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Clinical Trials List

Protocol NumberPVX4
NCT Number(ClinicalTrials.gov Identfier)NCT07454915
Active

2025-07-01 - 2029-06-30

Phase II

Recruiting9

ICD-10D06.0

Carcinoma in situ of endocervix

ICD-10D06.1

Carcinoma in situ of exocervix

ICD-10D06.7

Carcinoma in situ of other parts of cervix

ICD-10D06.9

Carcinoma in situ of cervix, unspecified

ICD-9233.1

Carcinoma in situ of cervix uteri

PVX4 for the Treatment of Human Papilloma Virus (HPV)16+ Cervical Dysplasia

  • Trial Applicant

    Linical

  • Sponsor

  • Trial scale

    Multi-Regional Multi-Center

  • Update

    2026/06/08

Investigators and Locations

Principal Investigator 張志隆 Division of Obstetrics & Gynecology

Co-Principal Investigator

  • 王有利 Division of Obstetrics & Gynecology
  • 陳楨瑞 Division of Obstetrics & Gynecology

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Chyong-Huey Lai Division of Obstetrics & Gynecology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 許世典 Division of Obstetrics & Gynecology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Timothy Chiu Division of Obstetrics & Gynecology

Co-Principal Investigator

  • 陳子健 Division of Obstetrics & Gynecology
  • 邱彥諧 Division of Obstetrics & Gynecology
  • 張景文 Division of Obstetrics & Gynecology

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 陳宇立 Division of Obstetrics & Gynecology

Co-Principal Investigator

  • 陳啓豪 Division of Obstetrics & Gynecology
  • 吳佳穎 Division of Obstetrics & Gynecology
  • 郭千慈 Division of Obstetrics & Gynecology

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 吳貞璇 Division of Obstetrics & Gynecology

Co-Principal Investigator

  • 陳盈儀 Division of Obstetrics & Gynecology
  • 蔡景州 Division of Obstetrics & Gynecology
  • 王映文 Division of Obstetrics & Gynecology
  • 傅宏鈞 Division of Obstetrics & Gynecology
  • 黃昭誠 Division of Others
  • 林浩 Division of Obstetrics & Gynecology
  • 歐育哲 Division of Obstetrics & Gynecology

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Yi-Jen Chen Division of Obstetrics & Gynecology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Lian-Shung Yeh Division of Obstetrics & Gynecology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 吳珮瑩

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Condition/Disease

Cervical Intraepithelial Neoplasia Grade 2/3、Human Papilloma Virus Infection Type 16

Objectives

To evaluate the safety and efficacy of administering the pBI-4 vaccine via the TriGrid™ electroporation delivery system for the treatment of HPV16 infection and related precancerous cervical lesions.

Test Drug

liquid

Active Ingredient

pBI-4 plasmid DNA

Dosage Form

084

Dosage

1.0mg/ 1.0 mL, 1.0 mL/vial

Endpoints

At month 6, the PVX4 treatment group and the placebo group showed pathological regression to below CIN1 and negative HPV16 results using Roche Cobas testing.

Inclution Criteria

Inclusion Criteria:

Female subjects 18-60 years old with biopsy-confirmed high grade cervical intraepithelial neoplasia (CIN2/3) confirmed by central review.
Patients whose cytobrush samples are HPV16+ by Roche Cobas genotyping test. Co-infections with HPV types other than HPV16 are permissible for study entry
HIV negative
Patients who are able and willing to comply with all study procedures, and with anticipated availability for the planned follow-up period of one year
Patients who are of childbearing potential agree to remain sexually abstinent, use methods of contraception (e.g. oral contraception, barrier methods, spermicide, intrauterine device (IUD)), or have a partner who is sterile (i.e., vasectomy) through 6 months.
Patients must have adequate organ function at the time of enrollment as defined by the following parameters: white blood cell count >3,000/mcL; lymphocyte number >500/mcL; absolute neutrophil count >1,000/mcL; platelets >90,000/mcL; hemoglobin >9 g/dL; total bilirubin <3 X the institutional limit of normal; aspartate aminotransferase (AST [SGOT]) / alanine aminotransferase (ALT [SGPT]) <3 X the institutional limit of normal; creatinine <2.5X the institutional limit of normal.

Exclusion Criteria

Exclusion Criteria:

Patients who are attempting pregnancy within 6 months, pregnant, or breastfeeding.
Patients with immunodeficiency, or treatment with immunosuppressive medications
Administration of any blood product within 3 months of enrollment.
Administration of any licensed vaccine within 2 weeks of enrollment (4 weeks for a live vaccine)
Participation in a study with an investigational compound or device within 30 days of signing informed consent.
History of seizures (unless seizure free for 5 years)
Previous cancer history within the past 5 years, except localized skin cancer.
Patients who have had chemotherapy, radiation, biological cancer therapy, or other investigational agents within 28 days prior to the first dose of study drug.
Patients who have had surgery within 28 days, excluding minor procedures (dental work, skin biopsy, etc).
Patients with an uncontrolled intercurrent illness including, but not limited to, ongoing, or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
Patients who have an active autoimmune disease (e.g., rheumatoid arthritis, systemic lupus erythematosus (SLE), ulcerative colitis, Crohn's Disease, multiple sclerosis (MS), ankylosing spondylitis).
Previous cervical conization or LEEP procedure or previous total hysterectomy due to cervical lesions at enrollment
High-grade intraepithelial lesions (CIN2/3) encompassing more than 180-degree (more than 2 quarters) of cervix
Positive HBV PCR if Hepatitis B surface antigen positive
Positive HCV PCR if anti-HCV positive
Border of high-grade intraepithelial lesions (CIN2/3) could not be completely observed by colposcope and positive for high grade disease by endocervical curettage.
Cervical biopsy and/or ECC of adenocarcinoma in situ (AIS)
Pre-biopsy Pap of Atypical Glandular Cells (AGC)/AGC favor neoplasm, squamous cell carcinoma (SCC), or cervical biopsy of CIN2/3 with postmenopausal bleeding
Participant has:

Less than 2 acceptable potential injection sites for IM injection and electroporation considering the left and right medial deltoid, and anterolateral quadriceps muscles. A site for injection and electroporation is not acceptable if there is inadequate muscle mass to support at least a 19 mm/0.75 inch injection depth or a skinfold thickness measurement of ≥50 mm as assessed using the provided caliper. Eligible injection sites must also be free from tattoos, hypertrophic skin patches, keloids or other skin conditions which could interfere with the administration procedure or subsequent assessment of local reactogenicity.
Note: To ensure adequate muscle mass for administrations, for participants with a weight ≤65 kg, potentially eligible administration sites are confined to the outer aspect of the upper thigh (left or right vastus lateralis muscle) (i.e., the left and right medial deltoid are not eligible administration sites).
Contraindication to intramsucular injections and blood draws.
A metal implant or implantable device within the area of the electroporation injection site at > 2 of the eligible injection sites.
A nonremovable electronic stimulation device, such as cardiac demand pacemakers, automatic implantable cardiac defibrillator, nerve stimulators, or deep brain stimulators.
Participant is an employee of the investigator or study site, with direct involvement in the proposed study or other studies under the direction of that investigator or study site, as well as family members of the employees or the investigator.
Vulnerable participants (e.g., incarcerated individuals, individuals under a legal protection measure).

The Estimated Number of Participants

  • Taiwan

    128 participants

  • Global

    138 participants