Chagas Disease Diagnostic - Inconclusive Serology
PCR in Blood Cultures of Individuals With Positive and Inconclusive Serology for Chagas' Disease
1 other identifier
interventional
N/A
1 country
1
Brief Summary
T. cruzi infection affects approximately five million people in Brazil. The diagnosis of the chronic phase of infection is performed by indirect serological methods which, nevertheless, leave inconclusive results. One of the direct methods used for T. cruzi identification, blood culture in LIT (liver infusion tryptose) medium, presents low sensitivity in that phase of the disease. A negative result does not eliminate the possibility of infection, but a positive test has high absolute diagnostic value, which enables the indication of antiparasitic treatment. Molecular diagnosis (PCR) in this phase is promising and can be used as a confirmatory test, particularly when individuals present inconclusive results in conventional serological tests, such as ELISA, HAI and IFI. This study aimed at improving blood culture sensitivity in LIT medium by performing PCR in individuals with positive and inconclusive serology for chagasic infection.
Trial Health
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Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 3, 2007
CompletedFirst Posted
Study publicly available on registry
August 6, 2007
CompletedMarch 24, 2011
August 1, 2007
August 3, 2007
March 23, 2011
Conditions
Interventions
Eligibility Criteria
You may qualify if:
- individuals with positive or inconclusive results in conventional serological tests: ELISA, HAI and IFI for Chagas disease
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Univerdidade Estadual Paulista
Botucatu, São Paulo, 18600-000, Brazil
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mariele Cristina M Picka, MSc
UPECLIN HC FM Botucatu Unesp
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Masking
- NONE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
August 3, 2007
First Posted
August 6, 2007
Last Updated
March 24, 2011
Record last verified: 2007-08