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CompletedNCT01662362ESAUpdated Feb 20, 2014Results posted

Abbott ESA Chagas Assay Post-Market Study

An interventional study of Testing Donor Specimens with ESA Chagas in Chagas Disease, sponsored by Abbott Diagnostics Division. Completed at 2 sites in United States. Open to participants aged 17 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-02-20.

Sponsored by Abbott Diagnostics Division (part of Abbott) · Not applicable and Interventional

Phase
Not applicable
Study type
Interventional
Enrollment
63
Allocation
Not applicable
Ages
17 Years and older
Sex
All
01

Study summary

The study is conducted to meet an FDA post market commitment to collect and report data on the performance of the ESA Chagas assay. A minimum of 50 donor specimens that are FDA-licensed ABBOTT PRISM Chagas repeatedly reactive (RR)will be tested with the ABBOTT ESA Chagas assay. In addition, minimum of 300 ABBOTT PRISM Chagas nonreactive (NR) unidentified donor specimens will be tested with ABBOTT ESA Chagas assay.

Read the detailed description

ABBOTT ESA Chagas testing will be performed at a minimum of two blood donor centers. Testing will be performed using the FDA-licensed ESA Chagas assay and will be performed in accordance with the ESA Chagas package insert. ABBOTT PRISM Chagas repeatedly reactive blood donor specimens identified by U.S. blood donor centers, as part of the routine blood donation process, will be tested with the FDA-licensed ESA Chagas. Specimens will also be tested with radioimmune precipitation assay (RIPA) for antibody to T. cruzi, a laboratory developed test, and the FDA-licensed ORTHO T. cruzi ELISA. The donor centers will contact the donors and request the donor to return to complete a questionnaire and provide a follow-up specimen.

In addition, a minimum of 300 blood donor specimens with ABBOTT PRISM Chagas nonreactive results will also be tested with ESA Chagas. These specimens will be unidentified, leftover specimens from routine donor testing and not individually identifiable. Specimens that are positive or indeterminate with ESA Chagas will be further tested with RIPA.

02

Conditions studied

  • Chagas Disease

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Keywords

  • Chagas Disease
  • Trypanosoma cruzi
  • American trypanosomiasis
  • South American trypanosomiasis
  • kissing bugs
  • reduviid bugs
03

In context

Chagas Disease

73 studies on the registry are indexed under Chagas Disease; 5 are open to participants now.

This study's enrollment of 63 is below the median of 87 across 49 interventional studies indexed under Chagas Disease.

Browse Chagas Disease studies →

Lead sponsor

Abbott Diagnostics Division is the lead sponsor of 8 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
17 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

PRISM Chagas Repeatedly Reactive Donor Specimens

Inclusion criteria

Inclusion Criteria:

  • Blood donor specimen documented as PRISM Chagas repeatedly reactive

Exclusion criteria

Exclusion Criteria:

  • None
05

Study design

Phase
Not applicable
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
63 participants (actual)

Study arms

  • Other
    Testing Donor Specimens with ESA Chagas

    Test blood donor specimens that are ABBOTT PRISM Chagas Repeatedly Reactive with ESA Chagas. Donors will be asked to return for a follow-up blood draw.

    Device: Testing Donor Specimens with ESA Chagas

Interventions

  • DeviceTesting Donor Specimens with ESA Chagas

    Donors will be asked to return for a follow-up blood draw.

    Also known as: ABBOTT ESA Chagas (ESA Chagas) assay, List Number: 8L34

06

What researchers measure

Primary outcomes

  1. ESA Chagas Testing of US Blood Donor Specimens Repeatedly Reactive by ABBOTT PRISM Chagas

    Time frame: Up to six months

Secondary outcomes

  1. ESA Testing of Preselected Donor Specimens Nonreactive by ABBOTT PRISM Chagas

    Time frame: Up to six months

07

Results

Posted Feb 20, 2014

Participant flow

Participant flow — Overall Study
MilestoneTesting Donor Specimens With ESA Chagas
Started63
Completed25
Not completed38
Withdrew: Lost to follow-up38

Outcome measures

PrimaryESA Chagas Testing of US Blood Donor Specimens Repeatedly Reactive by ABBOTT PRISM Chagas
Time frame:
Up to six months
Reported as:
Number · percent agreement to RIPA
ESA Chagas Testing of US Blood Donor Specimens Repeatedly Reactive by ABBOTT PRISM Chagas
percent agreement to RIPATesting Donor Specimens With ESA Chagas
ESA Chagas Testing of US Blood Donor Specimens Repeatedly Reactive by ABBOTT PRISM Chagas92.06 (82.44 to 97.37)
SecondaryESA Testing of Preselected Donor Specimens Nonreactive by ABBOTT PRISM Chagas
Time frame:
Up to six months
Reported as:
Number · percentage of specimens ESA negative
ESA Testing of Preselected Donor Specimens Nonreactive by ABBOTT PRISM Chagas
percentage of specimens ESA negativeTesting Donor Specimens With ESA Chagas
ESA Testing of Preselected Donor Specimens Nonreactive by ABBOTT PRISM Chagas99.00 (97.11 to 99.79)

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Testing Donor Specimens With ESA Chagas—0/63 (0%)0/63 (0%)

Baseline characteristics

Donor specimens PRISM Chagas Repeatly Reactive

Age, Customized
Age, Customized(participants)Testing Donor Specimens With ESA Chagas
>= 18 years19
Unknown44
Sex/Gender, Customized
Sex/Gender, Customized(participants)Testing Donor Specimens With ESA Chagas
Male9
Female10
Unknown44
Region of Enrollment
Region of Enrollment(participants)Testing Donor Specimens With ESA Chagas
United States63
08

Study locations

2 sites
  • LifeSource
    Rosemont, Illinois 60018, United States
  • American Red Cross
    Gaithersburg, Maryland 20877, United States
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jul 2012, a primary completion of Dec 2012 and a completion of Dec 2012. It does not say whether these dates are actual or estimated.

Results were first posted in Feb 2014, 1 year 2 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 8, 2012
First posted
Aug 10, 2012
Start
Jul 2012
Primary completionActual
Dec 2012
CompletionActual
Dec 2012
Results first posted
Feb 20, 2014
Last update
Feb 20, 2014
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 20, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01662362
Responsible party
Sponsor
First posted
Aug 10, 2012
Start date
Jul 2012
Primary completion
Dec 2012
Completion
Dec 2012
Results posted
Feb 20, 2014
Last update
Feb 20, 2014

Study contacts

Susan Stramer, Ph.D.
principal investigator · American National Red Cross
Sharon Gordon, MS, MBA, MT
principal investigator · LifeSource

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2014. You cannot join it, but the record below documents what was studied.

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