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CompletedNCT04090489Updated Apr 24, 2020

Congenital Chagas Disease: Long Term Follow up of Treated Children. Preliminary Report or Cardiological Evaluation in Chagas Disease Treated Children

An observational study in Chagas Disease and Chagas Cardiomyopathy, sponsored by Hospital de Niños R. Gutierrez de Buenos Aires. Completed at 1 site in Argentina. Open to participants aged 6 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-04-24.

Sponsored by Hospital de Niños R. Gutierrez de Buenos Aires · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
120
Ages
6 Years to 50 Years
Sex
All
01

Study summary

Chagas disease (CD) could be acquired by contact with the vector, transplacentally and by blood transfusion. The duration and clinical presentation of the initial acute phase of the infection may be variable, but the majority of patients are asymptomatic. The acute phase usually lasts a few months and, if untreated, the acute phase goes on to develop a chronic infection. The chronic phase usually continues for the subject's lifetime, and 30% to 40% of patients will progress to the chronic phase with a cardiac, digestive, neurological, or mixed form at 15 to 30 years after the initial infection. Progressive heart failure and sudden death due to ventricular arrhythmias are the main causes of death in patients with chronic Chagas heart disease.

Objective: To evaluate cardiac involvement in children after pharmacological treatment for Chagas disease.

Methods: Open exploratory study, blind for cardiological evaluation. Population: children treated for Chagas disease with at least 6 years after-treatment parasitological (T.cruzi qPCR), serological (IHA, EIA) and cardiological follow-up. Non-infected subjects were included as a control group for final cardiological evaluation.

Treatment: benznidazole or nifurtimox, standard dose, for 60 days. Blood samples were collected at diagnosis, end-of-treatment and every 6-12 months thereafter.

Electrocardiogram (ECG) was performed at diagnosis and every year after treatment.

In this cohort, 24 hours ECG (Holter) and Speckle-tracking strain echocardiography study were performed at the end of follow-up for this study.

02

Conditions studied

  • Chagas Disease
  • Chagas Cardiomyopathy
03

In context

Chagas Disease

68 studies on the registry are indexed under Chagas Disease; 4 are open to participants now.

This study's enrollment of 120 is close to the median of 120 across 19 observational studies indexed under Chagas Disease.

Browse Chagas Disease studies →

Lead sponsor

Hospital de Niños R. Gutierrez de Buenos Aires is the lead sponsor of 14 studies on the registry; 2 are open to participants now.

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

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Who can participate

Ages eligible
6 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

A cohort of CD treated children with at least 6 years post-treatment parasitological (T. cruzi qPCR), serological and cardiological follow-up. Treatment: benznidazole (Bz) or nifurtimox (Nftx), standard dose, for 60 days.

Inclusion criteria

  • Chagas diseases children treated with benznidazole / or nifurtimox
  • Patients with at least 6 years of after-treatment follow-up.
  • Diagnosis of Chagas disease: in infants younger than 8 months by direct observation of T.cruzi using parasitological concentration method (microhematocrit test); in infants older than 9 months 2 reactive serological test (ELISA, Indirect Hemagglutination ).

Exclusion criteria

Exclusion Criteria:

  • Patients with chronic diseases (renal, hepatic, neurological) that at the discretion of the researcher could affect the interpretation of the results.
  • Subjects with congenital heart disease.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
120 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. To evaluate the efficacy of CD treatment in preventing the development of cardiac alterations in treated children.

    To compare number of patients with pathological cardiac findings, measured by Holter and ECG, in two different groups: patients with treated Chagas disease (either with Nifurtimox or Benznidazole) and healthy (without Chagas disease) patients of the same population (control group).

    Time frame: 10 years

Secondary outcomes

  1. Post treatment evaluation of treatment response biomarkers

    To compare serology titles in patients treated for Chagas disease (either with Nifurtimox or Benznidazole) with PCR titles in the same group of patients and evaluate if PCR can be an early marker of therapeutic response compared to serology.

    Time frame: 5 years

07

Study locations

1 site
  • Parasitology Division, Children's Hospital "R Gutierrez" of Buenos Aires
    Buenos Aires, 1425, Argentina
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 24, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04090489
Lead sponsor
Hospital de Niños R. Gutierrez de Buenos Aires
Responsible party
Dr Jaime Altcheh (Principal Investigator, Hospital de Niños R. Gutierrez de Buenos Aires) — Principal investigator
First posted
Sep 16, 2019
Start date
Jan 22, 2015
Primary completion
Nov 1, 2019
Completion
Mar 1, 2020
Last update
Apr 24, 2020

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

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