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Vaccine Therapy in Patients With Stage II, III, or IV Epithelial Ovarian, Fallopian Tube, or Peritoneal Cancer

Phase II Study of Recombinant Vaccinia-NY-ESO-1 (rV-NY-ESO-1) and Recombinant Fowlpox-NY-ESO-1 (rF-NY-ESO-1) in Patients With Epithelial Ovarian, Fallopian Tube or Primary Peritoneal Carcinoma Whose Tumors Express NY-ESO-1 or LAGE-1 Antigen

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00112957
Enrollment
23
Registered
2005-06-03
Start date
2004-12-31
Completion date
2009-05-31
Last updated
2023-10-04

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

Conditions

Fallopian Tube Cancer, Ovarian Cancer, Peritoneal Cavity Cancer

Keywords

fallopian tube cancer, stage II ovarian epithelial cancer, stage III ovarian epithelial cancer, stage IV ovarian epithelial cancer, peritoneal cavity cancer

Brief summary

This was a Phase 2, single-center, open-label study of recombinant vaccinia-NY-ESO-1 (rV-NY-ESO-1) and recombinant fowlpox-NY-ESO-1 (rF-NY-ESO-1) injections in patients who had a complete response to standard therapy for epithelial ovarian, fallopian tube, or primary peritoneal carcinoma and whose tumors expressed NY-ESO-1 or LAGE-1 antigen. Study objectives were to evaluate maintenance of remission at 12 months, time to failure of vaccine therapy, cellular and humoral immunity and any correlation with time to failure, and safety.

Detailed description

Patients received a single intradermal injection of rV-NY-ESO-1 (3.1 × 10\^7 plaque forming units \[PFU\]) on Day 1, followed by monthly subcutaneous injections of rF-NY-ESO-1 (7.41 × 10\^7 PFU) for 6 months (Days 29, 57, 85, 113, 141, and 169) or until observation of treatment-related ≥ grade 3 toxicity or disease progression. Study injections were administered during a 28-week evaluation period. Patients returned to the clinic for follow-up on Day 197 (i.e., 28 days after the last study injection) and every 2 months thereafter for at least 12 months. In patients with measurable disease, tumor response was assessed according to the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.0. Patients were monitored continuously for safety for the duration of study participation.

Interventions

BIOLOGICALrV-NY-ESO-1 vaccine

Patients received a single intradermal injection of rV-NY-ESO-1 (3.1 × 10\^7 PFU) on Day 1.

BIOLOGICALrF-NY-ESO-1 vaccine

Patients received subcutaneous injections of rF-NY-ESO-1 (7.41 × 10\^7 PFU) on Days 29, 57, 85, 113, 141, and 169.

Sponsors

Roswell Park Cancer Institute
CollaboratorOTHER
Ludwig Institute for Cancer Research
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Histologically documented epithelial carcinoma arising in the ovary, fallopian tube, or peritoneum, from stage II to IV at diagnosis. 2. Received initial surgery and chemotherapy with at least one platinum-based chemotherapy regimen. 3. Demonstrated complete response to first line therapy as evidenced by negative clinical examination, cancer antigen (CA)-125 tumor marker, and computed tomography (CT) scan. In addition, if second-look surgery was performed, patients must have had no evidence of microscopic or macroscopic disease. Patients must have been within 6 months of completing their first line platinum-based chemotherapy. These patients would normally enter a period of observation as standard management. 4. Tumor expression of 1) NY-ESO-1 by reverse transcription-polymerase chain reaction (RT-PCR) analysis, preferably, or immunohistochemistry; or 2) LAGE-1 by RT-PCR. 5. Expected survival of at least 6 months. 6. Full recovery from surgery. 7. Karnofsky performance status of 70% or more. 8. Patients must have had the following clinical laboratory results: * neutrophil count: ≥ 1.5 x 10\^9/L * lymphocyte count: ≥ 0.5 x 10\^9/L * platelet count: ≥ 100 x 10\^9/L * serum creatinine: ≤ 2 mg/dL * serum bilirubin: ≤ 2 mg/dL 9. Ability to avoid close contact with children \< 3 years of age; pregnant or breast feeding women; individuals with active, or a history of, eczema or atopic dermatitis or other skin disorders such as burns, chickenpox, shingles, impetigo, herpes, severe acne, or psoriasis; and immunocompromised individuals (human immunodeficiency virus \[HIV\], leukemia, lymphoma, solid organ transplantation, generalized malignancy, cellular or humoral immunodeficiency syndromes, patients currently receiving cytotoxic chemotherapies, radiation, or high dose corticosteroids). 10. Have been informed of other treatment options. 11. Age ≥ 18 years. 12. Able and willing to give valid written informed consent.

