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:PSCA-CAR T Cells in Treating Patients With PSCA+ Metastatic Castration Resistant Prostate Cancer
这是一项 I 期注册临床试验,评估自体细胞治疗用于前列腺癌的安全性、可行性及初步疗效。当前状态:进行中(不再招募)。计划入组 14 例。试验地点:美国 · 杜阿尔特(共 1 个中心)。登记号:NCT03873805。
仅男性 · ≥ 18 Years
纳入标准: • 能理解并愿意签署书面知情同意书。 • ECOG评分0–2分或KPS≥70%。 • 已有去势抵抗性前列腺癌(mCRPC)记录(去势定义为睾酮<50 ng/dL,可通过睾丸切除或促黄体生成素释放激素[LHRH]激动剂/拮抗剂治疗实现);City of Hope(COH)病理护理评估证实肿瘤表达PSCA;接受至少一种晚期雄激素靶向治疗(如阿比特龙或恩扎卢胺)期间出现以下任一进展:至少间隔7天的两次检测显示PSA升高、绝对升幅>2 ng/dL且睾酮<50 ng/dL;或CT/骨扫描出现新转移灶,或按RECIST显示软组织进展。 • 既往接受卡巴他赛和/或多西他赛化疗可有可无;既往接受化疗者,单采前须间隔至少2周。 • 允许既往放疗,但不得照射唯一可评估病灶,且须在单采前>14天完成。 • 无已知白细胞单采、类固醇或托珠单抗禁忌证。 • 签署主要研究同意书前42天内总血清胆红素≤2.0 mg/dL;Gilbert综合征患者总胆红素≤ULN的3.0倍且直接胆红素≤ULN的1.5倍可纳入。 • 签署主要研究同意书前42天内AST<ULN的5倍、ALT<ULN的5倍。 • 签署主要研究同意书前42天内按Cockcroft-Gault公式计算CrCl≥50 mL/min。 • 签署主要研究同意书前42天内,12导联心电图无需进一步检查/干预的急性异常。 • 签署主要研究同意书前42天内LVEF>40%。 • 有生育能力者同意在研究治疗期间及研究治疗末次给药后3个月采用认可的避孕方法。 排除标准: • 签署主要知情同意前2周内存在临床显著心律失常,或经药物治疗仍不稳定的心律失常。 • 有视神经炎或其他影响CNS的免疫/炎症疾病史或既往诊断,包括癫痫。 • 对化学/生物组成相似的化合物或本研究使用的其他药物有过敏反应史。 • 已知出血性疾病,如血管性血友病或血友病。 • 签署主要同意前6个月内有卒中或颅内出血史。 • 有其他恶性肿瘤史,但根治性手术切除/其他根治治疗的恶性肿瘤、皮肤基底细胞癌或局限性鳞状细胞皮肤癌、非肌层浸润性膀胱癌,以及根治治疗后≥3年无活动性疾病的肿瘤除外。 • 未控制的活动性感染。 • 活动性乙肝或丙肝感染。 • HIV感染。 • 研究者判断因研究程序安全顾虑而不适合参加的其他情况。 • 研究者认为可能无法遵守全部研究程序(包括可行性/物流相关事项)的潜在参与者。
Inclusion Criteria:
* All participants must have the ability to understand and the willingness to sign a written informed consent
* Eastern Cooperative Oncology Group (ECOG) performance status 0 - 2 or KPS ≥70%.
