LIBUSE: Algorithm for Cervix Carcinoma Screening in CZ Using the Detection of HPV DNA and CINtec Plus

Sponsor
AeskuLab Pathology Prague (Other)
Overall Status
Completed
CT.gov ID
NCT05578833
Collaborator
Institute of Biostatistics and analyses, Ltd. (Other)
2,426
1
49
49.6

Study Details

Study Description

Brief Summary

Cervix carcinoma has been a serious, long-term issue in the Czech Republic. The cause of nearly all cervix carcinomas is human papilomavirus (HPV). Hence the detection of the HPV genome is a more prospective screening tool with higher sensitivity than a cytological swab. As shown by comparative studies, the sensitivity of the HPV DNA test in the detection of severe pre-cancer is 35% higher on average when compared to the cytological test.

The study repeatedly determined the presence of the HPV genome, including the prevalence of selected HPV genotypes (16, 18 and other hrHPV) and conventional cytology. The relative sensitivity of the two methods was specified. In the course of the prospective follow-up, the incidence of pre-cancers and invasive tumours in the study population were specified.

Condition or Disease Intervention/Treatment Phase
  • Diagnostic Test: HPV DNA test with selective HPV 16/18 genotyping (cobas® 4800 HPV Test, Roche)
  • Diagnostic Test: p16 and Ki-67 biomarker detection in the form of dual cytological staining (CINtec Plus, Roche)
  • Diagnostic Test: standard conventional cytology PAP test

Detailed Description

Cervix carcinoma has been a serious, long-term issue in the Czech Republic. About 1,000 new cases are diagnosed every year and about 400 female patients die as a result of the disease. More than 20,000 women in the Czech Republic live with a history of cervix carcinoma therapy and the potential risk of its recurrence. Although the past years have been marked with effective organisational changes in cervix carcinoma screening thanks to which a decreasing trend of its incidence can be observed, there is a lack of substantial impact on the occurrence of advanced stages of the disease and mortality. Similar data have also been reported internationally: foreign authors analysed cases of patients with a malignant cervix tumour. They reported that 24 - 32% of females with a diagnosed malignant tumour had periodically undergone cytological screening. The reason is that the sensitivity of an individual cytological examination for detecting severe pre-cancer is limited, ranging between 40 - 75% and only increasing with repeated examinations. The negative predictive value of the cytological swab is additionally limited and reaches 0.78% in recent studies over a three-year screening interval.

The cause of nearly all cervix carcinomas is human papilomavirus (HPV). Hence the detection of the HPV genome is a more prospective screening tool with higher sensitivity than a cytological swab. The sensitivity of the validated HPV DNA test using PCR method reaches 94.5% for detecting severe pre-cancer (confidence interval 94.2 - 96.9%). As shown by comparative studies, the sensitivity of the HPV DNA test for the detection of severe pre-cancer is 35% higher on average when compared to the cytological test. The HPV DNA test in addition shows a significantly better negative three-year predictive value (0.34%) and the low value continues for at least another five years. The lower specificity of the HPV DNA test can be compensated by selective genotype specification with proof of the most frequent oncogenic genotypes HPV 16 and HPV 18. This promising procedure, validated by large multicentric randomised studies and introduced to clinical practice in several European countries, primarily uses the detection of HPV DNA.

The study repeatedly determined the presence of the HPV genome, including the prevalence of selected HPV genotypes (16, 18 and other hrHPV) and conventional cytology. The relative sensitivity of the two methods was specified. In the course of the prospective follow-up, the incidence of pre-cancers and invasive tumours in the study population were specified.

Study Design

Study Type:
Observational
Actual Enrollment :
2426 participants
Observational Model:
Case-Crossover
Time Perspective:
Prospective
Official Title:
Algorithm for Cervix Carcinoma Screening in the Czech Republic Using the Detection of HPV DNA With Selective HPV 16/18 Genotype and Special CINtec Plus Cytological Colouring
Actual Study Start Date :
Sep 1, 2017
Actual Primary Completion Date :
Apr 20, 2018
Actual Study Completion Date :
Sep 30, 2021

Outcome Measures

Primary Outcome Measures

  1. Prevalence of hrHPV positivity in the Czech population [49 months]

    The ratio of patients with a positive HPV test in the first combined screening episode and the number of examined women.

Secondary Outcome Measures

  1. Specification of prevalence of selected hrHPV genotypes [49 months]

    Representation of individual hrHPV genotypes in the first and the second screening episode in all examined women and in all HPV positive women.

  2. Detection level of pre-cancers and invasive carcinomas in the first combined screening episode (indicator of relative sensitivity of the two methods) [49 months]

    The ratio of detected diseases and the number of examined women in the first screening episode, a secondary endpoint.

  3. Incidence of pre-cancers and invasive carcinomas in the course of the follow-up [49 months]

    The cumulative incidence of diseases considering the censored patients, a secondary endpoint.

  4. Incidence of pre-cancers and invasive carcinomas after the second screening episode [49 months]

    The cumulative incidence of the disease in patients based on the initial HPV test results and initial cytology results.

Eligibility Criteria

Criteria

Ages Eligible for Study:
30 Years to 60 Years
Sexes Eligible for Study:
Female
Inclusion Criteria:
  • Informed consent signature

  • Age 30 - 60

  • Screening (not reviewing after previous abnormal cytological finding)

  • Sampling of gravid women possible

Exclusion Criteria:
  • Refusal to take part

Contacts and Locations

Locations

Site City State Country Postal Code
1 Aeskulab Patologie, ks Praha Czech Republic Czechia 160 00

Sponsors and Collaborators

  • AeskuLab Pathology Prague
  • Institute of Biostatistics and analyses, Ltd.

Investigators

  • Principal Investigator: Markéta Trnková, MD, Aeskulab Patologie, ks

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
AeskuLab Pathology Prague
ClinicalTrials.gov Identifier:
NCT05578833
Other Study ID Numbers:
  • IBA1132
First Posted:
Oct 13, 2022
Last Update Posted:
Oct 13, 2022
Last Verified:
Oct 1, 2022
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by AeskuLab Pathology Prague
Additional relevant MeSH terms:

Study Results

No Results Posted as of Oct 13, 2022