High Gastrointestinal Bleed Risk Outcomes in Patients With Non-valvular Atrial Fibrillation (NVAF) in France (HELIOS-AF)

June 25, 2026 updated by: Pfizer

ANTICOAGULANT TREATMENT PATTERNS AND OUTCOMES AMONG NON-VALVULAR ATRIAL FIBRILLATION PATIENTS WITH HIGH RISK OF GASTROINTESTINAL BLEEDING IN FRANCE: A RETROSPECTIVE COHORT ANALYSIS USING SNDS DATABASE

This study is a retrospective analysis of observational cohorts using data from prospectively collected administrative/claims data to investigate treatment patterns, and safety and effectiveness outcomes in patients with NVAF with high risk of gastrointestinal bleed who initiate anticoagulant treatment with a Vitamin-K Antagonists (VKAs) or direct-acting oral anticoagulants (DOACs).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Adult patients with a diagnosis of non-valvular atrial fibrillation being treated with anticoagulation.

Description

Inclusion Criteria:

Patients covered by the French national health insurance general scheme With at least one reimbursement of AC treatment (apixaban, rivaroxaban, dabigatran, or VKAs) Aged ≥18 years as of the index date With a diagnosis of atrial fibrillation (AF) prior to or on the index date With at least one risk factor for gastrointestinal bleeding

Exclusion Criteria:

Patients with different types of AC treatment at the index date Patients with a diagnosis or procedure code indicative of rheumatic mitral valvular heart disease or valve replacement procedure Individuals with a diagnosis of VTE during the 12 months prior to or on the index date

Study Plan

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

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
NVAF High GI bleed risk
NVAF patients with a high risk of gastrointestinal bleeding
Drug: Apixaban
Anticoagulant
Drug: Rivaroxaban
Anticoagulant
Drug: Dabigatran
Anticoagulant
Drug: Vitamin K antagonist (VKA)
Anticoagulant

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Bleeding leading to hospitalization
Time Frame: 2016-2019
The follow-up period will be from the index date to death or end of study (31 December 2019). For the comparative analyses of clinical outcomes the follow-up period will be from the day after index date to the earliest of an outcome of interest (separately for each outcome); treatment discontinuation, treatment switch, death, or end of study.
2016-2019
Stroke
Time Frame: 2016-2019
The follow-up period will be from the index date to death or end of study (31 December 2019). For the comparative analyses of clinical outcomes the follow-up period will be from the index date to the earliest of an outcome of interest (separately for each outcome); treatment discontinuation, treatment switch, death, or end of study.
2016-2019

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Pfizer

Investigators

  • Study Director: Pfizer CT.gov Call Center, Pfizer

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 1, 2022

Primary Completion (Actual)

May 29, 2026

Study Completion (Actual)

May 29, 2026

Study Registration Dates

First Submitted

August 31, 2021

First Submitted That Met QC Criteria

August 31, 2021

First Posted (Actual)

September 9, 2021

Study Record Updates

Last Update Posted (Actual)

June 30, 2026

Last Update Submitted That Met QC Criteria

June 25, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • B0661161
  • NCT05038228 (Registry Identifier: ClinicalTrials.gov)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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