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Showing 1–24 of 169 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Thrombotic Microangiopathy Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Eltrombopag and the Bcl-extra-large (xL) Pathway in Idiopathic Thrombocytopenic Purpura (ITP)

NCT00902018
View directory record Official record
Conditions
Immune Thrombocytopenia
Interventions
Eltrombopag, Romiplostim, healthy controls
Drug · Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 17, 2019 · Synced Sep 17, 2026, 6:18 AM EDT
Active, not recruiting Phase 3 Interventional

A Phase 3 Study to Evaluate the Safety and Efficacy of Efgartigimod PH20 Subcutaneous in Adult Patients With Primary Immune Thrombocytopenia

NCT04812925
View directory record Official record
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 – 2026
U.S. locations
5
States / cities
Bentonville, Arkansas • Washington D.C., District of Columbia • Fort Wayne, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Sep 17, 2026, 6:18 AM EDT
Recruiting Phase 2 Interventional

Efficacy and Safety Study of Narsoplimab in Pediatric Patients With High-Risk Hematopoietic Stem Cell Transplant TMA

NCT05855083
View directory record Official record
Conditions
Thrombotic Microangiopathies, Hematopoietic Stem Cell Transplantation
Interventions
Biological: narsoplimab
Drug
Lead sponsor
Omeros Corporation
Industry
Eligibility
28 Days to 17 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
8
States / cities
San Diego, California • Gainesville, Florida • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Sep 17, 2026, 6:18 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 16, 2021 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Phase 2 Interventional Results available

Eculizumab to Treat Thrombotic Microangiopathy/Atypical Hemolytic Uremic Syndrome -Associated Multiple Organ Dysfunction Syndrome in Hematopoietic Stem Cell Transplant Recipients

NCT03518203
View directory record Official record
Conditions
Thrombotic Microangiopathies, Atypical Hemolytic Uremic Syndrome, Multiple Organ Dysfunction Syndrome
Interventions
Eculizumab
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
3
States / cities
Los Angeles, California • Cincinnati, Ohio • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 20, 2023 · Synced Sep 17, 2026, 6:18 AM EDT
Terminated Phase 1Phase 2 Interventional

Study of Veltuzumab (hA20) at Different Doses in Patients With ITP

NCT00547066
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 15, 2021 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Early Phase 1 Interventional

Rituximab and Prednisone as First-Line Therapy in Treating Patients With Immune Thrombocytopenic Purpura

NCT00486421
View directory record Official record
Conditions
Nonneoplastic Condition
Interventions
Rituximab, Prednisone
Biological · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 16, 2014 · Synced Sep 17, 2026, 6:18 AM EDT
Withdrawn No phase listed Observational

Study in Adult and Pediatric Patients With HSCT-TMA

NCT04970004
View directory record Official record
Conditions
Stem Cell Transplant Complications, Thrombotic Microangiopathies
Interventions
No intervention
Other
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
1 Month and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 11, 2022 · Synced Sep 17, 2026, 6:18 AM EDT
Recruiting Phase 2 Interventional

Study to Assess the Safety and Tolerability of Tafasitamab in Adult Participants With Primary Autoimmune Blood Cell Disorders

NCT07104565
View directory record Official record
Conditions
Immune Thrombocytopenia
Interventions
INCA000585
Drug
Lead sponsor
Incyte Corporation
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
9
States / cities
Glendale, Arizona • Los Angeles, California • Lone Tree, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 17, 2026, 6:18 AM EDT
Active, not recruiting Phase 3 Interventional

A Study of Efficacy and Safety of Ianalumab Versus Placebo in Addition to Eltrombopag in Primary Immune Thrombocytopenia Patients Who Failed Steroids

NCT05653219
View directory record Official record
Conditions
Primary Immune Thrombocytopenia
Interventions
Ianalumab, Eltrombopag, Placebo
Biological · Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
9
States / cities
Yuma, Arizona • Aurora, Colorado • Evanston, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Phase 1Phase 2 Interventional

An Open-label Study of Povetacicept in Participants With Autoimmune Cytopenias (RUBY-4)

NCT05757570
View directory record Official record
Conditions
Idiopathic Thrombocytopenic Purpura, Immune Thrombocytopenia, Warm Autoimmune Hemolytic Anemia, Cold Agglutinin Disease
Interventions
Povetacicept
Drug
Lead sponsor
Alpine Immune Sciences Inc, A Subsidiary of Vertex
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
15
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Cooper City, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 17, 2026, 6:18 AM EDT
Recruiting No phase listed Observational

Atypical Hemolytic-Uremic Syndrome (aHUS) Registry

NCT01522183
View directory record Official record
Conditions
Atypical Hemolytic-Uremic Syndrome
Interventions
Not listed
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
Not listed
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2031
U.S. locations
9
States / cities
Aurora, Colorado • Washington D.C., District of Columbia • Gainesville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 17, 2026, 6:18 AM EDT
Recruiting Phase 1Phase 2 Interventional