Exclusion criteria

1. Metastatic disease to the central nervous system for which other therapeutic options, including radiotherapy, may have been available. 2. Other serious illnesses (eg, serious infections requiring antibiotics, bleeding disorders). 3. History of current eczema or atopic dermatitis. 4. History of autoimmune disease (eg., thyroiditis, lupus). 5. Other acute, chronic, or exfoliative skin conditions such as burns, chickenpox, shingles, impetigo, herpes, severe acne, or psoriasis. 6. Concomitant systemic treatment with corticosteroids, anti-histamine or non-steroidal anti-inflammatory drugs. Specific cyclooxygenase-2 inhibitors were permitted. 7. Chemotherapy, radiation therapy, or immunotherapy within 4 weeks before study entry (6 weeks for nitrosoureas). 8. Known HIV positivity. 9. Known allergy or severe reaction to a smallpox (vaccinia) vaccination. 10. Known allergy to eggs, determined by history. 11. Myocardial infarction, angina, congestive heart failure, cardiomyopathy, stroke or transient ischemic attack, chest pain or shortness of breath with activity, or other heart conditions being treated by a doctor. 12. Presence of 3 or more of the following risk factors: * Hypertension * Hypercholesterolemia * Diabetes * A first degree relative (for example, mother, father, brother, sister) who had a heart condition before the age of 50 * Current cigarette smoker 13. Participation in any other clinical trial involving another investigational agent within 4 weeks prior to enrollment. 14. Mental impairment that may have compromised the ability to give informed consent and comply with the requirements of the study. 15. Lack of availability of a patient for immunological and clinical follow-up assessment.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Patients in Remission at 1 Year12 monthsTime to failure (TTF) was evaluated as the crude proportion of patients in remission at 1 year, calculated as: 100 x (number of patients in remission at 1 year)/(number of patients with known status at 1 year). The Kaplan-Meier cumulative estimate of the proportion of patients in remission at 1 year was also calculated.

Secondary

MeasureTime frameDescription
Number of Patients With Best Overall Tumor ResponseUp to 20 monthsTumor responses were evaluated using computed tomography and were categorized according to RECIST (version 1.0) at Screening, on Days 85 and 197 and every 2 months thereafter for at least 12 months. Per RECIST, target lesions are categorized as follows: Complete Response (CR): Disappearance of all target lesions (no evaluable disease); Partial Response (PR): ≥ 30% decrease in the sum of the longest diameter of target lesions; Progressive Disease (PD): ≥ 20% increase in the sum of the longest diameter of target lesions; Stable Disease (SD): small changes that do not meet above criteria.
Mean Absolute Cancer Antigen-125 Values Over Time on StudyUp to 20 monthsBlood samples were collected to measure serum levels of tumor marker cancer antigen (CA)-125 at Screening and on Days 1, 29, 57, 85, 113, 141, 169, and 197 and every 2 months for at least 12 months following Day 197.
Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityUp to 20 monthsSpecific antibody response to the NY-ESO-1 and LAGE-1 antigen was measured by enzyme-linked immunosorbent assay (ELISA) at Screening, Days 29, 57, 85, 113, 141, 169, 197, Month 6, and Month 12.
Mean Time to Failure Among Patients Who Progressed On StudyUp to 20 monthsTTF was calculated as the number of days from the first dose until the patient discontinued due to progressive disease. Patients who completed the study or discontinued for other reasons were considered censored at the day of their last study visit, including the follow-up visits after Day 197. Progression was defined using the Response Evaluation Criteria In Solid Tumors (RECIST \[version 1.0\]) as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions
Number of Patients With Detectable T-cell Responses Following VaccinationUp to 20 monthsNY-ESO-1-specific CD8+ T cells (human leukocyte antigen \[HLA\]-A2 patients only) and NY-ESO-1-specific CD4+ T cells (HLA-DP4 patients only) were measured by interferon-gamma enzyme-linked immunosorbent spot (ELISPOT) assay. The response to the ELISPOT assay was considered to be positive if the number of spots in the peptide-exposed well was 2-fold or more higher than the number of spots in the unstimulated well, and if there was a minimum of 10 (after subtraction of background spots) peptide-specific spots/25,000 T-cells, or less if T-cell clones were used.
Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationUp to 6 monthsNY-ESO-1 antigen-specific delayed-type hypersensitivity (DTH) was measured by skin test at Screening and on Days 113 and 197. All patients were tested for the NY-ESO-1 protein, with additional DTH testing as follows: patients who were HLA-A2+ had NY-ESO-1b testing, patients who were HLA-DP4+ had NY-ESO-DP4 testing, and patients who were both HLA-A2+ and HLA-DP4+ had NY-ESO-1b and NY-ESO-DP4 testing.
Number of Patients With Treatment-emergent Adverse EventsContinuously for up to 20 monthsToxicity was graded in accordance with the National Cancer Institute (NCI) Common Toxicity Criteria (CTC), version 3.0. Treatment-emergent adverse events (TEAEs) were reported based on clinical laboratory tests, physical examinations, and vital signs from pre-treatment through the study period.
Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensUp to 20 monthsIntracellular cytokine staining assays were performed at Screening, Days 85 and 197, Month 6, and Month 12 to evaluate the release of interferon-gamma by CD4 and CD8 T cells following study injections.

