EFFICACY OF ORAL AROEIRA (Schinus Terebinthifolia Raddi) COMPARED TO OMEPRAZOLE IN PARTICIPANTS DIAGNOSED WITH FUNCTIONAL DYSPEPPSIA: A RANDOMIZED AND DOUBLE-BLIND STUDY

This is a prospective, randomized, double - blind study of 474 male and female volunteers with dyspeppsia diagnosed at the Oswaldo Cruz University Hospital Gastroenterology Outpatient Clinic from March 2025 to March 2027.

Hypothesis:

As a non-inferiority study, the hypothesis is that the use of oral Aroeira (Schinus terebinthifolia Raddi) for the treatment of participants diagnosed with functional dyspepsia efficacy not inferior to therapy based on the use of omeprazole.

The initial proposal of the project was a prospective, comparative and double blind study between aroeira and omeprazole together with antibiotic treatment for patients diagnosed with gastritis caused by Helicobacter pylori, whose dosage of aroeira (Schinus terebinthifolia Raddi) was 1 tablet of 640 mg, every 12 hours for 4 weeks and omeprazole was 1 capsule of 20 mg, 12/12h, for 4 weeks.

Due to Anvisa requirements, and taking into account the current rationale for gastritis related to this infection, we analyzed that a project with gastritis without the association with H. pylori would not be ideal. So, we are proposing a comparative study with the same drugs (aroeira versus omeprazole) in evaluating the complete relief of dyspeptic symptoms in Dyspepsia Functional. In this new proposal, the N will be 474 participants, maintaining a 1:1 ratio. Research participants will be those who report at least 1 of the 5 dyspeptic symptoms (nausea, heartburn, pain epigastric pain, abdominal discomfort aggravated/relieved by meals and feeling of early satiety) with onset more than 6 months, lasting at least 3 months and excluding other diagnoses by upper digestive endoscopy (EDA).