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ClinicalTrials.gov public records Last synced Sep 30, 2026, 8:34 AM EDT

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Showing 1–24 of 140 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Thrombocytopenic Purpura Clear all
Active, not recruiting Phase 3 Interventional

A Study of TAK-755 in Participants With Congenital Thrombotic Thrombocytopenic Purpura

NCT04683003
View directory record Official record
Conditions
Thrombotic Thrombocytopenic Purpura (TTP)
Interventions
TAK-755
Biological
Lead sponsor
Takeda
Industry
Eligibility
0 Years to 70 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
5
States / cities
Atlanta, Georgia • Buffalo, New York • Durham, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 2 Interventional Results available

A Study to Assess the Ability of Eltrombopag to Induce Sustained Response Off Treatment in Subjects With ITP

NCT03524612
View directory record Official record
Conditions
Immune Thrombocytopenic Purpura (ITP)
Interventions
eltrombopag
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 99 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Nyack, New York • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced Sep 30, 2026, 8:34 AM EDT
Withdrawn Phase 1 Interventional

The Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of HMPL-523 in Adult Subjects With Immune Thrombocytopenia (ITP)

NCT06291415
View directory record Official record
Conditions
Immune Thrombocytopenia, Blood Platelet Disorder, Hematologic Diseases, Purpura, Thrombocytopenic, Purpura, Blood Coagulation Disorder, Thrombotic Microangiopathies, Hemorrhagic Disorders, Autoimmune Diseases, Immune System Diseases, Hemorrhage, Pathologic Processes, Skin Manifestations, Thrombocytopenia, Purpura, Thrombocytopenic, Idiopathic, Primary Immune Thrombocytopenia, ITP - Immune Thrombocytopenia
Interventions
HMPL-523
Drug
Lead sponsor
Hutchmed
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
10
States / cities
Irvine, California • Georgetown, Delaware • Bethesda, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Sep 30, 2026, 8:34 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 Sep 30, 2026, 8:34 AM EDT
Recruiting Phase 3 Interventional

A Follow-up Study of Mezagitamab in Adults With Chronic Primary Immune Thrombocytopenia

NCT06948318
View directory record Official record
Conditions
Immune Thrombocytopenic Purpura (ITP)
Interventions
Mezagitamab
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
25
States / cities
Hot Springs, Arkansas • Los Angeles, California • San Diego, California + 21 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 30, 2026, 8:34 AM EDT
Recruiting Phase 2 Interventional

Safety, Tolerability, and Efficacy of NVG-2089 in Participants With Immune Thrombocytopenia

NCT07095127
View directory record Official record
Conditions
Immune Thrombocytopenia (ITP)
Interventions
NVG-2089
Drug
Lead sponsor
Nuvig Therapeutics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Boston, Massachusetts • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 30, 2026, 8:34 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 Sep 30, 2026, 8:34 AM EDT
Recruiting No phase listed Observational

Cognitive Dysfunction in Chronic and Persistent Immune Thrombocytopenia

NCT06817395
View directory record Official record
Conditions
Immune Thrombocytopenia
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 10, 2025 · Synced Sep 30, 2026, 8:34 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 Sep 30, 2026, 8:34 AM EDT
Recruiting Phase 1 Interventional

Phase 1b Trial of RAY121 in Immunological Diseases (RAINBOW Trial)

NCT06371417
View directory record Official record
Conditions
Antiphospholipid Syndrome (APS), Bullous Pemphigoid (BP), Behçet's Syndrome (BS), Dermatomyositis (DM), Immune-mediated Necrotizing Myopathy (IMNM), Immune Thrombocytopenia (ITP)
Interventions
RAY121
Drug
Lead sponsor
Chugai Pharmaceutical
Industry
Eligibility
18 Years to 85 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
11
States / cities
Orange, California • Baltimore, Maryland • Lake Success, New York + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 30, 2026, 8:34 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

A First in HumanTrial to Evaluate The Safety, Tolerability, And Pharmacokinetics Of PF-06755347

NCT03275740
View directory record Official record
Conditions
Healthy, Primary Immune Thrombocytopenia, Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Interventions
PF-06755347 intravenous healthy participant, Placebo intravenous healthy participant, PF-06755347 subcutaneous healthy participant, Placebo subcutaneous healthy participant, PF-06755347 subcutaneous ITP
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 5, 2024 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 2 Interventional

A Study of TAK-755 (rADAMTS13) With Little to No Plasma Exchange (PEX) Treatment in Adults With Immune-mediated Thrombotic Thrombocytopenic Purpura (iTTP)

