决定异体 CAR T 细胞排斥与扩增的细胞和分子机制
Cellular and molecular mechanisms determining allogeneic CAR T cell rejection and expansion.
我们评估了11例接受单一批次cemacabtagene ansegedleucel(cema-cel)治疗的大B细胞淋巴瘤患者,cemacabtagene ansegedleucel是一种异体抗CD19 CAR T产品。
英文原题:Frontline Risk-Adapted Optimization of Novel Targeted Immunotherapy Evaluation in High-Risk MCL
这是一项 II 期注册临床试验,评估细胞治疗用于套细胞淋巴瘤的安全性、可行性及初步疗效。当前状态:尚未开始招募。计划入组 52 例。登记号:NCT07569965。
不限性别 · ≥ 18 Years
纳入标准: * MCL的诊断需要通过cyclin D1过表达或存在t(11;14) (q13; q32)易位来经组织学确认 1. 受试者在MB-CART2019.1输注前应有可用的肿瘤活检样本(至少5张未染色组织切片或组织块),最好在诱导治疗前采集。 2. 如果无法获得存档组织,患者可在与方案主席和/或方案官员讨论后入组 * 诊断时的高危疾病,定义为至少符合以下一项标准: 1. 高危MIPI-c(按https://www.european-mcl.net/home/scores-mipi-mipi-c-19.html计算) 2. 简化MIPI高危≥6.2 3. TP53突变或IHC显示TP53表达≥50% 4. 复杂核型[例如3个或更多细胞遗传学异常,不包括t(11:14)的存在或缺失] 5. Ki67≥ 50% 6. 母细胞样或多形性组织学且Ki-67 ≥30% 7. 诊断时存在软脑膜疾病 8. NOTCH1突变 * 已接受2个周期的适当全身诱导治疗,包括CD20抗体 +/- 细胞毒性治疗 +/- 口服靶向治疗(例如BTKi、免疫调节性咪类药物),并考虑以下因素: 1. 单用CD20抗体不计入一个治疗周期 2. 诱导周期不必完全相同 3. 对于BTKi和/或来那度胺,一个周期定义为14-28天,并将基于机构治疗方案。 4. 鞘内化疗不计入一个治疗周期 5. 放疗不计入一个治疗周期 * 筛选时东部肿瘤协作组(ECOG)体能状态为0或1。如果体能状态下降归因于淋巴瘤,筛选时ECOG体能状态为2是允许的 * 在2个周期诱导治疗后,通过18F-氟脱氧葡萄糖(FDG)-正电子发射断层扫描(PET)/计算机断层扫描(CT)(首选)或包括颈部/胸部/腹部/盆腔的增强CT扫描[37],按Lugano 2014标准评估的疾病缓解为完全缓解、部分缓解或疾病稳定。如果参与者有CNS疾病史,则其磁共振成像(MRI)必须无实质性疾病病史或活动性实质性疾病 a. 如果孤立性软脑膜疾病较基线评估无临床进展或恶化,则允许入组 * 肌酐清除率(通过直接尿液收集、慢性肾脏病流行病学协作组[CKD-EPI]或Cockcroft-Gault公式或机构标准估算)≥ 45 mL/min * 有生育能力或使女性受孕可能的受试者必须愿意从入组本研究时起至研究随访期采取避孕措施 排除标准: * 无法给予知情同意 * 在前2个诱导周期期间发生任何疾病进展 * 肌酐清除率(通过直接尿液收集、慢性肾脏病流行病学协作组[CKD-EPI]公式、Cockcroft-Gault公式或机构标准估算)< 45 mL/min * 超声心动图(ECHO)或多门控放射性核素采集扫描(MUGA)测定的心脏射血分数(EF)< 45%(如提供范围,评估合格性时可采用范围的上限值) * 室内空气下静息O2饱和度 < 92% * 血清丙氨酸氨基转移酶(ALT)/天冬氨酸氨基转移酶(AST)≥ 年龄对应正常值上限(ULN)的5倍 * 总胆红素 >1.5 mg/dL,Gilbert综合征患者除外 * 中性粒细胞绝对计数(ANC)< 1000/μL,除非与套细胞淋巴瘤骨髓浸润相关。ANC评估前7天内不得使用短效粒细胞集落刺激因子(G-CSF) * 血小板计数 < 50,000/µL,除非与套细胞淋巴瘤骨髓浸润或脾功能亢进相关。评估前7天内不得输血。 * 筛选时绝对CD3计数 < 50/μL * 单采前7天内淋巴细胞绝对计数(ALC)< 100/μL * 已知人类免疫缺陷病毒(HIV)感染史 * 已知活动性乙型肝炎感染(乙型肝炎表面抗原[HBsAg]阳性)。如有乙型肝炎治疗史,病毒载量必须为聚合酶链反应(PCR)阴性;如HBsAg阴性且抗乙型肝炎核心(HBc)抗体阳性,则需进行抗病毒预防 * 已知活动性丙型肝炎病毒感染(抗-HCV抗体阳性)。如患者丙型肝炎抗体阳性,病毒载量必须通过定量PCR和/或核酸检测检测不到 * 入组前6个月内无癫痫发作史 * 已知过去12个月内脑血管意外(CVA)史 * 已知自身免疫性中枢神经系统疾病病史或现症,如多发性硬化、视神经炎或其他免疫性和/或炎症性疾病 * 存在活动性中枢神经系统疾病,经研究者判断可能影响神经毒性评估能力 * 入组时存在未控制的细菌、病毒或真菌感染。 a. 未控制定义为目前正在用药且充分医学治疗后病情进展或无临床改善 * 妊娠或哺乳期女性 * 既往或并发恶性肿瘤,以下情况除外: 1. 充分治疗的基底细胞癌或鳞状细胞癌(研究入组前需伤口充分愈合) 2. 宫颈或乳腺原位癌,经治愈性治疗且研究前至少2年无复发证据 3. 接受Lupron或他莫昔芬等激素治疗且临床缓解≥ 2年的充分治疗的乳腺癌或前列腺癌——或——低级别未治疗的前列腺癌处于观察中 4. 已完全切除/以治愈为目的治疗且完全缓解≥2年的原发性恶性肿瘤 5. 有既往或合并恶性肿瘤,但其自然病史或治疗不太可能干扰安全性和有效性评估的受试者,在与方案主席或方案官员讨论后有资格参加本试验 * 严重免疫抑制的参与者,例如由于当前对非神经系统自身免疫性疾病(如克罗恩病、类风湿关节炎、系统性红斑狼疮)进行全身治疗 * 需要长期使用相当于泼尼松>10 mg/天的全身性皮质类固醇的医学状况。 * 入组前6个月内有心肌梗死、心脏血管成形术或支架植入术、不稳定型心绞痛或其他临床显著心脏病的病史 * 对于全身治疗或放射治疗,在计划白细胞分离术时,必须至少已过2周或5个半衰期,以较短者为准 * BTKis可继续通过单采术直至淋巴耗竭开始前一天 * 基线神经系统缺陷会干扰治疗或监测,通过基线时的免疫效应细胞相关脑病(ICE)评估确定 * 对本研究中任何药物有严重速发型超敏反应史 * 拒绝或无法参与额外的慢病毒基因治疗长期随访(LTFU)方案 * 因任何适应症接受过既往CAR-T治疗或针对B细胞淋巴瘤的全身基因修饰治疗 * 因任何适应症接受过既往异基因干细胞移植。 * 因癌症治疗接受过既往双特异性T细胞衔接(BITE)抗体 * 既往T细胞受体工程化T细胞治疗
