Completed

DOACTDOACT Algorithm vs. AI-Based Models in Oral Anticoagulant Therapy Accuracy

0 criteria met from your profileSee at a glance how your profile meets each eligibility criteria.
Study Aim

This study aims to compare the accuracy of the DOACT Algorithm and AI-Based Models in managing oral anticoagulant therapy, to provide better supportive care.

What is being tested

DOACT algorithm

+ No algorithm

+ LLM-based tools

Other
Who is being recruted

Cardiovascular Diseases+6

+ Embolism

+ Lung Diseases

From 18 to 89 Years
See all eligibility criteria
How is the trial designed

Supportive Care Study

Placebo-Controlled
Interventional
Study Start: January 2025
See protocol details

Summary

Principal SponsorITALO EUGENIO SOUZA GADELHA DE ABREU
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: January 20, 2025

Actual date on which the first participant was enrolled.

This study focuses on comparing the performance of the DOACT algorithm to other decision-making tools in managing oral anticoagulant therapy for vascular patients. The DOACT algorithm is a new method designed to help doctors make decisions about blood-thinning medications. This research involves a broad analysis, looking at how well the DOACT algorithm stacks up against traditional clinical decision-making and large language model-based decision tools. The ultimate goal is to improve supportive care for patients with vascular conditions who require oral anticoagulant therapy. In this study, participants' data will be evaluated using three different methods: the DOACT algorithm, standard clinical decision-making, and large language model-based decision tools. The study aims to measure the accuracy and clinical utility of each method. This means researchers will assess how well each approach predicts the best treatment decisions and how useful these predictions are in a real-world clinical setting. The study does not mention any specific risks or benefits associated with participation.

Official TitleClinical Performance of the DOACT Algorithm Versus AI-Based Decision Models in Oral Anticoagulant Therapy for Vascular Patients
Principal SponsorITALO EUGENIO SOUZA GADELHA DE ABREU
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

59 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Supportive Care Study

These studies explore ways to improve comfort and daily life for people living with a condition. They may focus on easing symptoms, reducing treatment side effects, or supporting overall well-being.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 89 Years

Range of ages for which participants are eligible to join.

Healthy volunteers allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Cardiovascular DiseasesEmbolismLung DiseasesPulmonary EmbolismRespiratory Tract DiseasesThrombosisVascular DiseasesEmbolism and ThrombosisVenous Thrombosis

Criteria

Inclusion Criteria * Physicians with residency training in Vascular Surgery or official Board Certification in Vascular Surgery. * Currently practicing clinical and/or surgical vascular care in Brazil. * Completed the informed consent process (TCLE) and voluntarily agreed to participate. Exclusion Criteria * Physicians without formal Vascular Surgery residency and without Board Certification. * Physicians not performing vascular clinical or surgical care (e.g., exclusively administrative, academic, or non-assistance roles). * Less than 1 year of professional experience after medical school graduation. * Did not sign or did not fully complete the TCLE. Large Language Models (LLMs) * Inclusion Criteria * Free-access LLMs available to the public at the time of data collection. * All responses generated using the same standardized prompt. * Capable of producing complete, text-based clinical answers relevant to vascular surgery decision-making. Exclusion Criteria * Paid or subscription-based LLMs. * LLMs requiring institutional licenses, restricted access, or proprietary tokens. * Models unable to generate full responses to the standardized prompt.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups

3 intervention groups are designated in this study

33.333% chance of being blinded to the placebo group

Treatment Groups

Group I

Experimental
Use of DOACT algorithm (Dose-Oriented Anticoagulant Calculator for Evidence-Based Decision Tool) to recommend appropriate oral anticoagulant regimens.

Group II

Placebo
Standard clinical decision-making to recommend appropriate oral anticoagulant regimens.

Group III

Active Comparator
Use of large language model (LLM)-based tools to recommend appropriate oral anticoagulant regimens.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

Irmandade da Santa Casa de Misericórdia de São Paulo

São Paulo, BrazilOpen Irmandade da Santa Casa de Misericórdia de São Paulo in Google Maps
CompletedOne Study Center