Eltrombopag Combining Rituximab Versus Eltrombopag in the Management of Primary Immune Thrombocytopenia (ITP) in Adults

  • STATUS
    Recruiting
  • End date
    Aug 10, 2022
  • participants needed
    224
  • sponsor
    Institute of Hematology & Blood Diseases Hospital
Updated on 25 January 2021

Summary

This multicenter randomized, open-label study aimed to compare the efficacy and safety of eltrombopag combining rituximab with eltrombopag in China adult ITP patients .This study was be conducted in adult ITP patients who had not responded to or had relapsed after previous treatment of ITP, including first line therapy and /or splenectomy.

Description

The primary objective of this study was to evaluate the efficacy and safety of eltrombopag combining rituximab treating previously treated ITP patients compared to eltrombopag. The secondary objective was to evaluate the efficacy of eltrombopag combining rituximab in ITP patients with positive autoantibody compared to eltrombopag .In addition, health-related quality of life (HRQoL) measure was assessed in all participants.

224 eligible subjects were randomized to either eltrombopag combining rituximab or eltrombopag treatment in 1:1 ratio. 112 enrolled patients are randomly picked up to take eltrombopag combining with rituximab at the indicated dose. 112 enrolled patients are randomly picked up to take eltrombopag at the indicated dose.

The initial dose of eltrombopag administration was an oral 75 mg once daily in all participants .The dose of eltrombopag was adjusted according to the subject platelet count during the period from week 1 to week 24.

Subjects in eltrombopag combining rituximab treatment group received single dose infusion of rituximab 375 mg/m(2) within 14 days after enrollment.

Details
Condition Primary Immune Thrombocytopenia
Treatment Eltrombopag, eltrombopag combining rituximab
Clinical Study IdentifierNCT04518475
SponsorInstitute of Hematology & Blood Diseases Hospital
Last Modified on25 January 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Signed written informed consent
Age from 18 to 60 years old
Diagnosed with ITP and have a platelet count of <30 10^9/L on Day 1 (or within 48 hours prior to dosing on Day 1)
Patients who have no response or relapsed after splenectomy(at least more than 6 months). Or patients who have not been splenectomised and have either not responded to one or more prior therapies, or who have relapsed prior therapy
Subjects treated with previous therapy(including but not limited to corticosteroid, azathioprine, danazol, cyclosporin A, mycophenolate mofetil) must have been completed prior to randomization, or must not be increasing a dose after enrollment
No pre-existing cardiac disease within the last 3 months. No arrhythmia known to increase the risk of thrombolic events (e.g. atrial fibrillation), or patients with a Corrected QT interval (QTc) >450msec or QTc >480 for patients with a Bundle Branch Block
No pre-existing infection within the last 1 months(including but not limited to pulmonary infection)
Laboratory tests for coagulation function showed that prothrombin time (PT/INR) and activated partial thromboplastin time (APTT) no exceed normal by more than 20%. No history of clotting disorder, other than ITP
White blood cell count, neutrophil absolute value, hemoglobin, within the reference range, with the following exceptions
Hemoglobin: females and males 10.0 g/dl are eligible for inclusion
Absolute neutrophil count (ANC) 1500/L (1.5109/L) is required for inclusion
The following blood chemistry test result no exceed normal by more than 20%:alanine aminotransferase, aspartate aminotransferase, total bilirubin, creatinine,serum albumin must not be below the lower limit of normal (LLN) by more than 10%
Subject is non-childbearing potential of childbearing potential and use acceptable methods of contraception throughout the study
Subjects fully understand and are able to comply with the requirements of the research protocol and are willing to complete the study as planned

Exclusion Criteria

Patients with any prior history of arterial or venous thrombosis, and with following risk factors: cancer, Factor V Leiden, ATIII deficiency, antiphospholipid syndrome
Pregnant or lactating women
Subjects is currently receiving treatment with another study medication
Any laboratory or clinical evidence for HIV infection
Any clinical history for hepatitis C infection; chronic hepatitis B infection; or any evidence for active hepatitis at the time of subject screening. Laboratory test shows positive serology for Hepatitis C or Hepatitis B (HB). In addition, if negative for HBsAg but HBcAb positive (regardless of HBsAb status), a HB DNA test will be performed and if positive the subject will be excluded
History of platelet aggregation that prevents reliable measurement of platelet counts
Any clinically relevant abnormality, other than ITP,which in the opinion of the investigator makes the subject unsuitable for participation in the study
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