Inclusion Criteria: * Diagnosis of MCL requires histologic confirmation by either overexpression of cyclin D1 OR presence of t(11;14) (q13; q32) translocation 1. Subject should have a tumor biopsy sample (at least 5 unstained slides of tissue or tissue block) available prior to MB-CART2019.1 infusion, preferably collected pre-induction. 2. If archival tissue is not available, the patient may be enrolled after discussion with the protocol chair and/or protocol officer * High Risk Disease at diagnosis, defined as having at least ONE of the criteria below: 1. High risk MIPI-c (as calculated by https://www.european-mcl.net/home/scores-mipi-mipi-c-19.html) 2. Simplified MIPI high-risk ≥6.2 3. TP53 mutation OR ≥50% TP53 expression by IHC 4. Complex Karyotype \[e.g. 3 or more cytogenetic abnormalities, excluding the presence or absence of t(11:14)\] 5. Ki67≥ 50% 6. Blastoid or pleomorphic histology with Ki-67 ≥30% 7. Leptomeningeal Disease at diagnosis 8. NOTCH1 mutation * Received 2 cycles of appropriate systemic induction therapy, which includes a CD20 antibody +/- cytotoxic therapy +/- oral targeted therapy (e.g., BTKi, immunomodulatory imid drugs), with the following considerations: 1. CD20 antibody alone does not count towards a cycle of treatment 2. Induction cycles do not have to be identical 3. For BTKis and/or lenalidomide a cycle is defined as 14-28 days and will be based on institutional treatment regimens. 4. Intrathecal chemotherapy will not count towards a cycle of treatment 5. Radiation therapy will not count towards a cycle of treatment * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 at screening. ECOG performance status of 2 at screening is allowed if the decrease in performance status is attributed to lymphoma * Disease response assessment of either complete response, partial response, or stable disease by Lugano 2014 criteria assessed by 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) (preferred) or contrast enhanced CT scans including neck/chest/abdomen/pelvis \[37\] after 2 cycles of induction therapy. If the participant has history of CNS disease, then he/she must have no history of or active parenchymal disease on magnetic resonance imaging (MRI) a. Leptomeningeal alone disease is allowable if it is not clinically progressive or worsening from baseline assessment * A creatinine clearance (as estimated by direct urine collection, Chronic Kidney Disease Epidemiology Collaboration \[CKD-EPI\], or Cockcroft-Gault Equation or institutional standard) ≥ 45 mL/min * Subjects of childbearing or child fathering potential must be willing to practice birth control from the time of enrollment