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CD19 自体 CAR-T 细胞治疗非霍奇金淋巴瘤、急性淋巴细胞白血病:I/II 期临床试验(University of Alberta)

英文原题:Anti-CD19, Dual Co-stimulatory (4-1BB, CD3ζ) Chimeric Antigen Receptor T-cells in Patients With Relapsed/Refractory Aggressive Lymphoma or Acute Lymphoblastic Leukemia (ALL)

ClinicalTrials.gov 2019/05/06(首次登记) I/II 期注册临床试验 · 招募中

简要介绍

这是一项 I/II 期注册临床试验,评估自体 CAR-T 细胞治疗非霍奇金淋巴瘤、急性淋巴细胞白血病的安全性、可行性及初步疗效。当前状态:招募中。计划入组 63 例。试验地点:其他 · 卡尔加里、埃德蒙顿(共 6 个中心)。登记号:NCT03938987。

入组条件决定能不能参加

不限性别 · ≥ 2 Years 且 ≤ 70 Years

纳入标准:

1. 在任何研究特定程序前签署书面知情同意书;儿童(≤17岁)须由监护人同意。
2. ECOG体能状态评分0–2,或Karnofsky评分>50%。
3. 筛选时年龄2–70岁。
4. 组织学或细胞学证实为CD19阳性非霍奇金淋巴瘤或急性淋巴细胞白血病(ALL)。
5. 淋巴瘤患者至少有1个可测量病灶或PET/CT显示FDG高摄取病灶;ALL患者外周血或骨髓抽吸物中须有可定量的疾病证据。
6. 有肿瘤组织(存档或新采集)可用于免疫组织化学等相关实验室研究。
7. 既往至少接受过2种全身治疗,且不符合可能治愈疾病的标准治疗条件。
8. 肾功能充分(Cockcroft–Gault公式计算肌酐清除率>50 mL/min),肝功能充分(总胆红素<ULN的1.5倍,AST/ALT<ULN的3倍);若异常可由本研究治疗的恶性肿瘤直接导致,且影像学或活检组织病理证实,则不受此限。
9. 有生育能力的女性同意在治疗期间及末次研究治疗后至少90天内禁欲(避免异性性交)或使用年失败率<1%的避孕方法。有生育能力的定义为已初潮、未绝经(无其他明确原因的闭经持续<12个月)且未手术绝育(切除卵巢和/或子宫)。年失败率<1%的避孕方法包括双侧输卵管结扎、男性绝育、正确使用抑制排卵的激素避孕药、释放激素的宫内节育器及含铜宫内节育器。应根据试验持续时间及患者通常和偏好的生活方式评估禁欲的可靠性。周期性禁欲(如日历法、排卵法、症状体温法或排卵后法)及体外排精不可作为避孕方法。
10. 男性受试者同意在研究期间(CAR-T给药后最多2年)不捐献精子。
11. 有生育能力的男性受试者同意在研究期间及末次研究治疗后90天内使用医学认可的避孕方法。
12. 可靠、愿意在研究期间保持联系并遵守研究程序。

排除标准:

1. 既往接受直接靶向T细胞的免疫治疗(抗胸腺细胞球蛋白[ATG]除外)、抗CD19抗体治疗(blinatumomab除外)或其他基因治疗产品。
2. 30天内接受过研究性药物/抗癌治疗。
3. 同时参加其他治疗性临床试验。
4. CAR-T产品制备采血前7天内接受治疗剂量皮质类固醇(泼尼松>20 mg/日或等效剂量)。
5. 白细胞单采前4周内接受供者淋巴细胞输注(DLI)。
6. CAR-T产品制备采血前1周内接受挽救或减瘤化疗。
7. 既往有CNS受累。
8. 既往抗癌治疗所致毒性尚未恢复至NCI CTCAE v4.03>1级(或基线水平,取较高者);脱发和其他非急性毒性可接受。
9. 有未控制的合并疾病,包括持续或活动性感染(筛选前48小时内发热)、有症状的充血性心力衰竭(NYHA III/IV级)、不稳定型心绞痛、有临床意义且未控制的心律失常,或会妨碍遵守研究要求的精神疾病/社会状况。
10. 30天内接受过重大手术。
11. 已知HIV感染或需治疗的活动性感染,或乙肝表面抗原阳性、丙肝RNA阳性。
12. 开始研究治疗前4周(28天)内接种过任何传染病疫苗(如流感、水痘疫苗)。
13. 妊娠或哺乳期女性。
核对登记原文(英文)
Inclusion Criteria:

1. Have given written informed consent prior to any study-specific procedures; children (defined as 17 years of age or less) require guardian consent.
2. Eastern Cooperative Oncology Group (ECOG) Performance Status 0-2; or Karnofsky \> 50%.
3. Age of 2 to 70 years at time of screening.
4. A histologically or cytologically documented, CD19+ non-hodgkin's lymphoma or ALL.
5. At least 1 measurable lesion or FDG-avid disease by positron-emission tomography/computed tomography (PET/CT) for lymphoma patients; quantifiable evidence of ALL in either peripheral blood or bone marrow aspirate.
6. Tumor tissue (archival or recent acquisition) must be available for correlative laboratory studies (such as immunohistochemistry, and others).
7. At least 2 prior systemic therapies and patient must not be eligible for potentially curative standard-of-care therapy.
8. Adequate renal function (defined as Cockroft-Gault creatinine clearance \> 50 mL/min) and hepatic function (total bilirubin \< 1.5x ULN; and AST/ALT \< 3x ULN) unless directly related to malignant disease being treated for on study as demonstrated either by PET/CT imaging or by biopsy and histopathologic confirmation.
9. For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods that result in a failure rate of \< 1% per year during the treatment period and for at least 90 days after the last dose of study treatment. A woman is considered to be of childbearing potential if she is postmenarcheal, has not reached a postmenopausal state (≥ 12 continuous months of amenorrhea with no identified cause other than menopause), and has not undergone surgical sterilization (removal of ovaries and/or uterus). Examples of contraceptive methods with a failure rate of \< 1% per year include bilateral tubal ligation, male sterilization, established proper use of hormonal contraceptives that inhibit ovulation, hormone-releasing intrauterine devices, and copper intrauterine devices. The reliability of sexual abstinence should be evaluated in relation to the duration of the clinical trial and the preferred and usual lifestyle of the patient. Periodic abstinence (e.g., calendar, ovulation, symptothermal, or postovulation methods) and withdrawal are not acceptable methods of contraception.
10. Male participants should agree to not donate sperm during study period (i.e. up to 2 years following CAR T-cell administration).
11. Male participants with reproductive potential must agree to use medical approved contraceptives during the study and for 90 days following the last dose of study treatment.
12. Are reliable and willing to make themselves available for the duration of the study, and are willing to follow study procedures.

Exclusion Criteria:

1. Prior treatment with immunotherapy directly targeting T-cells (except anti-thymocyte globulin \[ATG\]), CD19-directed antibody-based therapies (except blinatumomab), or other gene therapy products.
2. Received any investigational drug/anti-cancer therapy within 30 days.
3. Concurrent participation in another therapeutic clinical trial.
4. Therapeutic doses of corticosteroids (defined as \> 20 mg/day prednisone or equivalent) within 7 days prior to blood collection for CAR T-cell product manufacture.
5. Donor lymphocyte infusion (DLI) within 4 weeks prior to leukapheresis.
6. Salvage or debulking chemotherapy within 1 week prior to blood collection for CAR T-cell product manufacture.
7. Prior central nervous system (CNS) involvement.
8. Unresolved acute toxicity of National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v4.03 Grade \>1 (or baseline, whichever is greater) from prior anticancer therapy. Alopecia and other nonacute toxicities are acceptable.
9. An uncontrolled intercurrent illness including but not limited to ongoing or active infection (including fever within 48 hours of screening), symptomatic congestive heart failure (i.e., New York Heart Association \[NYHA\] Class 3 or 4), unstable angina pectoris, clinically significant and uncontrolled cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
10. Major surgical procedure within 30 days.
11. Known history of human immunodeficiency virus (HIV) or active infection requiring therapy, or positive tests for hepatitis B surface antigen or hepatitis C ribonucleic acid (RNA).
12. Any vaccination against infectious diseases (e.g., influenza, varicella) within 4 weeks (28 days) of initiation of study treatment.
13. A woman who is pregnant or breastfeeding.

