A Phase ⅢB Clinical Trial Evaluating the Long-term Effects of Gecacitinib Treatment on Myelofibrosis and Gene Mutation Levels in Patients Previously Enrolled in Clinical Trails of Gecacitinib for the Treatment of Myelofibrosis
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 发起方
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- Proportion of patients with worsening/stable/improving myelofibrosis grade after treatment
研究概览
简要总结
This study was an observational study, and about 40 patients with intermediate and high risk myelofibrosis who had participated in any previous clinical study of Gecacitinib hydrochloride and were still receiving Gecacitinib treatment in our center were expected to be enrolled. There was no additional drug intervention, only the myelofibrosis grade and gene mutation level of the patients were collected. Subjects who met all inclusion criteria and none of the exclusion criteria were eligible for inclusion in this study. After informed consent was obtained and screening was successful, bone marrow aspiration, bone marrow biopsy, and gene mutation testing were performed once. If bone marrow was extracted, peripheral blood could be used for gene mutation testing, and then annually until the permanent discontinuation of Gecacitinib.
详细描述
Previous clinical trials of Gecacitinib hydrochloride tablets in the treatment of myelofibrosis initiated by our center include: 1) ZGJAK002 trial (NCT03886415) : A multicenter phase Ⅱ clinical trial of the safety and efficacy of 100mg BID and 200mg QD of Gecacitinib in the treatment of intermediate and high risk myelofibrosis (n=118). 2) ZGJAK006 study (NCT04217993) : a phase ⅡB clinical trial of the safety and efficacy of gefitinib in Ruxolitinib intolerant myelofibrosis patients (n=51); 3) ZGJAK017 study (NCT04851535) : a phase Ⅱ trial (n=34) to evaluate the efficacy and safety of Gecacitinib in Ruxolitinib refractory or relapsed myelofibrosis patients; 4) ZGJAK016 trial (NCT04617028) : a randomized, double-blind, double-dummy, parallel-controlled, multicenter phase III trial (n=105). At present, the follow-up of the project has ended and the Gecacitinib donation phase has begun.
This study was an observational study, and about 40 patients with intermediate and high risk myelofibrosis who had participated in any previous clinical study of Gecacitinib hydrochloride and were still receiving Gecacitinib treatment in our center were expected to be enrolled. There was no additional drug intervention, only the myelofibrosis grade and gene mutation level of the patients were collected. Subjects who met all inclusion criteria and none of the exclusion criteria were eligible for inclusion in this study. After informed consent was obtained and screening was successful, bone marrow aspiration, bone marrow biopsy, and gene mutation testing were performed once. If bone marrow was extracted, peripheral blood could be used for gene mutation testing, and then annually until the permanent discontinuation of Gecacitinib.
The primary objective was to evaluate the myelofibrosis grade in patients with MF who had previously participated in a clinical study of Gecacitinib and were still receiving gefitinib. The secondary objective was to evaluate the change from baseline in JAK2 isomutations.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Retrospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •They had been enrolled in previous clinical trials of gefitinib for myelofibrosis (ZGJAK002, ZGJAK006, ZGJAK016 and ZGJAK017) and were still receiving gefitinib treatment.
- •Comply with the requirements of the ethics committee, voluntarily sign the informed consent.
- •Able to adhere to study and follow-up procedures.
排除标准
- •Patients with other serious diseases that the researcher believes may affect patient compliance and outcome observation.
结局指标
主要结局
Proportion of patients with worsening/stable/improving myelofibrosis grade after treatment
时间窗: Successfully enrolled patients will undergo bone marrow biopsy as indicated by follow-up, and then once per 1 year until Gecacitinib is permanently discontinued or assessed up to 5 years, whichever came first.
Sample collection: Bone marrow biopsy tissue was at least 1.5 cm in length to ensure accuracy of bone marrow analysis. The bone marrow fibers were graded by silver staining to ensure the objectivity and reproducibility of the grading results
次要结局
- The changes of JAK2 V617F, CALR and MPL W515L/K gene mutations after treatment were compared with those before treatment(Successfully enrolled patients will undergo genetic testing as indicated by follow-up, and then once per 1 year until Gecacitinib is permanently discontinued or assessed up to 5 years, whichever came first.)