Safety and Efficacy Study of TVGV-1 Vaccine to Treat HPV Induced Cervical HSIL

THEVAX Genetics Vaccine

Status and phase: Unknown; Phase 2

Conditions: High-Grade Squamous Intraepithelial Lesions; Human Papillomavirus

Treatments: Biological: Placebo; Biological: TVGV-1; Biological: GPI-0100

Study type: Interventional

Funder types: Industry

Identifiers

NCT02576561

VAX 02-01

Details and patient eligibility

About

The purpose of this research study is to test the safety and effectiveness of the investigational study vaccine, called TVGV-1. The study will test the vaccine in women with high grade HPV cervical infection.

Full description

The purpose of the Phase 2a Study VAX 02-01 is to assess the safety and activity of TVGV-1 vaccine construct in achieving the absence of histologic HSIL (CIN2/3) (regression to LSIL or less) as assessed by biopsy at last study Visit 11, Day 270.

The objective of the TVGV-1 program is to develop a non-surgical alternative that is reliable, safe, and would avoid potential surgical risks such as preterm birth, perinatal mortality, risk of infertility, incontinence and disfigurement, as well as reduced cost and inconvenience for an otherwise economically productive young subject population.

Enrollment: 10 patients

Sex: Female

Ages: 18 to 55 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Female age 18 to 55 years
2. Written informed consent in accordance with institutional guidelines
3. Negative pregnancy test (urine and blood tests)
4. Women of child bearing potential must agree to use contraception through one menstrual cycle post end of study or if early withdrawal, through what would have been visit 11. Methods include intrauterine device or double barrier method, hormonal contraceptive in combination with a double barrier method.
5. Patients who have ONLY HPV 16 OR HPV 16 AND 18 and no other High-Risk HPV by Cobas test will be included.
6. Histologically confirmed, positive HSIL of CIN2+ or higher (only CIN2+/3 subjects will be selected) cervical biopsy, confirmed by external (independent) pathologist panel within the 12 weeks prior to enrollment. If the standard care biopsy is not available for evaluation by the independent pathologist, a fresh biopsy and endocervical curettage will be required. The extent of colposcopic HSIL disease should not involve more than two quadrants of the cervix. Biopsies should be taken from each affected quadrant
7. Adequate visualization of entire cervix, cervical lesion(s) and squamous-columnar junction
8. Normal electrocardiogram (ECG), laboratory values (chemistry, complete blood count) and urinalysis, as judged Grade 0-1 by per National Cancer Institute Common Toxicity Criteria (NCI-CTC)
9. Agrees to Loop Electrosurgical Excision Procedure (LEEP), Cold Knife Conization (CKC) or Hysterectomy being performed at the end of study according to the standard-of-care

Exclusion criteria

1. History of cancer (excluding basal cell carcinoma of the skin) including cervical cancer
2. Eastern Cooperative Oncology Group (ECOG) performance status >2 (See Appendix G)
3. Administration of any blood product within 3 months of enrollment
4. Active infection requiring antimicrobial treatment that would interfere with interpretation of adverse events, cutaneous reactions or efficacy. Treatment of minor concurrent infections should be limited to less than 10 days.
5. Administration of any vaccine within 8 weeks of enrollment and within 4 weeks for flu vaccine.
6. Participation in any study with an investigational compound or device within 30 days prior to signing informed consent
7. Any hematologic disorder involving platelets or clotting abnormalities or any condition requiring treatment with transfusions, anticoagulants except platelet inhibitors (NSAIDs as needed for pain are permitted)
8. Active drug or alcohol use or dependence that, in the opinion of the Site Investigator, would interfere with adherence to study protocol
9. Skin conditions that require consistent use of topical corticosteroids or other local or systemic therapy that may interfere with interpretation or description of skin-related adverse events linked to vaccination
10. The standard criteria for prospective clinical trials of medications developed by Drug-Induced Liver Injury Network (established by The National Institute of Diabetes and Digestive and Kidney Diseases) will be used to assess the laboratory test abnormalities. Normal range for these labs will typically be 5 - 40 IU/L for AST; 7 - 56 IU/L for ALT; 0.2 - 1.2 mg/dL for bilirubin. Subjects will be excluded if values are x 2-x 2.5 the upper limit
11. Evidence of hematopoietic, cardiovascular, hepatic, renal, neurologic, psychiatric, dermatologic, immune disorder, or other disease that may interfere with assessment of safety or efficacy of vaccine activity as indicated in study objectives
12. Any known allergic reaction to vaccine components
13. Any other medical condition(s) that, in the judgment of the Site Investigator, might interfere with the study or require treatment that might interfere with the study
14. Family member of the investigation study staff
15. Pregnant or breast-feeding
16. Inability to provide informed consent
17. A subject with a history or expectation of noncompliance with medications or treatment protocol
18. Receipt of (e.g. Gardasil® or Cervarix®) HPV preventative vaccines within 8 years of study enrollment
19. Excessive use of acetaminophen or other potentially hepatotoxic drugs

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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10 participants in 9 patient groups, including a placebo group

TVGV-1 (cohort 1)

Experimental group

Description:

Antigen + Adjuvant - 0.6 mg lyophilized PEK fusion protein + 0.6 ml\* GPI- 0100 (1:1 ratio)

Treatment:

Biological: TVGV-1

GPI-0100 (cohort 1)

Active Comparator group

Description:

Adjuvant Alone - 0 mg lyophilized PEK fusion protein. 0.6 mg lyophilized placebo cake + 0.6 ml\* GPI- 0100 (1:1 ratio)

Treatment:

Biological: GPI-0100

Placebo (cohort 1)

Placebo Comparator group

Description:

Placebo- 0 mg lyophilized PEK fusion protein. 0.6 mg lyophilized placebo cake + 0.6 ml placebo-diluent (1:1 ratio)

Treatment:

Biological: Placebo

TVGV-1 (cohort 2)

Experimental group

Description:

Antigen + Adjuvant - 0.9 mg lyophilized PEK fusion protein + 0.9 ml\* GPI- 0100 (1:1 ratio)

Treatment:

Biological: TVGV-1

GPI-0100 (cohort 2)

Active Comparator group

Description:

Adjuvant Alone - 0 mg lyophilized PEK fusion protein. 0.9 mg lyophilized placebo cake + 0.9 ml\* GPI- 0100 (1:1 ratio)

Treatment:

Biological: GPI-0100

Placebo (cohort 2)

Placebo Comparator group

Description:

Placebo - 0 mg lyophilized PEK fusion protein. 0.9 mg lyophilized placebo cake + 0.9 ml placebo diluent (1:1 ratio)

Treatment:

Biological: Placebo

TVGV-1 (cohort 3)

Experimental group

Description:

Antigen + Adjuvant - 1.2 mg lyophilized PEK fusion protein + 1.2 ml\* GPI- 0100 (1:1 ratio)

Treatment:

Biological: TVGV-1

GPI-0100 (cohort 3)

Active Comparator group

Description:

Adjuvant Alone - 0 mg lyophilized PEK fusion protein + 1.2 mg lyophilized placebo cake 1.2 ml\* GPI- 0100 (1:1 ratio)

Treatment:

Biological: GPI-0100

Placebo (cohort 3)

Placebo Comparator group

Description:

Placebo - 0 mg lyophilized PEK fusion protein. 1.2 mg lyophilized placebo cake + 1.2 ml placebo-diluent (1:1 ratio)

Treatment:

Biological: Placebo