Vaccine Therapy in Treating Patients With Stage III-IV or Recurrent Ovarian Cancer

Phase 1

Completed

• Conditions: Stage III Ovarian Germ Cell Tumor; Stage IV Ovarian Epithelial Cancer; Stage III Ovarian Epithelial Cancer; Stage IV Ovarian Germ Cell Tumor
• Interventions: Biological: pUMVC3-hIGFBP-2 multi-epitope plasmid DNA vaccine; Other: laboratory biomarker analysis

• Registration Number: NCT01322802
• Lead Sponsor: University of Washington

Brief Summary

This phase I trial is studying the side effects of vaccine therapy in treating patients with stage III-IV or recurrent ovarian cancer. Vaccines made from deoxyribonucleic acid (DNA) may help the body build an effective immune response to kill tumor cells.

Detailed Description

PRIMARY OBJECTIVES:

I. To determine the safety of an insulin like growth factor binding protein 2 (IGFBP-2) Th polyepitope plasmid based vaccine in patients with advanced stage or recurrent ovarian cancer.

SECONDARY OBJECTIVES:

I. To determine the immunogenicity of IGFBP-2 Th polyepitope plasmid based vaccine in patients with advanced stage or recurrent ovarian cancer.

II. To determine whether intermolecular epitope spreading occurs with the generation of an IGFBP-2 specific Th1 immune response.

III. To determine whether IGFBP-2 vaccination modulates T regulatory cells.

OUTLINE:

Patients receive pUMVC3-hIGFBP-2 multi-epitope plasmid DNA vaccine intradermally (ID) monthly for 3 months.

After completion of study treatment, patients are followed up at 1, 3, 6, and 12 months, and then every 6 months for 5 years.

Study Timeline

• Study First Submitted: 2011-03-07
• Study First Submitted QC: 2011-03-23
• Study First Posted: 2011-03-25
• Study Start: 2012-03-06
• Primary Completion: 2015-01-09
• Study Completion: 2020-12-01
• Status Verified: 2021-02
• Last Update Submitted: 2021-02-22
• Last Update Posted: 2021-02-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 25

Inclusion Criteria

• Patients with advanced stage (III/IV) or recurrent ovarian cancer who have been treated to complete remission with standard therapies including primary debulking surgery
• Cancer antigen 125 (CA-125) level within normal limits for the testing laboratory must be documented 90 days prior to enrollment when the assessment of CA-125 is applicable
• Patients must be at least 28 days post cytotoxic chemotherapy, and/or monoclonal antibody therapy, prior to enrollment
• Patients must be at least 28 days post systemic steroids prior to enrollment
• Patients must have Eastern Cooperative Oncology Group (ECOG) Performance Status Score of =< 2
• Patients must have recovered from major infections and/or surgical procedures, and in the opinion of the investigator, not have any significant active concurrent medical illnesses precluding protocol treatment
• Estimated life expectancy of more than 6 months
• White Blood Cell (WBC) >= 3000/mm^3
• Hemoglobin (Hgb) >= 10 mg/dl
• Hematocrit (Hct) >= 28%
• Serum creatinine =< 2.0 mg/dl or creatinine clearance > 60 ml/min
• Total bilirubin =< 2.5 mg/dl
• Aspartate aminotransferase (AST)/serum glutamic oxaloacetic transaminase (SGOT) =< 3 times upper limit of normal (ULN)
• Blood glucose < 1.5 ULN

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Exclusion Criteria

• Patients with any of the following cardiac conditions: symptomatic restrictive cardiomyopathy; unstable angina within 4 months prior to enrollment; New York Heart Association functional class III-IV heart failure on active treatment; symptomatic pericardial effusion
• Uncontrolled diabetes
• Patients with any contraindication to receiving sargramostim (rhuGM-CSF) based products
• Ovarian cancer of a low malignant potential phenotype or clear cell histology
• Patients with any clinically significant autoimmune disease uncontrolled with treatment
• Patients who are currently receiving an anti-IGF-IR monoclonal antibody as part of their treatment regimen
• Patients who are simultaneously enrolled in any other treatment study
• All subjects able to bear children

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Treatment (pUMVC3-hIGFBP-2 multi-epitope plasmid DNA vaccine)	laboratory biomarker analysis	Patients receive pUMVC3-hIGFBP-2 multi-epitope plasmid DNA vaccine ID monthly for 3 months.
Treatment (pUMVC3-hIGFBP-2 multi-epitope plasmid DNA vaccine)	pUMVC3-hIGFBP-2 multi-epitope plasmid DNA vaccine	Patients receive pUMVC3-hIGFBP-2 multi-epitope plasmid DNA vaccine ID monthly for 3 months.

Primary Outcome Measures

Name	Time	Method
Safety as assessed per Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0	Up to 16 months	Demographic and background characteristics obtained at enrollment will be listed and summarized. The type and grade of toxicities noted during the immunization regimen will be summarized. All adverse events noted by the investigator will be tabulated according to the affected body system. Descriptive statistics will be used to summarize changes from baseline in clinical laboratory parameters.

Secondary Outcome Measures

Name	Time	Method
Disease-free survival	Up to 5 years	A questionnaire will be sent to the patient's primary oncologist requesting laboratory evaluation of toxicity, CA-125, and the patient's disease free and overall survival status.
Levels of regulatory T- cells (Tregs) over the course of immunization to detect modulation of Tregs with vaccination	Up to 16 months	Assessed by flow cytometry of PBMC. In addition, epitope spreading and T regulatory cells will be defined as present or absent, and the probability of each will be estimated as a simple proportion as above with toxicity.
Immunogenicity, via cellular immune response and humoral immune response, as assessed by the generation of IGFBP-2 specific T cells and IgG antibodies	Up to 16 months	Cellular immune response will be defined by the magnitude of the Th1 antigen specific immune response using IFN-gamma enzyme-linked immunosorbent spot (ELISPOT). Humoral immune response will be measured by enzyme-linked immunosorbent assay (ELISA) and serum antibody avidity for IGFBP-2 using ELISA to determine an avidity index (AI) before and after vaccination. Spearman's correlation coefficient will be used to estimate the correlation between two continuous measures.
Epitope spreading with the generation of an IGFBP-2 Th1 immune response	Up to 16 months	Peripheral blood mononuclear cells (PBMC) will be assessed by ELISPOT for immunity to a panel of immunogenic ovarian cancer related proteins: topoisomerase II-alpha (a), p53, IGF-IR, FASCIN-1, and MMP-7. Epitope spreading will have been considered to occur if new immune responses are generated to any of these antigens during the course of the study. In addition, epitope spreading and T regulatory cells will be defined as present or absent, and the probability of each will be estimated as a simple proportion as above with toxicity.
Overall survival	Up to 5 years	A questionnaire will be sent to the patient's primary oncologist requesting laboratory evaluation of toxicity, CA-125, and the patient's disease free and overall survival status

Trial Locations

Locations (1)

Fred Hutchinson Cancer Research Center/University of Washington Cancer Consortium; 🇺🇸 Seattle, Washington, United States