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Zanubrutinib Induction Followed by Delayed Fixed-Duration Combination With Sonrotoclax for CLL/SLL:Stop Trial 2.0 (ZS)

2026年6月28日 更新者:Yi Shuhua

A Single-arm, Multicenter, Prospective Phase II Clinical Trial of Delayed Fixed-duration Combination With Sotoraclax Following Zanubrutinib Induction in Patients With CLL/SLL: Stop Trial 2.0

The goal of this clinical trial is to learn if zanubrutinib induction followed by delayed fixed-duration combination with sonrotoclax works to treat previously untreated Chronic Lymphocytic Leukemia (CLL)/Small Lymphocytic Lymphoma (SLL). It will also learn about the safety of this combination regimen. The main questions it aims to answer are:Does this combination therapy achieve undetectable minimal residual disease (uMRD) in participants?What medical problems (adverse events) do participants have when taking zanubrutinib and sonrotoclax?Researchers will conduct a single-arm study to systematically evaluate the MRD clearance, efficacy, safety, and immune-related functions of this specific treatment sequence.Participants will:Low-risk group (without 17p deletion/TP53 mutation): Take zanubrutinib monotherapy for 12 cycles, followed by combination zanubrutinib + sonrotoclax for 12 cycles, then discontinue treatment for observation.High-risk group (with 17p deletion/TP53 mutation): Follow the same initial regimen (12 cycles monotherapy + 12 cycles combination), followed by zanubrutinib monotherapy maintenance until disease progression.Visit the clinic periodically for MRD assessment (via flow cytometry), efficacy evaluation (CT/PET-CT, lab tests), and safety checks (physical exam, blood tests, ECG).Undergo immune function evaluation via peripheral blood samples to assess changes in T-cell counts and subsets.

研究概览

详细说明

This exploratory Phase II single-arm clinical trial is designed to evaluate the efficacy, safety, and immune reconstitution effects of a novel delayed fixed-duration BTK inhibitor (BTKi) induction followed by BCL-2 inhibitor combination regimen in previously untreated chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) patients, with risk-stratified post-treatment management based on TP53/del(17p) status.Scientific RationaleCLL/SLL is a mature B-cell clonal proliferative neoplasm, where traditional chemoimmunotherapy has limited efficacy and high toxicity in high-risk populations with del(17p)/TP53 mutations. The current treatment paradigm has shifted to targeted therapies, with BTKi + BCL-2i combination as a first-line strategy. However, existing BCL-2i-based fixed-duration regimens have a grade ≥3 treatment-emergent adverse event (TEAE) incidence of 45%-80%, primarily hematological toxicities and infections. Prior clinical evidence shows that 12 cycles of BTKi monotherapy induction before combination therapy (the "brake" regimen) reduces infection risk compared to alternating chemoimmunotherapy + BTKi regimens, and 12 months of BTKi monotherapy increases T-cell receptor diversity, correlating with better clinical response and lower infection rates in relapsed/refractory CLL. This supports that extending BTKi induction before fixed-duration BCL-2i combination may optimize immune reconstitution, improving safety and long-term disease control.The study uses two investigational agents: zanubrutinib, a next-generation highly selective BTKi with higher BTK target selectivity and fewer off-target effects (e.g., lower cardiovascular adverse event risk vs. first-generation ibrutinib) compared to ibrutinib, approved in China for relapsed/refractory CLL/SLL and mantle cell lymphoma (MCL); and sonrotoclax, a highly selective BCL-2 inhibitor that restores mitochondrial apoptosis in CLL cells, with monotherapy showing 80.5% ORR and 26.8% CR/CRi rate in BTKi-pretreated high-risk relapsed/refractory CLL, and zanubrutinib + sonrotoclax combination achieving 92% 48-week uMRD rate and 100% 30-month PFS rate in treatment-naïve CLL/SLL. Study Design and PopulationThe study will consecutively enroll approximately 60 treatment-naïve CLL/SLL subjects meeting the 2025 Chinese CLL/SLL Diagnosis and Treatment Guidelines criteria, stratified into two groups:High-risk group (n=20): With 17p deletion (del17p) and/or TP53 mutationLow-risk group (n=40): Without del17p and/or TP53 mutationLow-risk group: Discontinue all treatment and enter observational follow-upHigh-risk group: Receive zanubrutinib monotherapy maintenance until disease progressionThis protocol is designed to systematically evaluate whether the delayed BCL-2i combination after extended BTKi induction improves MRD clearance, reduces toxicity, and optimizes long-term outcomes in treatment-naïve CLL/SLL, with tailored post-treatment management for high-risk populations to address their higher relapse risk.

