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NCT04398628Recruiting

ATHN Transcends: A Natural History Study of Non-Neoplastic Hematologic Disorders

American Thrombosis and Hemostasis Network

Start Date

9/30/2020

Completion Date

12/1/2035

Summary

In parallel with the growth of ATHN's clinical studies, the number of new therapies for all blood disorders is increasing significantly. Some of the recently FDA-approved therapies for congenital and acquired hematologic conditions have not yet demonstrated long-term safety and effectiveness beyond the pivotal trials that led to their approval. In addition, results from well controlled, pivotal studies often cannot be replicated once a therapy has been approved for general use.2,3,4,5 In 2019 alone, the FDA has issued approvals for 24 new therapies for congenital and acquired hematologic conditions.6 In addition, almost 10,000 new studies for hematologic diseases are currently registered on www.clinicaltrials.gov.7 With this increase in potential new therapies possible, it is imperative that clinicians and clinical researchers in the field of non-neoplastic hematology have a uniform, secure, unbiased, and enduring method to collect long-term safety and efficacy data. As emphasized in a recently published review, accurate, uniform and quality national data collection is critical in clinical research, particularly for longitudinal cohort studies covering a lifetime of biologic risk.8

Detailed Description

This is a longitudinal, natural history observational cohort study being conducted at approximately 150 ATHN-affiliated sites with a target accrual of 3,000 participants. Participants will be followed for a minimum of 15 years on an assigned arm within a cohort; however, arm or module participation may last longer, and participants will continue participation in the arm or module for its duration. Harmonized data elements will be collected at the time of enrollment, semi-annually (every 6 months), annually, ad hoc, and as defined by the terms of individual arms and modules. Data will be collected for participants enrolled in cohort-specific arms and modules. Each participant will be assigned to a single cohort: Hemophilia, von Willebrand Disease, Congenital Platelet Disorders, Rare Disorders, Bleeding Not Otherwise Specified (NOS), Thrombosis/Thrombophilia, or Non-Neoplastic Hematologic Conditions. Study arms and study modules are developed to advance the exploration of blood disorders disease specific insights by ATHN and its partners. Arms may branch off into product-specific data collection via Modules to be collected during the study, in conjunction with planned study assessments. ATHN Transcends Co- Principal Investigators: Tammuella Chrisentery-Singleton, MD Ochsner Clinic Foundation American Thrombosis and Hemostasis Network Michael Recht, MD, PhD, MBA Yale University School of Medicine National Bleeding Disorders Foundation PUPs Arm Principal Investigator: Shannon Carpenter, MD, MS University of Missouri Kansas City School of Medicine Children's Mercy Hospital ALTUVIIO Module Principal Investigator: Shannon Carpenter, MD, MS University of Missouri Kansas City School of Medicine Children's Mercy Hospital INHIBIT Module Principal Investigator: Nicoletta Machin DO, MS Hemophilia Center of Western Pennsylvania University of Pittsburgh Medical Center Hemophilia Natural History Arm Principal Investigator: Fernando Corrales-Medina, MD, FAAP University of Miami-Comprehensive Hemophilia Treatment Center University of Miami-Miller School of Medicine Rebinyn Module Co-Principal Investigators: Lauren Amos, MD University of Missouri Kansas City School of Medicine Children's Mercy Hospital Guy Young, MD University of Southern California Children's Hospital Los Angeles Distress Module