NCT06015854

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

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
18

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Mar 2021

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 23, 2021

Completed
2.4 years until next milestone

First Submitted

Initial submission to the registry

August 23, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 29, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 6, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2024

Completed
Last Updated

August 29, 2023

Status Verified

August 1, 2023

Enrollment Period

2.9 years

First QC Date

August 23, 2023

Last Update Submit

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

EXPERIMENTAL

Patients with histological proven HPV16-positive cervical intraepithelial neoplasia grade 3.

Biological: Vvax001 therapeutic cancer vaccine

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.

HPV16+ CIN3

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Study Sites (1)

University Medical Center Groningen (UMCG)

Groningen, 9700 RB, Netherlands

RECRUITING

MeSH Terms

Conditions

Uterine Cervical Dysplasia

Condition Hierarchy (Ancestors)

Precancerous ConditionsNeoplasmsUterine Cervical DiseasesUterine DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital Diseases

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

Locations