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:IL13Ra2-CAR T Cells With or Without Nivolumab and Ipilimumab in Treating Patients With GBM
这是一项 I 期注册临床试验,评估自体细胞治疗用于胶质母细胞瘤的安全性、可行性及初步疗效。当前状态:进行中(不再招募)。计划入组 20 例。试验地点:美国 · 杜阿尔特(共 1 个中心)。登记号:NCT04003649。
不限性别 · ≥ 18 Years
知情同意及参与意愿: 1. 参与者和/或法定授权代表已签署知情同意书;如适用,应按机构指南取得受试者同意(assent)。 2. 同意使用诊断性肿瘤活检的存档组织。如无可用组织,经研究主要研究者(PI)批准可例外。 年龄及体能状态: 3. 年龄≥18岁。 4. Karnofsky体能状态评分≥60%,ECOG评分≤2。 5. 预期寿命≥4周。 疾病特征及相关标准: 6. 组织学确诊WHO IV级胶质母细胞瘤;或既往组织学确诊II级或III级胶质瘤,完成标准治疗后现有影像学进展符合IV级胶质母细胞瘤。 7. 复发/难治性疾病:接受标准治疗后且一线放疗完成至少12周后,影像学证实可测量病灶复发/进展。 8. 希望之城(COH)临床病理部门通过免疫组化确认初诊或复发肿瘤表达IL13Rα2(H评分>50;参见附录B)。 9. 有充血性心力衰竭(CHF)病史,或方案治疗第1天前6个月内出现符合NYHA III–IV级的心脏症状、心肌病、心肌炎、心肌梗死,曾接触心脏毒性药物,或临床病史提示上述情况者,须在登记前42天内及治疗期间按临床指征进行心电图(EKG)和超声心动图(ECHO)检查。 临床实验室及器官功能标准(除另有说明,须在白细胞单采前14天内检查): 10. WBC>2,000/dL,或ANC≥1,000/mm³。 11. 血小板≥75,000/mm³。 12. 空腹血糖在正常值上限(ULN)范围内。 13. 总胆红素≤ULN的1.5倍。 14. AST≤ULN的2.5倍。 15. ALT≤ULN的2.5倍。 16. 血清肌酐≤1.6 mg/dL。 17. 室内空气下血氧饱和度≥95%。 18. HIV抗原/抗体联合检测、丙肝抗体、活动性乙肝(表面抗原阴性)及甲肝IgM抗体检测均为血清学阴性。若丙肝抗体阳性,须定量检测HCV RNA。 19. 有生育能力女性(WOCBP)尿或血清妊娠试验阴性;若尿试验阳性或无法进行……(原登记标准内容未完整)。 20. 有生育能力的女性和男性须同意在研究期间采取有效避孕措施,直至纳武利尤单抗末次给药后至少5个月和/或CAR T细胞末次疗程后至少3个月;以较晚者为准。 排除标准: 既往及合并治疗: 1. 既往接受CTLA-4、PD-1或PD-L1抑制剂治疗。 2. 依赖类固醇,入组时每天需要地塞米松>6 mg。 3. 既往治疗毒性尚未恢复。 其他疾病或状况: 4. 有自身免疫性疾病史或存在活动性自身免疫性疾病。 5. 癫痫发作未控制和/或有临床表现的进行性脑病。 6. 曾对与研究药物化学或生物组成相似的化合物发生过敏反应。 7. 活动性腹泻。 8. 具有临床意义且未控制的疾病。 9. 活动性感染且需要抗生素治疗。 10. 已知HIV、乙肝或丙肝感染史。 11. 其他活动性恶性肿瘤。 12. 仅限女性:妊娠或哺乳。 13. 研究者判断,任何其他状况因研究程序相关安全问题而构成参加临床研究的禁忌。 依从性: 14. 研究者认为可能无法遵守全部研究程序(包括可行性/后勤方面的依从问题)的潜在参与者。
Inclusion Criteria Informed Consent and Willingness to Participate * 1\. Documented informed consent of the participant and/or legally authorized representative. Assent, when appropriate, will be obtained per institutional guidelines. * 2\. Agreement to allow the use of archival tissue from diagnostic tumor biopsies. If unavailable, exceptions may be granted with Study PI approval. Age Criteria, Performance status * 3\. Ages ≥18 years * 4\. KPS ≥ 60%, ECOG ≤ 2 * 5\. Life expectancy ≥ 4 weeks Nature of Illness and Illness Related Criteria * 6\. Histologically confirmed diagnosis of WHO classification grade IV GBM, or has a prior histologicallyconfirmed diagnosis of a grade II or III glioma and now has radiographic progression consistent with a grade IV GBM after completing standard therapy. * 7\. Relapsed/refractory disease: radiographic evidence of recurrence/progression of measurable disease after standard therapy, and ≥ 12 weeks after completion of front-line radiation therapy. * 8\. COH Clinical Pathology confirms IL13Rα2+ tumor expression by IHC at the initial tumor presentation or recurrent disease (H-score \> 