Principal Investigator: Tammuella Chrisentery-Singleton, MD Ochsner Clinic Foundation American Thrombosis and Hemostasis Network Hemlibra Module Principal Investigator: Fernando Corrales-Medina, MD, FAAP University of Miami-Comprehensive Hemophilia Treatment Center University of Miami-Miller School of Medicine Hemophilia Gene Therapy Outcomes Arm: Co-Principal Investigators: Janice M. Staber, MD Iowa Hemophilia and Thrombosis Center University of Iowa Stead Family Children's Hospital Ulrike M. Reiss, MD Hemophilia Treatment Center St. Jude's Children's Research Hospital HEMGENIX Module Co-Principal Investigators: Janice M. Staber, MD Iowa Hemophilia and Thrombosis Center University of Iowa Stead Family Children's Hospital Ulrike M. Reiss, MD Hemophilia Treatment Center, St. Jude's Children's Research Hospital Severe VWD Natural History Arm: Co-Principal Investigators: Robert F. Sidonio, Jr., MD, MSc Aflac Cancer and Blood Disorders Center, Hemophilia of Georgia Center for Bleeding and Clotting Disorders Angela C. Weyand, MD C.S. Mott Children's Hospital, University of Michigan Medical School, Ann Arbor Congenital Platelet Disorders Natural History Arm: Principal Investigator Sanjay Ahuja, MD Innovative Hematology, Indiana Hemophilia \& Thrombosis Center Glanzmann Thrombasthenia Module: Co-Principal Investigators: Divya Citla-Sridhar, MD University of Arkansas for Medical Sciences Arkansas Children's Hospital Meera Chitlur, MD Central Michigan University, Children's Hospital of Michigan Hemophilia Cohort This cohort includes three Arms and six Modules: Previously Untreated Patients (PUPs) Arm This is a pediatric focused Arm of PUPs with hemophilia A or B of any severity. Efanestoctocog alfa (ALTUVIIIO®) Module The purpose is to investigate the safety, tolerability, and effectiveness of efanesoctocog alfa (ALTUVIIIO®) in PUPs with severe hemophilia A. INHIBIT Module This is an observational study assessing the rate of inhibitor formation in young children with severe hemophilia A in the current treatment era. Hemophilia Natural History Arm This Arm is investigating the safety, effectiveness, and practice of treatment for people with hemophilia. Emicizumab (Hemlibra®) Module All participants treated with Hemlibra® are eligible to participate. Distress Module Participants with Congenital Hemophilia A or B, 18 years of age or older, will be followed longitudinally for 2 years or from time of enrollment for a total planned study duration of 3 years Nonacog beta pegol (Rebinyn®) Module The Rebinyn® Module is a prospective study in hemophilia B participants without inhibitors. Hemophilia Gene Therapy Outcomes Arm This Arm is investigating the safety and effectiveness of gene therapy in people with hemophilia. Etranacogene dezaparvovec (HEMGENIX®) Module This is an observational study to characterize the effectiveness and safety of HEMGENIX® in participants with hemophilia B. Congenital Platelet Disorders (CPD) Natural History Arm: The CPD Arm is investigating the natural history of the safety and efficacy of hemostatic therapies (such as platelet transfusions, desmopressin, antifibrinolytics, recombinant factor VIIa) in the prevention or treatment of bleeding events (on demand, surgery, prophylaxis) in adult and pediatric participants with inherited congenital platelet disorders.. Glanzmann Thrombasthenia (GT) Module: This Module is a study of bleeding symptoms, treatments, and treatment outcomes in patients with Glanzmann thrombasthenia. Von Willebrand Disease Cohort No arms or modules open at this time. Rare Disorders Cohort No arms or modules open at this time. Bleeding NOS No arms or modules open at this time. Thrombosis/Thrombophilia No arms or modules open at this time. Non-Neoplastic Hematologic Conditions No arms or modules open at this time.

