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.
肿瘤细胞治疗研究
英文原题:Local Manufacture of CAR T-Cell Products for the Treatment of B-Cell Lymphoma and B-Acute Lymphoblastic Leukemia
Local Manufacture of CAR T-Cell Products for the Treatment of B-Cell Lymphoma and B-Acute Lymphoblastic Leukemia
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⚠ 该试验的登记信息已有 21 个月未更新, 页面上显示的「招募中」可能已经失效。联系研究中心之前,建议先到 ClinicalTrials.gov 核对登记原文的最新状态与联系方式。
这是一项 II 期注册临床试验,评估自体 CAR-T 细胞治疗 B 细胞淋巴瘤、急性淋巴细胞白血病、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:招募中。计划入组 30 例。试验地点:美国 · 匹兹堡(共 1 个中心)。登记号:NCT05281809。
不限性别 · ≥ 18 Years 且 ≤ 79 Years
纳入标准: 1. 受试者为CD19+ B细胞淋巴瘤或B细胞急性淋巴细胞白血病(B-ALL),目前无可用治愈性治疗选择(如自体或异基因造血干细胞移植(HSCT)),预后有限(预计生存期<2年)者将入组。允许参与本试验作为HSCT的桥接。 2. 流式细胞术检测外周血CD3计数> 200/µL。请注意,作为标准实践,该检测可能需要多次重复以优化采集效率。 3. 受试者诊断为弥漫性大B细胞淋巴瘤(DLBCL)、滤泡性淋巴瘤(FL)、套细胞淋巴瘤(MCL)、CLL、边缘区淋巴瘤(MZL)、淋巴浆细胞性淋巴瘤(LPL)或B-ALL,且淋巴瘤患者至少失败2线治疗,B-ALL患者失败1线治疗,或对一线治疗难治(无缓解或疾病进展)。一线治疗必须包括常规(免疫)化疗(例如淋巴瘤患者使用利妥昔单抗、环磷酰胺、多柔比星和泼尼松(R-CHOP)或苯达莫司汀联合利妥昔单抗(BR))至少2个周期。第二线或以上治疗必须至少给药2个周期。单药抗CD20单克隆抗体(例如利妥昔单抗、奥妥珠单抗)在本标准中不视为一线治疗。一线治疗的定义依据国家综合癌症网络(NCCN)指南相关章节中推荐的一线和二线治疗方案。资格判定将使用最新版指南。在极不可能的情况下,若受试者接受了最新版指南中不再列出、但在该治疗给药时有效的指南版本中曾列出的的一线或二线方案,则该受试者将被视为已接受过一线治疗。 4. 具有转化性惰性淋巴瘤(FL、CLL、MZL或LPL)病理和临床证据的受试者,若已针对转化性疾病接受至少一线治疗至少2个周期,无论缓解情况如何,均有资格参与本试验。 5. 在既往治疗过程中的任何时间,通过免疫组织化学或流式细胞术在淋巴瘤或ALL细胞病理标本上证实CD19表达。 6. 无法接受市售CD19-CAR-T 细胞治疗的受试者。 7. 淋巴瘤患者必须具有可测量或可评估的疾病。无疾病证据的完全缓解患者不符合资格。 8. B-ALL患者必须在至少相隔2周的两次独立场合中至少有可测量可检测的疾病才有资格。 9. 在自体或异基因HSCT后超过100天复发的受试者符合参加本试验的条件。异基因HSCT受者必须在进行白细胞分离术前至少停用所有免疫抑制治疗4周,并且没有活动性急性和慢性移植物抗宿主病(GVHD)。 10. 受试者年龄将≥ 18岁且< 80岁。 11. 有生育能力的女性受试者必须尿妊娠试验或血清妊娠试验阴性,并且如果有性活动,必须使用可接受的避孕方法,包括禁欲、屏障法(子宫帽或避孕套)、Depo-Provera或口服避孕药。应在CAR-T 细胞输注后继续积极避孕至少一年。 12. 男性参与者必须愿意从入组本研究时起至接受预处理方案后6个月内实行节育。 13. 通过MUGA(多门控采集)或超声心动图测得的心脏射血分数≥ 0.45。 14. 无需补充氧气且静息时无呼吸困难。