findmyKOL
Clinical trialNCT03619863CompletedObservational

ATHN 7: Hemophilia Natural History Study

SponsorAmerican Thrombosis and Hemostasis NetworkEnrollment395Haemophilia A Without InhibitorHaemophilia B Without InhibitorHemophilia A With InhibitorHemophilia B With Inhibitor
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

  • Michael Recht, MD, PhD

    The Hemophilia Center at Oregon Health & Science University

    Principal Investigator
  • Tyler Buckner, MD, MSc

    Hemophilia and Thrombosis Center/ University of Colorado Anschutz Medical Campus

    Principal Investigator

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

29 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • Arizona Hemophilia and Thrombosis Center at Phoenix Children'S Hospital

    Phoenix, Arizona, United States

  • Orthopaedic Institute for Children Htc

    Los Angeles, California, United States

  • Orthopedic Institute for Children Hemophilia Program

    Los Angeles, California, United States

  • Rady Children'S Hospital San Diego

    San Diego, California, United States

  • Hemophilia and Thrombosis Center/ University of Colorado Anschutz Medical Campus

    Aurora, Colorado, United States

  • University of Florida Hemophilia Treatment Center

    Gainesville, Florida, United States

  • Comprehensive Bleeding Disorders Center at Emory University and Children'S Healthcare of Atlanta

    Atlanta, Georgia, United States

  • Rush University Medical Center

    Chicago, Illinois, United States

  • Indiana Hemophilia and Thrombosis Center (ihtc)

    Indianapolis, Indiana, United States

  • Louisiana Center for Bleeding and Clotting Disorders

    New Orleans, Louisiana, United States

  • Louisiana Center for Bleeding and Clotting Disorders, Tulane University

    New Orleans, Louisiana, United States

  • Maine Hemophilia and Thrombosis Center

    Scarborough, Maine, United States

  • Massachusetts General Hospital Comprehensive Hemophilia and Thrombosis Treatment Center

    Boston, Massachusetts, United States

  • Michigan State University Center for Bleeding and Clotting Disorders

    East Lansing, Michigan, United States

  • Children'S Mercy Hospital - Kansas City

    Kansas City, Missouri, United States

  • the John Bouhasin Center for Children With Bleeding Disorders

    St Louis, Missouri, United States

  • Hemostasis and Thrombosis Center of Nevada

    Las Vegas, Nevada, United States

  • Hemostasis and Thrombosis Center of Nevada

    Reno, Nevada, United States

  • Newark Beth Israel Medical Center

    Newark, New Jersey, United States

  • Weill Cornell Medicine

    New York, New York, United States

  • Wake Forest University Health Science

    Winston-Salem, North Carolina, United States

  • Northwest Ohio Hemophilia Treatment Center at the Toledo Hospital

    Toledo, Ohio, United States

  • the Hemophilia Center at Oregon Health & Science University

    Portland, Oregon, United States

  • Children'S Hospital of Philadelphia (chop)

    Philadelphia, Pennsylvania, United States

  • Penn Comprehensive Hemophilia and Thrombophilia Program/hospital of the University of Pennsylvania

    Philadelphia, Pennsylvania, United States

  • St Jude Children'S Research Hospital

    Memphis, Tennessee, United States

  • the Center for Cancer and Blood Disorders, Children'S Medical Center of Dallas

    Dallas, Texas, United States

  • Gulf States Hemophilia and Thrombosis Center

    Houston, Texas, United States

  • Comprehensive Center for Bleeding Disorders

    Milwaukee, Wisconsin, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
24 Oct 2018
Primary completion
31 May 2023
Completion
31 Mar 2024
Last update posted
12 Feb 2025
Registered enrollment
395
Registry id
NCT03619863

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.