- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04048837
Prospective Study for the Evaluation of Dengue Prognostic Biomarkers in Singapore
Study Overview
Status
Detailed Description
This is a non-interventional, prospective study aim to recruit 200 subjects from National University Hospital, Tan Tock Seng Hospital and Ng Teng Feng General Hospital over a period of 2 years to determine whether differential serum A2M, CMA1 and VEGFA concentrations can predict whether a dengue patient will develop severe disease. Serum A2M, CMA1 and VEGFA concentrations will be quantitated using enzyme-linked immunosorbent assays. The objectives of this study as below:
- Determine the optimum cut-off for the prediction of DHF/DSS (WHO 1997 classification) and Severe Dengue (SD; WHO 2009 classification).
- Better understand the characteristics (e.g. daily kinetics) of A2M, CMA1 and VEGFA in Dengue and how their serum concentrations are affected by other variables e.g. patient age and gender, day of sample collection, primary/secondary infection (based on patient memory and/or Standard Diagnostics SD BIOLINE Dengue Duo) and virus serotype.
- Perform a cost-effectiveness analysis for the adoption of such a Dengue prognostic technology in hospital.
Eligible participants will be aged 21 and above with a laboratory confirmed dengue patients (either positive PCR or positive NS1), and meet all inclusion/exclusion criteria. Each participant will be given an information sheet and informed consent obtained from him/her. Blood will be drawn for PCR Dengue serotyping and measurements of serum concentrations of A2M, CMA1 and VEGFA via quantitative enzyme-linked immunosorbent assays (ELISA). Blood collection will be performed on the day of recruitment.
Participants may be managed as inpatients or outpatients as decided by their treating physician. For participants who are managed as Dengue outpatients, they will be asked to return to the outpatient clinic every day. For both Dengue inpatient and outpatient participants, blood will be drawn every day until they are discharged from care or Day 7 of the study, whichever earlier. If the participants are discharged from care (discharge from hospital or dengue clinic) on the day of recruitment, they will be asked to come back for study visit on Day 2. And 2 ml of blood will be collected for research purpose on Day 2. On the day of discharge, for both Dengue inpatients and outpatients, participants will each be given a questionnaire to complete. A separate questionnaire will also be filled up by the study team for the discharge of each Dengue inpatient participant. Should the participant be discharged prior to Day 7 of the study, a telephone call will be made to the discharged participant on Day 7 of the study to establish his/her health status. Upon completion of the study, each participant will be reimbursed a lump sum of $50.
Data collected will be entered into a paper case report forms and will be transcribed onto eCRF. All participants identifiers will not be collected. The system will allow for audit tracking. During the course of the study, auditors from relevant authorities may visit the study site to review protocol compliance, check electronic case report form (eCRFs) and ensure that the study is being conducted according to Good Clinical Practice (GCP).
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Singapore, Singapore
- National University Hospital
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Singapore, Singapore, 308433
- Tan Tock Seng Hospital
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Singapore, Singapore, 609606
- Ng Teng Fong General Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Confirmed Dengue i.e. laboratory confirmation of acute Dengue for this current disease episode by either (i) Positive polymerase chain reaction (PCR) for viral ribonucleic acid (RNA), or (ii) Positive NS1 antigen test with a compatible clinical syndrome
- At least 21 years of age based on his/her birthday, and
- Willing and able to give informed consent.
Exclusion Criteria:
- Already classified as having Dengue Haemorrhagic Fever or Dengue Shock Syndrome (WHO 1997 classification) or severe Dengue (WHO 2009 classification) when they first present themselves to the hospital.
- Assessed by Investigators to be unlikely to comply with trial procedures.
- Have known or suspected congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the past 6 months or long term corticosteroid therapy.
- Have received blood or blood-derived products in the past three months that might interfere with the assessment of the biomarker responses.
- Have participated in another clinical trial investigating a vaccine or drug in the four weeks preceding the study.
- Have received any vaccine in the four weeks preceding the study.
- Are deprived of freedom by an administrative or court order or in an emergency setting or hospitalized without his/her consent.
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Concentration of serum A2M, CMA1 and VEGFA will be use to predict whether a dengue patient will develop severe disease as defined by WHO 1997 and WHO 2009 classifications.
Time Frame: 7 days
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Blood will be drawn for measurements of serum concentrations of biomarkers via quantitative enzyme-linked immunosorbent assays (ELISA).
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7 days
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of participants develop Dengue Haemorrhagic fever (DHF) within study periods
Time Frame: 7 days
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Patient symptoms will be accessed using WHO 1997 classification for DHF.
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7 days
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Number of participants develop Dengue Shock Syndrome (DSS) within study periods
Time Frame: 7 days
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Patient symptoms will be accessed using WHO 1997 classification for DSS
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7 days
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Number of participants develop Severe Dengue within study periods
Time Frame: 7 days
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Patient symptoms will be accessed using WHO 2009 classification for severe dengue)
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7 days
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Cost of dengue treatments for adoption of such a dengue prognostic technology in hospital
Time Frame: 7 days
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Hospital bills from and outpatient care will be collected to calculate the cost of dengue treatment.
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7 days
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Collaborators and Investigators
Investigators
- Principal Investigator: Sophia Archuleta, National University Hospital, Singapore
Publications and helpful links
General Publications
- Lee LK, Earnest A, Carrasco LR, Thein TL, Gan VC, Lee VJ, Lye DC, Leo YS. Safety and cost savings of reducing adult dengue hospitalization in a tertiary care hospital in Singapore. Trans R Soc Trop Med Hyg. 2013 Jan;107(1):37-42. doi: 10.1093/trstmh/trs009.
- Ingram PR, Mahadevan M, Fisher DA. Dengue management: practical and safe hospital-based outpatient care. Trans R Soc Trop Med Hyg. 2009 Feb;103(2):203-5. doi: 10.1016/j.trstmh.2008.07.007. Epub 2008 Aug 29.
- Bhatt S, Gething PW, Brady OJ, Messina JP, Farlow AW, Moyes CL, Drake JM, Brownstein JS, Hoen AG, Sankoh O, Myers MF, George DB, Jaenisch T, Wint GR, Simmons CP, Scott TW, Farrar JJ, Hay SI. The global distribution and burden of dengue. Nature. 2013 Apr 25;496(7446):504-7. doi: 10.1038/nature12060. Epub 2013 Apr 7.
- Brady OJ, Gething PW, Bhatt S, Messina JP, Brownstein JS, Hoen AG, Moyes CL, Farlow AW, Scott TW, Hay SI. Refining the global spatial limits of dengue virus transmission by evidence-based consensus. PLoS Negl Trop Dis. 2012;6(8):e1760. doi: 10.1371/journal.pntd.0001760. Epub 2012 Aug 7.
- Chawla S, Sahoo SS, Singh I, Verma M, Gupta V, Kumari S. Dengue vaccine: come let's fight the menace. Hum Vaccin Immunother. 2015;11(2):474-6. doi: 10.4161/21645515.2014.981077.
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- PrognosDen
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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