研究类型

介入性

注册 (估计的)

60

阶段

  • 阶段2

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

研究联系人备份

学习地点

    • Guangdong
      • Shenzhen、Guangdong、中国
        • Shenzhen Second People's Hospital
        • 接触:
    • Henan
      • Zhengzhou、Henan、中国
        • Henan Cancer Hospital
        • 接触:
    • Hunan
      • Changsha、Hunan、中国
        • The Second Xiangya Hospital of Central South University
        • 接触:
    • Jiangsu
      • Nanjing、Jiangsu、中国
        • Jiangsu Province Hospital
        • 接触:
    • Jiangxi
      • Nanchang、Jiangxi、中国
        • The First Affiliated Hospital of Nanchang University
        • 接触:
    • Shandong
      • Jinan、Shandong、中国
        • Qilu Hospital of Shandong University
        • 接触:
    • Tianjin Municipality
      • Tianjin、Tianjin Municipality、中国、300000
        • Blood Disease Hospital of Chinese Academy of Medical Sciences (Institute of Hematology, CAMS)
        • 接触:
        • 接触:

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人
  • 年长者

接受健康志愿者

不

描述

Inclusion Criteria:

  1. Aged ≥18 years, no restriction on gender.
  2. Newly diagnosed chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) consistent with the Chinese Guidelines for the Diagnosis and Treatment of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (2025 Edition).
  3. Meet at least one of the following indications for CLL treatment:

    1. Evidence of progressive bone marrow failure manifested by progressive reduction in hemoglobin and/or platelet counts.
    2. Massive splenomegaly (spleen palpable >6 cm below the left costal margin) or symptomatic splenomegaly.
    3. Bulky lymphadenopathy (maximum diameter >10 cm) or symptomatic lymphadenopathy.
    4. Progressive lymphocytosis: ≥50% increase in lymphocyte count within 2 months, or lymphocyte doubling time (LDT) <6 months. LDT alone shall not serve as an indication for treatment if the baseline lymphocyte count is <30×10⁹/L.
    5. Symptomatic organ dysfunction caused by CLL/SLL (involving skin, kidney, lung, spine and other organs).
    6. Autoimmune hemolytic anemia (AIHA) and/or immune thrombocytopenia (ITP) with inadequate response to corticosteroid therapy.
    7. At least one of the following disease-related B symptoms:

      • Unintentional weight loss ≥10% within the preceding 6 months without identifiable cause; ② Severe fatigue (ECOG performance status ≥2, inability to perform routine daily activities);

        ③ Unexplained fever >38.0 °C lasting ≥2 weeks without confirmed infection;

        ④ Unexplained night sweats persisting for more than 1 month without confirmed infection.

  4. ECOG performance status ≤2.
  5. Major organ function meets the following criteria within 7 days prior to treatment initiation:

    ○ Hematology: platelet count ≥30×10⁹/L;

    ○ Biochemistry: total bilirubin (TBIL) ≤1.5×upper limit of normal (ULN); alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤2.5×ULN; creatinine clearance ≥30 mL/min;

    ○ Cardiac Doppler echocardiography: left ventricular ejection fraction (LVEF) ≥lower limit of normal (50%).