Countries

United States

Participant flow

Participants by arm

ArmCount
rV- and rF-NY-ESO-1
Patients received a single intradermal injection of rV-NY-ESO-1 (3.1 × 10\^7 PFU) on Day 1, followed by subcutaneous injections of rF-NY-ESO-1 (7.41 × 10\^7 PFU) on Days 29, 57, 85, 113, 141, and 169 or until observation of treatment-related ≥ grade 3 toxicity or disease progression.
23
Total23

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyPhysician Decision1
Overall StudyProgressive disease18

Baseline characteristics

CharacteristicrV- and rF-NY-ESO-1
Age, Continuous55 years
Body mass index29.5 kg/m^2
STANDARD_DEVIATION 4.7
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
23 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Karnofsky Performance Status
100
16 Participants
Karnofsky Performance Status
70
1 Participants
Karnofsky Performance Status
80
3 Participants
Karnofsky Performance Status
90
3 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
23 Participants
Region of Enrollment
United States
23 participants
Sex: Female, Male
Female
23 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 23
other
Total, other adverse events
23 / 23
serious
Total, serious adverse events
4 / 23

Outcome results

Primary

Percentage of Patients in Remission at 1 Year

Time to failure (TTF) was evaluated as the crude proportion of patients in remission at 1 year, calculated as: 100 x (number of patients in remission at 1 year)/(number of patients with known status at 1 year). The Kaplan-Meier cumulative estimate of the proportion of patients in remission at 1 year was also calculated.

Time frame: 12 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. One patient with breast cancer was treated in the protocol under compassionate use and is excluded from the Full Analysis Set.

ArmMeasureGroupValue (NUMBER)
rV- and rF-NY-ESO-1Percentage of Patients in Remission at 1 YearCrude rate38.1 percentage of participants
rV- and rF-NY-ESO-1Percentage of Patients in Remission at 1 YearKaplan-Meier cumulative rate38.8 percentage of participants
Secondary

Mean Absolute Cancer Antigen-125 Values Over Time on Study

Blood samples were collected to measure serum levels of tumor marker cancer antigen (CA)-125 at Screening and on Days 1, 29, 57, 85, 113, 141, 169, and 197 and every 2 months for at least 12 months following Day 197.

Time frame: Up to 20 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. One patient with breast cancer was treated in the protocol under compassionate use and is excluded from the Full Analysis Set.

ArmMeasureGroupValue (MEAN)Dispersion
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Baseline17.9 U/mLStandard Deviation 15.4
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Day 2927.5 U/mLStandard Deviation 40.7
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Day 5774.8 U/mLStandard Deviation 203.7
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Day 8512.8 U/mLStandard Deviation 9.6
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Day 11320.4 U/mLStandard Deviation 33.6
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Day 14111.8 U/mLStandard Deviation 7.2
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Day 16914.1 U/mLStandard Deviation 9.3
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyCA-125 at Day 19716.0 U/mLStandard Deviation 13.4
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyFollow-up at Month 280.7 U/mLStandard Deviation 205.9
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyFollow-up at Month 416.0 U/mLStandard Deviation 14.6
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyFollow-up at Month 680.4 U/mLStandard Deviation 187.2
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyFollow-up at Month 810.6 U/mLStandard Deviation 3.5
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyFollow-up at Month 1059.5 U/mLStandard Deviation 120.5
rV- and rF-NY-ESO-1Mean Absolute Cancer Antigen-125 Values Over Time on StudyFollow-up at Month 1216.8 U/mLStandard Deviation 12.6
Secondary

