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:Dasatinib and Quercetin With CAR-T Therapy for the Treatment of Patients With Relapsed or Refractory Multiple Myeloma
这是一项 II 期注册临床试验,评估细胞治疗用于多发性骨髓瘤的安全性、可行性及初步疗效。当前状态:招募中。计划入组 44 例。试验地点:美国 · 罗切斯特(共 1 个中心)。登记号:NCT06940297。
不限性别 · ≥ 18 Years
纳入标准: * 年龄≥18岁。 * 复发或难治性多发性骨髓瘤,既往至少接受过3线治疗,其中包括蛋白酶体抑制剂、免疫调节药物(IMiD)和抗CD38单克隆抗体(mAb)。 * 患者可获得西达基奥仑赛(Carvykti)。 * 东部肿瘤协作组(ECOG)体能状态(PS)评分为0、1或2。 * 预期寿命≥12周。 * 血红蛋白≥8.0 g/dL(注册前≤14天检测)。 * 中性粒细胞绝对计数(ANC)≥1,000/mm^3(注册前≤14天检测)。 * 血小板计数≥50,000/mm^3(注册前≤14天检测)。 * 总胆红素≤正常值上限(ULN)的1.5倍(注册前≤14天检测)。 * 注:Gilbert综合征患者总胆红素须≤ULN的3倍(注册前≤14天检测)。 * 丙氨酸氨基转移酶(ALT)和天冬氨酸氨基转移酶(AST)≤ULN的2倍(注册前≤14天检测)。 * 碱性磷酸酶≤ULN的1.5倍(注册前≤14天检测)。 * 按Cockcroft–Gault公式计算的肌酐清除率≥30 mL/min(注册前≤14天检测)。 * 仅有生育能力者须在注册前≤7天进行妊娠试验且结果为阴性。 * 注:尿液妊娠试验阳性或无法确认阴性时,须进行血清妊娠试验。 * 有性生活的患者及其伴侣须在入组前、研究参与期间以及末次研究药物给药后至少30天,采用失败率低的有效避孕方法。 * 提供书面知情同意。 * 愿意提供研究相关性分析所必需的血液和骨髓样本。 * 愿意提供研究相关性分析所必需的骨髓芯针标本和/或组织标本。 * 愿意在随访期间(研究主动监测阶段)返回入组机构。 排除标准: * 意义未明的单克隆丙种球蛋白病、冒烟型多发性骨髓瘤或AL淀粉样变。 * 无论距末次治疗间隔多久,既往治疗的急性、可逆性影响尚未恢复。 * 例外:既往治疗结束后至少1个月保持稳定的1级周围(感觉)神经病变。 * 由于本研究涉及的药物已知具有遗传毒性、致突变性和致畸性,以下人员不得参加: * 妊娠者。 * 哺乳者。 * 不愿采取充分避孕措施的有生育能力者(以及能够使他人受孕者)。 * 注册前≤28天接受过重大手术。 * 合并全身性疾病或其他严重并发疾病,研究者判断其不适合参加本研究,或会显著妨碍对规定方案安全性和毒性的适当评估。 * 免疫功能低下者及已知HIV阳性者。 * 注:已知HIV阳性但无免疫功能低下临床证据,或目前接受抗逆转录病毒治疗且HIV控制良好者,可参加本试验。 * 有心血管疾病风险证据,定义为符合以下任一项: * 存在当前具有临床意义且未控制的心律失常,包括具有临床意义的心电图异常,如二度(Mobitz II型)或三度房室(AV)传导阻滞。 * 筛选前3个月内有心肌梗死、急性冠脉综合征(包括不稳定型心绞痛)、冠状动脉血管成形术、支架置入或搭桥术史。 * 按纽约心脏协会心功能分级为III级或IV级心力衰竭。 * 未控制的高血压。 * 有危及生命的室性心律失常史。 * 未控制的并发疾病,包括但不限于: * 持续或活动性感染。 * 任何会使参加研究造成不当风险的医疗状况。 * 正接受任何其他被认为用于治疗原发肿瘤的研究药物。 * 注册前≤6周接种过活疫苗。 * 注册前≤14天服用过CYP3A4/5强效抑制剂或诱导剂,包括葡萄柚、圣约翰草或相关产品。 * 注:如有需要,患者可短期使用强效抑制剂或诱导剂治疗症状,但须按指示调整达沙替尼剂量。 * 已知对达沙替尼或槲皮素过敏或超敏。 * 正在接受治疗剂量抗凝药物(如华法林、肝素、低分子肝素、Xa因子抑制剂等)。 * 正在使用抗血小板药物(如全剂量阿司匹林、氯吡格雷等)。 * 注:如为心脏保护所必需,可使用小剂量阿司匹林。 * 注册前≤10天正在使用喹诺酮类抗生素治疗或预防感染。
Inclusion Criteria: * Age ≥ 18 years * Relapsed or refractory multiple myeloma who has had at least 3 prior lines of therapies including a proteasome inhibitor, immunomodulatory drug (IMiD) and anti-CD38 monoclonal antibody (mAb) * Ciltacabtagene autoleucel (Carvykti) available for patient * Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1 or 2 * Life expectancy ≥ 12 weeks * Hemoglobin ≥ 8.0 g/dL (obtained ≤ 14 days prior to registration) * Absolute neutrophil count (ANC) ≥ 1,000/mm\^3 (obtained ≤ 14 days prior to registration) * Platelet count ≥ 50,000/mm\^3 (obtained ≤ 14 days prior to registration) * Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (obtained ≤ 14 days prior to registration) * Note: Patients with Gilbert's syndrome must have a total bilirubin of ≤ 3 x ULN (obtained ≤ 14 days prior to registration) * Alanine aminotransferase (ALT) and aspartate transaminase (AST) ≤ 2 x ULN (obtained ≤ 14 days prior to registration) * Alkaline phosphatase ≤ 1.5 x ULN (obtained ≤ 14 days prior to registration) * Calculated creatinine clearance ≥ 30 ml/min using the Cockcroft-Gault formula (obtained ≤ 14 days prior to