DLCO(肺一氧化碳弥散量)和FEV(用力呼气量)1 ≥ 预测值的0.65。 15. Karnofsky体能状态评分≥ 70。 16. 受试者的预期生存期必须> 12周。 17. 受试者必须能够理解本临床试验中使用的风险和方法,并独立同意参与。 18. 受试者必须同意将数据匿名报告至CIBMTR(国际血液和骨髓移植研究中心)。 排除标准: 1. 感染HIV(人类免疫缺陷病毒)且有活动性病毒复制。ART(抗逆转录病毒治疗)下病毒载量检测不到的患者可考虑参加本方案。 2. 感染乙型肝炎且有活动性病毒复制。 3. 感染丙型肝炎且有活动性病毒复制。 4. 活动性未经治疗的中枢神经系统(CNS)白血病或淋巴瘤。如果CNS疾病无活动,接受过治疗的CNS软脑膜或实质病变患者可能符合条件。脑脊液(CSF)必须在至少相隔4周的两次独立检查中均清晰。脑部影像学必须在至少相隔4周的两次独立检查中均显示无疾病进展证据。 5. 活动性细菌、真菌或病毒感染。 6. 需要积极治疗的并发第二恶性肿瘤。激素治疗下稳定的乳腺癌或前列腺癌患者,如果其他方面未受损,可考虑参加。 7. 参加研究前6个月内有记录的心肌梗死和/或有症状的冠状动脉或瓣膜疾病或未控制的心律失常。 8. 白细胞分离术前30天内使用研究性药物。 9. 在白细胞分离术前4周内接受过抗癌治疗,包括抗CD19导向治疗、单克隆抗体治疗、双特异性T细胞衔接器治疗以及靶向治疗,如Abelson酪氨酸激酶抑制剂、Bruton酪氨酸激酶抑制剂、venetoclax和Lenalidomide或其他IMiD(免疫调节药物)。 10. 如果受累野放疗在白细胞分离术前至少15天结束且相关毒性为2级或以下,则允许进行。白细胞分离术前14天内的放疗将使受试者不符合资格。 11. 白细胞分离术前4周内接受过检查点抑制剂治疗。 12. 白细胞分离术前4周内接受过药理剂量(> 10 mg泼尼松或生物等效剂量)的皮质类固醇治疗。 13. 根据处方医生的判断,在白细胞分离术前4周内无法停止的免疫抑制治疗。 14. 提示临床显著血液学、肝胆或肾脏疾病的实验室异常: AST(天冬氨酸转氨酶)/SGOT(血清谷草转氨酶)> 正常上限的2.0倍 ALT(丙氨酸氨基转移酶)/SGPT(血清谷丙转氨酶)> 正常上限的2.0倍 总胆红素> 正常上限的2.0倍,除非受试者患有Gilbert综合征(>正常上限的3.0倍)血红蛋白< 8 gm/dL或依赖输血维持≥ 8 gm/dL 白细胞计数< 2,000/mm3 血小板计数< 50,000/mm3或依赖输血维持≥ 50,000 mm 肌酐> 正常上限的2.0倍或计算肌酐清除率≤ 40 mL/min。 15. 妊娠或哺乳期女性。 16. 研究者认为将不遵守研究时间表或程序的受试者。 17. 属于弱势群体的受试者,如无家可归者、发育障碍者和囚犯,或具有任何损害其提供知情同意或遵守研究时间表或程序能力的状况。
Inclusion Criteria:
1. Subjects with CD19+ B-cell lymphoma or B-Cell Acute Lymphoblastic Leukemia (B-ALL) with no currently available curative treatment option (such as autologous or allogeneic Hematopoietic stem cell transplantation (HSCT)) who have a limited prognosis (\<2-year projected survival) will be enrolled. Participation on this trial is permitted as a bridge to HSCT.
2. Peripheral blood CD3 count \> 200/µL by flow cytometry. Please note that this test might need to be repeated multiple times as standard practice to optimize collection efficiency.