50; reference Appendix B) * 9\. Participants with a known history of congestive heart failure (CHF) or cardiac symptoms consistent with NYHA classification III-IV within 6 months prior to Day 1 of protocol treatment, cardiomyopathy, myocarditis, Myocardial Infarction (MI), exposure to cardiotoxic medications or with clinical history suggestive of the above must have an EKG and Echocardiogram (ECHO) performed within 42 days prior to registration and as clinically indicated while on treatment. Clinical Laboratory and Organ Function Criteria (To be performed within 14 days prior to leukapheresis unless otherwise stated. * 10\. WBC \> 2000 /dl (or ANC ≥ 1,000/mm3) * 11\. Platelets ≥ 75,000/mm3 * 12\. Fasting Blood glucose within ULN * 13\. Total bilirubin ≤ 1.5 ULN * 14\. AST ≤ 2.5x ULN * 15\. ALT ≤ 2.5x ULN * 16\. Serum creatinine ≤1.6 mg/dL * 17\. O2 saturation ≥ 95% on room air * 18\. Seronegative for HIV Ag/Ab combo, Hepatitis C Ab\*, active HBV (Surface Antigen Negative), Hepatitis A Virus IgM Antibody \*If positive, Hepatitis C RNA quantitation must be performed. * 19\. Women of childbearing potential (WOCBP): negative urine or serum pregnancy test If the urine test is positive or cannot be * 20\. Agreement by females and males of childbearing potential\* to use an effective method of birth control or abstain from heterosexual activity for the course of the study through at least 5 months after the last dose of nivolumab and/or 3 months after the last cycle of CAR T cells. Exclusion Criteria Prior and concomitant therapies * 1\. Prior CTLA-4, PD-1 or PD-L1 inhibitor therapy. * 2\. Participant is steroid-dependent, requiring more than 6 mg of dexamethasone per day at the time of enrollment. * 3\. Participant has not yet recovered from toxicities of prior therapy. Other illnesses or conditions * 4\. History of or active autoimmune disease * 5\. Uncontrolled seizure activity and/or clinically evident progressive encephalopathy * 6\. History of allergic reactions attributed to compounds of similar chemical or biologic composition to study agent * 7\. Active diarrhea * 8\. Clinically significant uncontrolled illness * 9\. Active infection requiring antibiotics * 10\. Known history of immunodeficiency virus (HIV) or hepatitis B or hepatitis C infection * 11\. Other active malignancy * 12\. Females only: Pregnant or breastfeeding * 13\. Any other condition that would, in the Investigator's judgment, contraindicate the subject's participation in the clinical study due to safety concerns with clinical study procedures. Noncompliance * 14\. Prospective participants who, in the opinion of the Investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics).