A Study of Pirtobrutinib in Participants With Immune Thrombocytopenia

NCT06721013
View directory record Official record
Conditions
Immune Thrombocytopenia (ITP)
Interventions
Pirtobrutinib, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
11
States / cities
Los Angeles, California • Stanford, California • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Phase 1Phase 2 Interventional

Clinical Trial of Rituximab in Children and Adolescents With Chronic Idiopathic Thrombocytopenic Purpura (ITP)

NCT01713738
View directory record Official record
Conditions
Idiopathic Thrombocytopenic Purpura (ITP), Immune Thrombocytopenic Purpura (ITP)
Interventions
rituximab
Drug
Lead sponsor
Neufeld, Ellis J, MD, PhD
Individual
Eligibility
18 Months to 18 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
9
States / cities
Los Angeles, California • Palo Alto, California • San Francisco, California + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 8, 2012 · Synced Sep 17, 2026, 6:18 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Comparative Autoantibody and Immunologic Cell Marker Study

NCT02422875
View directory record Official record
Conditions
Autoimmune Diseases, Lupus Erythematosus, Systemic, Communicable Diseases
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2028
U.S. locations
3
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Sep 17, 2026, 6:18 AM EDT
Withdrawn No phase listed Observational

The Role of Microparticles as a Biomarker

NCT02626663
View directory record Official record
Conditions
Atypical Hemolytic Uremic Syndrome, Thrombotic Thrombocytopenic Purpura, Microparticles, Microangiopathic Hemolytic Anemia
Interventions
Not listed
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 120 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety Study of Eltrombopag in Pediatric Patients With Thrombocytopenia From Chronic Idiopathic Thrombocytopenic Purpura (ITP)

NCT00908037
View directory record Official record
Conditions
Purpura, Thrombocytopaenic, Idiopathic
Interventions
eltrombopag, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
1 Year to 17 Years
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
18
States / cities
Phoenix, Arizona • Orange, California • Jacksonville, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2018 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Phase 2 Interventional

Phase II Study of Rituximab in Patients With Immune Thrombocytopenic Purpura

NCT00005652
View directory record Official record
Conditions
Purpura, Thrombocytopenic, Idiopathic
Interventions
rituximab
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 8, 2008 · Synced Sep 17, 2026, 6:18 AM EDT
Recruiting Phase 1 Interventional

OM336 in Autoimmune Cytopenias

NCT07083960
View directory record Official record
Conditions
AIHA - Warm Autoimmune Hemolytic Anemia, AIHA - Cold Autoimmune Hemolytic Anemia, ITP - Immune Thrombocytopenia
Interventions
OM336
Drug
Lead sponsor
Lakefront Biotherapeutics West LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
4
States / cities
Duarte, California • Washington D.C., District of Columbia • Ann Arbor, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 17, 2026, 6:18 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 30, 2024 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Not applicable Interventional

Vaccine Response After Rituximab for Chronic, Severe Idiopathic Thrombocytopenic Purpura

NCT01713855
View directory record Official record
Conditions
Idiopathic Thrombocytopenic Purpura, Immune Thrombocytopenic Purpura
Interventions
Inactivated Trivalent Influenza vaccine
Biological
Lead sponsor
Neufeld, Ellis J, MD, PhD
Individual
Eligibility
18 Months to 18 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
3
States / cities
Los Angeles, California • Atlanta, Georgia • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 24, 2012 · Synced Sep 17, 2026, 6:18 AM EDT
Active, not recruiting Phase 2 Interventional

A Study of Ianalumab (VAY736) in Patients With Primary Immune Thrombocytopenia (ITP) Previously Treated With at Least Two Lines of Therapies

NCT05885555
View directory record Official record
Conditions
Primary Immune Thrombocytopenia (ITP)
Interventions
Ianalumab
Biological
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 17, 2026, 6:18 AM EDT
Terminated Phase 3 Interventional Results available

A Study to Evaluate the Efficacy, Safety, and Tolerability of Rozanolixizumab in Adult Study Participants With Persistent or Chronic Primary Immune Thrombocytopenia (ITP)

NCT04200456
View directory record Official record
Conditions
Primary Immune Thrombocytopenia
Interventions
Rozanolixizumab, Placebo
Drug · Other
Lead sponsor
UCB Biopharma SRL
Industry
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced Sep 17, 2026, 6:18 AM EDT
Completed Phase 2 Interventional

Oral LGD-4665 Versus Placebo in Adults With Immune Thrombocytopenic Purpura (ITP) for 6 Weeks Plus Open Treatment Continuation

NCT00621894
View directory record Official record
Conditions
Immune Thrombocytopenic Purpura
Interventions
LGD-4665, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
15
States / cities
San Diego, California • San Francisco, California • Manchester, Connecticut + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 15, 2024 · Synced Sep 17, 2026, 6:18 AM EDT