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临床试验/NCT07345000
NCT07345000尚未招募3 期

A Randomized, Controlled, Multicenter, Double-blind Phase III Study Evaluating the Efficacy and Safety of Romiplostim N01 Combined With Standard Immunosuppressive Therapy (IST) Versus Placebo Combined With IST in Treatment-naïve Subjects With Severe Aplastic Anemia

Qilu Pharmaceutical Co., Ltd.0 个研究点目标入组 210 人开始时间: 2026年1月1日最近更新:

试验速览

阶段
3 期
状态
尚未招募
入组人数
210
主要终点
Complete Response (CR) rate at the 6-month time point of treatment.

研究概览

简要总结

This is a randomized, double-blind, multicenter trial designed to evaluate treatment with romiplostim N01+ IST compared with placebo + IST in the participants with treatment-naïve severe aplastic anemia.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Double (Participant, Investigator)

入排标准

年龄范围
15 Years 至 —(Child, Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Age ≥15 years, regardless of sex (subjects ≥18 years old will be enrolled first; enrollment of subjects aged 15-18 years will commence after sufficient PK/PD data are obtained).
  • Diagnosis of SAA or VSAA according to the British Journal of Haematology (BJH) guidelines. The diagnostic criteria for SAA are as follows:
  • ①Bone marrow cellularity <25% of normal; or between 25% and <50%, with residual hematopoietic cells comprising <30%.
  • ②Peripheral blood counts must meet at least two of the following three criteria (based on the lowest values from tests within 28 days prior to the first dose):
  • Absolute neutrophil count (ANC) <0.5×10⁹/L
  • Platelet count (PLT) <20×10⁹/L
  • Absolute reticulocyte count (RET) <60×10⁹/L The diagnostic criterion for VSAA is: meeting the SAA criteria + ANC <0.2×10⁹/L.
  • Written informed consent

排除标准

  • History and/or concomitant presence of other primary or secondary bone marrow failure (BMF) syndromes, such as:
  • ①Primary: Fanconi anemia, dyskeratosis congenita, congenital amegakaryocytic thrombocytopenia or Shwachman-Diamond syndrome, symptomatic paroxysmal nocturnal hemoglobinuria (PNH), myelodysplastic syndromes (MDS), clonal cytopenia of undetermined significance (CCUS), antibody-mediated BMF, idiopathic cytopenia of undetermined significance (ICUS), etc.
  • Secondary: large granular lymphocyte (LGL) leukemia, infiltration of the bone marrow by other systemic malignancies, myelofibrosis, and acute hematopoietic arrest, etc.
  • Note: Asymptomatic PNH and hepatitis-associated SAA may be included if they meet all other inclusion criteria.
  • Evidence of clonal cytogenetic abnormalities at screening.
  • Participation in another clinical trial with investigational drugs or medical devices within 30 days prior to the first dose or within 5 half-lives of the investigational product (whichever is longer).
  • Previous use of any of the following agents prior to the first dose:
  • Alemtuzumab
  • Mycophenolate mofetil ④Sirolimus
  • Tacrolimus ⑥High-dose cyclophosphamide (≥45 mg/kg/day)
  • Cumulative cyclosporine A (CsA) therapy exceeding 4 weeks prior to the first dose. If cumulative use is ≤4 weeks, a washout period of >14 days prior to the first dose is required.
  • Cumulative use of thrombopoietin receptor agonists (TPO-RAs) for >14 days prior to the first dose, or cumulative use ≤14 days with a washout period of <14 days, including:
  • Romiplostim / Nplate® (romiplostim)
  • Eltrombopag ③Hetrombopag ④Recombinant human thrombopoietin, etc.
  • Previous history of hematopoietic stem cell transplantation.
  • Uncontrolled bleeding and/or infection after standard treatment prior to the first dose [defined as persistent signs/symptoms related to infection without improvement despite appropriate antibiotic and/or other therapy], or requiring intravenous (IV) antibiotic administration.
  • Concomitant active CMV and EBV infection (positive test).

结局指标

主要结局

Complete Response (CR) rate at the 6-month time point of treatment.

时间窗: During 6 months of therapy

Proportion of subjects achieving hematopoietic complete response at the 6-month. Hematopoietic complete response is defined as: hemoglobin ≥10 g/dL, absolute neutrophil count ≥1×10⁹/L, and platelet count ≥100×10⁹/L.

次要结局

未报告次要终点

研究者

申办方类型
Industry
责任方
Sponsor

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