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:A Phase I/II Study to Evaluate the Safety of Cellular Immunotherapy Using Autologous T Cells Engineered to Express a CD20-Specific Chimeric Antigen Receptor for Patients With Relapsed or Refractory B Cell Non-Hodgkin Lymphomas
这是一项 I/II 期注册临床试验,评估 CAR-T 细胞治疗非霍奇金淋巴瘤、慢性淋巴细胞白血病、弥漫大 B 细胞淋巴瘤的安全性、可行性及初步疗效。当前状态:进行中(不再招募)。计划入组 53 例。试验地点:美国 · 西雅图(共 1 个中心)。登记号:NCT03277729。
不限性别 · ≥ 18 Years
纳入标准:
* 患者必须患有B细胞非霍奇金淋巴瘤或慢性淋巴细胞白血病/小淋巴细胞淋巴瘤。符合条件的淋巴瘤亚型包括(但不限于):套细胞、滤泡性、淋巴浆细胞性、边缘区、转化的惰性B细胞淋巴瘤(包括转化的慢性淋巴细胞白血病[CLL]),或对至少一种既往治疗方案有应答后复发或对既往治疗难治的弥漫性大B细胞淋巴瘤;套细胞淋巴瘤患者必须既往接受过Bruton酪氨酸激酶(BTK)抑制剂治疗,且出现疾病进展、不耐受,或暴露于该药物至少3个月;CLL/SLL患者如果对BTKi和/或BCL-2抑制剂出现疾病进展或不耐受,则符合条件;还要求他们接受过另一种药物治疗至少3个月(即对BTKi进展/不耐受的患者需要接受BCL-2抑制剂治疗至少3个月,对BCL-2抑制剂进展/不耐受的患者需要暴露于BTKi至少3个月);新发弥漫性大B细胞淋巴瘤(DLBCL)患者必须符合以下标准之一:
* 活检证实的对含蒽环类药物和利妥昔单抗或其他抗CD20抗体的前线方案难治性疾病(即“原发难治”),其中方案完成后6个月内出现的任何疾病复发均视为难治
* 在至少以下之一后出现复发或难治性疾病:
* 至少2线治疗(包括至少一种含蒽环类药物和抗CD20抗体的方案)
* 自体干细胞移植
* 异基因干细胞移植
* 由惰性淋巴瘤转化的大细胞淋巴瘤患者,如果既往针对惰性或大细胞组织学接受过含蒽环类药物的方案治疗,则符合条件
* 中枢神经系统(CNS)淋巴瘤患者需要符合以下标准之一:
* 原发性CNS淋巴瘤:
* 根据治疗医生的判断,含大剂量甲氨蝶呤(MTX)方案治疗3个周期后疾病进展或至少4个周期后应答不充分,或
* 根据治疗医生判断,因合并症或耐受性问题不适合MTX治疗,或
* 对基于MTX的治疗初始应答后疾病复发
* 继发性CNS淋巴瘤:
* 对含MTX方案至少2个周期应答不充分,或
* 对基于MTX的治疗初始应答后疾病复发
* 患者必须年满18岁,性别、种族或民族不限
* 患者必须能够理解并提供书面知情同意
* 有生育能力的女性在入组前2周内血清妊娠试验阴性,有生育能力定义为未接受手术绝育或至少1年无月经
* 有生育能力的男性和女性患者必须愿意在CAR T细胞输注前、输注期间以及输注后至少4个月内使用有效的避孕方法
* 患者的Karnofsky体能状态评分必须≥60%
* 经Fred Hutchinson癌症研究中心(FHCRC)/西雅图癌症护理联盟(SCCA)/华盛顿大学(UW)/Harborview医疗中心(HMC)对初始或后续活检或其他病理材料的内部病理审查确认诊断
* 通过筛查时进行的活检获得的肿瘤标本,经免疫组织化学或流式细胞术证实CD20表达;如果筛查肿瘤活检的CD20表达不明确或由于技术原因无法评估,可使用同期肿瘤标本(如骨髓活检或循环肿瘤细胞)的CD20表达来满足此要求。对于CLL和淋巴浆细胞性淋巴瘤/华氏巨球蛋白血症(WM)患者,在与研究主要研究者(PI)讨论后,可因临床原因免除筛查肿瘤活检。对于中枢神经系统淋巴瘤患者,不需要筛查肿瘤活检,CD20表达的证椐可从原始或既往活检中记录
* 血清肌酐≤2.5
* 总胆红素≤3.0 mg/dL
* 天冬氨酸氨基转移酶(AST)和丙氨酸氨基转移酶(ALT)≤5倍正常值上限
* 肺功能充分,定义为呼吸困难≤1级且室内空气中饱和氧(SaO2)≥92%;如果根据治疗医生的临床判断进行肺功能检查(PFT),第1秒用力呼气量(FEV1)≥预测值的50%且一氧化碳弥散能力(DLCO)(校正后)≥预测值的40%的患者符合条件
* 心脏功能充分,定义为经超声心动图或门控血池扫描(MUGA)评估的左心室射血分数(LVEF)≥50%,或LVEF为45-49%且经心脏科医生许可
* 可测量病灶,可通过计算机断层扫描(CT)、超声或磁共振成像(MRI)技术在至少一个维度上准确测量为≥1.5 cm。仅可通过氟脱氧葡萄糖F-18(FDG)-正电子发射断层扫描(PET)成像测量的结外病灶也将被允许。请注意,如果进行了切除活检且切除了唯一的可测量病灶部位,则患者不符合白细胞分离术和CAR T细胞产品制备的条件
* 对于中枢神经系统淋巴瘤患者,脑或脊柱MRI上要求病灶≥1cm
* 无放射学疾病证据的华氏巨球蛋白血症(WM)患者,如果具有可测量病灶,即血清单克隆M蛋白≥0.5 g/dL,则符合条件
* 淋巴细胞清除化疗的资格:不存在未控制的、对抗生素、抗病毒药物或抗真菌药物治疗无反应的活性感染(细菌、真菌、病毒、分枝杆菌)
* 淋巴细胞清除化疗的资格:不存在需要持续全身免疫抑制治疗的活性自身免疫性疾病
* 淋巴细胞清除化疗的资格:对于有生育能力的女性,定义为未接受手术绝育或至少1年无月经者,在淋巴细胞清除化疗前2周内血清妊娠试验阴性
* 淋巴细胞清除化疗的资格:在入组与淋巴细胞清除化疗之间未接受任何不同临床试验的研究性药物治疗
* 淋巴细胞清除化疗的资格:血清肌酐 =< 2.5
* 淋巴细胞清除化疗的资格:总胆红素 =< 3.0 mg/dL
* 淋巴细胞清除化疗的资格:AST和ALT =< 正常上限的5倍
* 淋巴细胞清除化疗的资格:肺功能充分,定义为呼吸困难 =< 1级且室内空气下SaO2 >= 92%;如果根据治疗医师的临床判断进行PFTs,FEV1 >= 预测值的50%且DLCO(校正)>= 预测值的40%的患者将符合资格
* 淋巴细胞清除化疗的资格:心脏功能充分,定义为超声心动图或MUGA扫描评估的左心室射血分数(LVEF)>= 50%,或LVEF为45-49%且经心脏病专家许可;如果受试者在入组后接受心脏毒性化疗,需要重复超声心动图或MUGA以重新确定符合资格的LVEF
* 淋巴细胞清除化疗的资格:患者必须具有 >= 60%的Karnofsky体能状态。如果体能状态低是由于活性淋巴瘤,CNS淋巴瘤且KPS >= 50%的患者符合资格
* 淋巴细胞清除化疗的资格:可通过CT、超声或MRI技术准确测量至少一个维度 >= 1.5 cm的可测量疾病;仅通过FDG-PET成像可测量的结外疾病也将被允许;注意,如果进行了切除活检并移除了唯一可测量疾病部位,患者不符合淋巴细胞清除和CAR T细胞输注的资格;可测量疾病可基于筛选期间进行的影像学研究,除非患者在期间接受了治疗,在这种情况下应重复影像学检查。对于CNS淋巴瘤患者,需要脑或脊柱MRI上 >= 1 cm的病灶。无放射学疾病证据的WM患者如果具有可测量疾病,定义为血清IgM水平 >= 0.5g/dL,则符合资格
* 淋巴细胞清除化疗的合格性:患者必须不需要皮质类固醇治疗,或泼尼松剂量低于每日15 mg或等效剂量;为控制疾病而使用的脉冲式皮质类固醇剂量可接受,直至淋巴细胞清除开始前一天
* 淋巴细胞清除化疗的合格性:患者必须没有活动性急性或慢性GVHD
排除标准:
* 需要全身免疫抑制治疗的活动性自身免疫性疾病
* 需要每日泼尼松15 mg或以上或等效剂量皮质类固醇治疗的患者;为控制疾病而使用的脉冲式皮质类固醇剂量可接受
* 人类免疫缺陷病毒(HIV)血清阳性的患者
* 妊娠或哺乳期女性