Mean Time to Failure Among Patients Who Progressed On Study

TTF was calculated as the number of days from the first dose until the patient discontinued due to progressive disease. Patients who completed the study or discontinued for other reasons were considered censored at the day of their last study visit, including the follow-up visits after Day 197. Progression was defined using the Response Evaluation Criteria In Solid Tumors (RECIST \[version 1.0\]) as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Time frame: Up to 20 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. TTF was calculated for the subset of patients who had disease progression at any time.

ArmMeasureValue (MEAN)Dispersion
rV- and rF-NY-ESO-1Mean Time to Failure Among Patients Who Progressed On Study253.1 daysStandard Deviation 160.4
Secondary

Number of Patients With Best Overall Tumor Response

Tumor responses were evaluated using computed tomography and were categorized according to RECIST (version 1.0) at Screening, on Days 85 and 197 and every 2 months thereafter for at least 12 months. Per RECIST, target lesions are categorized as follows: Complete Response (CR): Disappearance of all target lesions (no evaluable disease); Partial Response (PR): ≥ 30% decrease in the sum of the longest diameter of target lesions; Progressive Disease (PD): ≥ 20% increase in the sum of the longest diameter of target lesions; Stable Disease (SD): small changes that do not meet above criteria.

Time frame: Up to 20 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. One patient with breast cancer was treated in the protocol under compassionate use and is excluded from the Full Analysis Set.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 85Stable Disease3 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 85Progressive Disease0 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 85No Evaluable Disease15 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 85Missing/Not Done4 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 197Stable Disease3 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 197Progressive Disease1 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 197No Evaluable Disease11 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at Day 197Missing/Not Done7 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at 12-Month Follow-upStable Disease0 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at 12-Month Follow-upProgressive Disease0 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at 12-Month Follow-upNo Evaluable Disease4 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at 12-Month Follow-upMissing/Not Done18 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at End of StudyStable Disease3 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at End of StudyProgressive Disease4 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at End of StudyNo Evaluable Disease0 Participants
rV- and rF-NY-ESO-1Number of Patients With Best Overall Tumor ResponseResponse at End of StudyMissing/Not Done15 Participants
Secondary

Number of Patients With Delayed-Type Hypersensitivity Reactions Following Vaccination

NY-ESO-1 antigen-specific delayed-type hypersensitivity (DTH) was measured by skin test at Screening and on Days 113 and 197. All patients were tested for the NY-ESO-1 protein, with additional DTH testing as follows: patients who were HLA-A2+ had NY-ESO-1b testing, patients who were HLA-DP4+ had NY-ESO-DP4 testing, and patients who were both HLA-A2+ and HLA-DP4+ had NY-ESO-1b and NY-ESO-DP4 testing.

Time frame: Up to 6 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. One patient with breast cancer was treated in the protocol under compassionate use and is excluded from the Full Analysis Set.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1 protein: Induration at Screening1 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1 protein: Redness at Screening5 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1 protein: Induration at Day 1131 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1 protein: Redness at Day 1134 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1 protein: Induration at Day 1970 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1 protein: Redness at Day 1971 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1b: Induration at Screening1 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1b: Redness at Screening1 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1b: Induration at Day 1130 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1b: Redness at Day 1130 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1b: Induration at Day 1970 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-1b: Redness at Day 1970 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-DP4: Induration at Screening0 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-DP4: Redness at Screening2 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-DP4: Induration at Day 1130 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-DP4: Redness at Day 1130 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-DP4: Induration at Day 1970 Participants
rV- and rF-NY-ESO-1Number of Patients With Delayed-Type Hypersensitivity Reactions Following VaccinationNY-ESO-DP4: Redness at Day 1970 Participants
Secondary

Number of Patients With Detectable T-cell Responses Following Vaccination

NY-ESO-1-specific CD8+ T cells (human leukocyte antigen \[HLA\]-A2 patients only) and NY-ESO-1-specific CD4+ T cells (HLA-DP4 patients only) were measured by interferon-gamma enzyme-linked immunosorbent spot (ELISPOT) assay. The response to the ELISPOT assay was considered to be positive if the number of spots in the peptide-exposed well was 2-fold or more higher than the number of spots in the unstimulated well, and if there was a minimum of 10 (after subtraction of background spots) peptide-specific spots/25,000 T-cells, or less if T-cell clones were used.

