Understanding negative HPV test results with late amplification signals

Negative HPV Test Results on Infinity/GeneXpert® With the Presence of a Late Amplification Signal: What Does This Mean ?

Observational University Hospital, Brest · NCT06919627

This study is trying to see if a new testing method can help better understand negative HPV test results in women and improve cervical cancer diagnosis.

Quick facts

Study typeObservational
Enrollment47 (estimated)
SexFemale
SponsorUniversity Hospital, Brest Academic / other
Locations1 site (Brest, Brittany)
Trial IDNCT06919627 on ClinicalTrials.gov

What this trial studies

This observational study aims to enhance the diagnosis of cervical cancer by analyzing cases where a negative HPV test result is accompanied by a late amplification signal using GeneXpert® technology. It will evaluate the presence of epithelial lesions through cytological controls in patients who have undergone cervico-uterine and anal smear samples at Brest University Hospital. The study will compare the GeneXpert® results with those from a conventional pan-genotypic Papillomavirus PCR test to improve interpretation of HPV testing outcomes.

Who should consider this trial

Good fit: Ideal candidates are women whose cervico-uterine swabs tested negative for HPV but showed a late amplification signal.

Not a fit: Patients with a positive HPV test or those without any amplification signal will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic accuracy for cervical cancer, potentially reducing missed cases.

How similar studies have performed: While this approach is innovative, similar studies have not been widely reported, making this a potentially novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients whose cervico-uterine swab was initially rendered negative by the GeneXpert® system when a late Ct signal (\>35) was present in the raw result.

Exclusion Criteria:

* Patients with a positive cervico-uterine swab for Papillomavirus.
* Patients with a negative test with no amplification signal.
* Patients who have expressed opposition to inclusion in the study.
* Patients under legal protection (guardianship, curatorship, etc.).

Where this trial is running

Brest, Brittany

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Cervical CancersPapillomavirus InfectionsPapillomavirus Type 16/18 InfectionpapillomaviruscancervirologyPCRGeneXpert
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.