Evidence map›Paper›PMID 41264617›Full record

ArticlePLoS neglected tropical diseases2025

Long-term outcomes of benznidazole treatment in chronic Chagas disease: A 27-year cohort study of parasitological cure and death in the Jequitinhonha Valley, Brazil.

Júlio César Santoro de Oliveira Assis, Lourena Tomazelli Suave, Gabriela Roberta Ramos Fernandes, Girley Francisco Machado-de-Assis, Helen Rodrigues Martins, Glaucia Diniz Alessio, Olindo Assis Martins-Filho, Renato Afonso Salgado, Mariângela Carneiro, Rosália Morais Torres and 1 more

Abstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Human Histatin 5 Exerts Anti-Trypanosomal Activity AgainstInternational journal of molecular sciences · 2026
    Article
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Júlio César Santoro de Oliveira AssisPrograma de Pós-graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
Lourena Tomazelli SuavePrograma de Pós-graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
Gabriela Roberta Ramos FernandesPrograma de Pós-Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
Girley Francisco Machado-de-AssisDepartamento de Ciências Básicas da Vida, Universidade Federal de Juiz de Fora, Campus Governador Valadares, Governador Valadares, Minas Gerais, Brazil.
Helen Rodrigues MartinsUniversidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil.
Glaucia Diniz AlessioGrupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil.
Olindo Assis Martins-FilhoGrupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil.
Renato Afonso SalgadoHospital Nossa Senhora das Graças, Sete Lagoas, Minas Gerais, Brazil.
Mariângela CarneiroDepartamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
Rosália Morais TorresFaculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
Marta de LanaPrograma de Pós-graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.ORCID 0000-0002-1565-4707

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
6 · The paper itself

Abstract

backgroundChagas disease (CD) is a neglected tropical infection prevalent in rural areas of Latin America. The etiological treatment is indicated for patients with both acute and chronic phases of CD, except in the most advanced clinical stage of the disease. However, there are still several divergences regarding the benefits of etiological treatment in chronic CD as far as the parasitological cure and survival/mortality outcomes. The present study aimed at verifying the impact of benznidazole (BZ) treatment on parasitological cure and death of patients with chronic CD at 9, 13, and 27 years post-treatment.

objectiveThis study aimed to verify the impact of BZ-treatment on parasitological cure and death of patients with chronic CD at 9, 13, and 27-year follow-up.

methodsA historical and prospective cohort of 42 patients with chronic CD, categorized as BZ-treated (BZ-T, n = 21) and Not-treated (NT, n = 21), were evaluated after 9, 13, and 27 years of follow-up, using parasitological tests (Hemoculture-HC, polymerase chain reaction-PCR, and quantitative real-time PCR-qPCR), conventional-CS (ELISA), and non-conventional-NCS (Chagas-Flow ATE) serology, employing three distinct cure criteria, one classical and two alternative. Survival analysis for death was determined by the Kaplan-Meier method.

resultsParasitological data (HC, PCR and qPCR) were negative in all patients (BZ-T and NT) at 27-year follow-up. The CS was negative in 75% and 23.1% of patients from BZ-T and NT, respectively. NCS had a higher negative rate (95%) than CS (23.1%) in BZ-T. The classic cure criterion demonstrated that 75% of BZ-T achieved a successful therapeutic outcome. Moreover, the use of the second and third alternative cure criteria revealed a higher proportion of cure in BZ-T (90%). The overall mortality over 27-year follow-up was 4.8% in BZ-T and 38.1% in NT. Kaplan-Meier survival curves for survival estimated 95% and 40% for BZ-T and NT patient groups.

conclusionsThe overall analysis demonstrated that BZ-T chronic CD patients yielded higher parasitological cure rates as well as increased survival over a 27-year follow-up. The Chagas-Flow ATE proved to be a valuable tool for monitoring therapeutic response and, together with parasitological and molecular parasitological methods, provided a more accurate cure criterion.

Indexed as

Chagas DiseaseNitroimidazolesTrypanocidal AgentsAdultAgedBrazilChronic DiseaseCohort StudiesFemaleFollow-Up StudiesHumansMaleMiddle AgedProspective StudiesTreatment OutcomeTrypanosoma cruzibenzonidazoleNitroimidazolesTrypanocidal Agents

Identifiers

PMID41264617
PMCPMC12633969

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.