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:CD19-Car T Cell Therapy for the Treatment of Older Adults With Acute Lymphoblastic Leukemia in First Remission
CD19-Car T Cell Therapy for the Treatment of Older Adults With Acute Lymphoblastic Leukemia in First Remission
分数与星级只用于站内排序 —— 不代表疗效、安全性或个人适用性。
这是一项 I 期注册临床试验,评估自体细胞治疗用于急性淋巴细胞白血病的疗效与安全性。当前状态:进行中(不再招募)。计划入组 18 例。试验地点:美国 · 杜阿尔特(共 1 个中心)。登记号:NCT05707273。
不限性别 · ≥ 55 Years
纳入标准: * 有受试者签署的书面知情同意记录。 * 同意使用诊断性肿瘤活检的存档组织。 * 如无存档组织,可经研究主要研究者(PI)批准例外。 * 注:不会说英语的研究参与者可在City of Hope(COH)认证口译员/译员协助下使用简版同意书,先进行筛选和白细胞单采,同时申请完整同意书翻译件。但研究参与者只有在签署完整翻译版同意书后,方可接受淋巴细胞清除和T细胞输注。 * 年龄≥55岁。 * 东部肿瘤协作组(ECOG)评分<2,或Karnofsky体能状态(KPS)评分≥70。 * 能够阅读和理解英文问卷。 * 诊断时经组织学确认CD19阳性ALL。 * 形态学上首次完全缓解,无论微小残留病灶(MRD)状态如何。 * 近期无移植计划。 * 诱导治疗±再诱导治疗后达到缓解。 * 既往抗癌治疗所致急性毒性已完全恢复至≤1级,脱发除外。 * 总胆红素≤正常值上限(ULN)的1.5倍,Gilbert病患者除外。 * 天冬氨酸氨基转移酶(AST)≤ULN的3倍。 * 丙氨酸氨基转移酶(ALT)≤ULN的3倍。 * 通过24小时尿液检测或Cockcroft–Gault公式计算的肌酐清除率≥60 mL/min。 * 左心室射血分数(LVEF)≥50%;须在方案治疗开始前28天内检查。 * 室内空气下氧饱和度>92%;须在方案治疗开始前28天内检查。 * 人类免疫缺陷病毒(HIV,定量聚合酶链式反应[qPCR])、丙型肝炎病毒(HCV)、活动性乙型肝炎病毒(HBV,表面抗原)和梅毒(快速血浆反应素[RPR])血清学阴性。 * 如检测阳性,须进行丙型肝炎RNA定量;或 * HIV、HCV或HBV血清学阳性者须进行核酸定量,病毒载量须不可检出。 * 符合其他机构和联邦感染性疾病滴度检测要求;感染性疾病检测须在方案治疗开始前28天内进行。 * 有生育能力的女性(WOCBP):尿液或血清妊娠试验阴性。 * 若尿检阳性或无法确认阴性,须进行血清妊娠试验。 * 有生育能力的女性和男性须同意在研究期间以及方案治疗末次给药后至少6个月内采取有效避孕措施或避免异性性行为。 * 有生育能力定义为男性或女性未接受手术绝育;女性定义还包括过去一年内仍有月经。 排除标准: * 对与研究药物化学或生物组成相似的化合物有过敏反应史。 * 已知CNS-2或CNS-3受累且对鞘内化疗和/或颅脊髓放疗难治。既往有中枢神经系统(CNS)疾病史,但已有效治疗至完全缓解(脑脊液[CSF]白细胞<5个/mm³且无原始细胞)的研究参与者可入组。 * 自身免疫性疾病或活动性移植物抗宿主病(GVHD),需要全身免疫抑制治疗。 * 按纽约心脏协会(NYHA)分级为III/IV级心血管功能障碍。 * 其他恶性肿瘤史,但以下情况除外:经手术或其他方式根治性治疗的恶性肿瘤、皮肤基底细胞癌或局限性皮肤鳞状细胞癌、非肌层浸润性膀胱癌,以及经根治性治疗且≥2年无已知活动性疾病的恶性肿瘤。 * 具有临床意义且未控制的疾病。 * 需要抗生素治疗的活动性全身感染且未控制。 * 已知有HIV、乙型肝炎或丙型肝炎感染史。 * 乙型肝炎核心抗体(anti-HBc)阳性且表面抗原阴性的受试者,须PCR检测阴性。乙型肝炎表面抗原(HBsAg)阳性或HBV PCR阳性者排除。 * 乙型肝炎核心抗体阳性(或有已知HBV感染史)的受试者应每季度接受HBV脱氧核糖核酸(DNA)定量PCR监测,直至研究药物末次给药后12个月。病毒载量升高(高于检测下限)者须停用研究药物、开始抗病毒治疗,并咨询具有乙型肝炎管理经验的医生。强烈建议研究入组时核心抗体阳性的受试者在治疗开始前启动恩替卡韦,并持续至研究治疗完成。 * 丙型肝炎抗体阳性者须PCR检测阴性;HCV PCR阳性者排除。 * 仅女性:妊娠或哺乳期。 * 同时使用全身性类固醇或长期使用免疫抑制药物。近期或当前使用吸入类固醇不构成排除。允许生理性类固醇替代治疗(泼尼松≤7.5 mg/日或等效剂量)。 * 研究者判断任何其他状况会因研究程序的安全性问题而不适合患者参加临床研究。 * 研究者认为可能无法遵守所有研究程序(包括可行性/后勤方面的依从性问题)的潜在参与者。
Inclusion Criteria:
* Documented informed consent of the participant
* Agreement to allow the use of archival tissue from diagnostic tumor biopsies
* If unavailable, exceptions may be granted with Study Principal Investigator (PI) approval
