Safety of Oral Thrombopoietin Receptor Agonist in Pediatric Chronic ITP
Assessment of Response Rate and Safety of Oral Thrombopoietin Receptor Agonist in Pediatric Chronic ITP in Assiut.
Study Overview
Status
Status
Conditions
Conditions
Detailed Description
Immune thrombocytopenic purpura (ITP) is an autoimmune disease characterized by decrease number of the platelets due to destruction of the platelets by antiplatelet antibodies. Also, platelet production can be reduced because the antiplatelet antibodies can also damage megakaryocytes . Its prevalence being approximately 8 per 100,000 children It is characterized by temporary or persistent reduction of the platelet number to less than 100 × 109/liter.
All new cases at diagnosis are defined as acute ITP. While, Persistent ITP is defined as ITP lasting between 3 and 12 months from diagnosis while chronic ITP is defined as the presence of ITP for more than one-year ITP Patients have an increased hazard of bleeding that may have no effect on patient's life or have life-threatening danger the goal of treatment in chronic ITP is to increase and then keep platelets in a sufficient number to prevent bleeding
. Meanwhile most life-threatening bleeding occurs with platelet number less than 30 × 109/liter.
New guideline recommend that treatment constricted on symptomatic patients with number lower than 30 × 109/liter (3,6) new Guidelines recommended that corticosteroids as first-line therapy and splenectomy considered as one of several second-line therapies. Other choices exist for ITP patients with insufficient response or who do not undergo to splenectomy including IVIg, IV anti-D, Rituximab, danazol, azathioprine, Vinca alkaloids and cyclophosphamide New consensus statements and guidelines recommend thrombopoietin-receptor (TPO-R) agonists as second and third line of treatment Eltrombopag consider the first oral, nonpeptide TPO-R agonist accepted for the treatment of chronic ITP in patients with insufficient response to at least one other therapy It rises platelet number by increase platelet production by binding to the transmembrane domain of the TPO-R. It does not compete with endogenous TPO in vitro and it enhance production and differentiation of BM progenitor cells in the megakaryocytic lineage
Study Type
Study Type
Enrollment (Anticipated)
Enrollment
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Subjects between 2 year and <18 years of age in both sex
- Confirmed diagnosis of chronic ITP
- all patient received oral thrombopoietin receptor agonist (Eltrombopag) for 6 months or more
Exclusion Criteria:
- age of the patient < 2years and >18 years
- secondary thrombocytopenia
- Concurrent or past malignant disease, including myeloproliferative disorder
- patient with platelet agglutination abnormality that prevents reliable measurement of platelet counts
- patient with bone marrow aplasia
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
response to oral thrombopoietin receptor agonist
Time Frame: baseline
|
assess haematological response to oral thrombopoietin receptor agonist (Eltrombopag) therapy
|
baseline
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
General Publications
- Kuter DJ. The structure, function, and clinical use of the thrombopoietin receptor agonist avatrombopag. Blood Rev. 2022 May;53:100909. doi: 10.1016/j.blre.2021.100909. Epub 2021 Nov 16.
- Jurczak W, Chojnowski K, Mayer J, Krawczyk K, Jamieson BD, Tian W, Allen LF. Phase 3 randomised study of avatrombopag, a novel thrombopoietin receptor agonist for the treatment of chronic immune thrombocytopenia. Br J Haematol. 2018 Nov;183(3):479-490. doi: 10.1111/bjh.15573. Epub 2018 Sep 7.
Study record dates
Study Major Dates
Study Start (Anticipated)
Study Start
Primary Completion (Anticipated)
Primary Completion
Study Completion (Anticipated)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
Other Study ID Numbers
- thrombopoietin agonist
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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