Eligibility Criteria

Age Range: No minimum to No maximum

Participants who meet the following inclusion criteria and none of the exclusion criteria are eligible for enrollment in one of the open disease-specific arms. Inclusion Criteria: 1. Any age 2. Having a congenital or acquired blood disorder; or 3. Having a bleeding phenotype as indicated by an age adjusted abnormal ISTH Bleeding Assessment Tool score with an unknown diagnosis; or 4. Connective tissue disorder with bleeding tendency as indicated by an age adjusted abnormal ISTH Bleeding Assessment Tool score. 5. Eligible for a currently active disease-specific arm. 6. Concurrent enrollment in the ATHNdataset or current ATHNdataset participant. Exclusion Criteria: 1\. Does not qualify for inclusion in a currently activedisease-specific arm; participants may be eligible to enroll as future cohorts and arms are activated; 2. Unable to give informed consent or assent 3. Unwilling to perform study procedures Cohort Participant Selection Each participant is to be enrolled in the cohort for which they qualify as defined below. Hemophilia Cohort Inclusion Criteria: Participants who meet any of the following inclusion criteria are eligible for enrollment into this cohort: 1. Factor VIII or factor IX activity \<50%, without another explanation for low clotting factor other than congenital hemophilia or being a known carrier for congenital hemophilia; OR 2. Carrier for congenital hemophilia with a factor VIII \>=50% or factor IX activity \>=50% with or without a bleeding phenotype as indicated by an ISTH Bleeding Assessment Tool score of ≥4 for adult males, ≥6 for adult females, or ≥3 for children younger than 18 years OR 3. Known congenital hemophilia that have a factor level \>50% after receiving vector, OR 4. Acquired hemophilia. Exclusion Criteria: None Von Willebrand Disease Cohort Inclusion Criteria: Participants who meet the following inclusion criteria are eligible for enrollment into this cohort: 1\. Meeting the definition of VWD or low VWF per most recent international guidelines Exclusion Criteria: None Congenital Platelet Disorders Cohort Inclusion Criteria: Participants who meet the following inclusion criteria are eligible for enrollment into this cohort: 1. Abnormalities of platelet function a. Glanzmann thrombasthenia (GPIIb or GPIIIa) b. Bernard-Soulier syndrome (GPIbalpha, GPIbbeta, or GPIX) 2. Abnormalities of platelet granules 3. Abnormalities of platelet signal transduction 4. Abnormalities of platelet secretion 5. Collagen Receptor Defect 6. ADP Receptor Defect 7. Thromboxane Receptor Defect 8. Giant Platelet Disorder 9. Abnormalities in platelet aggregation testing due to another or unknown cause (not drug related) Exclusion Criteria: 1\. Platelet disorders secondary to medications or other substances Rare Disorders Cohort Inclusion Criteria: Participants who meet the following inclusion criteria are eligible for enrollment into this cohort: 1\. Have an established Rare Coagulation Disorder (RCD) diagnosis of one of the following: 1. PAI-1 deficiency 2. Factor I, II, V, VII, X, XI, XIII deficiencies 3. Combined FV and FVIII deficiency 4. Plasminogen deficiency 5. Decreased tissue plasminogen activator 6. Afibrinogenemia/hypofibrinogenemia/dysfibrinogenemia 7. Thrombotic Thrombocytopenia Purpura or Congenital Hemolytic Uremic Syndrome 8. Wiskott-Aldrich 9. Methylenetetrahydrofolate Reductase Deficiency Exclusion Criteria: None Bleeding NOS Cohort Inclusion Criteria: Participants who meet the following inclusion criteria are eligible for enrollment into this cohort: 1. Have a bleeding phenotype as indicated by an ISTH Bleeding Assessment Tool score of ≥4 for adult males, ≥6 for adult females, or ≥3 for children younger than 18 years with an unknown diagnosis, OR 2. Connective tissue disorder with bleeding tendency as indicated by an ISTH Bleeding Assessment Tool score of ≥4 for adult males, ≥6 for adult females, or ≥3 for children younger than 18 years. Exclusion Criteria: None Thrombosis/Thrombophilia Cohort Inclusion Criteria Participants who meet the following inclusion criteria are eligible for enrollment into this cohort: 1\. Have a prior history of arterial or venous thrombosis. 2. Participants with a known congenital or acquired thrombophilia with or without thrombosis. a. Common congenital thrombophilias: i. Protein C deficiency ii. Protein S deficiency iii. Antithrombin deficiency iv. Factor V Leiden v. Prothrombin gene mutation b. Rare genetic factors i. Hyperhomocysteinemia c. Indeterminate genetic factors i. Elevated factor VIII ii. Elevated factor IX iii. Elevated factor XI iv. Elevated lipoprotein (a) d. Acquired thrombophilias i. Lupus anticoagulant ii. Anti-cardiolipin antibodies/Beta2 glycoprotein antibodies iii. Antiphospholipid syndrome Exclusion Criteria Acquired thrombophilia secondary to medications (birth control pills or hormone replacement therapy), overweight or obesity, smoking, cancer, pregnancy, surgery, injury, prolonged inactivity/bedrest, heart failure, inflammatory bowel disease, or kidney disease Non-Neoplastic Hematologic Conditions Cohort Inclusion Criteria Participants who meet the following inclusion criteria are eligible