ChiCTR2400089201 版本V1.0 版本创建时间2024/09/03 17:08:15 中国临床试验注册中心

审核状态:

Project audit state:

通过审核

Successful

注册号:

Registration number:

ChiCTR2400089201 

最近更新日期:

Date of Last Refreshed on:

2024-09-03 17:06:15 

注册时间:

Date of Registration:

2024-09-03 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

比较Bomedemstat与BAT用于羟基脲缓解不佳或不耐受ET

Public title:

Bomedemstat vs BAT for Essential Thrombocythemia

注册题目简写:

English Acronym:

研究课题的正式科学名称:

一项在羟基脲缓解不佳或不耐受的原发性血小板增多症受试者中评价Bomedemstat(MK-3543/IMG-7289)与最佳可用治疗(BAT)相比的安全性和有效性的Ⅲ期、随机、开放性、活性药物对照临床研究。

Scientific title:

A Phase 3, Randomized, Open-label, Active-Comparator-Controlled Clinical Study to Evaluate the Safety and Efficacy of Bomedemstat (MK-3543/IMG-7289) versus Best Available Therapy (BAT) in Participants With Essential Thrombocythemia who have an Inadequate Response to or are Intolerant of Hydroxyurea.

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

胡豫 

研究负责人:

胡豫 

Applicant:

Hu Yu 

Study leader:

Hu Yu 

申请注册联系人电话:

Applicant telephone:

+86 13986183871

研究负责人电话:

Study leader's telephone:

+86 27 8572 6008

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

Dr_huyu@126.com

研究负责人电子邮件:

Study leader's E-mail:

dr_huyu@126.com

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

湖北省-武汉市-武汉市解放大道1277号

研究负责人通讯地址:

湖北省武汉市江汉区解放大道1277号

Applicant address:

Hubei Province-Wuhan City-No. 1277 Jiefang Avenue

Study leader's address:

NO.1277 Jiefang Avenue, Wuhan, Hubei Province

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

华中科技大学同济医学院附属协和医院

Applicant's institution:

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

研究负责人所在单位:

华中科技大学同济医学院附属协和医院

Affiliation of the Leader:

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

是否获伦理委员会批准:

是/Yes

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

[2024]伦审字(0016)号

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

华中科技大学同济医学院附属协和医院医学伦理委员会

Name of the ethic committee:

Ethics Committee of Union Hospital of Tongji Medical College Huazhong University of Science and Technology

伦理委员会批准日期:

Date of approved by ethic committee:

2024-02-06 00:00:00

伦理委员会联系人:

褚圆圆

Contact Name of the ethic committee:

Chu Yuanyuan

伦理委员会联系地址:

湖北省武汉市江汉区解放大道1277号

Contact Address of the ethic committee:

NO.1277 Jiefang Avenue, Wuhan, Hubei Province

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 27 85726375

伦理委员会联系人邮箱:

Contact email of the ethic committee:

994877373@qq.com

研究实施负责(组长)单位:

华中科技大学同济医学院附属协和医院

Primary sponsor:

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

研究实施负责(组长)单位地址:

湖北省武汉市江汉区解放大道1277号

Primary sponsor's address:

NO.1277 Jiefang Avenue, Wuhan, Hubei Province

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

湖北

市(区县):

Country:

China

Province:

Hubei

City:

单位(医院):

华中科技大学同济医学院附属协和医院

具体地址:

湖北省武汉市江汉区解放大道1277号

Institution
hospital:

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Address:

NO.1277 Jiefang Avenue, Wuhan, Hubei Province

经费或物资来源:

默沙东研发(中国)有限公司

Source(s) of funding:

Merck Sharp & Dohme LLC

Target disease:

Essential thrombocythaemia

Target disease code:

研究类型:

干预性研究

Study type:

Interventional study

研究所处阶段:

III期临床试验 

Study phase:

3

研究设计:

随机平行对照 

Study design:

Parallel 

研究目的:

主要目的:比较bomedemstat与最佳可用治疗在DCHR方面的差异。 次要目的:比较bomedemstat与最佳可用治疗在疲劳评分(根据MFSAF v4.0)变化方面的差异。比较bomedemstat与最佳可用治疗在总疲劳评分(根据PROMIS疲劳SF-7a)变化方面的差异。比较bomedemstat与最佳可用治疗在总症状评分(根据MFSAF v4.0)变化方面的差异。评价两个治疗组的DOCHR。评价两个治疗组的DOHR。评价两个治疗组血栓形成事件的发生率。评价两个治疗组大出血事件的发生率。评价两个治疗组疾病进展的发生率。评价两个治疗组的EFS。评价bomedemstat的安全性和耐受性。  

Objectives of Study:

Primary Objective: To compare bomedemstat to best available therapy with respect to DCHR. Secondary Objective: To compare bomedemstat to best available therapy with respect to change in fatigue score based on MFSAF v4.0. To compare bomedemstat to best available therapy with respect to change in total fatigue score based on PROMIS Fatigue SF-7a. To compare bomedemstat to best available therapy with respect to change in total symptom score based on MFSAF v4.0. To evaluate DOCHR for both treatment arms. To evaluate DOHR for both treatment arms. To evaluate the incidence of thrombotic events for both treatment arms. To evaluate the incidence of major hemorrhagic events for both treatment arms. To evaluate the incidence of disease progression for both treatment arms. To evaluate EFS for both treatment arms. To evaluate the safety and tolerability of bomedemstat.