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:Incidence of adverse events · Will assess dose limiting toxicity and all toxicities. Toxicity is the primary endpoint and will be assessed using the National Cancer Institute (NCI)'s Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Rates and associated 95% Clopper and Pearson binomial confidence limits (95% confidence interval \[CI\]) will be estimated for participants' experiencing dose limiting toxicity (DLT) during neoadjuvant treatment period (DLT period 1), during adjuvant treatment period (DLT period 2), neo-adjuvant and adjuvant feasibility, as well as survival at 9 months. All toxicities and side effects will be summarized in tables by dose, time period, organ, and severity. · Up to 15 years;Dose-limiting toxicity (DLT) · A toxicity that causes side effects that are serious enough to prevent an increase in dose or level of that treatment. · Up to 28 days;Feasibility (neoadjuvant therapy) · As measured by the ability of patients receive ipilimumab/nivolumab (\> 80% of the assigned doses) and undergo undergo surgery so that they can go on to receive the first dose of CAR T cells. · Up to 14 days;Feasibility (adjuvant therapy) · Defined as the ability of patients to complete 4 cycles of CAR T infusions (\> 80% of the assigned dose) and 2 doses of nivolumab. · Up to 28 days;Overall Survival · The length of time from either the date of diagnosis or the start of treatment for a disease, such as cancer, that patients diagnosed with the disease are still alive. · At 9 months
次要终点:T cell levels;Cytokine levels in TCF, PB, and CSF;Disease response;Time to progression;Overall survival (OS);Quality of life (QOL);Area under the curve (AUC) for CD3, IFNgamma, and IP-10 levels over time for the DLT evaluation period;CAR T and endogenous cells detected in tumor tissue
患者于第-14天静脉输注纳武利尤单抗,输注60分钟;并静脉输注伊匹木单抗,输注90分钟。随后每周经Rickham导管向脑室内(ICV)/颅内(ICT)输注IL13Rα2 CAR T细胞,输注5分钟;每隔一周静脉输注纳武利尤单抗,输注30分钟。若无疾病进展或不可接受的毒性,治疗每周重复一次,最多4个周期。第4周期后,主要研究者及肿瘤科医生可酌情安排额外CAR T细胞每周输注,并每隔一周或每月输注纳武利尤单抗。
患者每周经Rickham导管向脑室内(ICV)/颅内(ICT)输注IL13Rα2 CAR T细胞,输注5分钟;每隔一周静脉输注纳武利尤单抗,输注30分钟。若无疾病进展或不可接受的毒性,治疗每周重复一次,最多4个周期。第4周期后,主要研究者及肿瘤科医生可酌情安排额外CAR T细胞每周输注,并每隔一周或每月输注纳武利尤单抗。
患者每周经Rickham导管向脑室内(ICV)/颅内(ICT)输注IL13Rα2 CAR T细胞,输注5分钟。若无疾病进展或不可接受的毒性,治疗每周重复一次,最多4个周期。第4周期后,主要研究者及肿瘤科医生可酌情安排额外CAR T细胞每周输注。
这项I期试验研究IL13Rα2-CAR T细胞单独使用或联合纳武利尤单抗、伊匹木单抗,治疗复发或对治疗无应答的胶质母细胞瘤患者时的副作用及疗效。IL13Rα2-CAR T细胞等生物疗法使用来自生物体的物质,可能攻击特定胶质瘤细胞、阻止其生长或杀伤细胞。纳武利尤单抗和伊匹木单抗等单克隆抗体免疫疗法可能帮助机体免疫系统攻击癌症,并干扰肿瘤细胞生长和扩散。目前尚不清楚IL13Rα2-CAR T细胞联合纳武利尤单抗治疗胶质母细胞瘤是否效果更好。
This phase I trial studies the side effects and how well IL13Ralpha2-CAR T cells work when given alone or together with nivolumab and ipilimumab in treating patients with glioblastoma that has come back (recurrent) or does not respond to treatment (refractory). Biological therapies, such as IL13Ralpha2-CAR T cells, use substances made from living organisms that may attack specific glioma cells and stop them from growing or kill them. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. It is not yet known whether giving IL13Ralpha2-CAR T cells and nivolumab together may work better in treating patients with glioblastoma.
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