Clinical Trial: e- Ab Sensor-based Real-time Detection of Oncogenic Human Papilloma Viruses

Study Status: Completed
Recruit Status: Unknown status
Study Type: Interventional

Official Title: Nano-mechanical and Nano-electrosensing Devices Based Interaction Force and Interaction Kinetics Analysis of Oncogenic Human Papilloma Viruses

Brief Summary: To develop a real-time diagnostic technique with e- Ab sensor for high risk human papilloma viruses(high risk HPV) detection, the investigators conduct a prospective clinical study. In comparison with results from direct sequencing of HPV, the investigators evaluate the performance of e- Ab sensor, including reproducibility, sensitivity, specificity, and cross-reaction (such as detection of low risk HPV). The potential factors which may interfere with the results would be investigated. With such a real-time diagnostic technique, the investigators hope to obtain information of patients in cost-saving and time-saving way and can give patients early treatment and offer more individualized treatment for our patients.

Detailed Summary:

Human papillomavirus (HPV)-induced cervical carcinogenesis is proposed to be multi-step in nature. The major steps in cervical carcinogenesis include persistent infection of the metaplastic cervical epithelium with one or more of the oncogenic HPV infection, clonal progression of the infected epithelium to cervical precancer, and further invasion. Although these fundamental steps are well established, several new genetic and immunologic studies have shed light on the factors that influence each of these transitions. Over 150 different HPV subtypes have been identified so far, with a subset of these being classified as high risk for oncogenesis. Persistent infection with oncogenic HPV is the main cause of cervical cancer. Polymerase-chain-reaction (PCR)-based assays show that HPV DNA exist in around 90.7- 96.6% patients with cervical cancer and in 13.4 -15.6% control women. About the detected HPV types in patients, in descending order of frequency, are types 16, 18, 45, 31, 33, 52, 58, and 35. Fifteen HPV types are classified as high-risk types (16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 68, 73, and 82); 3 are classified as probable high-risk types (26, 53, and 66); and 12 are classified as low-risk types (6, 11, 40, 42, 43, 44, 54, 61, 70, 72, 81). The most frequently detected high risk HPV types (HPV 16, 51, 52, and 59) are similar in male of different sites, which is compatible with the female incidence.

Electrosensing antibody probing system (e- Ab sensor), which was developed for the rapid and sensitive detection of hapten, proteins, or viral antigen in medical samples, will be used for analyzing the interaction kinetics between anti-high risk HPV and its antigen (high-risk HPV) present in patients. The system incorporates the use of engineered semiconducive antibodies or virus in vertical and lateral chip (eAbchip) or lateral flow through (eAbsignal) formats. In
Sponsor: National Taiwan University Hospital

Current Primary Outcome: The performance of e- Ab sensor [ Time Frame: 1 Day ]

In comparison with results from direct sequencing of HPV, we evaluate the performance of e- Ab sensor, including reproducibility, sensitivity, specificity, and cross-reaction.


Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: National Taiwan University Hospital

Dates:
Date Received: July 1, 2011
Date Started: June 2010
Date Completion: December 2014
Last Updated: November 19, 2012
Last Verified: November 2012