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

1. 根据WHO 2016年骨髓增殖性肿瘤诊断标准诊断为ET;
2. 根据修订版欧洲骨髓纤维化分级共识标准(附录 11),骨髓纤维化等级评分为0或1;
3. 基于羟基脲耐药或不耐受的改良ELN标准,根据以下至少1项标准,有羟基脲缓解不佳或不耐受史[Barosi, G., et al 2007] ? 对羟基脲耐药(或缓解不佳): - 至少2 g/天或羟基脲最大耐受剂量治疗3个月后,血小板计数>600 × 10^9/L,或 - 接受任何剂量和持续时间的羟基脲治疗,血小板计数>400 × 10^9/L且WBC<2.5 × 10^9/L,或 - 接受任何剂量和持续时间的羟基脲治疗,血小板计数>500 × 10^9/L且Hb<10 g/dL,或 - 如果不符合上述标准,接受任何剂量的羟基脲治疗至少3个月后,血小板计数>450 × 10^9/L ? 对羟基脲不耐受: - 在达到血液学缓解(定义为血小板计数≤400 × 10^9/L且WBC<10 × 10^9/L)所需羟基脲的最低剂量下,ANC<1 × 10^9/L,或血小板计数<150 × 10^9/L,或Hb<10 g/dL - 在达到CHR所需的羟基脲剂量下,出现不可接受的羟基脲相关非血液学毒性(例如肺毒性,如非感染性肺炎、纤维化和过敏性肺泡炎;肝脏毒性;溶血性贫血;血管炎毒性;皮肤粘膜表现;癌前或癌性皮肤病变;胃肠道症状;或发热)定义为: · 羟基脲再激发后复发的毒性 · 需要永久停用羟基脲的毒性· 持续>1周的4级(CTCAE v5.0)毒性 · 持续>2周的3级(CTCAE v5.0)毒性;
4. 经以下任一项证实,对最近的既往ET治疗缓解不佳或缓解丧失,需要改变降细胞治疗[National Comprehensive Cancer Network 2022]: ? 对羟基脲、干扰素α制剂或阿那格雷不耐受或缓解不佳 ? 新发血栓形成或疾病相关大出血(如获得性VWD) ? 进行性血小板增多(血小板计数>600 × 10^9/L) ? 进行性白细胞增多(WBC>11 × 10^9/L) ? 不受控制的疾病相关症状(出于研究目的,定义为MFSAF v4.0的单一症状评分≥4) ? 对阿司匹林无反应的血管舒缩/微血管障碍(如头痛、胸痛或红斑性肢痛症);
5. 在研究干预首次给药前72小时内评估的血小板计数>450 × 10^9/L(450 k/μL);
6. 在研究干预首次给药前72小时内评估的ANC≥0.75 × 10^9/L;
7. 预期寿命>52周;
8. 受试者既往接受过包括羟基脲在内的至多3线前线治疗;
9. 提供知情同意时年龄至少为18岁的任何性别个体。
10. 如果能够产生精子,受试者同意在干预期间和至少在末次研究干预后消除每种研究干预所需的时间内遵守以下要求。每种研究干预所需的持续避孕周期: - 白消安:6个月 - Bomedemstat:30天 - 干扰素α/聚乙二醇干扰素α:30天 - 阿那格雷:30天 - 芦可替尼:30天 ? 避免捐精 外加以下任意一项: ? 在首选和日常生活方式中避免阴茎-阴道性交(长期持续禁欲),并同意保持禁欲 或者 ? 采取如下所述的避孕措施,除非确认为无精子(输精管切除或继发于医学原因,通过研究中心工作人员审查受试者病历、医学检查或病史访谈所做的记录)详情如下: - 当与目前未妊娠的有生育能力的非受试者进行阴茎-阴道性交时,使用阴茎/外部避孕套,同时伴侣使用额外的避孕方法,因为避孕套可能破裂或泄漏。注:其伴侣处于妊娠期或哺乳期且本身能够射精的受试者必须同意在伴侣具有通过射精的药物暴露风险的每次性活动期间使用阴茎/外部避孕套。 - 能够产生精子的受试者使用的避孕方法应符合当地关于参加临床研究的受试者的避孕方法规定。如果任何研究干预药物的当地说明书中的避孕要求比上述要求更严格,则应遵循当地说明书要求。
11. 出生时记录为女性的受试者,如果未处于妊娠期或哺乳期,并且至少符合以下条件之一的,有资格参加研究: - 不是POCBP 或者 - 是POCBP,并且: - 如附录 5所述,在干预期间及研究干预末次给药后消除每种研究干预所需的最短时间内采用高效的(年失败率<1%)且使用者依赖程度低的避孕方法,或者在首选和日常生活方式中避免阴茎-阴道性交(长期持续禁欲)。受试者同意在此期间不将卵子(卵细胞、卵母细胞)捐献给他人或冷冻/储存卵子用于生殖目的。每个研究干预所需的持续避孕周期: ? 白消安:6个月 ? Bomedemstat:30天 ? 干扰素α/聚乙二醇干扰素α:30天 ? 阿那格雷:30天 ? 芦可替尼:30天 - 研究者应评价与研究干预首次给药相关的避孕方法失败(即不依从、最近开始使用)的可能性。POCBP使用的避孕方法应符合当地关于参加临床研究的受试者的避孕方法规定。如果任何研究干预药物的当地说明书中的避孕要求比上述要求更严格,则应遵循当地说明书要求。- 在研究干预首次给药前24小时(尿液妊娠试验)或72小时(血清试验)内,根据当地法规要求进行的高灵敏度妊娠试验(尿液或血清)的结果为阴性。如不能确定尿液试验结果为阴性(例如,结果不明确),则需进行血清妊娠试验。在这种情况下,如果血清妊娠结果呈阳性,则必须将受试者从研究中排除。研究干预期间和之后进行妊娠试验的其他要求请参见章节8.3.5。 - 研究干预期间和研究干预后的至少以下持续时间内禁止哺乳。 - 白消安:6个月 - Bomedemstat:30天 - 干扰素α/聚乙二醇干扰素α:30天 - 阿那格雷:30天 - 芦可替尼:30天 - 研究者已审查病史、月经史和近期性行为,以降低纳入未检出早期妊娠POCBP的风险。
12. 受试者(或法定代理人)已提供研究知情同意书。受试者还可提供其对FBR的同意书。但受试者可以仅参与本研究而不参与FBR。
13. 能够吞咽胶囊;
14. 根据当地和/或临床试验机构指导原则或产品说明书,研究者认为受试者有资格接受至少一种方案定义的BAT治疗。
15. 研究干预开始前7天内评估的ECOG体能状态为0或1。
16. 符合下表(表3)所定义的充分的器官功能。样本必须在研究干预开始前3天内采集。系统 实验室检查值 血液学 血红蛋白(或红细胞压积) 10-16 g/dL(且红细胞压积<45%)a 肾脏 测量或计算的肌酐清除率b ≥30 mL/min 肝脏 总胆红素 ≤1.5 × ULN,或对于总胆红素水平>1.5 × ULN的受试者,直接胆红素≤ ULN AST (SGOT)和ALT (SGPT) ≤2.5 × ULN 凝血 国际标准化比例(INR)或凝血酶原时间(PT) 活化部分凝血活酶时间(aPTT) ≤1.5 × ULN,若受试者正在接受抗凝治疗,则PT或aPTT应在抗凝剂预期用途的治疗范围内;
17. HbsAg阳性的受试者如果接受了至少4周的HBV抗病毒治疗,且在随机分组之前检测不到HBV病毒载量,则有资格参加研究。 注:在研究干预期间,受试者应继续接受抗病毒治疗,并在研究干预完成后遵循当地的HBV抗病毒治疗指导原则。 不需要进行乙型肝炎筛查检测,除非: ? -已知有HBV感染史 ? -根据当地卫生部门要求;
18. 如果在筛选时未检测到HCV病毒载量,则有HCV感染史的受试者有资格参加研究。 注:受试者必须在随机分组前至少4周完成根治性抗病毒治疗。 不需要进行丙型肝炎筛查检测,除非: ? - 已知有HCV感染史 ? - 根据当地卫生部门要求;
19. HIV感染受试者必须在ART后HIV得到良好控制,定义为: a. 接受ART的受试者在筛选时CD4+ T细胞计数必须≥350个细胞/mm3。 b. 接受ART的受试者必须在筛选时和筛选前至少12周内使用当地可用的测定法检查其已达到并维持病毒学抑制,定义为确认的HIV RNA水平低于50或LLOQ(低于检测限)。 c. 建议受试者在过去12个月内不得发生任何艾滋病定义的机会性感染。d. 接受ART的受试者必须在进入研究前(第1天)接受稳定的治疗方案至少4周,不改变药物或剂量调整,并同意在整个研究期间继续ART。 e. 联合ART治疗方案不得含有任何与CYP3A4抑制剂/诱导剂/底物(https://www.fda.gov/drugs/drug-interactions-labeling/drug-development-and-drug-interactions-table-substrates-inhibitors-and-inducers)相互作用的抗逆转录病毒药物。

