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Autologous Vaccination With Lethally Irradiated, Autologous Breast Cancer Cells Engineered to Secrete GM-CSF in Women With Operable Breast Cancer

A Phase Ib Study of Autologous Vaccination With Lethally Irradiated, Autologous Breast Cancer Cells Engineered by Adenoviral Mediated Gene Transfer to Secrete GM-CSF Following Preoperative Chemotherapy in Women With Operable Breast Cancer

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00880464
Enrollment
8
Registered
2009-04-13
Start date
2006-01-01
Completion date
2021-06-30
Last updated
2022-04-01

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

Conditions

Breast Cancer

Keywords

autologous vaccination, GM-CSF, adenoviral mediated gene transfer, Stage IV breast cancer

Brief summary

The purpose of this trial is to test the safety of a vaccine made from a patient's own breast cancer cells, and determine if this vaccine will delay or stop the growth of the cancer. The vaccine is made by genetically modifying a patient's own tumor cells to secrete granulocyte-macrophage colony-stimulating factor (GM-CSF) to activate the immune response

Detailed description

After the patient has given their consent to participate in the trial, a series of tests will be performed to determine if the patient is eligible. These tests may take place up to 21 days before the surgery to remove a tumor sample or cancer-containing fluid, which will be used to create the vaccines. The tumor cells or fluid is then brought to a special, certified laboratory where the vaccine is made. Specially trained laboratory technicians then use a method known as adenoviral mediated gene transfer, which adds a new gene to the cancer cells. This gene causes the cells to make GM-CSF, a powerful hormone that stimulates the immune system. The cells are then given radiation so that they will not grow. Participants will start receiving vaccine on day 1, 8, 15, 29, and then every two weeks until the supply of vaccine has run out. The amount of the vaccine depends upon the total amount of cells that are obtained from the breast cancer tumor or fluid. Each time the patient is vaccinated, they will be given injections that will be placed underneath the skin. A different place will be used for each injection. If there are enough cells from the patient's tumor sample, the patient will be given an injection of non-transduced irradiated cells (the gene was not added) . These cells will help to measure how the patient's immune system is reacting to the tumor cells. This is called Delayed-Type Hypersensitivity (DTH). With vaccine #1 and #5, the patient will also receive a DTH injection. Two to three days after the vaccine and DTH injection, skin biopsies will be taken of both sites. At week 10 in the study treatment, or earlier if necessary, the patient will have a chest, abdomen, and pelvic CT scan to determine if the vaccine therapy has had an effect on their disease. A brain MRI will be performed if there were any abnormalities on the first brain MRI or if new symptoms have developed. Patients may participate in this study until one of the following happens: All vaccine created from the tumor has been given to the patient; the patient's disease worsens; the patient experiences an unacceptable and/or harmful side effect; the patient is unable to follow the study plan; or the patient's doctor feels it is no longer in the best interest of the patient to continue.

Interventions

Vaccination with autologous tumor cells engineered by adenoviral mediated gene transfer to secrete GM-CS

Sponsors

Brigham and Women's Hospital
CollaboratorOTHER
Dana-Farber Cancer Institute
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically or cytologically confirmed invasive breast cancer, pre-operative stages II-III per AJCC 6th edition, based on baseline evaluation by clinical examination and/or breast imaging * Cohort 1: At least 2cm of residual disease in sum of diameters by clinical or radiographic findings following their preoperative chemotherapy * Cohort 2: Patients who have not received preoperative chemotherapy must have at least 4cm of disease in the largest diameter by clinical or radiographic findings * Prior therapy for Cohort 1 only: Must have completed preoperative (neoadjuvant) chemotherapy with either a standard regimen (containing an anthracycline and/or a taxane) or on a clinical trial * HER2 positive tumors must have received at least one prior trastuzumab-based therapy, and may not receive concurrent trastuzumab therapy and vaccination * Must initiate hormonal therapy (if indicated), including ovarian suppression, at least 4 weeks prior to initiation of vaccinations * Must have completed definitive resection of primary tumor with adequated excision of gross disease. Surgery should have occured more than 28 days but within 12 weeks prior to enrollment * May receive concurrent hormonal therapy, such as tamoxifen, ovarian suppression, and aromatase inhibitors * Must have had prior banked tumor of sufficient cellular yield for vaccination * ECOG Performance Status 0 or 1 * 18 years of age or older * Greater than 4 weeks from immunotherapy, or systemic glucocorticoid therapy * Adequate recovery from recent surgery and radiation therapy

Exclusion criteria

* Uncontrolled active infection or illness * Other medical or psychiatric illness or social situation that would limit study compliance * Pregnancy or nursing mothers * Evidence of HIV infection * Previous participation in an adenovirus-based trial * Concurrent invasive malignancies