registration) * Negative pregnancy test done ≤ 7 days prior to registration, for persons of childbearing potential only * Note: If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required * Sexually active patients and their partners must use an effective method of contraception associated with a low failure rate prior to study entry and for the duration of study participation and for at least 30 days after the last dose of study drug * Provide written informed consent * Willingness to provide mandatory blood and bone marrow specimens for correlative research * Willingness to provide mandatory bone marrow cores and/or tissue specimens for correlative research * Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Exclusion Criteria: * Monoclonal gammopathy of undetermined significance, smoldering multiple myeloma, or AL amyloidosis * Failure to recover from acute, reversible effects of prior therapy regardless of interval since last treatment. * EXCEPTION: Grade 1 peripheral (sensory) neuropathy that has been stable for at least 1 month since completion of prior treatment * Any of the following because this study involves an agent that has known genotoxic, mutagenic, and teratogenic effects: * Pregnant persons * Nursing persons * Persons of childbearing potential (and persons able to father a child) who are unwilling to employ adequate contraception * Major surgery ≤ 28 days prior to registration * Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens * Immunocompromised patients and patients known to be HIV positive. * NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, or those currently receiving antiretroviral therapy with good control of HIV, are eligible for this trial * Evidence of cardiovascular disease risk, as defined by any of the following: * Evidence of current clinically significant uncontrolled arrhythmias, including clinically significant ECG abnormalities such as 2nd degree (Mobitz Type II) or 3rd degree atrioventricular (AV) block * History of myocardial infarction, acute coronary syndromes (including unstable angina), coronary angioplasty, or stenting or bypass grafting within three (3) months of screening. * Class III or IV heart failure as defined by the New York Heart Association functional classification system * Uncontrolled hypertension * History of life-threatening ventricular arrhythmias * Uncontrolled intercurrent illness including, but not limited to: * Ongoing or active infection * Any medical condition that would make participation unduly hazardous * Receiving any other investigational agent which would be considered as a treatment for the primary neoplasm * Live vaccine ≤ 6 weeks prior to registration * Has taken a strong inhibitor or inducer of CYP3A4/5, including grapefruit, St. John's Wort or related products ≤ 14 days prior to registration. * Note: If required, patients may receive a short course of strong inhibitors or inducers for treatment of symptoms, but dasatinib dose must be adjusted as indicated * Known hypersensitivity or allergy to dasatinib or quercetin * Patients on therapeutic doses of anticoagulants (e.g. warfarin, heparin, low molecular weight heparin, factor Xa inhibitors, etc). * On antiplatelet agents (e.g. full dose aspirin, clopidogrel etc.) * NOTE: Baby aspirin, if necessary for cardioprotection, will be allowed * On quinolone antibiotic therapy for treatment or for prevention of infections products ≤10 days prior to registration