* 过去6个月内有显著心血管疾病,包括未控制的充血性心力衰竭(>纽约心脏协会[NYHA] II级)、心肌梗死、不稳定型心绞痛或未控制的心律失常
* 对环磷酰胺或氟达拉滨有严重速发型超敏反应史
* 有临床相关非淋巴瘤中枢神经系统病变的病史或存在,包括抗惊厥治疗未控制的癫痫发作(过去一年内>= 1次发作)、瘫痪、失语、卒中、严重脑损伤、痴呆、帕金森病、小脑疾病或精神病
* 入组前4周内在不同临床试验中接受过任何研究性药物治疗,除非患者记录显示对该治疗无反应且入组前已过去至少3个半衰期
* 入组前4周内接受过任何抗CD19或抗CD20抗体或抗体-药物偶联物治疗
* 既往接受过CD19靶向CAR T细胞治疗,且在入组时导致持续性B细胞发育不全;在CD19 CAR T细胞输注后28天或之后任何时间点通过流式细胞术显示正常B细胞恢复(>= 20 B细胞/ul)的患者将被认为CD19 CAR T细胞功能性丧失,可能符合资格
* 有全身性疾病但无CNS受累的放射学证据,且通过流式细胞术可检测到孤立性CSF受累的患者,如果神经系统无症状,则符合入组全身性疾病队列的资格。CSF受累对于作为原发性或继发性CNS淋巴瘤入组的患者不是排除标准。
* 存在活动性急性或慢性移植物抗宿主病(GVHD)
* 未控制的活动性感染(细菌、真菌、病毒、分枝杆菌),对静脉抗生素、抗病毒或抗真菌药物治疗无反应
* 合并已知的其他恶性肿瘤且正在进展和/或需要积极治疗的患者;例外包括皮肤鳞状细胞癌或基底细胞癌以及低级别前列腺癌(Gleason评分 =< 6)。针对乳腺癌或前列腺癌的维持性抗激素治疗是允许的,不视为积极治疗
* 在签署知情同意书A前1周内接受过血液或血小板输注的患者,或血小板 < 50,000/mm^3、中性粒细胞 < 750/mm^3或血红蛋白 < 8.5 g/dL的患者,除非治疗医生认为血细胞减少主要由淋巴瘤骨髓受累所致
Inclusion Criteria:
* Patients must have B-cell non-Hodgkin lymphoma or chronic lymphocytic leukemia/small lymphocytic lymphoma. Eligible lymphoma subtypes include (but not limited to): mantle cell, follicular, lymphoplasmacytic, marginal zone, transformed indolent B cell lymphoma (including transformed chronic lymphoid leukemia \[CLL\]), or diffuse large B cell lymphoma that has relapsed after a response to at least one prior therapy regimen or is refractory to prior therapy; patients with mantle cell lymphoma must have previously been treated with a Bruton tyrosine kinase (BTK) inhibitor and have either had disease progression, intolerance, or exposure to the drug for at least 3 months; patients with CLL/SLL are eligible if they had disease progression or intolerance to BTKis and/or a BCL-2 inhibitors; they are also required to have been treated with the other agent for at least 3 months (i.e. patients with progression/intolerance to BTKi need to be treated with a BCL-2 inhibitor for at least 3 months, and patients with progression/intolerance to BCL-2 inhibitor need at least 3 months of exposure to a BTKi); patients with de novo diffuse large B-cell lymphoma (DLBCL) must meet one of the following criteria:
* Biopsy-proven refractory disease after a frontline regimen containing both an anthracycline and rituximab or other anti-CD20 antibody (i.e. "primary refractory"), where any disease recurring within 6 months of completion of the regimen is considered refractory
* Relapsed or refractory disease after at least one of the following:
* At least 2 lines of therapy (including at least one with an anthracycline and anti-CD20 antibody)
* Autologous stem cell transplant
* Allogeneic stem cell transplant
* Patients with large cell lymphoma transformed from indolent lymphomas are eligible if previously treated with anthracycline containing regimen for either the indolent or large cell histology
* Patients with central nervous system (CNS) lymphoma need to meet one of the following criteria:
* Primary CNS lymphoma:
* Progressive disease after 3 cycles or an inadequate response after at least 4 cycles of a high-dose methotrexate (MTX) containing regimen in the opinion of the treating physician, OR
* Not eligible for MTX therapy due to commodities or tolerance issues per treating physician OR
* Recurrent disease after an initial response to MTX-based treatment
* Secondary CNS lymphoma:
* An inadequate rtesponse to at least 2 cycles of a MTX containing regimen, OR
* Recurrent disease after an initial response to MTX-based treatment
* Patients must be 18 years of age or older, of any gender, race or ethnicity