Design outcomes

Primary

MeasureTime frameDescription
Minimum Number of Vaccine Doses Created Using Participant Tumor Sample40 MonthsTumor samples were obtained via malignant effusion or a surgically accessible tumor nodule of 2 cm in greatest diameter. Tumor cells were processed to single cell suspension and transduced with adenoviral vector encoding human Granulocyte-macrophage colony-stimulating factor (GM-CSF). Then, the cells washed extensively and irradiated with 10,000 cGy. Over the next 14 days, sterility cultures were tested for endotoxin and mycoplasma contamination. Individual vaccine cell dose and number varied depending on the final cell yield from vaccine production. For stage II-III patients, the minimal dose was 1 x 10\^5 cells and the maximal dose was 4 x 10\^6 cells. For metastatic patients, the minimal dose was 1 x 10\^5 cells and the maximal dose was 1 x 10\^7 cells.
Number of Participants With Grade 3 or Higher Adverse EventsUp to 58 MonthsNumber of participants with grade 3 or higher adverse events as assessed by Common Terminology Criteria for Adverse Events (CTCAE) version 4.0.

Secondary

MeasureTime frameDescription
Median Follow-up Time by Survival StatusUp to 14 YearsParticipants followed for survival status. Participants who were alive were noted as such as late as December 2020.

Countries

United States

Participant flow

Recruitment details

January 2006 through May 2008

Participants by arm

ArmCount
Metastatic Breast Cancer Cohort
Biological/Vaccine: Autologous, Lethally Irradiated Breast Cancer Cells Vaccine will be administered on days 1, 8, 15, 29 and then every 2 weeks until the supply of vaccine runs out Autologous, Lethally Irradiated Breast Cancer Cells: Vaccination with autologous tumor cells engineered by adenoviral mediated gene transfer to secrete GM-CS
7
Total7

Baseline characteristics

CharacteristicMetastatic Breast Cancer Cohort
Age, Continuous51.5 years
Clinical Stage
T3, N1
3 Participants
Clinical Stage
T4, N0, M1
1 Participants
Clinical Stage
T4, N1
2 Participants
Clinical Stage
T4, N2
1 Participants
Hormone Receptor Status
Negative
2 Participants
Hormone Receptor Status
Positive
5 Participants
Human Epidermal Growth Factor Receptor 2 Status
Negative
6 Participants
Human Epidermal Growth Factor Receptor 2 Status
Positive
1 Participants
Pathologic Response to Neoadjuvant Therapy
Not Available
1 Participants
Pathologic Response to Neoadjuvant Therapy
Partial Response
6 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 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
7 Participants
Sex: Female, Male
Female
7 Participants
Sex: Female, Male
Male
0 Participants
Triple Negative
Negative
5 Participants
Triple Negative
Positive
2 Participants
Type of Surgery
Lumpectomy
1 Participants
Type of Surgery
Mastectomy
6 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
5 / 7
other
Total, other adverse events
7 / 7
serious
Total, serious adverse events
1 / 7

Outcome results

Primary

Minimum Number of Vaccine Doses Created Using Participant Tumor Sample

Tumor samples were obtained via malignant effusion or a surgically accessible tumor nodule of 2 cm in greatest diameter. Tumor cells were processed to single cell suspension and transduced with adenoviral vector encoding human Granulocyte-macrophage colony-stimulating factor (GM-CSF). Then, the cells washed extensively and irradiated with 10,000 cGy. Over the next 14 days, sterility cultures were tested for endotoxin and mycoplasma contamination. Individual vaccine cell dose and number varied depending on the final cell yield from vaccine production. For stage II-III patients, the minimal dose was 1 x 10\^5 cells and the maximal dose was 4 x 10\^6 cells. For metastatic patients, the minimal dose was 1 x 10\^5 cells and the maximal dose was 1 x 10\^7 cells.

Time frame: 40 Months

Population: Vaccinations prepared for enrolled for vaccine administration population.

ArmMeasureValue (NUMBER)
VaccineMinimum Number of Vaccine Doses Created Using Participant Tumor Sample6 doses
Primary

Number of Participants With Grade 3 or Higher Adverse Events

Number of participants with grade 3 or higher adverse events as assessed by Common Terminology Criteria for Adverse Events (CTCAE) version 4.0.

Time frame: Up to 58 Months

Population: Analysis population for adverse events is Treated population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
VaccineNumber of Participants With Grade 3 or Higher Adverse EventsGrade 31 Participants
VaccineNumber of Participants With Grade 3 or Higher Adverse EventsGrade 40 Participants
VaccineNumber of Participants With Grade 3 or Higher Adverse EventsGrade 50 Participants
Secondary

Median Follow-up Time by Survival Status

Participants followed for survival status. Participants who were alive were noted as such as late as December 2020.

Time frame: Up to 14 Years

Population: Clinical outcomes assessed for the treated population.

ArmMeasureGroupValue (MEDIAN)
VaccineMedian Follow-up Time by Survival StatusAlive9.88 years
VaccineMedian Follow-up Time by Survival StatusDead6.24 years

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026