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:Minimal residual disease (MRD) negativity rate · Defined as the number of patients who are able to achieve undetectable MRD based on bone marrow (BM) and positron emission tomography (PET) evaluations. · At 3 months
次要终点:Overall response rate (ORR);Depth of response;Progression free survival (PFS);Duration of response;Incidence of adverse events (AEs)
患者在第-7天和第-6天每日口服达沙替尼一次(QD)、每日口服槲皮素两次(BID);在第-5至-3天静脉输注环磷酰胺(输注60分钟)和氟达拉滨(输注30分钟)。如无疾病进展或不可接受的毒性,患者随后于第0天静脉输注CAR-T。患者于第28、29、58、59、88和89天每日口服达沙替尼一次并每日口服槲皮素两次;如无疾病进展或不可接受的毒性则继续给药。整个研究期间,患者接受CT和/或PET扫描、肿瘤活检、骨髓穿刺及活检,并采集血液样本。
这项II期试验旨在评估达沙替尼和槲皮素联合环磷酰胺、氟达拉滨及嵌合抗原受体(CAR)T细胞疗法,治疗缓解后复发或既往治疗无效的多发性骨髓瘤患者的效果。达沙替尼属于酪氨酸激酶抑制剂,可阻断一种促使癌细胞增殖的异常蛋白的作用,可能有助于抑制癌细胞生长。槲皮素是一种植物化合物,可能预防多发性骨髓瘤形成。环磷酰胺和氟达拉滨等化疗药物有助于杀灭体内残留癌细胞,并为CAR-T治疗做好骨髓准备。嵌合抗原受体T细胞疗法是将患者的T细胞(免疫系统细胞)在实验室中改造,使其能够攻击癌细胞。研究人员从患者血液中采集T细胞,在实验室中将可结合患者癌细胞特定蛋白的特殊受体基因导入T细胞;这种受体称为嵌合抗原受体。随后在实验室中扩增大量CAR-T细胞,并通过输注给予患者,用于治疗某些癌症。达沙替尼和槲皮素联合环磷酰胺、氟达拉滨及CAR-T细胞疗法,可能杀灭更多复发或难治性多发性骨髓瘤患者的癌细胞。
This phase II trial tests how well giving dasatinib and quercetin with cyclophosphamide, fludarabine and chimeric antigen receptor (CAR)-T cell therapy works in treating patients with multiple myeloma that has come back after a period of improvement (relapsed) or that has not responded to previous treatment (refractory). Dasatinib is in a class of medications called tyrosine kinase inhibitors. It works by blocking the action of an abnormal protein that signals cancer cells to multiply, which may help keep cancer cells from growing. Quercetin is a compound found in plants that may prevent multiple myeloma from forming. Chemotherapy such as cyclophosphamide and fludarabine are given to help kill any remaining cancer cells in the body and to prepare the bone marrow for CAR-T therapy. Chimeric antigen receptor T-cell Therapy is a type of treatment in which a patient's T cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells. T cells are taken from a patient's blood. Then the gene for a special receptor that binds to a certain protein on the patient's cancer cells is added to the T cells in the laboratory. The special receptor is called a chimeric antigen receptor. Large numbers of the CAR T cells are grown in the laboratory and given to the patient by infusion for treatment of certain cancers. Giving dasatinib and quercetin with cyclophosphamide, fludarabine and CAR-T cell therapy may kill more cancer cells in patients with relapsed or refractory multiple myeloma.
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