pericardial effusion * Active autoimmune disease * Subjects cannot have an active immunodeficiency disorder, e.g. human immunodeficiency virus (HIV)

Design outcomes

Primary

MeasureTime frameDescription
Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer AnalysisUp to 1.5 years (12 months following the last vaccination)ELIspot: Increased immune response is defined as spots per well (SPW) greater than 2 standard deviations (SD) above baseline value, remained the same if the mean SPW was within 2 SD of the previous value, or decreased if the mean SPW was greater than 2 SD below the previous value. Two SD is equivalent to a P value of .05 in that there is a 95% probability that the values are statistically significant. T is reported as percentage of patients and their corresponding results. HLA-A2 Major Histocompatibility Complex Tetramer Analysis is evaluated using a non-radioactive assay for cell lysis. The HLA-A2 transfected human HER2/neu expressing breast cancer cell line, SKBR3-A2 T cells, expanded after stimulation with immunizing peptide, were added in an effector/target ratio of 40:1. Percent specific lysis was calculated as: (\[experimental release-spontaneous releases of cytotoxic T-lymphocyte cells and target cells\]/\[maximum release-spontaneous release of target cells\])X100.
Number of Adverse Events Graded Using National Cancer Institute (NCI) Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events (CTCAE), Version 3.0Up to 7 months (30 days following the last vaccination)Descriptive statistics will be used to summarize changes from baseline. At the point the participant signs consent and before they start vaccine we record their existing baseline events (symptoms and diagnoses) and assign a grade to them (see below). Once a participant starts vaccine treatment adverse event AEs were recorded if they are new to the participant or if they increased in severity over their baseline. Grade refers to the severity of the AE. The CTCAE v3.0 displays Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild AE Grade 2 Moderate AE Grade 3 Severe AE Grade 4 Life-threatening or disabling AE Grade 5 Death related to AE

Secondary

MeasureTime frameDescription
Overall SurvivalUp to 5 yearsSurvival for the Stage IV breast cancer patients will be compared to historical control.

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (HER-2/Neu Peptide Vaccine)
Patients receive HER-2/neu peptide vaccine ID once per month for 6 months in the absence of disease progression or unacceptable toxicity. HER-2/neu Peptide Vaccine: Given ID Laboratory Biomarker Analysis: Correlative studies
21
Total21

Baseline characteristics

CharacteristicTreatment (HER-2/Neu Peptide Vaccine)
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
2 Participants
Age, Categorical
Between 18 and 65 years
19 Participants
Age, Continuous49 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
21 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
20 Participants
Region of Enrollment
United States
21 participants
Sex: Female, Male
Female
21 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
11 / 21
other
Total, other adverse events
21 / 21
serious
Total, serious adverse events
3 / 21

Outcome results

Primary

Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer Analysis

ELIspot: Increased immune response is defined as spots per well (SPW) greater than 2 standard deviations (SD) above baseline value, remained the same if the mean SPW was within 2 SD of the previous value, or decreased if the mean SPW was greater than 2 SD below the previous value. Two SD is equivalent to a P value of .05 in that there is a 95% probability that the values are statistically significant. T is reported as percentage of patients and their corresponding results. HLA-A2 Major Histocompatibility Complex Tetramer Analysis is evaluated using a non-radioactive assay for cell lysis. The HLA-A2 transfected human HER2/neu expressing breast cancer cell line, SKBR3-A2 T cells, expanded after stimulation with immunizing peptide, were added in an effector/target ratio of 40:1. Percent specific lysis was calculated as: (\[experimental release-spontaneous releases of cytotoxic T-lymphocyte cells and target cells\]/\[maximum release-spontaneous release of target cells\])X100.

Time frame: Up to 1.5 years (12 months following the last vaccination)

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Treatment (HER-2/Neu Peptide Vaccine)Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer AnalysisHLA-A2 ResultsSignificantly augmented immune response14 Participants
Treatment (HER-2/Neu Peptide Vaccine)Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer AnalysisHLA-A2 ResultsDid not have augmentation of immune response4 Participants
Treatment (HER-2/Neu Peptide Vaccine)Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer AnalysisHLA-A2 ResultsDecrease in immune response1 Participants
Treatment (HER-2/Neu Peptide Vaccine)Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer AnalysisELIspotSignificantly augmented immune response16 Participants
Treatment (HER-2/Neu Peptide Vaccine)Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer AnalysisELIspotDid not have augmentation of immune response3 Participants
Treatment (HER-2/Neu Peptide Vaccine)Immune Response Measured by IFN-gamma Secreting PBMC Precursor Frequency by ELIspot and HLA-A2 Major Histocompatibility Complex Tetramer AnalysisELIspotDecrease in immune response0 Participants
Primary

Number of Adverse Events Graded Using National Cancer Institute (NCI) Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events (CTCAE), Version 3.0

Descriptive statistics will be used to summarize changes from baseline. At the point the participant signs consent and before they start vaccine we record their existing baseline events (symptoms and diagnoses) and assign a grade to them (see below). Once a participant starts vaccine treatment adverse event AEs were recorded if they are new to the participant or if they increased in severity over their baseline. Grade refers to the severity of the AE. The CTCAE v3.0 displays Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild AE Grade 2 Moderate AE Grade 3 Severe AE Grade 4 Life-threatening or disabling AE Grade 5 Death related to AE

Time frame: Up to 7 months (30 days following the last vaccination)

Population: We recorded a total of 573 individual adverse events from baseline through follow-up evaluation for 21 patients. The data below represents the total number of events by Grade using Common Terminology Criteria for Adverse Events v3.0 (CTCAE)

ArmMeasureGroupValue (NUMBER)
Treatment (HER-2/Neu Peptide Vaccine)Number of Adverse Events Graded Using National Cancer Institute (NCI) Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events (CTCAE), Version 3.0Grade 1508 adverse events
Treatment (HER-2/Neu Peptide Vaccine)Number of Adverse Events Graded Using National Cancer Institute (NCI) Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events (CTCAE), Version 3.0Grade 260 adverse events
Treatment (HER-2/Neu Peptide Vaccine)Number of Adverse Events Graded Using National Cancer Institute (NCI) Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events (CTCAE), Version 3.0Grade 34 adverse events
Treatment (HER-2/Neu Peptide Vaccine)Number of Adverse Events Graded Using National Cancer Institute (NCI) Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events (CTCAE), Version 3.0Grade 41 adverse events
Secondary

Overall Survival

Survival for the Stage IV breast cancer patients will be compared to historical control.

Time frame: Up to 5 years

Population: These are interim results: We are still monitoring overall survival.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment (HER-2/Neu Peptide Vaccine)Overall SurvivalAlive10 Participants
Treatment (HER-2/Neu Peptide Vaccine)Overall SurvivalDeceased11 Participants

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026