for enrollment into this cohort: 1\. Having any congenital or acquired non-neoplastic hematologic disorder not included in any other cohort Exclusion Criteria None Arm/Module Participant Selection Previously Untreated Patients Arm Inclusion Criteria: 1. Diagnosis of congenital hemophilia A (FVIII \<40%) or hemophilia B (FIX \<40% or below lower limit for age) 2. Age \<18 years at time of enrollment 3. Parent or authorized guardian or legally authorized representative (LAR) can provide informed consent 4. Care established at one of the ATHN Transcends participating HTCs 5. Clotting Factor Concentrate (CFC) exposure, fresh frozen plasma (FFP), cryoprecipitate, and single donor platelets \<3 exposure days (ED) Exclusion Criteria 1. Concomitant diagnosis with another bleeding disorder 2. History of a confirmed, positive inhibitor INHIBIT Module Inclusion Criteria: 1\. Diagnosis of severe factor VIII deficiency with baseline factor VIII level \<1% 2. Initiating or plan to initiate prophylaxis with emicizumab or factor replacement 3. Factor concentrate exposure, Fresh Frozen Plasma (FFP), cryoprecipitate, and single donor platelets ≤3 EDs 4. ≤5 years of age Exclusion Criteria 1. Concomitant diagnosis with bleeding disorder other than hemophilia A 2. Immune disorder 3. Previous history or presence of factor VIII inhibitor. A confirmed, positive inhibitor is defined as two consecutive positive inhibitor titers (≥ 0.6 BU) that result in changes in treatment recommendations. Efanesoctocog alfa (ALTUVIIIO®) Module Inclusion criteria: 1. Ability of the potential participant's legally authorized representative (e.g., their parent or legal guardian) to understand the purpose and risks of the study and provide signed and dated informed consent and authorization to use confidential health information in accordance with national and local participant privacy regulation. 2. People with severe HA with a baseline FVIII activity of less than 1%. (While inclusion for participation in ATHN Transcends lists \<5% FVIII activity, this proposed module will limit enrollment to people with FVIII activity levels of \<1%.) Other severities may be included per ATHN Transcends PI approval. 3. \<18 years of age. 4. No history of a confirmed, positive FVIII inhibitor. 5. Sex assigned at birth of male, female, or intersex. 6. Participants should have no more than three (3) exposure days of blood products (fresh frozen plasma, cryoprecipitate, or platelets), no more than three (3) doses of any FVIII concentrate other than efanesoctocog alfa, and up to three (3) doses of efanesoctocog alfa prior to enrollment. 7. Site PI confirmed all inclusion criteria has been met. Exclusion criteria: 1. Not meeting all the inclusion criteria; confirmed by site PI. 2. Any exposure to blood products or FVIII replacement products except as described in the inclusion criteria. 3. History of positive inhibitor testing. 4. History of hypersensitivity reactions associated with efanesoctocog alfa administration. 5. Other coagulation disorder(s) in addition to Hemophilia A. 6. Any concurrent clinically significant major disease such as cancer that, in the opinion of the investigator, would make the participant unsuitable for enrollment. 7. Concurrent systemic treatment with chemotherapy and/or other immunosuppressant medications. Use of corticosteroids for the treatment of asthma or management of acute allergic or otherwise life-threatening episodes is allowed except for systemic corticosteroid treatment given to children daily or on an alternate day schedule at \> 2 mg/kg/day of prednisone or its equivalent or \> 20 mg/day if the duration is longer than 14 days. 8. Enrollment in a concurrent clinical interventional drug study. 9. Intake of an Investigational Medicinal Product within three (3) months prior to inclusion in this study. 10. Inability to comply with study requirements. 11. Other, unspecified reasons that, in the investigator's opinion, make the participant unsuitable for enrollment. Hemophilia Natural History Arm Inclusion Criteria 1. Congenital or acquired hemophilia A or B of any severity with or without inhibitors receiving a current therapy, a non-factor product, or for whom use of a non-factor product is a possibility, OR 2. Females of any age, with confirmed congenital hemophilia A or B carrier status with genetic mutational analysis and any factor level. Exclusion Criteria 1. Presence of any known bleeding disorder other than congenital hemophilia A or B 2. Presence of concurrent hemophilia and a second hemostatic defect (low von Willebrand Factor (vWF) without vWD diagnosis is not excluded) 3. Unable or unwilling to comply with the study arm protocol. Nonacog beta pegol (Rebinyn®) Module Inclusion Criteria: 1. Has provided signed written consent for the nonacog beta pegol (Rebinyn®)Module before any study-related activities. 2. Male participants, at any age with hemophilia B, naïve or minimally exposed (up to 3 EDs) to nonacog beta pegol treatment at time of study enrollment. Additional doses may be allowable per ATHN Transcends PI approval. 