The EPPIC study was an international survey aimed at determining healthcare providers' preferences for treating Chagas disease caused by the parasite Trypanosoma cruzi. The survey included 30 respondents (60% response rate), mostly physicians and nurses with more than six years of experience. Results showed that efficacy of 70% and above was associated with substantially higher prescribing willingness – 46.7% of respondents would likely prescribe a regimen with 70–79% efficacy, compared to 20% for 60–69% and 6.7% for 50–59%. Willingness to prescribe regimens with moderate efficacy increased when they offered prevention of mother-to-child transmission, reduced adverse effects, or possibility of second-line use. Respondents identified adverse drug reactions, long treatment duration, and limited drug availability as the main disadvantages of current therapies.