* Patients must be capable of understanding and providing a written informed consent
* Negative serum pregnancy test within 2 weeks before enrollment for women of childbearing potential, defined as those who have not been surgically sterilized or who have not been free of menses for at least 1 year
* Fertile male and female patients must be willing to use an effective contraceptive method before, during, and for at least 4 months after the CAR T cell infusion
* Patients must have a Karnofsky performance status of \>= 60%
* Confirmation of diagnosis by internal pathology review of initial or subsequent biopsy or other pathologic material at Fred Hutchinson Cancer Research Center (FHCRC)/Seattle Cancer Care Alliance (SCCA)/University of Washington (UW)/Harborview Medical Center (HMC)
* Evidence of CD20 expression by immunohistochemistry or flow cytometry on the tumor specimen obtained with the biopsy performed with screening; if the CD20 expression on the screening tumor biopsy is unclear or could not be assessed due to technical reasons, CD20 expression on a concomitant tumor specimen (such as marrow biopsy or circulating tumor cells) may be used to satisfy this requirement. For CLL and lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (WM) patients, the screening tumor biopsy can we waived for clinical reasons after discussion with the study principal investigator (PI). For patients with CNS lymphoma, a screening tumor biopsy is not required and evidence of CD20 expression can be documented from the original or prior biopsies
* Serum creatinine =\< 2.5
* Total bilirubin =\< 3.0 mg/dL
* Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =\< 5 x the upper limit of normal
* Adequate pulmonary function, defined as =\< grade 1 dyspnea and saturated oxygen (SaO2) \>= 92% on room air; if pulmonary function test (PFT)s are performed based on the clinical judgment of the treating physician, patients with forced expiratory volume in 1 second (FEV1) \>= 50% of predicted and carbon monoxide diffusing capability (DLCO) (corrected) of \>= 40% of predicted will be eligible
* Adequate cardiac function, defined as left ventricular ejection fraction (LVEF) of \>= 50% as assessed by echocardiogram or multigated acquisition (MUGA) scan, or LVEF of 45-49% and clearance by a cardiologist
* Measurable disease that can be accurately measured in at least one dimension as \>= 1.5 cm with computed tomography (CT), ultrasound, or magnetic resonance imaging (MRI) techniques. Extranodal disease that is measurable by fludeoxyglucose F-18 (FDG)-positron emission tomography (PET) imaging only will also be allowed. Note that if an excisional biopsy was performed that removed the sole site of measurable disease, the patient will not be eligible for leukapheresis and generation of CAR T cell product
* For patients with CNS lymphoma, a lesion \>= 1cm on brain or spine MRI is required
* Patients with waldenstrom macroglobulinemia (WM) without radiologic evidence of disease are eligible if they have measurable disease, as defined by serum monoclonal M-spike of \>= 0.5 g/dL
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Absence of uncontrolled active infection (bacterial, fungal, viral, mycobacterial) not responding to treatment with antibiotics, antiviral agents, or antifungal agents
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Absence of active autoimmune disease requiring ongoing systemic immunosuppressive therapy