  6. Male and female participants agree to use effective contraception throughout the study period and for a minimum of 4 weeks after treatment completion.
  7. Estimated life expectancy ≥6 months.
  8. The patient voluntarily participates in the trial and signs the written informed consent form.

Exclusion Criteria:

  • 1. Previously received any systemic anti-tumor therapy for CLL/SLL. 2. Pathologically confirmed transformation to Richter's syndrome via biopsy. 3. Severe non-lymphoma-related hepatic or renal impairment defined as: ALT/AST >3×ULN or TBIL >2×ULN; creatinine clearance <30 mL/min or serum creatinine >2×ULN.

    4. Significant pre-existing renal, neurological, psychiatric, pulmonary, endocrine, metabolic, immune, cardiovascular or hepatic disease judged by the investigator to compromise trial participation.

    5. Other uncontrolled clinically significant medical conditions including but not limited to:

    a. Uncontrolled systemic infection (viral, bacterial, fungal); positive hepatitis B surface antigen with HBV-DNA >1000 IU/mL; positive anti-HCV antibody or detectable HCV-RNA; positive anti-HIV antibody.

    b. Active uncontrolled autoimmune diseases other than autoimmune cytopenias. 6. Clinical signs of central nervous system (CNS) dysfunction or documented CNS infiltration by disease.

    7. Received major surgery (excluding lymph node biopsy) within 14 days prior to enrollment or scheduled to undergo major surgery during trial treatment.

    8. Inability to swallow capsules, malabsorption syndrome, or severe gastrointestinal disorders including prior gastrectomy, small bowel resection, symptomatic inflammatory bowel disease, ulcerative colitis, partial or complete intestinal obstruction.

    9. Concurrent use of strong CYP3A inhibitors or inducers during study drug initiation and dose titration period.

    10. Pregnant or breastfeeding females; females of childbearing potential without reliable contraceptive measures.

    11. Clinically significant cardiovascular disease (NYHA cardiac functional class III/IV); history of myocardial infarction, malignant arrhythmia (including QTc ≥480 ms), inadequately controlled hypertension (systolic BP ≥150 mmHg, diastolic BP ≥100 mmHg) or unstable angina within 6 months before enrollment.

    12. Coagulopathy-related exclusion: long-term treatment with multiple high-dose anticoagulants with no possibility of short-term discontinuation; persistent uncontrolled active bleeding; or prior life-threatening irreversible bleeding events.

    13. History of severe hypersensitivity to any active ingredient or excipient of the investigational product.

    14. Systemic disorders that may impair patient compliance with trial requirements.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:非随机化
  • 介入模型:并行分配
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:Low-risk group(Without del17p and/or TP53 mutation)
12 cycles of zanubrutinib monotherapy induction → 12 cycles of zanubrutinib combined with sonrotoclax → discontinuation of study drugs followed by regular follow-up

12 cycles of zanubrutinib monotherapy induction → 12 cycles of zanubrutinib combined with sonrotoclax → discontinuation of study drugs followed by regular follow-up Zanubrutinib Dosage The total daily oral dose is 320 mg. The dosing schedule is 160 mg (2 × 80 mg capsules) twice daily, Sonrotoclax Dose Escalation Schedule

Cycle 13 Week 1 (C13W1):

Days 1-3: 1 mg daily (1 × 1 mg tablet); Days 4-7: 2 mg daily (2 × 1 mg tablets)

Cycle 13 Week 2 (C13W2):

Days 1-3: 5 mg daily (1 × 5 mg tablet); Days 4-7: 10 mg daily (2 × 5 mg tablets)

Cycle 13 Week 3 (C13W3):

Days 1-3: 20 mg daily (1 × 20 mg tablet); Days 4-7: 40 mg daily (2 × 20 mg tablets)

Cycle 13 Week 4 (C13W4):

Days 1-3: 80 mg daily (1 × 80 mg tablet); Days 4-7: 160 mg daily (2 × 80 mg tablets) Cycle 14 Week 1 (C14W1) and all subsequent cycles: 320 mg daily (4 × 80 mg tablets)

实验性的:High-risk group(With del17p and/or TP53 mutation)
12 cycles of zanubrutinib followed by 12 cycles of zanubrutinib in combination with sonrotoclax, then zanubrutinib maintenance monotherapy until disease progression or intolerable toxicity occurs.