3. Subjects will have a diagnosis of Diffuse Large B Cell Lymphoma (DLBCL), Follicular Lymphoma (FL), Mantle Cell Lymphoma (MCL), CLL, Marginal Zone Lymphoma (MZL), Lymphoplasmacytic Lymphoma (LPL) or B-ALL and will have failed at least 2 lines of therapy in the case of lymphoma and one line if the diagnosis is B-ALL or be refractory (no response or progressive disease) to first line therapy. A line of therapy must include conventional (immuno) chemotherapy (e.g. rituximab, cyclophosphamide, doxorubicin, and prednisone (R-CHOP) or Bendamustine plus Rituximab (BR) in the case of lymphoma) administered for at least 2 cycles. Second or greater lines of therapy must be administered for at least two cycles. Single agent anti-CD20 monoclonal antibody (e.g. rituximab, obinutuzumab) is not considered for the purposes of these criteria to count as a line of therapy. The definition of a line of therapy is taken according to recommended regimens for first and second line therapy in the relevant sections of the National Comprehensive Cancer Network (NCCN) guidelines. The most recent version of the guidelines will be used for eligibility determination. In the unlikely event that a subject received a first or second line regimen no longer listed in the most recent guidelines, but previously present in the version of the guidelines active at the time the therapy was administered, then the subject would be deemed to have received a line of therapy.
4. Subjects with pathological and clinical evidence of transformed indolent lymphoma (FL, CLL, MZL or LPL) are eligible for participation on this trial if they have received at least one line of therapy for transformed disease for at least two cycles regardless of response.
5. Demonstration of CD19 expression by immunohistochemistry or flow cytometry on a pathological specimen of lymphoma or ALL cells at any time in the course of prior treatment.
6. Subjects who are unable to receive commercially available CD19-CAR T-cell therapy.
7. Patients with lymphoma must have measurable or assessable disease. Patients in complete remission with no evidence of disease are not eligible.
8. Patients with B-ALL must have at least measurable detectable disease on two separate occasions at least 2 weeks apart to be eligible.
9. Subjects who relapse at \> 100 days after autologous or allogeneic HSCT are eligible for participation on this trial. Allogeneic HSCT recipients must be off all immunosuppression for a minimum of 4 weeks before leukapheresis is performed and be free of active acute and chronic Graft Versus Host Disease (GVHD).
10. Subjects will be ≥ 18 and \< 80 years of age.
11. Female subjects of childbearing potential must have a negative urine or serum pregnancy test and if sexually active must use an acceptable method of contraception, including abstinence, a barrier method (diaphragm or condom), Depo-Provera, or an oral contraceptive. Active contraception should continue for at least one year after CAR T-cell infusion.
12. Male participants must be willing to practice birth control from the time of enrollment on this study and for 6 months after receiving the preparative regimen.
13. Cardiac ejection fraction ≥ 0.45 by MUGA (multigated acquisition) or echocardiography.
14. No requirement for supplemental oxygen and no dyspnea at rest. DLCO (diffusing capacity of the lungs for carbon monoxide) and FEV (forced expiratory volume)1 ≥ 0.65 of predicted.
15. Karnofsky performance score ≥ 70.
16. Subjects must have an expected survival \> 12 weeks.
17. Subjects must be able to comprehend the risks and methods used in this clinical trial and independently consent to participate.
18. Subjects must consent to anonymous reporting of data to the CIBMTR (Center for International Blood and Marrow Transplant Research).
Exclusion Criteria:
1. Infection with HIV (human immunodeficiency virus) and active viral replication. Patients with an undetectable viral load on ART (antiretroviral treatment) can be considered for participation on this protocol.
2. Infection with hepatitis B and active viral replication.
3. Infection with hepatitis C and active viral replication.
4. Active untreated CNS (central nervous system) leukemia or lymphoma. Patients with treated CNS leptomeningeal or parenchymal disease might be eligible if the CNS disease is inactive. The CSF (cerebrospinal fluid) must be clear on two separate occasions at least 4 weeks apart. Brain imaging must demonstrate no evidence of progressive disease on two separate occasions at least 4 weeks apart.