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Negative serum pregnancy test within 2 weeks before lymphodepletion chemotherapy for women of childbearing potential, defined as those who have not been surgically sterilized or who have not been free of menses for at least 1 year
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: No treatment with any investigational agent on a different clinical trial between enrollment and lymphodepleting chemotherapy
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Serum creatinine =\< 2.5
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Total bilirubin =\< 3.0 mg/dL
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: AST and ALT =\< 5 x the upper limit of normal
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Adequate pulmonary function, defined as =\< grade 1 dyspnea and SaO2 \>= 92% on room air; if PFTs are performed based on the clinical judgment of the treating physician, patients with FEV1 \>= 50% of predicted and DLCO (corrected) of \>= 40% of predicted will be eligible
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Adequate cardiac function, defined as left ventricular ejection fraction (LVEF) of \>= 50% as assessed by echocardiogram or MUGA scan, or LVEF of 45-49% and clearance by a cardiologist; if subject receives cardiotoxic chemotherapy after enrollment, repeat echocardiogram or MUGA is required to reestablish eligible LVEF
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Patients must have a Karnofsky performance status of \>= 60%. Patients with CNS lymphoma with KPS of \>= 50% are eligible if performance status is low because of the active lymphoma
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Measurable disease that can be accurately measured in at least one dimension as \>= 1.5 cm with CT, ultrasound, or MRI techniques; extranodal disease that is measurable by FDG-PET imaging only will also be allowed; note that if an excisional biopsy was performed that removed the sole site of measurable disease, the patient is not be eligible for lymphodepletion and CAR T cell infusion; measurable disease can be based on the imaging study done during the screening unless the patient received treatment in the interim, in which case imaging should be repeated. For patients with CNS lymphoma, a lesion \>= 1 cm on the brain or spine MRI is required. Patients with WM without radiologic evidence of disease are eligible if they have measurable disease, as defined by serum IgM level \>= 0.5g/dL
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Patients must require no corticosteroid therapy or dose of less than 15 mg per day of prednisone or the equivalent; pulsed corticosteroid dose for disease control is acceptable until the day before the start of lymphodepletion
* ELIGIBILITY FOR LYMPHODEPLETION CHEMOTHERAPY: Patients must have no active acute or chronic GVHD
Exclusion Criteria:
* Active autoimmune disease requiring systemic immunosuppressive therapy
* Patients requiring corticosteroid therapy at a dose of 15 mg or more per day of prednisone or the equivalent; pulsed corticosteroid dose for disease control is acceptable
* Patients who are human immunodeficiency virus (HIV) seropositive
* Women who are pregnant or breastfeeding