Inclusion criteria

1. Has a diagnosis of ET per WHO 2016 diagnostic criteria for myeloproliferative neoplasms (Appendix 9).
2. Has a bone marrow fibrosis score of Grade 0 or Grade 1, as per a modified version of the European Consensus Criteria for Grading Myelofibrosis (Appendix 11);
3. Has a history of inadequate response to or intolerance of hydroxyurea per at least 1 of the following criteria, based on modified ELN criteria for hydroxyurea resistance or intolerance [Barosi, G., et al 2007] ? Hydroxyurea Resistance (or Inadequate Response): - Platelet count >600 × 10^9/L after 3 months of at least 2 g/day or MTD of hydroxyurea, or - Platelet count >400 × 10^9/L and WBC <2.5 ×10^9/L at any dose and duration of hydroxyurea, or - Platelet count >500 × 10^9/L and Hb < 10 g/dL at any dose and duration of hydroxyurea, or - Platelet count >450 × 10^9/L after at least 3 months at any dose of hydroxyurea if the above criteria are not met. ? Hydroxyurea Intolerance: - ANC <1 × 10^9/L, or platelet count <150 × 10^9/L, or Hb <10 g/dL at the lowest dose of hydroxyurea to achieve a hematologic remission, defined as platelet count ≤400 × 10^9/L and WBC <10 × 10^9/L - Unacceptable hydroxyurea-related non-hematologic toxicities (eg, pulmonary toxicities such as pneumonitis, fibrosis and allergic alveolitis; hepatotoxicity; hemolytic anemia; vasculitic toxicities; mucocutaneous manifestations; precancerous or cancerous skin lesions; gastrointestinal symptoms; or fever) at a dose of hydroxyurea needed to achieve CHR defined as: ? Toxicity that recurred after rechallenge with hydroxyurea ? Toxicity requiring permanent discontinuation of hydroxyurea ? Toxicity with intensity of Grade 4 (CTCAE v5.0) lasting >1 week ? Toxicity with intensity of Grade 3 (CTCAE v5.0) lasting >2 weeks;
4. Has an inadequate or loss of response to their most recent prior ET therapy, requiring a change of cytoreductive therapy, as demonstrated by one of the following [National Comprehensive Cancer Network 2022]: ? Intolerance or inadequate response to hydroxyurea, formulations of interferon alfa, or anagrelide ? New thrombosis or disease-related major bleeding (eg, acquired Von Willebrand’s disorder) ? Progressive thrombocytosis (platelet count >600 × 10^9/L) ? Progressive leukocytosis (WBC >11 × 10^9/L) ? Uncontrolled disease-related symptoms (for study purposes this has been defined as a single symptom score of MFSAF v4.0 ≥4) ? Vasomotor/microvascular disturbances not responsive to aspirin (eg, headaches, chest pain or erythromelalgia);
5. Has a platelet count > 450 × 10^9/L (450k /μL) assessed up to 72 hours before first dose of study intervention;
6. Has an ANC ≥0.75 × 10^9/L assessed up to 72 hours before first dose of study intervention;
7. Has a life expectancy of >52 weeks;
8. Participants may have received up to 3 prior lines of therapy including hydroxyurea;
9. Is an individual of any sex/gender, at least 18 years of age, at the time of providing the informed consent.
10. If capable of producing sperm, the participant agrees to the following during the intervention period and for at least the time needed to eliminate each study intervention after the last dose of study intervention. The length of time required to continue contraception for each study intervention is: - Busulfan: 6 months - Bomedemstat: 30 days - Interferon alfa/pegylated interferon alfa: 30 days - Anagrelide: 30 days - Ruxolitinib: 30 days ? Refrains from donating sperm PLUS either: ? Abstains from penile-vaginal intercourse as their preferred and usual lifestyle (abstinent on a long-term and persistent basis) and agrees to remain abstinent OR ? Uses contraception as detailed below unless confirmed to be azoospermic (vasectomized or secondary to medical cause, documented from the site personnel’s review of the participant’s medical records, medical examination, or medical history interview) as detailed below: - Uses a penile/external condom when having penile-vaginal intercourse with a nonparticipant of childbearing potential who is not currently pregnant PLUS partner use of an additional contraceptive method, as a condom may break or leak. Note: Participants capable of producing ejaculate whose partner is pregnant or breastfeeding must agree to use a penile/external condom during each episode of sexual activity in which the partner is at risk of drug exposure via ejaculate. - Contraceptive use by participants capable of producing sperm should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. If the contraception requirements in the local label for any of the study interventions are more stringent than the requirements above, the local label requirements are to be followed.
