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Reprod Health ; 17(1): 128, 2020 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-32831069

RESUMEN

BACKGROUND: Retrospective observational studies suggest that transmission of Trypanosoma cruzi does not occur in treated women when pregnant later in life. The level of parasitemia is a known risk factor for congenital transmission. Benznidazole (BZN) is the drug of choice for preconceptional treatment to reduce parasitic load. The fear of treatment-related side effects limits the implementation of the Argentine guideline recommending BZN 60d/300 mg (or equivalent) treatment of T. cruzi seropositive women during the postpartum period to prevent transmission in a future pregnancy. A short and low dose BZN treatment might reduce major side effects and increase compliance, but its efficacy to reduce T. cruzi parasitic load compared to the standard 60d/300 mg course is not yet established. Clinical trials testing alternative BZN courses among women of reproductive age are urgently needed. METHODS AND DESIGN: We are proposing to perform a double-blinded, non-inferiority randomized controlled trial comparing a short low dose 30-day treatment with BZN 150 mg/day (30d/150 mg) vs. BZN 60d/300 mg. We will recruit not previously treated T. cruzi seropositive women with a live birth during the postpartum period in Argentina, randomize them at 6 months postpartum, and follow them up with the following specific aims: Specific aim 1: to measure the effect of BZN 30d/150 mg compared to 60d/300 mg preconceptional treatment on parasitic load measured by the frequency of positive Polymerase Chain Reaction (PCR) (primary outcome) and by real-time quantitative PCR (qPCR), immediately and 10 months after treatment. Specific aim 2: to measure the frequency of serious adverse events and/or any adverse event leading to treatment interruption. TRIAL REGISTRATION: ClinicalTrials.gov . Identifier: NCT03672487 . Registered 14 September 2018.


Asunto(s)
Enfermedad de Chagas/tratamiento farmacológico , Nitroimidazoles/uso terapéutico , Trypanosoma cruzi/efectos de los fármacos , Argentina , Enfermedad de Chagas/diagnóstico , Femenino , Humanos , Carga de Parásitos , Periodo Posparto , Embarazo , Ensayos Clínicos Controlados Aleatorios como Asunto , Reacción en Cadena en Tiempo Real de la Polimerasa , Estudios Retrospectivos , Trypanosoma cruzi/genética
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