* Significant cardiovascular diseases within the past 6 months including uncontrolled congestive heart failure (\> New York Heart Association \[NYHA\] class II), myocardial infarction, unstable angina, or uncontrolled arrhythmia
* History of severe immediate hypersensitivity reaction to cyclophosphamide or fludarabine
* History or presence of clinically relevant non-lymphoma central nervous system pathology, including seizures that are uncontrolled on anticonvulsant therapy (\>= 1 seizure in the last year), paresis, aphasia, stroke, severe brain injuries, dementia, Parkinson disease, cerebellar disease, or psychosis
* Treatment with any investigational agent on a different clinical trial within 4 weeks prior to enrollment, unless the patient is documented to be unresponsive to the therapy and at least 3 half-lives have elapsed prior to enrollment
* Treatment with any anti-CD19 or anti-CD20 antibody or antibody-drug conjugate therapy within 4 weeks before enrollment
* Previous treatment with CD19-targeted CAR T cells that has resulted in ongoing B cell aplasia at the time of enrollment; patients that demonstrate recovery of normal B cells (\>= 20 B cells/ul) by flow cytometry at any point 28 days or later after CD19 CAR T cell infusion will be considered to have functional loss of CD19 CAR T cells and are potentially eligible
* Patients with systemic disease without radiologic evidence of CNS involvement and with isolated CSF involvement detectable by flow cytometry are eligible for enrollment in systemic disease cohorts if neurologically asymptomatic. CSF involvement is not an exclusion for patients enrolled as a primary or secondary CNS lymphoma.
* Presence of active acute or chronic graft versus host disease (GVHD)
* Uncontrolled active infection (bacterial, fungal, viral, mycobacterial) not responding to treatment with intravenous antibiotics, antiviral or antifungal agents
* Patients with concurrent known additional malignancy that is progressing and/or requires active treatment; exceptions include squamous or basal cell carcinoma of the skin and low grade prostate carcinoma (Gleason grade =\< 6). Maintenance anti-hormone therapies for breast or prostate cancers are allowed and are not considered active treatment
* Patients with blood or platelet transfusion within 1 week prior to signing Consent A, or with platelets \< 50,000/mm\^3, neutrophils \< 750/mm\^3, or hemoglobin \< 8.5 g/dL, unless the cytopenias are considered by the treating physician to be largely due to marrow involvement by lymphoma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:Dose-limiting Toxicities (DLT) Rate · Will be graded by Common Terminology Criteria for Adverse Events version 4.0. Observed DLT rates will be summarized based on the DLT-Evaluable analysis set. Outcome reported as count of participants in each arm who experienced a DLT. · Up to 28 days
次要终点:Complete Remission;Progression-free Survival (PFS);Overall Survival (OS);Incidence of Adverse Events
患者接受白细胞分离术,如有需要,之后可接受治疗以控制疾病。随后患者接受cyclophosphamide IV。患者也可能接受fludarabine IV。36-96小时后,患者接受CD20特异性CAR T细胞IV输注,持续20-30分钟。
本研究的目的是寻找基因修饰T细胞的最佳剂量,研究该疗法的安全性,并观察其在治疗复发或对既往治疗无反应的B细胞非霍奇金淋巴瘤患者中的疗效。
The purpose of this research is to find the best dose of genetically modified T-cells, to study the safety of this treatment, and to see how well it works in treating patients with B cell non-Hodgkin lymphoma that has come back (relapsed) or did not respond to previous treatment (refractory).
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