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RecruitingNCT06820515Updated Apr 21, 2026

ATHNdataset Registry

An observational study in Hemophilia, Thrombosis and Hemophilia A, sponsored by American Thrombosis and Hemostasis Network. Recruiting at 1 site in United States. Per ClinicalTrials.gov, last updated 2026-04-21.

Sponsored by American Thrombosis and Hemostasis Network · Observational

From the registry’s dates

  • Started Oct 2024; still recruiting 2 years later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
200,000
Sex
All
01

Study summary

The Hemophilia Treatment Center (HTC) where you receive care is working with The American Thrombosis and Hemostasis Network (ATHN) to look at the quality of life of people with blood disorders and problems.

Doctors, scientists, policymakers, and other health care providers need a large amount of information from a lot of people to answer scientific, public health, and policy questions about better ways to treat blood disorders. They will use the information from the ATHNdataset to answer these questions.

Read the detailed description

Participants who agree to participate will let their health information be included in the ATHNdataset Registry, and the information will be updated regularly to reflect the participant's current health status. This registry includes collecting, storing and managing health information through a secure database. The following health information will be collected:

  • Demographics (e.g., age, gender, income, education/occupation)
  • The type of blood disorder you have
  • Date you were diagnosed, or symptoms began
  • Family history of the disorder
  • Testing and assessments
  • Physical exams
  • Height, weight
  • Vital signs, including blood pressure and heart rate
  • Laboratory tests (results from blood or urine testing, or biological specimens)
  • Genetic test results
  • Imaging results (X-rays, CT scans, etc.)
  • Pharmacokinetic testing results (how drugs are processed in the body)
  • Medications used and any problems with use
  • Types of bleeds, pain and clotting problems
  • Treatments that stop your bleeding or clotting problems from occurring or getting worse
  • Surgeries and/or procedures
  • Immunizations (vaccines)
  • Devices
  • Routine care visits and injuries (trauma)
  • Other illnesses and diseases you may have
  • Allergies
  • Patient-reported outcomes (PROs), questionnaires, and surveys
  • Payment details for treatment, including insurance companies and health plans
02

Conditions studied

  • Hemophilia
  • Thrombosis
  • Hemophilia A
  • Hemophilia B
  • Sickle Cell Disease
  • Glanzmann Thrombasthenia
  • Bleeding Disorder
  • Blood Disorder
  • Von Willebrand Diseases

Keywords

  • bleed event
  • bleed treatments
  • adverse events
  • joint bleed
  • bleeding disorder
  • bleeding symptoms
03

In context

Hemophilia A

844 studies on the registry are indexed under Hemophilia A; 138 are open to participants now.

This study's planned enrollment of 200,000 is above the median of 81 across 310 observational studies indexed under Hemophilia A.

Browse Hemophilia A studies →

Lead sponsor

American Thrombosis and Hemostasis Network is the lead sponsor of 8 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Sampling method
Non-probability sample

Study population

  • Data from participants who have previously provided authorization or consent (according to local requirements) and contributed data to the ATHNdataset will be retained. These participants will be offered a chance to provide updated consent if possible.
  • All future participants from ATHN Affiliates, who meet eligibility criteria and are able to provide consent or assent, will be enrolled prospectively.
  • Participants who have previously contributed data to the ATHNdataset under the terms of an authorization form, an informed consent form, or an assent form will be offered an opportunity to consent.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Any participant evaluated for or the potential to have a blood disorder who has an encounter with an ATHN Affiliate.
  • Participants of any age.
  • Participant is able to provide consent or assent; a Legally Authorized Representative (LAR) may provide consent on a participant's behalf if a participant is unable to provide self-consent

Exclusion criteria

Exclusion Criteria:

  • Any participant unable to provide consent or assent to participate in the ATHNdataset
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
200,000 participants (estimated)
Patient registry
No

Groups and cohorts

  • Blood Disorders

    The ATHNdataset is a large, robust real-world registry that can be queried to produce curated subsets of data to support clinical care, outcomes analysis, safety monitoring, practice of treatment, advocacy, public health reporting, quality improvement projects, and research initiatives. Initiatives relying on the ATHNdataset may focus on gaining a greater understanding of blood disorders, the complications of these disorders, their social and economic costs, and the effectiveness of treatments. The population includes all individuals diagnosed with or suspected to have a blood disorder. Participants will contribute data gathered during care encounters with an ATHN Affiliate.

06

What researchers measure

Primary outcomes

  1. Comprehensive real-world clinical data registry analysis, research, advocacy, and public health reporting for the blood disorders community

    The ATHNdataset Registry objective is to develop a secure, comprehensive registry of real-world clinical data to support standardized comprehensive health information for persons living with blood disorders and public health reporting for the blood disorders community

    Time frame: 15 years

Secondary outcomes

  1. Contribute to scientific and public health reporting for the blood disorders community

    By providing a comprehensive registry for physicians, scientists, policy makers, and other health care stakeholders who require a large pool of participant information to answer questions related to blood disorders treatments

    Time frame: 20 years

07

Study locations

1 of 1 sites recruiting
  • American Thrombosis and Hemostasis Network
    Hickory, North Carolina 28601, United States
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 21, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06820515
Lead sponsor
American Thrombosis and Hemostasis Network
Responsible party
Sponsor
First posted
Feb 11, 2025
Start date
Oct 25, 2024
Primary completion
Oct 25, 2054 (estimated)
Completion
Oct 31, 2055 (estimated)
Last update
Apr 21, 2026

Study contacts

Emily Callegari, RN
Contact
ecallegari@athn.org
8003602846 ext. 124
Carol Fedor, RN
Contact
cfedor@athn.org
8003602846 ext. 122
Tammuella Chrisentery-Singleton, M.D.
principal investigator · American Thrombosis and Hemostasis Network

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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