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ClinicalTrials.gov public records Last synced Oct 11, 2026, 4:54 AM EDT

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Showing 73–96 of 135 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Thrombotic Thrombocytopenic Purpura Clear all
Completed Phase 2 Interventional Results available

Phase 2, Parallel Group, Rollover Study of AKR-501 in Patients With ChronicITP Who Completed 28 Days of Study Treatment in Protocol 501-CL-003

NCT00625443
View directory record Official record
Conditions
Idiopathic Thrombocytopenic Purpura
Interventions
Blinded (placebo), Open Label (Avatrombopag tablets), Blinded (Avatrombopoag tablets)
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
12
States / cities
Anaheim, California • Bakersfield, California • Manchester, Connecticut + 8 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2018 · Synced Oct 11, 2026, 4:54 AM EDT
Terminated No phase listed Observational

Observational Study of Fostamatinib as Second Line Therapy in Adult Patients With Immune Thrombocytopenia (ITP) and Insufficient Response to a Prior Therapy

NCT04904276
View directory record Official record
Conditions
ITP, Immune Thrombocytopenia
Interventions
Fostamatinib
Drug
Lead sponsor
Rigel Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
14
States / cities
Tamarac, Florida • Springfield, Illinois • Kansas City, Kansas + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2024 · Synced Oct 11, 2026, 4:54 AM EDT
Not listed Not applicable Interventional

Autologous Peripheral Blood Stem Cell Transplantation in Patients With Life Threatening Autoimmune Diseases

NCT00006055
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 11, 2026, 4:54 AM EDT
Terminated Phase 3 Interventional Results available

A Phase 3, Multicenter, Randomized, Double-blind,Active-controlled, Parallel-group Trial With an Open-labelExtension Phase to Evaluate the Efficacy and Safety of OralE5501 Versus Eltrombopag, in Adults With Chronic ImmuneThrombocytopenia (Idiopathic Thrombocytopenic Purpura)

NCT01433978
View directory record Official record
Conditions
Idiopathic Thrombocytopenic Purpura
Interventions
Eltrombopag, Avatrombopag, Standard of care
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Watertown, South Dakota
Source: ClinicalTrials.gov public record
Updated Feb 6, 2018 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 3 Interventional Results available

IGIV Study for Chronic ITP Patients Ages 3-70

NCT00511147
View directory record Official record
Conditions
Idiopathic Thrombocytopenic Purpura
Interventions
IGIV3I Grifols 10%
Biological
Lead sponsor
Grifols Biologicals, LLC
Industry
Eligibility
3 Years to 70 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
31
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Tucson, Arizona + 26 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2017 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 2 Interventional Results available

Study to Assess Efficacy and Safety of Anti-von Willebrand Factor (vWF) Nanobody in Patients With Acquired Thrombotic Thrombocytopenic Purpura (aTTP)

NCT01151423
View directory record Official record
Conditions
Acquired Thrombotic Thrombocytopenic Purpura
Interventions
Caplacizumab, Placebo
Biological
Lead sponsor
Ablynx, a Sanofi company
Industry
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
13
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Atlanta, Georgia + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Oct 11, 2026, 4:54 AM EDT
Withdrawn Phase 2 Interventional

A Phase 2 Study to Evaluate the Safety and Efficacy of KZR-616 in Patients With AIHA and ITP

NCT04039477
View directory record Official record
Conditions
Autoimmune Hemolytic Anemia, Immune Thrombocytopenia
Interventions
KZR-616
Drug
Lead sponsor
Kezar Life Sciences, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
15
States / cities
Los Angeles, California • San Francisco, California • Jacksonville, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2020 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Efficacy and Safety of Efgartigimod PH20 Subcutaneous in Adult Patients With Primary Immune Thrombocytopenia

