This was a Phase 1, non-randomized, open-label, multicenter study of the ALVAC(2)-NY-ESO-1(M)/TRICOM vaccine administered with the granulocyte macrophage-colony stimulating factor (GM-CSF) sargramostim in patients with NY-ESO-1- or LAGE-1-positive epithelial ovarian, fallopian tube, or primary peritoneal cavity cancers who had completed standard therapy for primary or recurrent disease and would have normally entered a period of observation. The primary study objective was to determine the safety and tolerability of study vaccination, with secondary objectives including the determination of clinical and immunological responses.
Patients received subcutaneous (SC) injections with 0.5 mL of ALVAC(2)-NY-ESO-1(M)/TRICOM on Day 1 and 100 μg of the GM-CSF sargramostim on Days 1 through 4 in continuous 28-day cycles for up to 6 cycles. No dose escalation of either vaccine component was permitted. Patients received study vaccinations until disease progression or unacceptable toxicity. Safety was evaluated by continuous monitoring of adverse events (AEs), concomitant medications, and vital signs, as well as through hematology and chemistry laboratory testing and physical examinations. Efficacy was determined through tumor response evaluations, cancer antigen (CA)-125 levels, and cellular and humoral immune responses (i.e., NY-ESO-1-specific T cells, antibodies to NY-ESO-1 and ALVAC, and delayed-type hypersensitivity \[DTH\] testing).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
13
The vaccine comprises the modified canary pox vector, ALVAC(2), inserted with the following genes: NYESO-1(M), TRICOM (LFA-3, ICAM-1, B7.1), vvE3L, vvK3L. The vaccine is administered at a dose of 0.5 mL SC.
The GM-CSF sargramostim is administered at a dose of 100 μg SC.
Roswell Park Cancer Institute
Buffalo, New York, United States
NYU Cancer Institute at New York University Medical Center
New York, New York, United States
Number of Patients With Treatment-emergent Adverse Events
Toxicity was graded in accordance with the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE), 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 26 weeks
Number of Patients With Best Overall Tumor Response
Tumor responses were evaluated using computed tomography and categorized according to the Response Evaluation Criteria in Solid Tumors (RECIST) (version 1.0) at baseline, at Week 12 (± 28 days), and at Week 24 (end of study). Per RECIST, target lesions are categorized as follows: Complete Response (CR): Disappearance of all target lesions \[no evidence of disease\]; 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: Baseline and Weeks 12 and 24
Median Progression-free Survival (PFS)
PFS was calculated from the date of the first dose of study drug to the date of documented progression or death, whichever occurred first. Patients without disease progression or death had their observation time censored at the date of the last valid disease assessment. PFS was summarized using Kaplan-Meier product-limit estimators.
Time frame: Baseline and up to approximately 24 weeks
Median Cancer Antigen 25 (CA-125) Values on Study
Blood samples were collected for CA-125 testing as a component of disease evaluations at Baseline and Weeks 8, 12, 16, 20, and 24 (end of study) or every 2 to 3 months on study according to standard institutional practice.
Time frame: Baseline through Week 24
Number of Patients With NY-ESO-1 and LAGE-1 Antigen Positivity
Blood samples were collected for measurement of NY-ESO-1 and LAGE-1 antigen positivity at Baseline and Weeks 4, 8 ,12, 16, 20, and 24 (end of study). Antibody testing was performed by enzyme-linked immunosorbent assay (ELISA).
Time frame: Baseline through Week 24
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.