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Clinical Evaluation of e- Ab Sensor - Based Real-time Diagnosis of Serum Procalcitonin Level

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01388114
First Posted: July 6, 2011
Last Update Posted: November 16, 2012
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
National Taiwan University Hospital
  Purpose
The purpose of this study is to develop a real-time diagnostic technique with e- Ab sensor for serum PCT level measurement will offer a test with lower cost, and increase the applicability of serum Procalcitonin (PCT) level in daily clinical practice.

Condition Intervention
Sepsis Device: Electrosensing Antibody Probe System (e- Ab sensing)

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Clinical Evaluation of e- Ab Sensor - Based Real-time Diagnosis of Serum Procalcitonin Level

Further study details as provided by National Taiwan University Hospital:

Primary Outcome Measures:
  • Performance of e- Ab sensor for serum PCT level measurement [ Time Frame: 1 Day ]
    The serum procalcitonin level from e- Ab sensor would be compared with the results from Kryptor assay system, Brahms, Germany. The correlation between serum procalcitonin levels from e- Ab sensor and from Kryptor assay system would be examined.


Enrollment: 200
Study Start Date: November 2010
Study Completion Date: July 2012
Primary Completion Date: July 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Electrosensing antibody probing system (e- Ab sensing) Device: Electrosensing Antibody Probe System (e- Ab sensing)
Electrosensing antibody probing system (e- Ab sensing), 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-procalcitonin antibody and procalcitonin in the serum of the patients. The system incorporates the use of engineered semiconductive 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 procalcitonin polypeptide target molecules in the test specimen

Detailed Description:
Sepsis is a clinical syndrome with complex interactions between microorganism, host immune, inflammatory and coagulation response. The mortality rate associated with septic shock is high, up to 40-70%. Currently, the diagnosis of sepsis depends on microbial infection and systemic inflammatory response syndrome, which lacks sensitivity and specificity. Accordingly, Society of Critical Care Medicine (SCCM) offered new recommendations about the diagnosis of sepsis in 2001, which included the serum level of procalcitonin (PCT). Increased PCT levels through the clinical course correlated with higher mortality in critically-ill patients. On the other hand, recent studies also showed PCT levels could guide the antibiotic treatment in patients with sepsis or lower respiratory tract infection. Besides usage in sepsis population, serum PCT level could also be used for aids in diagnosis of bacterial infection and for guide of antibiotic treatment in acute exacerbation of chronic obstructive airway disease. However, current method of PCT assay depends on the Kryptor system developed by BRAHMS, Germany, with the functional sensitivity of 60 pg/mL. Each assay costs 1300 NT dollars, which is too expensive for serial follow-up of serum PCT levels. A real-time diagnostic technique with e- Ab sensor for serum PCT level measurement will offer a test with lower cost, and increase the applicability of serum PCT level in daily clinical practice. Here, the investigators conduct a study to develop a real-time diagnostic technique with e- Ab sensor for serum PCT level measurement in patients with sepsis.
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patients who are admitted to medical intensive care units

Exclusion Criteria:

  • Patients who refuse consent
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01388114


Locations
Taiwan
National Taiwan University Hosital
Taipei, Taiwan, 100
Sponsors and Collaborators
National Taiwan University Hospital
Investigators
Principal Investigator: Chao-Chi Ho, MD, PhD National Taiwan Universtiy Hospital
  More Information

Responsible Party: National Taiwan University Hospital
ClinicalTrials.gov Identifier: NCT01388114     History of Changes
Other Study ID Numbers: 201010020R
First Submitted: July 1, 2011
First Posted: July 6, 2011
Last Update Posted: November 16, 2012
Last Verified: November 2012

Keywords provided by National Taiwan University Hospital:
Procalcitonin Measurement

Additional relevant MeSH terms:
Antibodies
Immunoglobulins
Calcitonin
Immunologic Factors
Physiological Effects of Drugs
Bone Density Conservation Agents