NCT04687072
View directory record Official record
Conditions
Primary Immune Thrombocytopenia
Interventions
Efgartigimod PH20 SC, Placebo PH20 SC
Biological · Other
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
14
States / cities
Springdale, Arkansas • Los Angeles, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2024 · Synced Oct 11, 2026, 4:54 AM EDT
Recruiting Phase 3 Interventional

A Study of Romiplostim Plus Predniso(lo)ne vs. Predniso(lo)ne Alone for the Treatment of Previously Untreated Primary Immune Thrombocytopenia (ITP)

NCT07700238
View directory record Official record
Conditions
Primary Immune Thrombocytopenia
Interventions
Romiplostim, Predniso(lo)ne
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 100 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
3
States / cities
Long Beach, California • Peoria, Illinois • Fredericksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 3 Interventional Results available

Open Label Study of R788 in the Treatment of Persistent/Chronic Immune Thrombocytopenic Purpura (ITP)

NCT02077192
View directory record Official record
Conditions
Immune Thrombocytopenic Purpura
Interventions
Fostamatinib Disodium
Drug
Lead sponsor
Rigel Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
9
States / cities
Tucson, Arizona • Peoria, Illinois • Lafayette, Indiana + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2023 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 2 Interventional

Daclizumab to Treat Chronic Immune Thrombocytopenia

NCT00049725
View directory record Official record
Conditions
Thrombocytopenia
Interventions
Daclizumab
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
Not listed
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Early Phase 1 Interventional

A Pilot Study of N-acetylcysteine in Thrombotic Thrombocytopenia Purpura

NCT01808521
View directory record Official record
Conditions
Purpura, Thrombotic Thrombocytopenic, TTP
Interventions
N-Acetylcysteine
Drug
Lead sponsor
Bloodworks
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 20, 2017 · Synced Oct 11, 2026, 4:54 AM EDT
Completed No phase listed Observational

Prospective Psychometric Evaluation Study of a Patient-reported Outcomes (PRO) Instrument for Congenital Thrombotic Thrombocytopenic Purpura (cTTP, Upshaw-Schulman Syndrome [USS], Hereditary Thrombotic Thrombocytopenic Purpura [hTTP]

NCT03519672
View directory record Official record
Conditions
Congenital Thrombotic Thrombocytopenic Purpura
Interventions
No intervention
Other
Lead sponsor
Baxalta now part of Shire
Industry
Eligibility
12 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Atlanta, Georgia • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 17, 2021 · Synced Oct 11, 2026, 4:54 AM EDT
Terminated Phase 3 Interventional Results available

A Study to Investigate the Long-term Safety, Tolerability, and Efficacy of Rozanolixizumab in Study Participants With Persistent or Chronic Primary Immune Thrombocytopenia (ITP)

NCT04596995
View directory record Official record
Conditions
Primary Immune Thrombocytopenia
Interventions
Rozanolixizumab
Drug
Lead sponsor
UCB Biopharma SRL
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 2 Interventional

Phase II Study of High-Dose Cyclophosphamide in Patients With Severe Autoimmune Hematologic Disease

NCT00010387
View directory record Official record
Conditions
Anemia, Hemolytic, Autoimmune, Felty Syndrome, Purpura, Thrombocytopenic, Autoimmune Diseases
Interventions
cyclophosphamide, filgrastim
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
Not listed
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 10, 2008 · Synced Oct 11, 2026, 4:54 AM EDT
Terminated Phase 2 Interventional

A Phase 2 Study of VLX-1005 Versus Placebo in Suspected Heparin Induced Thrombocytopenia

NCT05785819
View directory record Official record
Conditions
Thrombocytopenia, Immune, Heparin Induced Thrombocytopenia
Interventions
VLX-1005, Placebo
Drug
Lead sponsor
Veralox Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
14
States / cities
Stanford, California • Aurora, Colorado • New Haven, Connecticut + 9 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 3 Interventional Results available

Eltrombopag vs Standard Front Line Management for Newly Diagnosed Immune Thrombocytopenia (ITP) in Children