11. A participant assigned female sex at birth is eligible to participate if not pregnant or breastfeeding, and at least one of the following conditions applies: ? Is not a POCBP OR ? Is a POCBP and: - Uses a contraceptive method that is highly effective (with a failure rate of <1% per year), with low user dependency, or is abstinent from penile-vaginal intercourse as their preferred and usual lifestyle (abstinent on a long-term and persistent basis), as described in Appendix 5 during the intervention period and for at least the time needed to eliminate each study intervention after the last dose of study intervention. The participant agrees not to donate eggs (ova, oocytes) to others or freeze/store eggs during this period for the purpose of reproduction. The length of time required to continue contraception for each study intervention is: ? Busulfan: 6 months ? Bomedemstat: 30 days ? Interferon alfa/pegylated interferon alfa: 30 days ? Anagrelide: 30 days ? Ruxolitinib: 30 days - The investigator should evaluate the potential for contraceptive method failure (ie, noncompliance, recently initiated) in relationship to the first dose of study intervention. Contraceptive use by POCBPs should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. If the contraception requirements in the local label for any of the study interventions are more stringent than the requirements above, the local label requirements are to be followed. - Has a negative highly sensitive pregnancy test (urine or serum) as required by local regulations within 24 hours (for a urine test) or 72 hours (for a serum test) before the first dose of study intervention. If a urine test cannot be confirmed as negative (eg, an ambiguous result), a serum pregnancy test is required. In such cases, the participant must be excluded from participation if the serum pregnancy result is positive. Additional requirements for pregnancy testing during and after study intervention are in Section 8.3.5. - Abstains from breastfeeding during the study intervention period and for at least the following number of days after study intervention. - Busulfan: 6 months - Bomedemstat: 30 days - Interferon alfa/pegylated interferon alfa: 30 days - Anagrelide: 30 days - Ruxolitinib: 30 days - Medical history, menstrual history, and recent sexual activity has been reviewed by the investigator to decrease the risk for inclusion of a POCBP with an early undetected pregnancy.
12. The participant (or legally acceptable representative) has provided documented informed consent for the study. The participant may also provide consent/assent for FBR. However, the participant may participate in the study without participating in FBR.
13. Is able to swallow capsules;
14. Is eligible to receive at least 1 of the protocol-defined BAT regimens in the opinion of the investigator in accordance with local and/or institutional guidelines or product labeling.
15. Has an ECOG Performance Status of 0 to 1 assessed within 7 days before the start of study intervention;
16. Adequate organ function as defined in the following table (Table 3). Specimens must be collected within 3 days before the start of study intervention. System Laboratory Value Hematological Hemoglobin (or hematocrit) 10 to 16 g/dL (and hematocrit <45%)a Renal Measured or calculated creatinine clearance b ≥30 mL/min Hepatic Total bilirubin ≤1.5 × ULN OR direct bilirubin ≤ULN for participants with total bilirubin levels >1.5 × ULN AST (SGOT) and ALT (SGPT) ≤2.5 × ULN Coagulation International normalized ratio (INR) OR prothrombin time (PT) Activated partial thromboplastin time (aPTT) ≤1.5 × ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants;
17. Participants who are HbsAg positive are eligible if they have received HBV antiviral therapy for at least 4 weeks and have undetectable HBV viral load before randomization. Note: Participants should remain on antiviral therapy throughout study intervention and follow local guidelines for HBV antiviral therapy post completion of study intervention. Hepatitis B screening tests are not required unless: - Known history of HBV infection - As mandated by local health authority;
18. Participants with history of HCV infection are eligible if HCV viral load is undetectable at screening. Note: Participants must have completed curative antiviral therapy at least 4 weeks before randomization. Hepatitis C screening tests are not required unless: - Known history of HCV infection - As mandated by local health authority;
19. HIV-infected participants must have well controlled HIV on ART, defined as: a. Participants on ART must have a CD4+ T-cell count ≥350 cells/mm3 at the time of screening. b. Participants on ART must have achieved and maintained virologic suppression defined as confirmed HIV RNA level below 50 or the LLOQ (below the limit of detection) using the locally available assay at the time of screening and for at least 12 weeks before screening. c. It is advised that participants must not have had any AIDS-defining opportunistic infections within the past 12 months. d. Participants on ART must have been on a stable regimen, without changes in drugs or dose modification, for at least 4 weeks before study entry (Day 1) and agree to continue ART throughout the study. e. The combination ART regimen must not contain any antiretroviral medications that interact with CYP3A4 inhibitors/inducers/substrates (https://www.fda.gov/drugs/drug-interactions-labeling/drug-development-and-druginteractions- table-substrates-inhibitors-and-inducers).

