Specificity Study of Diagnostic for Chagas Disease

Determination of Estimated Specificity of Chagas Detect Plus Rapid Tests

This study assesses the specificity of Chagas Detect™ Plus (CDP) rapid test versus standard reference tests (e.g. RIPA or IFA) for Chagas diagnosis in the US.

The Chagas Detect™ Plus Rapid Test is a rapid immunochromotagraphic strip assay for the qualitative detection of antibodies to Trypanosoma cruzi (T. cruzi) in human serum or whole blood samples. Reactive assay results are presumptive evidence of Chagas infection.

This study will enroll males and females 18-70 years of age from areas non-endemic for Chagas infection. A fingerprick blood sample and a venous blood sample (for processing to serum) will be collected from each subject. Subject age, gender, and symptoms will be recorded. For this study, samples will have no personally identifiable information.

CDP and reference tests will be performed by different operators who are laboratory staff members. These staff members, blinded to each other's results, will evaluate the samples from each method independently.

Study Overview

• Status: Completed
• Conditions: Infectious Diseases
• Intervention / Treatment: Other: Chagas Detect Plus

• Study Type: Observational
• Enrollment (Actual): 200

Contacts and Locations

Study Locations

• United States
  • Maryland
    • Baltimore, Maryland, United States, 21205
      • Johns Hopkins Bloomberg School of Public Health

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

The study will enroll male and female subjects between 18 and 70 years of age without known risk factors for Chagas. Typically Chagas disease is a chronic, asymptomatic disease.

Description

Inclusion Criteria:

1. Male and female subjects 18 to 70 years of age

2. Subjects must be able to answer questions concerning:

   1. Clinical symptoms
   2. Blood transfusions
   3. Organ transplants
   4. Travel or residence in Chagas endemic areas

Exclusion Criteria:

1. Any subject who knows that they have positive serology for Chagas disease
2. Subjects who are unable to understand verbal of written or oral language of the consent, or require a legal authorized representative for consent.

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Only
• Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
number of subjects with negative result	one day

Collaborators and Investigators

• Sponsor: InBios International, Inc.

Study record dates

Study Major Dates

• Study Start (Actual): July 1, 2015
• Primary Completion (Actual): March 1, 2016
• Study Completion (Actual): March 1, 2016

Study Registration Dates

• First Submitted: September 4, 2015
• First Submitted That Met QC Criteria: September 4, 2015
• First Posted (Estimate): September 9, 2015

Study Record Updates

• Last Update Posted (Actual): August 18, 2017
• Last Update Submitted That Met QC Criteria: August 15, 2017
• Last Verified: August 1, 2017

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Disease Attributes; Infections; Communicable Diseases
• Other Study ID Numbers: DSC0227

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No