NCT03939637
View directory record Official record
Conditions
Immune Thrombocytopenia
Interventions
Eltrombopag, Steroids, IVIG, Rho(D) Immune Globulin
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
1 Year to 18 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
27
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Oct 11, 2026, 4:54 AM EDT
Terminated Phase 2 Interventional Results available

Safety Study of Danazol With Plasma Exchange and Steroids for the Treatment of Thrombotic Thrombocytopenic Purpura (TTP)

NCT00953771
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 23, 2024 · Synced Oct 11, 2026, 4:54 AM EDT
Completed Phase 3 Interventional Results available

EXTEND (Eltrombopag Extended Dosing Study)

NCT00351468
View directory record Official record
Conditions
Purpura, Thrombocytopaenic, Idiopathic
Interventions
eltrombopag olamine (SB-497115-GR)
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
23
States / cities
Huntsville, Alabama • Mobile, Alabama • Jonesboro, Arkansas + 20 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced Oct 11, 2026, 4:54 AM EDT
Recruiting No phase listed Observational

Genotype and Phenotype Correlation in Hereditary Thrombotic Thrombocytopenic Purpura (Upshaw-Schulman Syndrome)

NCT01257269
View directory record Official record
Conditions
Thrombotic Thrombocytopenic Purpura, Congenital Thrombotic Thrombocytopenic Purpura, Familial Thrombotic Thrombocytopenic Purpura, Thrombotic Thrombocytopenic Purpura, Congenital, Upshaw-Schulman Syndrome
Interventions
Observation
Other
Lead sponsor
Insel Gruppe AG, University Hospital Bern
Other
Eligibility
Not listed
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2030
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Oct 11, 2023 · Synced Oct 11, 2026, 4:54 AM EDT
Terminated Phase 3 Interventional Results available

Evaluating the Effectiveness of Adding Rituximab to Standard Treatment for Thrombotic Thrombocytopenic Purpura (TTP)

NCT00799773
View directory record Official record
Conditions
Thrombotic Thrombocytopenic Purpura
Interventions
Rituximab, Plasma exchange, Corticosteroids
Drug · Procedure
Lead sponsor
Carelon Research
Other
Eligibility
12 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
23
States / cities
Birmingham, Alabama • Atlanta, Georgia • Iowa City, Iowa + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2013 · Synced Oct 11, 2026, 4:54 AM EDT
Completed No phase listed Observational

Cognitive Status, Fatigue and Inflammation in Patients With Immune Thrombocytopenia (ITP)

NCT06665308
View directory record Official record
Conditions
Chronic Immune Thrombocytopenia, Primary Immune Thrombocytopenia, Adult Immune Thrombocytopenia
Interventions
No intervention
Other
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
3
States / cities
Los Angeles, California • Boston, Massachusetts • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Oct 11, 2026, 4:54 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Use of Rituximab Treatment in Addition to Standard Care for Newly Presenting Thrombotic Thrombocytopenic Purpura

NCT00251277
View directory record Official record
Conditions
Thrombotic Thrombocytopenic Purpura
Interventions
Rituximab
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
17 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 15, 2012 · Synced Oct 11, 2026, 4:54 AM EDT
Not listed No phase listed Observational

Identifying Characteristics of Bone Marrow Failure Syndromes

NCT00315419
View directory record Official record
Conditions
Bone Marrow Failure Syndromes, Anemia, Aplastic, Myelodysplastic Syndromes, Hemoglobinuria, Paroxysmal, Red-Cell Aplasia, Pure, Purpura, Thrombocytopenic, Leukemia, Lymphocytic
Interventions
Not listed
Lead sponsor
Office of Rare Diseases (ORD)
NIH
Eligibility
11 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
4
States / cities
Los Angeles, California • Tampa, Florida • Cleveland, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2010 · Synced Oct 11, 2026, 4:54 AM EDT