排除标准:

1. 已知对与bomedemstat或LSDi化学相关的药物(即MAOI)或所选的最佳可用治疗方法(包括阿那格雷、干扰素α/聚乙二醇干扰素、芦可替尼或白消安)有速发型或迟发型超敏反应或特异质,禁忌参加研究。
2. 可能干扰药物吸收(例如慢性腹泻或胃旁路手术史)、混淆研究结果或参与研究可能对个体造成额外风险的任何疾病/GI功能损害史。
3. 筛选时有证据表明存在出血增加风险,包括以下任一项: - 与骨髓增殖性疾病或其治疗不相关的重度血小板减少症或血小板功能障碍史。 - 已知的遗传性出血性疾病(例如,异常纤维蛋白原血症、Ⅸ因子缺乏、血友病、VWD、弥散性血管内凝血、纤维蛋白原缺乏或其他凝血因子缺乏)。 - 随机分组前8周内有活动性或慢性出血。 - 引起出血的自身免疫性疾病。
4. 有恶性肿瘤病史,除非已完成潜在治愈性治疗且2年内无恶性肿瘤证据。注:时间要求不适用于成功接受确定性切除的皮肤基底细胞癌、皮肤鳞状细胞癌或原位癌(不包括膀胱原位癌)的受试者。
5. 已知存在QT间期延长危险因素的受试者,如先天性长QT综合征、有已知QTc延长史、使用可延长QTc间期的药物以及低钾血症的受试者,不应接受阿那格雷治疗。
6. 有卡波西肉瘤和/或多发性Castleman病史的HIV感染受试者。
7. 在研究干预首次给药前14天内使用禁用药物(例如,所有造血生长因子、MAOI、CYP3A4的强效抑制剂和诱导剂、已知其代谢产物抑制CYP3A4的药物(如氯喹)、已知可引起各种血小板减少症的1c类抗心律失常药(如普罗帕酮)等)或预期在研究治疗期间需要使用这些药物中的任何一种(请参见章节6.5)。
8. 在研究干预首次给药前1周内(干扰素为4周)接受过ET既往治疗。
9. 既往接受过bomedemstat治疗。
10. 在研究干预给药前4周内接受过研究药物或使用过研究器械。
11. 有需要全身治疗的活动性感染。
12. 在研究干预首次给药前≤4周接受过大手术,或在首次给药前>4周接受过大手术但未从大手术的副作用中恢复。
13. 经治疗研究者判定,既往或当前存在可能会混淆研究结果或干扰个体配合研究要求的能力的任何疾病、治疗、实验室检查异常或其他情况,从而导致受试者无法从参与的研究中最大获益。 国家特定要求请参见附录7。

Exclusion criteria:

