A Study of TAK-079 in Adults With Persistent/Chronic Primary Immune Thrombocytopenia

Completed · Phase 2 · Has a placebo group

Conditions studied: Primary Immune Thrombocytopenia

In brief

Primary immune thrombocytopenia (ITP) is a rare disease that results in low levels of platelets - the cells that help blood clot. The main aim of the study is to check for side effects from taking TAK-079 at three different dose levels. Another aim is to learn if TAK-079 can increase the platelet count in people with ITP. In addition to receiving stable background therapy for ITP, participants will receive an injection of either TAK-079 or a placebo once a week for 2 months. A placebo looks like TAK-079 but will not have any medicine in it. After treatment, all participants will be followed-up for another 2 months. Then, participants who received TAK-079 will continue to be followed-up for an extra 4 months. Participants who received the placebo and would like to receive TAK-079 may be able to do this in an extension period in the study.

Key facts

Study ID: NCT04278924
Run by: Takeda
People needed: 41
Starts: 2020-11-09
Expected to finish: 2024-04-29
Last updated by the study team: 2025-06-15

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

Diagnosed with ITP that has persisted for ≥3 months, diagnosed in accordance to The American Society of Hematology 2011 Evidence-based Practice Guideline for Immune Thrombocytopenia or the International Consensus Report on The Investigation and Management of Primary Immune Thrombocytopenia as locally applicable.
Has a mean platelet count of <30,000/μL (and individually ≤35,000/μL) on at least 2 measurements at least 1 week apart during screening.
Diagnosis of ITP supported by a prior response to an ITP therapy (other than a thrombopoietin receptor agonists [TPO-RA]) that achieved a platelet count of ≥50,000/μL.
If receiving standard background treatment for ITP, treatment should be stable in dose and frequency for at least 4 weeks before dosing.
Permitted standard background treatments may include: 1 oral corticosteroid; ±1 immunosuppressant from the following list: azathioprine, danazol, dapsone, cyclosporine, mycophenolate mofetil, mycophenolate sodium; ±1 TPO-RA (romiplostim, eltrombopag, avatrombopag); ±fostamatinib. Corticosteroids, including dexamethasone, must be given as oral, daily or every-other-day therapy as opposed to pulse therapy.
The dose of any permitted standard background therapy must be expected to remain stable through the study, unless dose reduction is required because of toxicities.

You may not qualify if…

Use of anticoagulants or any drug with antiplatelet effect (such as aspirin) within 3 weeks before screening.
Has a history of any thrombotic or embolic event within 12 months before screening.
Has a history of splenectomy within 3 months before screening.
Use of intravenous immunoglobulin (IVIg), subcutaneous immunoglobulin or anti-D immunoglobulin treatment within 4 weeks of screening, or an expectation that any therapy besides the participant's standard background therapies may be used for treatment of thrombocytopenia (e.g., a rescue therapy) between screening and dosing.
Diagnosed with chronic obstructive pulmonary disease (COPD) or asthma, and a prebronchodilatory forced expiratory volume in 1 second (FEV1) <50% of predicted normal.
Use of rituximab or any monoclonal antibody (mAb) for immunomodulation within 4 months before first dosing. Note: Participants with prior exposure to rituximab must have cluster of differentiation (CD) 19 counts within the normal range at screening.
Use of immunosuppressants (such as cyclophosphamide, vincristine) other than permitted oral immunosuppressants within 6 months before first dosing.
Has been diagnosed with myelodysplastic syndrome.
Has received a live vaccine within 4 weeks before screening or has any live vaccine planned during the study.
10 Has had an opportunistic infection ≤12 weeks before initial study dosing or is currently undergoing treatment for a chronic opportunistic infection, such as tuberculosis (TB), pneumocystis pneumonia, cytomegalovirus, herpes simplex virus, herpes zoster, or atypical mycobacteria.

Where it is running

University of Florida — Gainesville, Florida, United States
Bleeding and Clotting Disorders Institute — Peoria, Illinois, United States
Massachusetts General Hospital — Boston, Massachusetts, United States
Boston Medical Center — Boston, Massachusetts, United States
Leo W. Jenkins Cancer Center — Greenville, North Carolina, United States
University of Virginia — Charlottesville, Virginia, United States
Acibadem City Clinic Multiprofile Hospital for Active Treatment Tokuda — Sofia, Sofia-Grad, Bulgaria
University Multiprofile Hospital for Active Treatment Sofiamed OOD — Sofia, Sofia-Grad, Bulgaria
University Multiprofile Hospital for Active Treatment - Dr. Georgi Stranski EAD — Pleven, Bulgaria
University Mulitiprofile Hospital for Active Treatment Sveti Georgi EAD — Plovdiv, Bulgaria
University Multiprofile Hospital for Active Treatment Sv Ivan Rilski EAD — Sofia, Bulgaria
Military Medical Academy Multiprofile Hospital for Active Treatment - Sofia — Sofia, Bulgaria
Union Hospital Tongji Medical College Huazhong University of Science and Technology — Wuhan, Hubei, China
Institute of Hematology and Blood Diseases Hospital Chinese Academy of Medical Sciences — Tianjin, Tianjin Municipality, China
Clinical Hospital Centre Osijek — Osijek, Croatia
Klinicki bolnicki centar Zagreb — Zagreb, Croatia
University Hospital Merkur — Zagreb, Croatia
Universitatsklinikum Frankfurt — Frankfurt am Main, Hesse, Germany
Onkologische Schwerpunktpraxis Kurfurstendamm — Berlin, Germany
OnkoNet Marburg GmbH — Marburg, Germany
Rotkreuzklinikum Munchen — München, Germany
University General Hospital of Patras — Pátrai, Achaia, Greece
General Hospital of Athens - George Gennimatas — Athens, Attica, Greece
Georgios Papanikolaou General Hospital of Thessaloniki — Thessaloniki, Greece
Arizona Clinical Research Center - Hunt - PPDS — Tucson, Arizona, United States

Full record on ClinicalTrials.gov

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