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。

研究终点衡量什么算有效

  • 主要终点治疗相关不良事件的数量和类型3年
  • 主要终点抗CD19 CAR-T细胞的剂量限制性毒性数量3年
  • 主要终点最大浓度(Cmax)3年
  • 主要终点达峰时间(Tmax)3年
  • 主要终点外周血和/或骨髓中的浓度-时间曲线下面积(AUC)3年
  • 主要终点总体客观缓解率(ORR,即经确认达到完全缓解[CR]或部分缓解[PR]的患者比例)3年
核对登记原文(英文)

主要终点:Number and type of treatment-related adverse events. · 3 years;Number of dose limiting toxicities of anti-CD19 CAR T-cells · 3 years;Maximum concentration (Cmax). · 3 years;Time to maximum concentration (Tmax). · 3 years;Area-Under-the-Concentration-vs-time curve (AUC) in peripheral blood and/or bone marrow. · 3 years;Overall objective response rate (ORR: proportion of patients with confirmed responses of complete [CR] or partial [PR]) · 3 years

研究设计怎么做的

研究类型
干预性研究
入组人数
63 人(预计)
分组方式
不适用(单臂)
  • CAR-T细胞治疗组试验组

    复发/难治性B细胞ALL或非霍奇金淋巴瘤患者接受CAR-T细胞治疗。

核对分组登记原文(英文)
  • CAR T cells · EXPERIMENTAL · Patients with relapsed/refractory B-cell ALL or NHL.

关键日期

开始日期
2021-03-03
主要完成日期
2026-12
全部完成日期
2027-12
登记状态核实于
2026-02

联系与责任方

申办方
University of Alberta
合作方
Alberta Cancer Foundation、Canadian Cancer Trials Group
联系邮箱
zackariah.breckenridge@ahs.ca
联系电话
7803917687

登记简述

本研究使用自体、未经筛选的单采CD3阳性淋巴细胞,采用慢病毒载体转导第二代嵌合抗原受体(CAR)。该CAR含有识别CD19的单链可变片段(scFv)以及4-1BB和CD3ζ双重共刺激胞内信号结构域。

核对登记原文(英文)

Autologous, unselected CD3+ lymphocytes collected from apheresis, transfected with a lentiviral vector containing a 2nd generation chimeric antigen receptor (CAR) consisting of a scFv recognizing CD19 and dual co-stimulatory intracellular signaling domains (4-1BB and CD3ζ).

登记原文与核验信息

试验登记号
NCT03938987
试验期别
I 期 / II 期
试验状态
招募中
试验中心
Foothills Medical Centre · 卡尔加里 · 加拿大 | Tom Baker Cancer Centre · 卡尔加里 · 加拿大 | Alberta Children's Hospital · 卡尔加里 · 加拿大 | Cross Cancer Institute · 埃德蒙顿 · 加拿大 | Stollery Children's Hospital · 埃德蒙顿 · 加拿大 | University of Alberta Hospital · 埃德蒙顿 · 加拿大
适应症(原文)
Relapsed Non Hodgkin Lymphoma; Relapsed Adult ALL; Relapsed Pediatric ALL
干预方式(原文)
autologous CD19-directed chimeric antigen receptor (CAR) T-cells