1. Known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs chemically related to bomedemstat or LSDi (ie, MAOIs) or the chosen best available therapy (including anagrelide, interferon alfa/pegylated interferon, ruxolitinib, or busulfan) that contraindicates participation.
2. History of any illness/impairment of GI function that might interfere with drug absorption (eg, chronic diarrhea or history of gastric bypass surgical procedure), confound the study results or pose an additional risk to the individual by participation in the study.
3. Evidence at the time of Screening of increased risk of bleeding, including any of the following: - History of severe thrombocytopenia or platelet dysfunction unrelated to a myeloproliferative disorder or its treatment. - Known hereditary bleeding disorder (eg, dysfibrinogenemia, factor IX deficiency, hemophilia, VWD, disseminated intravascular coagulation, fibrinogen deficiency, or other clotting factor deficiency). - Active or chronic bleeding within 8 weeks before randomization. - An autoimmune disorder causing bleeding.
4. History of a malignancy, unless potentially curative treatment has been completed with no evidence of malignancy for 2 years. Note: The time requirement does not apply to participants who underwent successful definitive resection of basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ, excluding carcinoma in situ of the bladder.
5. Participants with known risk factors for QT interval prolongation, such as congenital long QT syndrome, a known history of QTc prolongation, taking medicinal products that can prolong QTc interval and hypokalemia should not receive anagrelide.
6. HIV-infected participants with a history of Kaposi’s sarcoma and/or Multicentric Castleman’s Disease.
7. Use of prohibited medication within 14 days of first dose of study intervention (eg, all hematopoietic growth factors, MAOIs, strong inhibitors and inducers of CYP3A4, drugs such as chloroquine whose metabolites are known to inhibit CYP3A4, Class 1c antiarrhythmics such as propafenone that are known to cause thrombocytopenias, etc.) or expected to require any of these medications during study treatment (See Section 6.5).
8. Has received prior treatment for their ET within 1 week (4 weeks for interferon) before first dose of study intervention.
9. Has received prior treatment with bomedemstat.
10. Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration.
11. Has an active infection requiring systemic therapy.
12. Has had major surgical procedure ≤4 weeks before first dose of study intervention or has not recovered from side effects of major surgical procedure >4 weeks before first dose.
13. Has a history or current evidence of any condition, therapy, laboratory abnormality, or other circumstance that might confound the results of the study or interfere with the individual’s ability to cooperate with the requirements of the study, such that it is not in the best interest of the individual to participate, in the opinion of the treating investigator. Refer to Appendix 7 for country specific requirements.

研究实施时间:

Study execute time:

From 2023-12-04 00:00:00 To 2028-08-18 00:00:00  

征募观察对象时间:

Recruiting time:

From 2024-09-06 00:00:00 To 2025-08-11 00:00:00  

干预措施:

Interventions:

组别:

试验组

样本量:

150

Group:

Group A

Sample size:

干预措施:

Bomedemstat

干预措施代码:

Intervention:

Bomedemstat

Intervention code:

组别:

对照组

样本量:

150

Group:

Group B

Sample size:

干预措施:

最佳可用治疗

干预措施代码:

Intervention:

Best available treatment

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

湖北 

市(区县):

 

Country:

China 

Province:

Hubei 

City:

 

单位(医院):

华中科技大学同济医学院附属协和医院 

单位级别:

三级甲等 

Institution
hospital:

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

吉林 

市(区县):

 

Country:

China 

Province:

Jilin 

City:

 

单位(医院):

吉林大学第一医院 

单位级别:

三级甲等 

Institution
hospital:

The First Hospital of Jilin University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

陕西 

市(区县):

 

Country:

China 

Province:

Shaanxi 

City:

 

单位(医院):

陕西省人民医院 

单位级别:

三级甲等 

Institution
hospital:

Shaanxi Provincial People Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

山东 

市(区县):

 

Country:

China 

Province:

Shandong 

City:

 

单位(医院):

济南市中心医院 

单位级别:

三级甲等 

Institution
hospital:

Jinan Central Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

上海 

市(区县):

 

Country:

China 

Province:

Shanghai 

City:

 

单位(医院):

复旦大学附属华山医院 

单位级别:

三级甲等 

Institution
hospital:

Huashan Hospital, Fudan University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

上海 

市(区县):

 

Country:

China 

Province:

Shanghai 

City:

 

单位(医院):

复旦大学附属中山医院 

单位级别:

三级甲等 

Institution
hospital:

Zhongshan Hospital, Fudan University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

四川 

市(区县):

 

Country:

China 

Province:

Sichuan 

City:

 

单位(医院):

四川大学华西医院 

单位级别:

三级甲等 

Institution
hospital:

West China Hospital of Sichuan University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

天津 

市(区县):

 

Country:

China 

Province:

Tianjing 

City:

 

单位(医院):

中国医学科学院血液病医院(中国医学科学院血液学研究所) 

单位级别:

三级甲等 

Institution
hospital:

Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College.

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

浙江 

市(区县):

 

Country:

China 

Province:

Zhejiang 

City:

 

单位(医院):

浙江大学医学院附属第一医院 

单位级别:

三级甲等 

Institution
hospital:

The FIrst Affiliated Hospital, College of Medicine, Zhejiang University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

浙江 

市(区县):

 

Country:

China 

Province:

Zhejiang 

City:

 

单位(医院):

浙江大学医学院附属第四医院 

单位级别:

三级甲等 

Institution
hospital:

The Fourth Affiliated Hospital, Zhejiang University School of Medicine

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

安徽 

市(区县):

 

Country:

China 

Province:

Anhui 

City:

 

单位(医院):

蚌埠医学院第一附属医院 

单位级别:

三级甲等 

Institution
hospital:

first affiliated hospital of bengbu medical college

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

北京 

市(区县):

 

Country:

China 

Province:

Beijing 

City:

 

单位(医院):

中国医学科学院北京协和医院 

单位级别:

三级甲等 

Institution
hospital:

Peking Union Medical College Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

安徽 

市(区县):

 

Country:

China 

Province:

Anhui 

City:

 