* Note: For research participants who do not speak English, a short form consent may be used with a City of Hope (COH) certified interpreter/translator to proceed with screening and leukapheresis, while the request for a translated full consent is processed. However, the research participant is allowed to proceed with lymphodepletion and T cell infusion only after the translated full consent form is signed
* Age: \>= 55 years
* Eastern Cooperative Oncology Group (ECOG) \< 2 / Karnofsky Performance Status (KPS) \>= 70
* Ability to read and understand English for Questionnaires
* Histologically confirmed CD19+ ALL at the time of diagnosis
* In morphological first complete remission regardless of minimal residual disease (MRD) status
* No immediate plan for transplant
* Remission after induction +/- reinduction therapy
* Fully recovered from the acute toxic effects (except alopecia) to =\< Grade 1 to prior anti-cancer therapy
* Total bilirubin =\< 1.5 X upper limit of normal (ULN) (unless has Gilbert's disease)
* Aspartate aminotransferase (AST) =\< 3 x ULN
* Alanine transaminase (ALT) =\< 3 x ULN
* Creatinine clearance of \>= 60 mL/min per 24 hour urine test or the Cockcroft-Gault formula
* Left ventricular ejection fraction (LVEF) \>= 50%
* Note: To be performed within 28 days prior to start of protocol therapy
* Oxygen (O2) saturation \> 92% on room air.
* Note: To be performed within 28 days prior to start of protocol therapy
* Seronegative for human immunodeficiency virus (HIV) (quantitative polymerase chain reaction \[qPCR\]), hepatitis C virus (HCV), active hepatitis B virus (HBV) (Surface Antigen Negative), and syphilis (rapid plasma reagin \[RPR\])
* If positive, hepatitis C ribonucleic acid (RNA) quantitation must be performed OR
* If seropositive for HIV, HCV or HBV, nucleic acid quantitation must be performed. Viral load must be undetectable
* Meets other institutional and federal requirements for infectious disease titer requirements
* Note Infectious disease testing to be performed within 28 days prior to start of protocol therapy
* Women of childbearing potential (WOCBP): negative urine or serum pregnancy test
* If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required
* 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 6 months after the last dose of protocol therapy.
