Thrombocytopenia Clinical Trial
Official title:
Eltrombopag Plus Diacerein vs Eltrombopag in Adult Primary Immune Thrombocytopenia: a Multicenter Randomized Controlled Trial
Primary immune thrombocytopenia (ITP) is an autoimmune bleeding disorder with low platelet count. As the first choice of the second-line treatment of ITP, thrombopoietin receptor agonist (TPO-RA) enable long-term remission in 50% to 60% of cases. However, about half of patients have no response or loss of response to eltrombopag due to unknown reasons, which can't be effectively improved by increasing the drug dose. Diacerein is an anthraquinone derivative used to treat joint diseases such as osteoarthritis. We speculate that the addition of diacerein to eltrombopag may offer sensitizer effect and maximize efficacy, which warrants further prospective studies to evaluate the efficacy and safety of the combination therapy as salvage strategy in ameliorating immune thrombocytopenia.
In this multicentre, open-label, randomized controlled trial, 98 eltrombopag-inefficient or relapsed ITP patients will be enrolled from five tertiary medical centres in China. Participants will be randomly assigned into the combination group (eltrombopag orally at initial dose of 75 mg daily for 14 days, plus diacerein orally at initial dose of 50 mg bid for 14 days) or the monotherapy group (eltrombopag orally at initial dose of 75 mg daily for 14 days) by masked statisticians in a 1:1 ratio. The primary endpoints are initial response at D15 without any additional ITP-specific intervention. The secondary outcomes include response at D28, time to response, duration of response, bleeding score, health-related quality of life assessment, and safety issue. This study will compare the efficacy and safety of eltrombopag-diacerein with eltrombopag monotherapy in adults with primary immune thrombocytopenia. We hypothesized that the novel combination of eltrombopag and diacerein might extend eltrombopag efficacy and avoid rapid alteration to less-preferable therapies, especially in the management of the patient refractory to eltrombopag. ;
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