单位(医院):

中国科学技术大学附属第一医院(安徽省立医院) 

单位级别:

三级甲等 

Institution
hospital:

THE FIRST AFFILIATED HOSPITAL OF USTCANHUI PROVINCAL HOSPITAL

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

北京 

市(区县):

 

Country:

China 

Province:

Beijing 

City:

 

单位(医院):

北京大学第三医院 

单位级别:

三级甲等 

Institution
hospital:

Peking University Third Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

重庆 

市(区县):

 

Country:

China 

Province:

Chongqing 

City:

 

单位(医院):

中国人民解放军陆军军医大学第二附属医院 

单位级别:

三级甲等 

Institution
hospital:

The Second Affiliated Hospital of the Army Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

福建 

市(区县):

 

Country:

China 

Province:

Fujian 

City:

 

单位(医院):

厦门大学附属第一医院 

单位级别:

三级甲等 

Institution
hospital:

The First Affiliated Hospital of Xiamen University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

福建 

市(区县):

 

Country:

China 

Province:

Fujian 

City:

 

单位(医院):

福建医科大学附属第二医院 

单位级别:

三级甲等 

Institution
hospital:

The Second Affiliated hospital of Fujian Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

广东 

市(区县):

 

Country:

China 

Province:

Guangdong 

City:

 

单位(医院):

南方医科大学南方医院 

单位级别:

三级甲等 

Institution
hospital:

Southern Medical University Southern Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

广东 

市(区县):

 

Country:

China 

Province:

Guangdong 

City:

 

单位(医院):

中山大学孙逸仙纪念医院 

单位级别:

三级甲等 

Institution
hospital:

SUN YAT-SEN MEMORIAL HOSPITAL

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

河北 

市(区县):

 

Country:

China 

Province:

Hebei 

City:

 

单位(医院):

河北医科大学第一医院 

单位级别:

三级甲等 

Institution
hospital:

the first hospital of hebei medical university

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

河南 

市(区县):

 

Country:

China 

Province:

Henan 

City:

 

单位(医院):

河南省肿瘤医院 

单位级别:

三级甲等 

Institution
hospital:

HenanCancerHospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

江苏 

市(区县):

 

Country:

China 

Province:

Jiangsu 

City:

 

单位(医院):

南通大学附属医院 

单位级别:

三级甲等 

Institution
hospital:

Affiliated Hospital of Nantong University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

江苏 

市(区县):

 

Country:

China 

Province:

Jiangsu 

City:

 

单位(医院):

江苏省人民医院(南京医科大学第一附属医院) 

单位级别:

三级甲等 

Institution
hospital:

Jiangsu Province Hospital (The First Affiliated Hospital with Nanjing Medical University)

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

江西 

市(区县):

 

Country:

China 

Province:

Jiangxi 

City:

 

单位(医院):

南昌大学第一附属医院 

单位级别:

三级甲等 

Institution
hospital:

The first affiliated hostipal of nanchang university

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

持久临床血液学缓解(DCHR)

指标类型:

主要指标

Outcome:

DCHR

Type:

Primary indicator

测量时间点:

第52周,疑似复发或疾病进展时,出组访视时

测量方法:

定义为从首次记录到血小板计数和WBC 计数降低的证据起至证实血小板计数增加至>400x109/L 或WBC 计数增加至>10 x109/L(经当地评估为由ET引起)、血栓或大出血事件(附录 10)或疾病进展至 MF、MDS 或 AML 的时间。

Measure time point of outcome:

Week 52,Suspected progression, EOT/DC

Measure method:

a confirmed reduction of platelet count to ≤400 × 109/L, absence of WBC count elevation to >10 × 109/L locally assessed to be due to ET, and, if WBC count is elevated to >10 × 109/L at screening, a reduction of WBC count to ≤10 × 109/L confirmed by first subsequent visit a minimum of 2 weeks apart, starting by Week 24 and maintained until at least Week 48, and the absence of any thrombotic or major hemorrhagic events (Appendix 10) or disease progression to MF,MDS or AML by Week 52. The definitio

指标中文名:

临床血液学缓解持续时间(DOCHR)

指标类型:

次要指标

Outcome:

DOCHR

Type:

Secondary indicator

测量时间点:

第52周,疑似复发或疾病进展时,出组访视时

测量方法:

对于证明为DCHR 的受试者,临床血液学缓解持续时间定义为从首次记录到血 小板计数和WBC 计数降低的证据(定义请参见方案章节4.2.1.1)起至证实血小 板计数增加至>400x109/L 或WBC 计数增加至>10 ? 109/L(经当地评估为由ET 引起)、血栓或大出血事件(附录 10)或疾病进展至 MF、MDS 或 AML 的 时间。

Measure time point of outcome:

Week 52,Suspected progression, EOT/DC

Measure method:

For participants who demonstrate DCHR, duration of clinicohematologic response is defined as the time from the first documented evidence of confirmed reduction of platelet and WBC count as defined in Section 4.2.1.1 of the protocol until confirmed increase of platelet count to >400 x 109 /L or WBC count >10 x 109 /L locally assessed to be due to ET, thrombotic or major hemorrhagic events (Appendix 10) or disease progression to MF, MDS or AML.

