Eltrombopag for Chemotherapy-induced Thrombocytopenia

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-12-31

Study Completion Date

2025-12-31

Brief Summary

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To evaluate the efficacy and safety of eltrombopag to treat chemotherapy-induced thrombocytopenia in solid tumors

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Detailed Description

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This is a single-arm study to evaluate the safety and efficacy of eltrombopag to treat chemotherapy-induced thrombocytopenia（CIT）. These subjects have been treated with recombinant human thrombopoietin（rhTPO） or interleukin 11（IL-11） before, the platelets can rise to normal or reach the effective standard, but after the re-application, the effective standard is not reached, or the effective standard is still not reached after the rhTPO 300U/kg/d treatment for 14 days. The investigator will assess the changes of the platelet counts after the treatment of eltrombopag from week 1 to week 24, and observe incidence of adverse events during the treatment of eltrombopag.The investigator will complete the 4 weeks safety visits（once a week），if the subjects end or withdraw from the clinical trial.

Patients with chemotherapy-induced thrombocytopenia who had the same inclusion and exclusion criteria in the same period or in the past will be compared with the efficacy and safety of supportive treatment in the same period or history, so as to preliminarily explore and evaluate the efficacy and safety of eltrombopag treatment.

Conditions

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Chemotherapy-induced Thrombocytopenia Eltrombopag

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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50 subjects with chemotherapy-induced thrombocytopenia

50 enrolled subjects will be picked up to take eltrombopag at the indicated dose.

Group Type EXPERIMENTAL

Eltrombopag

Intervention Type DRUG

The subjects will initiate treatment with 75 mg eltrombopag. Platelet counts is obtained weekly and dose adjustment should be done according to platelet counts, and maximum dose should not exceed 75 mg daily. Subjects whose platelet count ≤100×109/L，the eltrombopag dose will maintain. If platelet count \>100×109/L for 2 weeks, the subjects need to reduce the dose of eltrombopag to the next lower dose or lower frequency. If subjects whose platelet count exceeds 100×109/L for 4 weeks，already have reduced the dose of eltrombopag to 25mg once every other day during the treatment period, eltrombopag can be stopped for observation, until platelet counts fall below 100×109/L. If the subjects do not need further chemotherapy or radiotherapy, the subjects can taper off eltrombopag if the platelet is greater than 50×109/L.

Interventions

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Eltrombopag

The subjects will initiate treatment with 75 mg eltrombopag. Platelet counts is obtained weekly and dose adjustment should be done according to platelet counts, and maximum dose should not exceed 75 mg daily. Subjects whose platelet count ≤100×109/L，the eltrombopag dose will maintain. If platelet count \>100×109/L for 2 weeks, the subjects need to reduce the dose of eltrombopag to the next lower dose or lower frequency. If subjects whose platelet count exceeds 100×109/L for 4 weeks，already have reduced the dose of eltrombopag to 25mg once every other day during the treatment period, eltrombopag can be stopped for observation, until platelet counts fall below 100×109/L. If the subjects do not need further chemotherapy or radiotherapy, the subjects can taper off eltrombopag if the platelet is greater than 50×109/L.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Aged ≥18 years old, male or female;
* Conform to the diagnostic criteria of chemotherapy-induced thrombocytopenia (CIT); Ineffective after repeated treatment with rhTPO or IL-11；
* Stop radiotherapy or chemotherapy for more than 1 month;
* Platelet counts \<30 ×10\^9/L, and bleeding tendency;
* Estimated survival period ≥ 6 months；
* People who are willing to sign the informed consent voluntarily and follow the research program.
* Liver and kidney function\<1.5×upper limit of normal, qualified for physical examination；
* Subject is practicing an acceptable method of contraception. Women of childbearing potential must have a negative serum pregnancy test in the whole study;

Exclusion Criteria

* Those with uncontrollable primary diseases of important organs, such as extensive metastasis of malignant tumors, liver failure, heart failure, kidney failure and other diseases；
* Patients with poor compliance;
* Positive serology for HIV, hepatitis B virus (HBV), hepatitis C virus (HCV), and/or hepatitis D virus (HDV), Syphilis; Positive for Epstein-Barr Virus DNA, Cytomegalovirus DNA;
* Accompanied by extensive and severe bleeding, such as hemoptysis, upper gastrointestinal bleeding, intracranial hemorrhage, etc.
* There is currently a heart disease requiring treatment or a poorly controlled hypertension judged by the investigator；
* Patients with thrombotic diseases such as pulmonary embolism, thrombosis, and atherosclerosis；
* Those who have received allogeneic stem cell transplantation or organ transplantation in the past；
* Patients with mental disorders who cannot normally obtain informed consent and undergo trials and follow-up；
* Patients whose toxic symptoms caused by treatment before participating in the trial have not disappeared；
* Other serious diseases that may restrict participants from participating in this trial (such as diabetes; severe heart failure; myocardial obstruction or unstable arrhythmia or unstable angina in the past 6 months; gastric ulcers; mobility Autoimmune diseases, etc.)；
* Patients with sepsis or patients with other irregular bleeding；
* Patients taking antiplatelet drugs at the same time；
* Pregnant women, suspected pregnancy (a positive pregnancy test for human chorionic gonadotropin in urine at screening) and breastfeeding patients；
* Pre-existing cardiac disease, including congestive heart failure of New York Heart Association \[NYHA\] Grade III/IV, arrhythmia requiring treatment or myocardial infarction within the last 6 months. No arrhythmia known to increase the risk of thrombotic events (e.g. atrial fibrillation), or patients with a QT \>450msec or QTc \> 480 for patients with a Bundle Branch Block;
* Researchers believe that patients should not participate in the test of any other condition.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No