* Childbearing potential defined as not being surgically sterilized (men and women) or have not been free from menses for \> 1 year (women only)
Exclusion Criteria:
* History of allergic reactions attributed to compounds of similar chemical or biologic composition to study agent(s)
* Research participant with known CNS-2 or CNS-3 involvement that is refractory to intrathecal chemotherapy and/or cranio-spinal radiation. Research participants with a history of central nervous system (CNS) disease that has been effectively treated to complete remission (\<5 WBC/mm3 and no blasts in cerebrospinal fluid \[CSF\]) will be eligible
* Autoimmune disease or active graft versus host disease (GVHD) requiring systemic immunosuppressant therapy
* Class III/IV cardiovascular disability according to the New York Heart Association (NYHA) Classification
* 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 \>= 2 years
* Clinically significant uncontrolled illness
* Active systemic uncontrolled infection requiring antibiotics
* Known history of HIV or hepatitis B or hepatitis C infection
* Subjects who are hepatitis B core antibody (anti-HBc) positive and who are surface antigen negative will need to have a negative polymerase chain reaction (PCR) result. Those who are hepatitis B surface antigen (HbsAg) positive or hepatitis B PCR positive will be excluded
* Subjects who are hepatitis B core antibody positive (or have a known history of HBV infection) should be monitored quarterly with a quantitative PCR test for HBV deoxyribonucleic acid (DNA). HBV monitoring should last until 12 months after last dose of study drug. Any subject with a rising viral load (above lower limit of detection) should discontinue study drug and have antiviral therapy instituted and a consultation with a physician with expertise in managing hepatitis B. Subjects who are core Ab positive at study enrollment are strongly recommended to start Entecavir before start and until completion of study treatment
* Subjects who are hepatitis C antibody positive will need to have a negative PCR result. Those who are hepatitis C PCR positive will be excluded
* Females only: Pregnant or breastfeeding
* Concurrent use of systemic steroids or chronic use of immunosuppressant medications. Recent or current use of inhaled steroids is not exclusionary. Physiologic replacement of steroids (prednisone =\< 7.5 mg /day or equivalent) is allowed
* Any other condition that would, in the Investigator's judgment, contraindicate the patient'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:Incidence of dose-limiting toxicity (DLT) · Assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Observed toxicities will be summarized in terms of type (organ affected or laboratory determination), severity, attribution, time of onset, duration, and reversibility or outcome. · Up to 28 days after CD19-chimeric antigen receptor (CAR) T cell infusion;Incidence of adverse events · Assessed using CTCAE version 5.0. Cytokine release syndrome adverse events will be characterized using the descriptions and grading scales found in the Lee, et. al. publication: 'ASTCT Consensus Grading for Cytokine Release Syndrome and Neurologic Toxicity Associated with Immune Effector Cells. Observed toxicities will be summarized in terms of type (organ affected or laboratory determination), severity, attribution, time of onset, duration, and reversibility or outcome. · Up to 15 years
次要终点:Percentage of consented older B-acute lymphoblastic leukemia (ALL) patients undergoing leukapheresis who get sufficient CD19-CAR T cells manufactured and infused at their assigned dose level;Minimal residual disease (MRD) response rate;Event-free survival;Overall survival rate;Rate of relapse, including MRD and extramedullary relapse;Frailty phenotype score
患者接受T细胞白细胞单采,静脉给予氟达拉滨和环磷酰胺,随后在研究中静脉输注CD19-CAR-T 细胞。
这项I期试验旨在评估自体抗CD19 CAR表达T淋巴细胞(CD19-CAR-T 细胞)治疗老年B细胞急性淋巴细胞白血病患者的安全性、副作用和最佳剂量。CAR-T 细胞疗法是在实验室中改造患者的T细胞(免疫系统细胞),使其能够攻击癌细胞。研究人员从患者血液中采集T细胞,并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(CAR)。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B细胞急性淋巴细胞白血病。
This phase I trial tests the safety, side effects, and best dose of autologous anti-CD19 CAR-expressing T lymphocytes (CD19-CAR T cells) in older adults with B-cell acute lymphoblastic leukemia. Chimeric antigen receptor (CAR) 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 (CAR). Large numbers of the CAR T cells are grown in the laboratory and given to the patient by infusion for treatment of B-cell acute lymphoblastic leukemia.
MEMBER ACCOUNT
登录成功会直接打开下一页。