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CAR-T 治疗肿瘤:II 期临床试验(OHSU Knight Cancer)

英文原题:Intrathecal Cytarabine, Methotrexate, and Hydrocortisone for the Prevention of High-Grade Chimeric Antigen Receptor T-Cell-Associated Neurotoxicity Syndrome

查看英文原题

Intrathecal Cytarabine, Methotrexate, and Hydrocortisone for the Prevention of High-Grade Chimeric Antigen Receptor T-Cell-Associated Neurotoxicity Syndrome

ClinicalTrials.gov 2025/03/26(首次登记) II 期注册临床试验 · 招募中

简要介绍

这是一项 II 期注册临床试验,评估细胞治疗用于肿瘤的安全性、可行性及初步疗效。当前状态:招募中。计划入组 26 例。试验地点:美国 · 波特兰(共 1 个中心)。登记号:NCT06895473。

入组条件决定能不能参加

不限性别 · ≥ 18 Years

纳入标准:已签署书面知情同意;受试者或法定授权代表须在研究特定程序/干预前签署;年龄≥18岁,性别、种族和族裔不限;住院期间接受标准治疗Yescarta®或Tecartus®;同意遵循机构关于CAR-T治疗后30天内避孕的指南。受试者须知CAR-T或鞘内化疗对胎儿发育的影响未知,具有生育能力者应充分避孕;如受试者或其伴侣妊娠或疑似妊娠,应立即告知主管医生。ECOG≤2;血小板>50,000/mm³(μL);凝血指标充分(INR<1.6、纤维蛋白原>100)。

排除标准:当前/同时确诊CNS血液恶性肿瘤;有CNS疾病史或现症,如控制不佳的癫痫(12个月内发作)、横贯性脊髓炎、脑血管缺血/出血、痴呆、小脑疾病或CNS受累的自身免疫病;已知对鞘内化疗过敏;存在腰椎穿刺禁忌,包括后颅窝占位、穿刺部位附近皮肤感染、未纠正出血倾向、疑似颅内压升高或急性脊髓损伤;使用且依据现有最佳证据无法在腰穿前停用的抗血小板药和/或抗凝药;已知出血性疾病;或研究者认为其他重要疾病/异常/情况使其不适合参加或增加风险。
核对登记原文(英文)
Inclusion Criteria:

* Written informed consent. Participant or legally authorized representative (LAR) must provide written informed consent prior to any study-specific procedures or interventions
* Age ≥ 18 years. All genders, races, and ethnic groups will be included
* Must be receiving SOC Yescarta® or Tecartus® in the inpatient setting
* Agree to adhere to institutional guidelines for contraception during the first 30 days post CAR-T

  * Rationale for eligibility criteria based on contraception and pregnancy (both participants and partners of a sperm-producing participant): It shall be known to all participants that the effects of CAR-T or IT chemotherapy on the developing human fetus are unknown. For this reason, persons of reproductive potential must agree to use adequate contraception. Should a participant or participant's sexual partner become pregnant or suspect a pregnancy while participating in this study, the individual should inform their treating physician immediately
* Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2
* Platelet count \> 50,000/mm\^3 (μL)
* Adequate coagulation tests including international normalized ratio (INR) \< 1.6 and fibrinogen \> 100

Exclusion Criteria:

* Active/concurrent diagnosis of any central nervous system (CNS) hematologic malignancy

  * History or presence of CNS disorder such as poorly controlled seizure disorder (seizure within the 12 months), transverse myelitis, cerebrovascular ischemia/hemorrhage, dementia, cerebellar disease, or any autoimmune disease with CNS involvement
* Known history of hypersensitivity to IT chemotherapy
* Subject has a contraindication to LP including:

  * Presence of a posterior fossa mass
  * Skin infection near puncture site
  * Uncorrected bleeding diathesis
  * Suspicion of increased intracranial pressure
  * Acute spinal cord trauma
* Subject is receiving an antiplatelet and/or anticoagulant that cannot be held prior to LP according to best available evidence
* Known bleeding disorders
* Any other significant medical illness, abnormality, or condition that would, in the Investigator's judgement, make the participant inappropriate for study participation or would put the participant at risk

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ASTCT≥3级免疫效应细胞相关神经毒性综合征(ICANS)的发生率自首次鞘内化疗(CAR-T第4天)至CAR-T第30天
  • 次要终点ASTCT任何级别ICANS的发生率
  • 次要终点腰椎穿刺/鞘内治疗相关AE及SAE发生率
  • 次要终点皮质类固醇累积用量的均值(范围)
  • 次要终点阿那白滞素使用率
核对登记原文(英文)

主要终点:Incidence of American Society for Transplantation and Cellular Therapy (ASTCT) ≥ grade 3 immune-effector cell associated neurotoxicity syndrome (ICANS) · Will be reported using the efficacy set. Point estimate, along with exact two-sided 95% confidence interval will be reported. · From first dose of intrathecal (IT) chemotherapy (chimeric antigen receptor [CAR]-T day 4) to CAR-T day 30
次要终点:