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

骨髓切片

组织:

Sample Name:

Bone marrow section

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

标本中文名:

骨髓穿刺液

组织:

Sample Name:

bone marrow aspirate

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

标本中文名:

全血

组织:

Sample Name:

Blood

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age 18 years
最大 Max age 99 years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

采用IRT 系统集中进行干预随机分组。共有2 个研究干预组。将受试者以1:1 的比 例随机分配至A 组(MK-3543)和B 组(BAT)。

Randomization Procedure (please state who generates the random number sequence and by what method):

Intervention randomization will occur centrally using an IRT system. There are 2 study intervention arms. Participants will be assigned randomly in a 1:1 ratio to Arm A (MK-3543) and Arm B (BAT).

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

不公开/Private

盲法:

开放标签

Blinding:

Open-label study

是否共享原始数据:

IPD sharing

No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

本研究的结果可能会在科学会议上发表或展示。申办方将遵守研究结果发表的要求。根据标准的编辑和伦理惯例,申办方通常将仅支持多中心研究数据的整体发表,而非单独发表各研究中心的数据。在这种情况下,将通过双方协商一致指定协调研究者。 如果发表活动不是由申办方执行,则研究者同意在提交前将所有手稿或摘要提交给申办方。这样可使申办方能够保护专有信息并提供意见。署名将由双方协商一致确定并符合ICMJE 署名要求。

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

The results of this study may be published or presented at scientific meetings. The Sponsor will comply with the requirements for publication of study results. In accordance with standard editorial and ethical practice, the Sponsor will generally support publication of multicenter studies only in their entirety and not as individual site data. In this case, a coordinating investigator will be designated by mutual agreement. If publication activity is not directed by the Sponsor, the investigator agrees to submit all manuscripts or abstracts to the Sponsor before submission. This allows the Sponsor to protect proprietary information and to provide comments. Authorship will be determined by mutual agreement and in line with ICMJE authorship requirements.

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

申办方将按照所有适用的数据保护法规进行本研究。申办方将为受试者分配一个唯一识别码。传送至申办方的任何受试者记录或数据集将仅包含识别码;不会传送受试者姓名或任何可识别出受试者身份的信息。必须告知受试者,申办方将根据当地数据保护法使用其个人研究相关数据。还必须向受试者解释披露程度。必须告知受试者,临床质量保证稽查员或申办方指定的其他授权人员、适当的IRB/IEC成员和药品监督管理部门的监察员可能会检查其病历。 通过签署本研究方案,研究者申明申办方向研究者提供的信息将一律保密,并且这些信息将披露给IRB、IEC或类似或专家委员会、附属机构和雇员(只有在有关机构或委员会、附属机构和雇员对保密责任妥为知悉的情况下方会向其披露)。研究者视本研究生成的数据为机密信息,除非该数据包含在本试验方案出版物章节列出的出版物中。 通过签署本试验方案,研究者同意申办方(或申办方代表)、IRB/IEC或药品监督管理部门代表可以查阅和/或复制研究文件,以验证工作表/CRF数据。通过签署知情同意书,受试者同意该过程。如果在验证工作表/CRF信息的过程中需要对研究文件进行影印,将仅通过唯一代码识别受试者;在将文件传送给申办方之前,将遮盖全名/姓名首字母。签署本方案即表示研究者同意根据所有适用的隐私法律、规则和法规处理所有在该研究中使用和披露的受试者数据。 要求申办方记录审查和批准本研究的各IRB/IEC的名称和地址。申办方还需要通过要求获得和维护IRB/IEC成员姓名和资质的记录,从而记录各IRB/IEC符合监管和ICH GCP要求的情况,并在监管机构要求时提供有关记录以供药品监督管理部门审查。

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

The Sponsor will conduct this study in compliance with all applicable data protection regulations.Participants will be assigned a unique identifier by the Sponsor. Any participant records or datasets that are transferred to the Sponsor will contain the identifier only; participant names or any information that would make the participant identifiable will not be transferred.The participant must be informed that his/her personal study-related data will be used by the Sponsor in accordance with local data protection law. The level of disclosure must also be explained to the participant. The participant must be informed that his/her medical records may be examined by Clinical Quality Assurance auditors or other authorized personnel appointed by the Sponsor, by appropriate IRB/IEC members, and by inspectors from regulatory authorities. By signing this protocol, the investigator affirms to the Sponsor that information furnished to the investigator by the Sponsor will be maintained in confidence, and such information will be divulged to the IRB, IEC, or similar or expert committee, affiliated institution, and employees, only under an appropriate understanding of confidentiality with such board or committee, affiliated institution, and employees. Data generated by this study will be considered confidential by the investigator, except to the extent that it is included in a publication as provided in the Publications section of this protocol. By signing this protocol, the investigator agrees that the Sponsor (or Sponsor representative), IRB/IEC, or regulatory authority representatives may consult and/or copy study documents to verify worksheet/CRF data. By signing the consent form, the participant agrees to this process. If study documents will be photocopied during the process of verifying worksheet/CRF information, the participant will be identified by unique code only; full names/initials will be masked before transmission to the Sponsor. By signing this protocol, the investigator agrees to treat all participant data used and disclosed in connection with this study in accordance with all applicable privacy laws, rules, and regulations. The Sponsor is required to record the name and address of each IRB/IEC that reviews and approves this study. The Sponsor is also required to document that each IRB/IEC meets regulatory and ICH GCP requirements by requesting and maintaining records of the names and qualifications of the IRB/IEC members and to make these records available for regulatory agency review upon request by those agencies.

数据与安全监察委员会:

Data and Safety Monitoring Committee:

有/Yes

注册人:

Name of Registration:

 2024-09-03 17:06:15