3. Decision to initiate continuous prophylaxis treatment with commercially available nonacog beta pegol has been made by the participant(s)/Legally Authorized Representative(s) (LAR(s)) and the treating physician before and independently from the decision to include the participant in this study. Exclusion Criteria: 1. Previous participation in this study. Participation is defined as having given informed consent in this study. 2. Mental incapacity, unwillingness or language barriers precluding adequate understanding or cooperation, including a diagnosis or suspicion of attention deficit hyperactivity disorder (ADHD) or autism spectrum disorder (ASD) per the discretion of the Principal Investigator. 3. Known or suspected hypersensitivity to nonacog beta pegol or related products. 4. Clinical suspicion or presence of FIX inhibitor at time of inclusion. 5. Inability or unwillingness to undergo neurological assessment/structured developmental history. Emicizumab (Hemlibra®) Module Inclusion Criteria: 1. Participant currently treated with emicizumab (Hemlibra®) 2. Currently enrolled in the Hemophilia Natural History Arm of ATHN Transcends Exclusion Criteria: 1\. Unable or unwilling to comply with the protocol Distress Module Inclusion Criteria: 1. Congenital hemophilia A or B of any severity with or without inhibitors receiving a current therapy, a non-factor product, or for whom use of a non-factor product is a possibility 2. Age 18 years of age or older 3. English speaking Exclusion Criteria: 1. Presence of any known bleeding disorder other than congenital hemophilia A or B; 2. Presence of concurrent hemophilia and a second hemostatic defect (low von Willebrand Factor (vWF) without vWD diagnosis is not excluded); and 3. Unable or unwilling to comply with the study arm protocol Hemophilia Gene Therapy Outcomes Arm Inclusion Criteria 1. Hemophilia A or B of any severity with or without inhibitors having received or will receive a hemophilia gene transfer product in the next 6 months. 2. Age 18 years and older. 3. Able to give informed consent. Exclusion Criteria None Etranacogene dezaparvovec (HEMGENIX®) Module Inclusion Criteria: Etranacogene dezaparvovec (HEMGENIX®) Cohort 1. Age 18 years of age or older 2. Treatment with commercial etranacogene dezaparvovec (HEMGENIX®) 3. Have provided signed written informed consent within 3 months before or within 6 months after etranacogene dezaparvovec (HEMGENIX®) treatment, or within 6 months of when the study is initiated at the treating site. FIX Prophylaxis Cohort 1. Age 18 years of age or older 2. Treatment with FIX prophylaxis therapy 3. Has provided signed written consent at any time for ATHN Transcends Study Exclusion Criteria, both cohorts: 1\. Have been treated with etranacogene dezaparvovec in a clinical trial prior to commercial availability. These patients are still eligible for enrollment in the Gene Therapy Outcomes Arm, and their data may be collected for separate analysis. Congenital Platelet Disorders Arm Inclusion Criteria 1. Platelet adhesion defect 1. Bernard Soulier syndrome (Defective GPIb-IX-V receptor, impaired adhesion to vWF) 2. Velocardio-facial syndrome/DiGeorge syndrome (Defective GPIb-IX-V receptor) 3. Platelet type vWD (Defective GPIb-IX-V, gain of function interaction between vWF-GP1bα) 2. Platelet aggregation defect 1. Glanzmann thrombasthenia (Defective integrin αIIbβ3 (GPIIb/IIIa) 2. Platelet aggregation defect, NOS 3. Agonist receptor defects 1. Epinephrine 2. ADP 3. Collagen 4. Thromboxane A2 4. Platelet signaling defects 1. Cyclooxygenase deficiency (PTGS1 mutation) 2. Phospholipase A2 deficiency 3. Thromboxane synthase deficiency (TBXAS1 mutation) 4. G protein activation defect (GNAS mutation) 5. Scott syndrome (defect in phosphatidyl serine translocation) 5. Platelet Granule disorders 1. Dense granule storage pool disorder * Hermansky Pudlak syndrome * Chediak Higashi syndrome * Griscelli syndrome 2. Alpha granule storage pool disorder * Grey platelet syndrome * Arthrogryposis-Renal Dysfunction-Cholestasis (ARC) syndrome * Quebec platelet disorder * Paris-Trousseau syndrome 3. Combined alpha delta granule deficiency 6. Platelet cytoskeletal structure defects 1. Wiskott Aldrich syndrome 2. MYH9 associated disorders (myosin heavy chain) * May Hegglin syndrome * Fechtner syndrome * Sebastian syndrome * Epstein syndrome 3. Other mutations * FLNA mutations (Filamin) * DIAPH1 (Actin and microtubules) * ACTN1 (alpha actinin) * TPM4 (tropomyosin) * TUBB1 (beta tubulin) 7. Other Congenital thrombocytopenias 1. Familial platelet disorders and predisposition to AML (RUNX1) 2. X linked thrombocytopenia with dyserythropoiesis (GATA1) 3. Congenital amegakaryocytic thrombocytopenia (MPL) Exclusion Criteria 1. Diagnosis of von Willebrand Disease (Meeting the definition of vWD or low vWF per most recent international guidelines) 2. Diagnosis of Hemophilia A or Hemophilia B (Factor VIII or IX ≤ 40%) Glanzmann Thrombasthenia (GT) Module Inclusion Criteria 1. Participant has signed the informed consent/assent form 2. Participant has flow cytometry or aggregometry or genetics confirmed GT 3. Participant is willing to perform study procedures, including daily bleed tracking for 3 months and further if requested 4. Participants are 2 years or older at time of consent Exclusion Criteria None