* Documented castration resistant prostate cancer (mCRPC) (Note: castration will be defined by a testosterone \< 50 ng/dL achieved by orchiectomy or luteinizing hormone-releasing hormone \[LHRH\] agonist/antagonist therapy)
* Documented PSCA+ tumor expression as evaluated by City of Hope (COH) Pathology Care
* Progression of disease manifest by one of the following means during treatment with at least one advanced androgen targeted therapy (e.g., abiraterone or enzalutamide)
* Rising PSA documented on 2 occasions at least 7 days apart, with absolute increase \> 2 ng/dL despite testosterone \< 50 OR
* Radiographic evidence of new metastatic foci on computed tomography (CT) or bone scan, or soft tissue progression by Response Evaluation Criteria in Solid Tumors (RECIST)
* Prior chemotherapy with cabazitaxel and/or docetaxel is allowed but not required. If there has been prior chemotherapy, at least 2 weeks must have elapsed prior to leukapheresis
* Prior radiotherapy is allowed provided it was not administered to the only evaluable site of disease and was \> 14 days prior to leukapheresis
* No known contraindications to leukapheresis, steroids or tocilizumab
* Total serum bilirubin =\< 2.0 mg/dL (to be performed within 42 days of signing the main study consent)
* Patients with Gilbert syndrome may be included if their total bilirubin is =\< 3.0 x upper limit of normal (ULN) and direct bilirubin =\< 1.5 x ULN
* Aspartate aminotransferase (AST) \< 5 x ULN (to be performed within 42 days of signing the main study consent)
* Alanine aminotransferase (ALT) \< 5 x ULN (to be performed within 42 days of signing the main study consent)
* Creatinine clearance of \>= 50 mL/min per the Cockcroft-Gault formula (to be performed within 42 days of signing the main study consent)
* Cardiac function (12 lead-electrocardiography \[ECG\]) without acute abnormalities requiring investigation or intervention (to be performed within 42 days of signing the main study consent)
* Left ventricular ejection fraction \> 40% (to be performed within 42 days of signing the main study consent)
* Participants of reproductive potential must agree to use acceptable birth control methods throughout study therapy and for 3 months after final dose of study treatment
Exclusion Criteria:
* Participants with clinically significant arrhythmia or arrhythmias not stable on medical management within two weeks of signing the main consent
* Participants with a known history or prior diagnosis of optic neuritis or other immunologic or inflammatory disease affecting the central nervous system, including seizure disorder
* History of allergic reactions attributed to compounds of similar chemical or biologic composition or other agents used in this study
* Known bleeding disorders (e.g., von Willebrand's disease) or hemophilia
* History of stroke or intracranial hemorrhage within 6 months prior to signing the main consent
* History of other malignancies, except for malignancy surgically resected (or treated with other modalities) with curative intent, basal cell carcinoma of the skin or localized squamous cell carcinoma of the skin; non-muscle invasive bladder cancer; malignancy treated with curative intent with no known active disease present for \>= 3 years
* Uncontrolled active infection
* Active hepatitis B or hepatitis C infection
* Human immunodeficiency virus (HIV) infection
* 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
* 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:Grade 3 Toxicity Profile · Grade 3 toxicity profile as assessed by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v)5 and modified Cytokine Release Syndrome (CRS) grading as applicable post chimeric antigen receptor (CAR) T cell infusion. · Up to 32 months;Number of Participants Experiencing a Dose-limiting Toxicity (DLT) · Defined by any grade 3 or NCI CTCAE toxicities and modified CRS grading as applicable. · Up to 28 days post treatment
次要终点:Percent of Participants With CAR T Cells Persistence at Day 28;Expansion of CAR T Cells;Percent of Participants Achieving Stable Disease;Percent of Participants Alive at Six Months
患者可接受标准或改良淋巴细胞清除方案,包括第-5至-3天静脉给予氟达拉滨,以及第-5至-3天或第-4和/或-3天静脉给予环磷酰胺。除队列1和-1不进行淋巴清除外,研究主要研究者和方案团队将根据疾病类型及既往治疗选择预处理化疗方案。第0天静脉输注自体抗PSCA-CAR-4-1BB/TCRζ-CD19t表达T淋巴细胞,输注时间10–15分钟。
本I期试验研究靶向前列腺干细胞抗原(PSCA)的嵌合抗原受体T细胞(CAR-T)治疗PSCA阳性、已转移的去势抵抗性前列腺癌患者的副作用及最佳剂量。PSCA-CAR T细胞是在实验室基因工程改造的免疫细胞,可通过病毒将DNA片段导入免疫细胞,使其识别前列腺肿瘤细胞并杀伤肿瘤。目前尚不清楚PSCA-CAR T细胞治疗转移性去势抵抗性前列腺癌的疗效。
This phase I trial studies side effects and best dose of PSCA-chimeric antigen receptor (CAR) T cells in treating patients with prostate stem cell antigen positive (PSCA+) castration resistant prostate cancer that has spread to other places in the body (metastatic). PSCA-CAR T cells are immune cells that have been engineered in the laboratory to kill tumor cells. This is done by using a virus to insert a piece of deoxyribonucleic acid (DNA) into the immune cells that allows them to recognize prostate tumor cells. It is not yet known how well PSCA-CAR T cells works in killing tumor cells in patients with metastatic castration resistant prostate cancer.
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