Time frame: Up to 20 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. One patient with breast cancer was treated in the protocol under compassionate use and is excluded from the Full Analysis Set.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
rV- and rF-NY-ESO-1Number of Patients With Detectable T-cell Responses Following VaccinationDetectable CD4+ T-cell response20 Participants
rV- and rF-NY-ESO-1Number of Patients With Detectable T-cell Responses Following VaccinationDetectable CD8+ T-cell response10 Participants
Secondary

Number of Patients With NY-ESO-1 and LAGE-1-specific Immunity

Specific antibody response to the NY-ESO-1 and LAGE-1 antigen was measured by enzyme-linked immunosorbent assay (ELISA) at Screening, Days 29, 57, 85, 113, 141, 169, 197, Month 6, and Month 12.

Time frame: Up to 20 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. One patient with breast cancer was treated in the protocol under compassionate use and is excluded from the Full Analysis Set.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityScreening: NY-ESO-1 Positive3 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityScreening: LAGE-1 Positive2 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 29: NY-ESO-1 Positive7 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 29: LAGE-1 Positive5 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 57: NY-ESO-1 Positive6 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 57: LAGE-1 Positive4 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 85: NY-ESO-1 Positive5 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 85: LAGE-1 Positive4 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 113: NY-ESO-1 Positive6 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 113: LAGE-1 Positive3 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 141: NY-ESO-1 Positive5 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 141: LAGE-1 Positive3 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 169: NY-ESO-1 Positive5 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 169: LAGE-1 Positive3 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 197: NY-ESO-1 Positive5 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityDay 197: LAGE-1 Positive3 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityMonth 6: NY-ESO-1 Positive4 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityMonth 6: LAGE-1 Positive0 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityMonth 12: NY-ESO-1 Positive1 Participants
rV- and rF-NY-ESO-1Number of Patients With NY-ESO-1 and LAGE-1-specific ImmunityMonth 12: LAGE-1 Positive1 Participants
Secondary

Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer Antigens

Intracellular cytokine staining assays were performed at Screening, Days 85 and 197, Month 6, and Month 12 to evaluate the release of interferon-gamma by CD4 and CD8 T cells following study injections.

Time frame: Up to 20 months

Population: The Full Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1 and met the entry criterion of having epithelial ovarian, fallopian tube, or primary peritoneal carcinoma. One patient with breast cancer was treated in the protocol under compassionate use and is excluded from the Full Analysis Set.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensScreening: CD4Positive10 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensScreening: CD4Negative12 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensScreening: CD8Positive2 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensScreening: CD8Negative20 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 85: CD4Positive13 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 85: CD4Negative5 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 85: CD8Positive6 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 85: CD8Negative12 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 197: CD4Positive12 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 197: CD4Negative3 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 197: CD8Positive5 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensDay 197: CD8Negative9 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 6: CD4Positive6 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 6: CD4Negative2 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 6: CD8Positive3 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 6: CD8Negative5 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 12: CD4Positive3 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 12: CD4Negative1 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 12: CD8Positive1 Participants
rV- and rF-NY-ESO-1Number of Patients With Release of Interferon-Gamma by T Cells in Response to Cancer AntigensMonth 12: CD8Negative3 Participants
Secondary

Number of Patients With Treatment-emergent Adverse Events

Toxicity was graded in accordance with the National Cancer Institute (NCI) Common Toxicity Criteria (CTC), version 3.0. Treatment-emergent adverse events (TEAEs) were reported based on clinical laboratory tests, physical examinations, and vital signs from pre-treatment through the study period.

Time frame: Continuously for up to 20 months

Population: The Safety Analysis Set includes all patients who received at least 1 injection with rV-NY-ESO-1 or rF-NY-ESO-1.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsMaximum grade 3 TEAE3 Participants
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsAny TEAE23 Participants
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsMaximum grade 1 TEAE3 Participants
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsMaximum grade 2 TEAE15 Participants
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsMaximum grade 4 TEAE2 Participants
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsTreatment-related TEAE9 Participants
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsSerious TEAE4 Participants
rV- and rF-NY-ESO-1Number of Patients With Treatment-emergent Adverse EventsTEAE Leading to Treatment Discontinuation2 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026