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Conditions

Hematologic DisorderBleeding DisorderConnective Tissue DisorderHemophiliaThrombosisVon Willebrand DiseasesThrombophiliaRare Bleeding DisorderPlatelet DisorderFactor IX DeficiencyFactor VIII DeficiencyThalassemiaSickle Cell Disease

Locations

Arizona Hemophilia and Thrombosis Treatment Center at Phoenix Children's Hospital

Phoenix, Arizona 85016

United States

Arkansas Center for Bleeding Disorders

Little Rock, Arkansas 72202

United States

Orthopaedic Institute for Children HTC

Los Angeles, California 90007

United States

Childrens Hospital Los Angeles

Los Angeles, California 90027-6016

United States

UCSF Benioff Children's Hospital Oakland

Oakland, California 94610

United States

University of California at Davis Hemophilia Treatment Center

Sacramento, California 95817

United States

Loma Linda Hemoglobinopathy and Inherited Bleeding Disorder Program

San Bernardino, California 92408

United States

Hemophilia & Thrombosis Treatment Center at UC San Diego Health

San Diego, California 92121

United States

Rady Children's Hospital San Diego

San Diego, California 92123

United States

University of California, San Francisco Hemophilia & Thrombosis Center

San Francisco, California 94143

United States

Connecticut Children's Medical Center

Hartford, Connecticut 06106

United States

Yale Hemophilia Treatment Center

New Haven, Connecticut 06520

United States

Delaware Hemophilia Treatment Center

Wilmington, Delaware 19801

United States

Georgetown University

Washington D.C., District of Columbia 20007

United States

Children's National Hemophilia Center

Washington D.C., District of Columbia 20010

United States

University of Florida Hemophilia Treatment Center

Gainesville, Florida 32610

United States

University of Miami Comprehensive Hemophilia Treatment Center

Miami, Florida 33136

United States

Arnold Palmer Hospital for Children - The Haley Center for Children's Cancer and Blood Disorders

Orlando, Florida 32806

United States

Johns Hopkins All Children's Hospital

St. Petersburg, Florida 33701

United States

St. Joseph's Hospital Center for Bleeding & Clotting Disorders

Tampa, Florida 33607

United States

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

Atlanta, Georgia 30308

United States

Emory/Children's Health Care of Atlanta

Atlanta, Georgia 30322

United States

Memorial Health University Medical Center

Savannah, Georgia 31403

United States

Rush University Medical Center

Chicago, Illinois 60612

United States

Bleeding and Clotting Disorders Institute

Peoria, Illinois 61664

United States

Indiana Hemophilia and Thrombosis Center

Indianapolis, Indiana 46260

United States

Iowa Hemophilia and Thrombosis Center

Iowa City, Iowa 52242

United States

Louisiana Center for Bleeding and Clotting Disorders, Tulane University

New Orleans, Louisiana 70112

United States

Maine Hemophilia and Thrombosis Center

Scarborough, Maine 04074

United States

Johns Hopkins University Hemophilia Treatment Center

Baltimore, Maryland 21287

United States

Massachusetts General Hospital Comprehensive Hemophilia and Thrombosis Treatment Center

