Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 24, 2026, 6:20 AM EDT

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Showing 217–232 of 232 matching trials from the live ClinicalTrials.gov search.
Conditions
Purpura, Thrombocytopenic, Idiopathic, Autoimmune Thrombocytopenic Purpura, Purpura, Thrombocytopenic, Autoimmune
Interventions
veltuzumab
Biological
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
8
States / cities
Los Angeles, California • Riverdale, Georgia • Tucker, Georgia + 5 more
Terminated No phase listed Observational

aHUS Observational Long Term Follow-Up

NCT01522170
Conditions
Atypical Hemolytic Uremic Syndrome
Interventions
Not listed
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
Not listed
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
16
States / cities
Atlanta, Georgia • Dunwoody, Georgia • Fort Wayne, Indiana + 12 more
Conditions
Post Thrombotic Syndrome, Deep Vein Thrombosis
Interventions
Fitbit, 30-minute education session
Device · Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
7 Years to 21 Years
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Acute Ischemic Stroke, Thrombotic Disease
Interventions
DS-1040b, Placebo
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
16
States / cities
Mobile, Alabama • Los Angeles, California • Colorado Springs, Colorado + 13 more
Conditions
Thrombotic Thrombocytopenic Purpura
Interventions
Danazol
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
New York, New York
Conditions
Primary Immune Thrombocytopenia (ITP), Primary Evans Syndrome (ES)
Interventions
ianalumab, thrombopoietin receptor agonist (TPO-RA)
Biological · Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
19
States / cities
Chandler, Arizona • Fayetteville, Arkansas • Torrance, California + 16 more
Conditions
Primary Immune Thrombocytopenia
Interventions
efgartigimod PH20 SC
Biological
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
5
States / cities
Bentonville, Arkansas • Washington D.C., District of Columbia • Fort Wayne, Indiana + 2 more
Conditions
Hemolytic Uremic Syndrome
Interventions
SYNSORB Pk, Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
6 Months to 18 Years
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2001
U.S. locations
26
States / cities
Denver, Colorado • Wilmington, Delaware • Atlanta, Georgia + 23 more
Conditions
Thrombotic Microangiopathy, Hematopoietic Stem Cell Transplant
Interventions
Not listed
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
4 Weeks and older
Enrollment
307 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
3
States / cities
Boston, Massachusetts • Akron, Ohio • Salt Lake City, Utah
Conditions
Hereditary Spherocytosis, Idiopathic Thrombocytopenic Purpura
Interventions
Single Incision Splenectomy, Laparoscopic Splenectomy
Procedure
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
1 Year to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Kansas City, Missouri
Conditions
Atrial Fibrillation, Stroke, Stroke, Cardiovascular, Vascular Cognitive Impairment, Strokes Thrombotic, Stroke, Ischemic
Interventions
Cardiac and Brain MRI
Device
Lead sponsor
Tulane University
Other
Eligibility
18 Years to 120 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
New Orleans, Louisiana
Conditions
Cerebrovascular Accident, Hypertension
Interventions
aspirin, clopidogrel, Target of Blood Pressure, placebo
Drug · Other
Lead sponsor
University of British Columbia
Other
Eligibility
30 Years and older
Enrollment
3,020 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2012
U.S. locations
39
States / cities
Mobile, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 32 more
Conditions
Acquired Thrombotic Thrombocytopenic Purpura (aTTP)
Interventions
Placebo, SHP655, Standard of Care
Other · Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
7
States / cities
Birmingham, Alabama • Boston, Massachusetts • Minneapolis, Minnesota + 4 more
Completed Phase 2 Interventional Results available

Defibrotide TMA Prophylaxis Pilot Trial

NCT03384693
Conditions
Thrombotic Microangiopathies
Interventions
Defibrotide
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
Up to 30 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
San Francisco, California
Conditions
Purpura, Schoenlein-Henoch, Graft Versus Host Disease, Anemia, Hemolytic, Autoimmune, Rheumatoid Arthritis, Churg-Strauss Syndrome, Hypersensitivity Vasculitis, Wegener's Granulomatosis, Systemic Lupus Erythematosus, Giant Cell Arteritis, Pure Red Cell Aplasia, Juvenile Rheumatoid Arthritis, Polyarteritis Nodosa, Autoimmune Thrombocytopenic Purpura, Takayasu Arteritis
Interventions
anti-thymocyte globulin, cyclophosphamide, cyclosporine, filgrastim, methylprednisolone, prednisone, Autologous Peripheral Blood Stem Cell Transplantation
Drug · Procedure
Lead sponsor
Fairview University Medical Center
Other
Eligibility
1 Year to 55 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Idiopathic Thrombocytopenia Purpura
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
3 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
1
States / cities
New York, New York