NCT05714969
View directory record Official record
Conditions
Thrombotic Thrombocytopenic Purpura (TTP)
Interventions
TAK-755
Biological
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
12
States / cities
Gainesville, Florida • Boston, Massachusetts • Minneapolis, Minnesota + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Sep 30, 2026, 8:34 AM EDT
Recruiting No phase listed Observational

A Study of Patients' Preferences for Primary Immune Thrombocytopenia Treatment

NCT07786077
View directory record Official record
Conditions
Primary Immune Thrombocytopenia
Interventions
Not listed
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 30, 2026, 8:34 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

A Phase 1b/2a Study of Velinotamig in Adults With Relapsed/Refractory ITP and wAIHA

NCT07738822
View directory record Official record
Conditions
Immune Thrombocytopenia (ITP), Warm Autoimmune Hemolytic Anemia (WAIHA)
Interventions
Velinotamig specified dose on specified days.
Drug
Lead sponsor
Cullinan Therapeutics Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Webster, Texas
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Study to Evaluate Safety and Efficacy in Adult Subjects With ITP

NCT02273960
View directory record Official record
Conditions
Immune Thrombocytopenic Purpura
Interventions
BMS-986004 75 mg IV, BMS-986004 225 mg IV, BMS-986004 675 mg IV, BMS-986004 1500 mg IV
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
6
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2019 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 2 Interventional Results available

Low Dose Rituximab in Thrombotic Thrombocytopenic Purpura

NCT01554514
View directory record Official record
Conditions
Thrombotic Thrombocytopenic Purpura
Interventions
rituximab
Biological
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
4
States / cities
Atlanta, Georgia • Boston, Massachusetts • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 17, 2021 · Synced Sep 30, 2026, 8:34 AM EDT
Terminated Phase 2 Interventional Results available

Using Fostamatinib to Treat Post-Hematopoietic Stem Cell Transplant Immune-mediated Cytopenias

NCT05502783
View directory record Official record
Conditions
Immune Mediated Anemia, Immune Mediated Thrombocytopenia, Chronic GVHD
Interventions
fostamatinib
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 75 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 3 Interventional Results available

RAISE: Randomized Placebo-Controlled Idiopathic Thrombocytopenic Purpura (ITP) Study With Eltrombopag

NCT00370331
View directory record Official record
Conditions
Purpura, Thrombocytopaenic, Idiopathic
Interventions
eltrombopag, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
26
States / cities
Duarte, California • Los Angeles, California • San Francisco, California + 20 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 3 Interventional Results available

Study of Cyclosporine or Corticosteroids as an Adjunct to Plasma Exchange in Thrombotic Thrombocytopenic Purpura (TTP)

NCT00713193
View directory record Official record
Conditions
Thrombotic Thrombocytopenic Purpura
Interventions
Cyclosporine, Prednisone
Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 3, 2023 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 3 Interventional Results available

Phase III Trial With Caplacizumab in Patients With Acquired Thrombotic Thrombocytopenic Purpura

NCT02553317
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
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
19
States / cities
Birmingham, Alabama • Los Angeles, California • Atlanta, Georgia + 15 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 2 Interventional Results available

Study of AKR-501 Tablets Taken Orally Once Daily for 28 Days in Patients With Chronic Idiopathic Thrombocytopenic Purpura (ITP)

NCT00441090
View directory record Official record
Conditions
Chronic Idiopathic Thrombocytopenic Purpura, Purpura, Thrombocytopenic, Idiopathic
Interventions
Placebo, Avatrombopag tablets
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
25
States / cities
Anaheim, California • Bakersfield, California • Concord, California + 21 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2018 · Synced Sep 30, 2026, 8:34 AM EDT
Withdrawn Not applicable Interventional

Single Incision Versus Standard Laparoscopic Splenectomy

NCT01276561
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 3, 2017 · Synced Sep 30, 2026, 8:34 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Eltrombopag Taste Testing in Healthy Adult Volunteers

NCT00487968
View directory record Official record
Conditions
Healthy Subjects, Purpura, Thrombocytopenic, Idiopathic
Interventions
eltrombopag
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 19, 2012 · Synced Sep 30, 2026, 8:34 AM EDT
Terminated Phase 3 Interventional Results available

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

NCT04224688
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
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
St. Petersburg, Florida • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 8, 2023 · Synced Sep 30, 2026, 8:34 AM EDT