5. Active bacterial, fungal or viral infection.
6. Concurrent second malignancy requiring active therapy. Patients with breast or prostate cancer stable on hormonal therapy might be considered for participation if otherwise unimpaired.
7. Documented myocardial infarction within 6 months of study participation and/or symptomatic coronary artery or valvular disease or uncontrolled arrhythmia.
8. Investigational drug use within 30 days before leukapheresis.
9. Anti-cancer therapy administration within 4 weeks of leukapheresis including antiCD19 directed therapy, monoclonal antibody therapy, bi-specific T-cell engager therapy and targeted therapy such as Abelson tyrosine kinase inhibitors, Bruton's tyrosine kinase inhibitors, venetoclax and Lenalidomide or other IMiD (Immunomodulatory Drug).
10. Involved field radiation therapy is permitted if it terminates at least 15 days before leukapheresis and associated toxicity is grade 2 or less. Radiation therapy within 14 days of leukapheresis would make the subject ineligible.
11. Checkpoint inhibitor therapy within 4 weeks before leukapheresis.
12. Corticosteroid therapy at pharmacological dose (\> 10 mg of prednisone or biological equivalent) within 4 weeks before leukapheresis.
13. Immunosuppressive therapy that cannot be stopped for 4 weeks prior to leukapheresis as deemed by the prescribing physician.
14. Laboratory abnormalities that indicate clinically significant hematological, hepatobiliary, or renal disease:
AST (Aspartate transaminase)/SGOT(serum glutamic-oxaloacetic transaminase) \> 2.0 times the upper limit of normal ALT (alanine aminotransferase)/SGPT (serum glutamic-pyruvic transaminase) \> 2.0 times the upper limit of normal Total bilirubin \> 2.0 times the upper limit of normal, unless subject has Gilbert's Syndrome (\>3.0 times the upper limit of normal) Hemoglobin \< 8 gm/dL or dependent upon transfusion to maintain ≥ 8 gm/dL White blood cell count \< 2,000/mm3 Platelet count \< 50,000/mm3 or dependent upon transfusion to maintain ≥ 50,000 mm Creatinine \> 2.0 times the upper limit of normal or calculated creatinine clearance ≤ 40 mL/min.
15. Pregnant or lactating females.
16. Subjects who, in the opinion of the Investigator, will be non-compliant with study schedules or procedures.
17. Subjects who belong to a vulnerable population such as the homeless, the developmentally disabled and prisoners or have any condition that impairs their ability to provide informed consent or comply with study schedules or procedures.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:Successful local CAR T-cell manufacturing · To demonstrate the feasibility of reliably producing CD19-targeted CAR T-cells at our site using the Prodigy device. · 48 months;Safety of administration · To demonstrate the safety of administering the manufactured product to subjects as measured by adverse events. · 15 years;Safety of administration · Cytokine Release Syndrome score · 30 days;Safety of administration · Immune Effector Cell Associated Neurotoxicity Syndrome Grading for Adults (score) - A score of 10 represents no impairment, 7-9 grade 1 ICANS, 3-6 grade 2 ICANS, and 0-2 grade 3 ICANS. A score of 0 due to patient being unarousable and unable to perform assessment corresponds to grade 4 ICANS. · 30 days;Safety of administration · Immune Effector Cell Associated Encephalopathy Score - A score of 10 represents no impairment, 7-9 grade 1 ICANS, 3-6 grade 2 ICANS, and 0-2 grade 3 ICANS. A score of 0 due to patient being unarousable and unable to perform assessment corresponds to grade 4 ICANS. · 30 days
次要终点:Response to therapy;Response to therapy;CAR T-cell kinetics
CAR-T 细胞采集、输注
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本试验旨在证明该方法能够可靠地生产产品,并安全地将产品施用于患有B细胞淋巴瘤和B急性淋巴细胞白血病的患者。
This trial aims to demonstrate the feasibility of this approach to reliably generate product and to safely administer the product to patients who have B-Cell Lymphoma and B-Acute Lymphoblastic Leukemia.
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