Evaluating DNA methylation markers and extended HPV genotyping in first-void urine for detecting high-grade cervical lesions in HPV-positive women: a cross-sectional study

The study found that testing for ASCL1/LHX8 DNA methylation in at-home collected first-void urine can detect most cervical cancers and high-grade precancers, supporting a fully molecular screening pathway without a clinical visit.

Clinical performance of ASCL1/LHX8 DNA methylation on first-void urine to screen for cervical cancer — Van Keer et al., Communications medicine · source ↗

• colli-pee
• first-void
• self-collection
• hpv
• liquid-biopsy
• urine
• biomarkers

In first-void urine collected with Colli-Pee, the extraction method influenced HPV and human DNA yield more than the collected volume did: standardising processing matters at least as much as standardising volume.

Impact of Collection Volume and DNA Extraction Method on the Detection of Biomarkers and HPV DNA in First-Void Urine — Téblick et al., Molecules · source ↗

• colli-pee
• first-void
• self-collection
• hpv
• liquid-biopsy
• liquid
• urine
• biomarkers

This meta-analysis found that self-collected urine samples for HPV testing had lower sensitivity for detecting high-grade lesions compared to physician-collected cervical specimens. The use of a first-void collection device such as Colli-Pee was associated with marginally higher sensitivity than general urine sampling.

Accuracy of HPV Testing Using Self-collected Urine Compared With Physician-collected Cervical Specimen for HSIL or Worse — Chen et al., Journal of lower genital tract disease (paywalled) · source ↗

• urine
• first-void
• colli-pee
• self-collection
• validation
• hpv
• sti

This randomised sub-study found return rates of 10.4% for Colli-Pee, 10.1% for FLOQSwabs and 7.4% for Evalyn-Brush. All devices yielded sufficient DNA with low invalid rates, but the authors noted the study was limited by low overall participation.

Comparison of three different hpv self-sampling tools - a subanalysis of the prospective, randomized hannover self-collection study — Hempel et al., Archives of gynecology and obstetrics · source ↗

• urine
• first-void
• colli-pee
• self-collection
• acceptability
• hpv
• sti

For decentralised testing, a study found dry vaginal self-samples using Copan FLOQSwabs stored up to two weeks at room temperature maintain DNA quality. However, first-void urine collected with the Colli-Pee device may be less sensitive for HPV detection, showing lower positivity and higher cycle threshold values, median Ct 30 versus 27 for other samples.

Evaluation of the Quality and Suitability of Self-Collected Vaginal and Urine Samples for Human Papillomavirus Testing: A Prospective Matched Study — Chu et al., BJOG : an international journal of obstetrics and gynaecology · source ↗

• colli-pee
• first-void
• sti
• self-collection
• dried
• hpv
• urine
• validation