Vvax001 Cancer Vaccine in Premalignant Cervical Lesions - Phase II
Vvax
A Phase II Study to Determine the Efficacy and Safety of Vvax001, a Therapeutic Semliki Forest Virus Based Cancer Vaccine, in Patients With HPV-16 Induced Grade 3 Cervical Intraepithelial Neoplasia
1 other identifier
interventional
18
1 country
1
Brief Summary
This is an open label phase II study in patients with newly diagnosed human papilloma virus type 16 (HPV16) induced cervical intraepithelial neoplasia grade 3 (CIN3). Patients will be treated with three doses of Vvax001 immunization with an interval of 3 weeks between each immunization to induce histopathological regression and HPV clearance. Regression of CIN3 lesions will be monitored using colposcopy in week 9, week 17 and week 25. When complete regression of the CIN3 lesion is observed by colposcopy, a biopsy will be taken in week 25 to confirm regression histologically. A positive histologic regression is defined as a reduction from CIN3 to CIN1 or no dysplasia. Patients with a complete regression will not undergo the standard-of-care loop excision of the transformation zone (LETZ) and will be followed-up after the study by cytology at 3, 6 and 12 months. If complete regression has not occurred by 25 weeks, a standard-of-care LETZ will be performed.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Mar 2021
Typical duration for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 23, 2021
CompletedFirst Submitted
Initial submission to the registry
August 23, 2023
CompletedFirst Posted
Study publicly available on registry
August 29, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 6, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2024
CompletedAugust 29, 2023
August 1, 2023
2.9 years
August 23, 2023
August 23, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Clinical efficacy of Vvax001
Clinical efficacy is determined by a pathological regression of the premalignant CIN3 lesion in pre- versus post-treatment tissue samples. A positive histologic regression is defined as a reduction from CIN3 to CIN1, or a reduction from CIN3 to no dysplasia.
At week 25 (19 weeks after the last immunization)
Secondary Outcomes (3)
Immunogenicity of Vvax001
At weeks 7, 9, 17 and 25, respectively 1 week, 3 weeks, 11 weeks and 19 weeks after the last vaccination
HPV 16 clearance
Week 25 (19 weeks after the last immunization)
Side effects/ adverse events
up to 19 weeks after the last immunization
Study Arms (1)
HPV16+ CIN3
EXPERIMENTALPatients with histological proven HPV16-positive cervical intraepithelial neoplasia grade 3.
Interventions
Patients will receive three immunizations, with an interval of 3 weeks between each immunization at weeks 0, 3 and 6. Each vaccination will be given as two injections; 1 injection in each leg. The injections will be administered intramuscularly in the upper legs, preferably in the m. vastus lateralis.
Eligibility Criteria
You may qualify if:
- Newly diagnosed HPV16-positive CIN3.
- Age of 18 years and older.
- Patients of child-bearing potential should test negative using a serum pregnancy test and agree to utilize effective contraception during the entire treatment and follow-up period of the study.
- Written informed consent according to local guidelines.
You may not qualify if:
- PAP5 lesions.
- Previously undergone treatment for CIN lesions.
- Adenocarcinoma in situ within CIN3 lesion.
- History of an autoimmune disease or other systemic intercurrent disease that might affect the immunocompetence of the patient, or current or prior use (4 weeks before start of the study) of high dose immunosuppressive therapy.
- History of a malignancy except curatively treated low-stage tumors with a histology that can be differentiated from the cervical cancer type.
- Participation in a study with another investigational drug within 30 days prior to the enrolment in this study.
- Clinically significant findings as judged by the Investigator on screening/study entry including those from the Biochemistry, Hematology and urinalysis performed at baseline.
- Any condition that in the opinion of the investigator could interfere with the conduct of the study.
- Pregnancy.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University Medical Center Groningenlead
- Dutch Cancer Societycollaborator
- ViciniVax B.Vcollaborator
Study Sites (1)
University Medical Center Groningen (UMCG)
Groningen, 9700 RB, Netherlands
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 23, 2023
First Posted
August 29, 2023
Study Start
March 23, 2021
Primary Completion
February 6, 2024
Study Completion
April 1, 2024
Last Updated
August 29, 2023
Record last verified: 2023-08