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e- Ab Sensor - Based Real-time Diagnosis of Enterovirus Type 71

NCT ID: NCT01388049

Last Updated: 2012-12-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

72 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-07-31

Study Completion Date

2013-07-31

Brief Summary

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To develop a real-time diagnostic technique with e- Ab sensor for Entervirus 71 detection, the investigators conduct a prospective clinical study. In comparison with results from direct sequencing of Entervirus 71, the investigators evaluate the performance of e- Ab sensor, including reproducibility, sensitivity, specificity, and cross-reaction. The potential factors which may interfere with the results would be investigated. With such technique, the investigators hope to make early diagnosis and give EV71 patients early treatment to reduce the complications and case-fatality rate.

Detailed Description

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Entervirus 71 is one of the most important infectious diseases in children and the important concern in public health. Since 1998, EV71 has become an endemic disease in Taiwan and caused hundreds of severe cases and dozens of fatal cases each year due to lack of EV71 vaccine. Family transmission study also showed that it is highly contagious among households as well as in daycares or kindergartens. Therefore, a rapid diagnosis is clinically necessary and can provide clinicians the rapid answers and make early treatment possible to reduce the complications and case-fatality rate. In addition, early diagnosis of the patients will alert parents and public health workers to prevent the contacts earlier and to limit the EV71 spread.

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 Q.anti-EV71 and its antigen EV71 present in EV71 patients and normal sample. The system incorporates the use of engineered semiconductive antibodies or virus in vertical and lateral chip (eVchip) or lateral flow through (eVsignal) formats. In electrosensing virus probing, semiconductive antibodies are bound as a suitable electrosensing probe which specifically and selectively binds EV71 epitope target molecules in the test serum. In comparison with results from direct sequencing of EV71, the investigators evaluate the performance of e- Ab sensor, including reproducibility, sensitivity, specificity, and cross-reaction. The potential factors which may interfere with the results would be investigated. e- Ab sensor threshold decisions must maximize its sensitivity. Therefore, the threshold value in the test group is to find the decision could have 90% sensitivity and 90% specificity. With such technique, the investigators hope to make early diagnosis and give EV71 patients early treatment to reduce the complications and case-fatality rate.

Conditions

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EV71

Keywords

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EV71

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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virus detection

Group Type EXPERIMENTAL

Electrosensing antibody probing system (e- Ab sensor)

Intervention Type DEVICE

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-EV71 antibody and its antigen (EV71) 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 electrosensing antibody probing, semiconductive antibodies are bound as a suitable electrosensing probe, which specifically and selectively binds targeted molecules (EV71) in the test specimens. From assessment of the electric signature of semiconductive anti-EV71 antibodies, the eABprobe could offer sensitive detection and precise quantification of EV71.

Interventions

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Electrosensing antibody probing system (e- Ab sensor)

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-EV71 antibody and its antigen (EV71) 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 electrosensing antibody probing, semiconductive antibodies are bound as a suitable electrosensing probe, which specifically and selectively binds targeted molecules (EV71) in the test specimens. From assessment of the electric signature of semiconductive anti-EV71 antibodies, the eABprobe could offer sensitive detection and precise quantification of EV71.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* A: The patients with confirmed or suspected infection.
* B: The patients without disease.

Exclusion Criteria

* Patients will be excluded if they couldn't sign the consent.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Taiwan University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Luan-Yin Chang, MD,PhD

Role: PRINCIPAL_INVESTIGATOR

National Taiwan University Hospital

Locations

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National Taiwan University Hospital

Taipei, , Taiwan

Site Status RECRUITING

Countries

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Taiwan

Central Contacts

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Shiming Lin, PhD

Role: CONTACT

Phone: 886-2-23123456

Email: [email protected]

Facility Contacts

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Luan-Yin Chang, MD,PhD

Role: primary

Other Identifiers

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201007053R

Identifier Type: -

Identifier Source: org_study_id