12 cycles of zanubrutinib monotherapy induction → 12 cycles of zanubrutinib combined with sonrotoclax → discontinuation of study drugs followed by regular follow-up Zanubrutinib Dosage The total daily oral dose is 320 mg. The dosing schedule is 160 mg (2 × 80 mg capsules) twice daily, Sonrotoclax Dose Escalation Schedule

Cycle 13 Week 1 (C13W1):

Days 1-3: 1 mg daily (1 × 1 mg tablet); Days 4-7: 2 mg daily (2 × 1 mg tablets)

Cycle 13 Week 2 (C13W2):

Days 1-3: 5 mg daily (1 × 5 mg tablet); Days 4-7: 10 mg daily (2 × 5 mg tablets)

Cycle 13 Week 3 (C13W3):

Days 1-3: 20 mg daily (1 × 20 mg tablet); Days 4-7: 40 mg daily (2 × 20 mg tablets)

Cycle 13 Week 4 (C13W4):

Days 1-3: 80 mg daily (1 × 80 mg tablet); Days 4-7: 160 mg daily (2 × 80 mg tablets) Cycle 14 Week 1 (C14W1) and all subsequent cycles: 320 mg daily (4 × 80 mg tablets)

Continuous zanubrutinib monotherapy until disease progression or intolerable toxicity occurs.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
uMRD rate
大体时间:At the end of 12 cycles (each cycle is 28 days) of combination therapy
Proportion of patients achieving undetectable minimal residual disease (uMRD, defined as MRD <10-⁴, fewer than 1 CLL cell per 10,000 leukocytes)
At the end of 12 cycles (each cycle is 28 days) of combination therapy

次要结果测量

结果测量
措施说明
大体时间
Objective Response Rate
大体时间:At the end of 12 cycles (each cycle is 28 days) of combination therapy
The proportion of patients who achieve a Complete Response (CR) and a Partial Response (PR) according to standardized criteria
At the end of 12 cycles (each cycle is 28 days) of combination therapy
Complete Response Rate
大体时间:At the end of 12 cycles (each cycle is 28 days) of combination therapy
The percentage of patients who meet the stringent criteria for Complete Remission
At the end of 12 cycles (each cycle is 28 days) of combination therapy
Duration of Response
大体时间:up to 8 years
The time from the first documented objective response (CR or PR) until disease progression (PD) or death from any cause.
up to 8 years
Progression-Free Survival
大体时间:up to 8 years
The time from treatment initiation (or randomization) to disease progression or death
up to 8 years
Overall Survival
大体时间:up to 8 years
The time from treatment initiation (or randomization) to death from any cause
up to 8 years

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

合作者

调查人员

  • 首席研究员:Shuhua Yi, Docter、Blood Disease Hospital of Chinese Academy of Medical Sciences (Institute of Hematology, CAMS)

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (估计的)

2026年6月8日

初级完成 (估计的)

2029年12月31日

研究完成 (估计的)

2034年8月1日

研究注册日期

首次提交

2026年6月2日

首先提交符合 QC 标准的

2026年6月28日

首次发布 (实际的)

2026年7月2日

研究记录更新

最后更新发布 (实际的)

2026年7月2日

上次提交的符合 QC 标准的更新

2026年6月28日

最后验证

2026年6月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

是的

IPD 计划说明

only IPD used in the results publication

IPD 共享时间框架

June 2026-January 2030

IPD 共享访问标准

Researchers who are interested in the study can obtain the above information by sending an email to my mailbox

IPD 共享支持信息类型

  • 研究方案
  • 国际碳纤维联合会

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

在美国制造并从美国出口的产品

不

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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