Boston, Massachusetts 02114

United States

Central Michigan Children's Hospital of Michigan

Detroit, Michigan 48201

United States

Henry Ford Health System Bleeding and Thrombosis Treatment Center

Detroit, Michigan 48202

United States

Mayo Comprehensive Hemophilia Center

Rochester, Minnesota 55905

United States

Children's Mercy Hospital - Kansas City

Kansas City, Missouri 64108

United States

The John Bouhasin Center for Children with Bleeding Disorders

St Louis, Missouri 63104

United States

Cure 4 The Kids Foundation

Las Vegas, Nevada 89135

United States

Hemostasis and Thrombosis Center of Nevada

Reno, Nevada 89509

United States

Newark Beth Israel Medical Center - Hemophilia Center

Newark, New Jersey 07122

United States

University of New Mexico Ted R. Montoya Hemophilia & Thrombosis Program

Albuquerque, New Mexico 87131

United States

Western New York BloodCare

Buffalo, New York 14202

United States

Northwell Health Hemostasis and Thrombosis Center at Long Island Jewish and Cohen Children's Medical Center

Hyde Park, New York 11040

United States

Weill Cornell Medical College - New York Presbyterian Hospital

New York, New York 10065

United States

American Thrombosis and Hemostasis Network

Rochester, New York 14626

United States

Montefiore Medical Center

The Bronx, New York 10461

United States

Comprehensive Hemophilia Treatment Center, University of North Carolina at Chapel Hill

Chapel Hill, North Carolina 27517

United States

St. Jude Affiliate Clinic at Novant Health Hemby Children's Hospital

Charlotte, North Carolina 28204

United States

East Carolina University Hemophilia Treatment Center

Greenville, North Carolina 27834

United States

Wake Forest University Health Sciences

Winston-Salem, North Carolina 27157

United States

Akron Children's Hospital - Showers Center for Cancer & Blood Disorders

Akron, Ohio 44308

United States

Cincinnati Children's Hospital Medical Center, Hemophilia & Thrombosis Center

Cincinnati, Ohio 45229

United States

University of Cincinnati Medical Center Hemophilia Treatment Center

Cincinnati, Ohio 45267

United States

University Hospitals Health System Cleveland

Cleveland, Ohio 44106

United States

Nationwide Children's Hospital Columbus

Columbus, Ohio 43205

United States

Dayton Children's Hemostasis and Thrombosis Center

Dayton, Ohio 45404

United States

Northwest Ohio Hemophilia Treatment Center at the Toledo Hospital

Toledo, Ohio 43606

United States

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania 19104

United States

Penn Comprehensive Hemophilia and Thrombophilia Program/Hospital of the University of Pennsylvania

Philadelphia, Pennsylvania 19104

United States

Hemophilia Center of Western Pennsylvania

Pittsburgh, Pennsylvania 15213

United States

Rhode Island Hospital Hemostasis and Thrombosis Center

Providence, Rhode Island 02903

United States

St. Jude Children's Research Hospital

Memphis, Tennessee 38105

United States

Vanderbilt University Medical Center

Nashville, Tennessee 37212

United States

Children's Blood and Cancer Center of Central Texas

Austin, Texas 78723

United States

North Texas Hemophilia and Thrombosis Program - Pediatric Program / Center for Cancer & Blood Disorders

Dallas, Texas 75235

United States

North Texas Comprehensive Hemophilia Treatment Center

Dallas, Texas 75390

United States

Gulf States Hemophilia and Thrombophilia Center

Houston, Texas 77030

United States

Texas Children's Hemophilia & Thrombosis Center/Baylor College of Medicine

Houston, Texas 77030

United States

South Texas Comprehensive Hemophilia and Thrombophilia Treatment Center

San Antonio, Texas 78229

United States

Washington Center for Bleeding Disorders

Seattle, Washington 98101

United States

Hemophilia Outreach Center Green Bay

Green Bay, Wisconsin 54311

United States

Comprehensive Center for Bleeding Disorders

Milwaukee, Wisconsin 53226

United States