on this study until the follow-up period of the study Exclusion Criteria: * Unable to give informed consent * Any disease progression that occurs during the first 2 induction cycles * A creatinine clearance (as estimated by direct urine collection, Chronic Kidney Disease Epidemiology Collaboration \[CKD-EPI\], or Cockcroft-Gault Equation or institutional standard) \< 45 mL/min * Cardiac ejection fraction (EF) \< 45% as determined by an echocardiogram (ECHO) or Multigated Radionuclide Acquisition scan (MUGA) (if range is provided, the upper value of the range may be used for assessing eligibility) * Resting O2 saturation \< 92% on room air * Serum alanine aminotransferase (ALT) / aspartate aminotransferase (AST) ≥ 5 times the Upper Limit of Normal (ULN) for age * Total bilirubin \>1.5 mg/dL, except in individuals with Gilbert's syndrome * Absolute neutrophil count (ANC) \< 1000/μL unless related to bone marrow infiltration by mantle cell lymphoma. No short-acting granulocyte colony-stimulating factor (G-CSF) use within 7 days of ANC evaluation * Platelet count \< 50,000/µL unless related to bone marrow infiltration or hypersplenism by mantle cell lymphoma. No transfusions within 7 days of assessment. * Absolute CD3 count \< 50/μL at screening * Absolute lymphocyte count (ALC) \< 100/μL within 7 days of apheresis * Known history of infection with human immunodeficiency virus (HIV) * Known active infection with hepatitis B (hepatitis B surface antigen \[HBsAg\] positive). If there is a history of treated hepatitis B, the viral load must be polymerase chain reaction (PCR) negative; antiviral prophylaxis is required if HBsAg negative and anti-hepatitis B core (HBc) positive * Known active infection with hepatitis C virus (anti-HCV antibody positive). If patient has a positive hepatitis C antibody, the viral load must be undetectable per quantitative PCR and/or nucleic acid testing * No seizure history within 6 months prior to enrollment * Known history of cerebral vascular accident (CVA) within prior 12 months * Known history or presence of autoimmune CNS disease, such as multiple sclerosis, optic neuritis or other immunologic /or inflammatory diseases * Presence of active CNS disorder that, in the judgment of the investigator, may impair the ability to evaluate neurotoxicity * Uncontrolled bacterial, viral, or fungal infection at the time of enrollment. a. Uncontrolled is defined as currently taking medication and with progression or no clinical improvement on adequate medical treatment * Pregnant or breast-feeding woman * Previous or concurrent malignancy with the following exceptions: 1. Adequately treated basal cell or squamous cell carcinoma (adequate wound healing is required prior to study entry) 2. In situ carcinoma of the cervix or breast, treated