Roxadustat Combined With Luspatercept Versus Luspatercept Monotherapy in the Treatment of Refractory MDS-RS
Study Details
Study Description
Brief Summary
In a randomized controlled phase II/III clinical trial, 58% of patients with lower-risk MDS had at least a 50% reduction in red blood cell (RBC) transfusion units every 8 weeks after roxadustat treatment. In a randomized controlled phase III clinical trial, luspatercept significantly improved transfusion dependence in erythropoietin-stimulating agents (ESA)-refractory MDS-RS and improved hemoglobin response and quality of life, compared to placebo. This study aimed to evaluate the efficacy and safety of roxadustat combined with luspatercept versus luspatercept monotherapy in the treatment of refractory MDS-RS.
Condition or Disease | Intervention/Treatment | Phase |
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Phase 4 |
Detailed Description
Myelodysplastic neoplasms (MDS) are heterogeneous clonal disorders of stem cells that result in peripheral blood cytopenia and ineffective hematopoiesis, with the potential risk of the development of acute myeloid leukemia (AML). Most patients with myelodysplastic syndromes with ring sideroblasts (MDS-RS) are stratified into lower-risk groups by the revised International Prognostic Scoring System (IPSS). At present, the main therapies for MDS-RS are red blood cell and platelet transfusion, erythropoietin (EPO), androgen, and iron chelation therapy. Roxadustat can up-regulate transferrin receptors to increase iron absorption, up-regulate transferrin to promote iron transport, and down-regulate ferritin levels to indirectly improve iron absorption and transport, promote plasma iron entry into the bone marrow to generate red blood cells and promote the production of EPO in the physiological range. Luspatercept generally promotes advanced erythrocyte maturation by inhibiting the TGF-β/smad2/3 signaling pathway. In a randomized controlled phase II/III clinical trial, 58% of patients with lower-risk MDS had at least a 50% reduction in red blood cell (RBC) transfusion units every 8 weeks after roxadustat treatment. In a randomized controlled phase III clinical trial, luspatercept significantly improved transfusion dependence in erythropoietin-stimulating agents (ESA)-refractory MDS-RS and improved hemoglobin response and quality of life, compared to placebo. The aim of this study was to evaluate the efficacy and safety of roxadustat combined with luspatercept versus luspatercept monotherapy in the treatment of refractory MDS-RS. If it is proved that the combination of the two drugs is better than luspatercept monotherapy, it can quickly improve the anemia of refractory MDS-RS and improve the quality of life.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: roxadustat and luspatercept Luspatercept (1.0 mg/kg, subcutaneously injection every 3 weeks, adjusted according to blood pattern, up to 1.75mg/kg. Roxadustat (150mgqod) was administered for at least 6 months to evaluate efficacy. Hemoglobin ≥120g/L can be discontinued, and hemoglobin <120g/L can continue to use. Those who are effective will continue to be given the combination therapy until ineffective or intolerant. |
Drug: Roxadustat
Roxadustat (150 mgqod)
Drug: Luspatercept
Luspatercept (1.0 mg/kg, subcutaneously injection every 3 weeks, adjusted according to blood pattern, up to 1.75mg/kg)
|
Experimental: luspatercept Luspatercept (1.0 mg/kg, subcutaneously injection every 3 weeks, adjusted according to blood pattern, up to 1.75mg/kg. Luspatercept was given for at least 6 months to evaluate the efficacy. Hemoglobin ≥120g/L can be discontinued, and hemoglobin <120g/L can continue to use. Those who are effective will continue to be given the therapy until it is ineffective or intolerant |
Drug: Luspatercept
Luspatercept (1.0 mg/kg, subcutaneously injection every 3 weeks, adjusted according to blood pattern, up to 1.75mg/kg)
|
Outcome Measures
Primary Outcome Measures
- overall response rate (ORR) [6 month]
Proportion of patients who achieved complete response, partial response and hematological response.
Secondary Outcome Measures
- transfusion indenpendence (TI) [6 month]
Proportion of patients with transfusion dependence over 8 weeks
- adverse event rate [6 month]
Proportion of patients with adverse events
Eligibility Criteria
Criteria
Inclusion Criteria:
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Age >18 years old.
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Patients with a definite diagnosis of MDS-RS and stratified as lower-risk according to IPSS-R.
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After at least 6 weeks of rhEPO treatment, with hemoglobin<100g/L
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Adequate hepatic functions with alanine transaminase (ALT)/aspartate. transaminase (AST) levels within 2 times of the normal upper limit and total bilirubin levels within 2 times of the normal upper limit.
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ECOG≤2 with an expected life span of more than 6 months
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Documented patient consent.
Exclusion Criteria:
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Age <18 years old.
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Complicated with active or uncontrolled infections.
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Complicated with other malignancies.
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Creatinine/transaminase ≥ 2 normal upper limit.
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Complicated with myelofibrosis.
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Pregnant or lactating women, or men with recent fertility needs
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Allergic to luspatercept or excipients
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Patients with history of polysorbate 80 allergy
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Peking union medical college hospital | Beijing | China |
Sponsors and Collaborators
- Peking Union Medical College Hospital
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
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- Kubasch AS, Fenaux P, Platzbecker U. Development of luspatercept to treat ineffective erythropoiesis. Blood Adv. 2021 Mar 9;5(5):1565-1575. doi: 10.1182/bloodadvances.2020002177.
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- Suragani RN, Cadena SM, Cawley SM, Sako D, Mitchell D, Li R, Davies MV, Alexander MJ, Devine M, Loveday KS, Underwood KW, Grinberg AV, Quisel JD, Chopra R, Pearsall RS, Seehra J, Kumar R. Transforming growth factor-beta superfamily ligand trap ACE-536 corrects anemia by promoting late-stage erythropoiesis. Nat Med. 2014 Apr;20(4):408-14. doi: 10.1038/nm.3512. Epub 2014 Mar 23.
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