curatively and without evidence of recurrence for at least 2 years prior to the study 3. Adequately treated breast or prostate carcinoma on hormonal therapies such as Lupron or tamoxifen and in clinical remission of ≥ 2 years -or- low-grade untreated prostate cancer under observation 4. A primary malignancy which has been completely resected / treated with curative intent and in complete remission of ≥ 2 years 5. Subjects with prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with safety and efficacy assessment are eligible for this trial after discussion with protocol chair or protocol officer * Severely immunocompromised participants e.g. due to current systemic treatment of non-neurologic autoimmune disease (e.g. Crohn's disease, rheumatoid arthritis, systemic lupus erythematosus) * Medical condition requiring prolonged use of systemic corticosteroids equivalent to prednisone \>10 mg/day. * History of myocardial infarction, cardiac angioplasty or stenting, unstable angina, or other clinically significant cardiac disease within 6 months of enrollment * For systemic therapy or radiation therapy, at least 2 weeks or 5 half-lives, whichever is shorter, must have elapsed at the time of scheduled leukapheresis * BTKis can be continued through apheresis until one day prior to start of lymphodepletion * Baseline neurologic deficits that would interfere with therapy or monitoring, determined using Immune Effector Cell-Associated Encephalopathy (ICE) Assessment at baseline * History of severe immediate hypersensitivity reaction to any of the agents in this study * Refusal or inability to participate in additional lentiviral gene therapy long-term follow-up (LTFU) protocol * Prior CAR-T therapy for any indication or systemic gene-modifying therapy for B cell lymphoma * Prior allogeneic stem cell transplant for any indication. * Prior bispecific T cell engaging (BITE) antibodies for cancer therapy * Prior T cell receptor-engineered T cell therapy
以上为辅助阅读译文。是否适合入组须由主治医生判断,最终以登记平台与研究者确认为准。
主要终点:Progression-free survival (PFS) · The primary endpoint is PFS at 1-year following MB2019.1 CAR T cell infusion. PFS is defined as the time interval from CAR T cell infusion until a PFS event occurs. · 1 year post-infusion
次要终点:Treatment Response;Overall Survival (OS);Duration of Complete Response (DOCR);Non-relapse Mortality (NRM);Relapse/progression;IEC Related Toxicities;Event-free Survival (EFS)
FRONTIER是一项前瞻性、单臂、开放标签、多中心的II期研究,旨在评估MB-CART2019.1(Zamtocabtagene Autoleucel)疗法作为高风险套细胞淋巴瘤(MCL)参与者一线巩固治疗的效果。
FRONTIER is a prospective, single arm, open label, multi-center, Phase II study of MB-CART2019.1 (Zamtocabtagene Autoleucel) therapy as frontline consolidation for high-risk Mantle Cell Lymphoma (MCL) participants
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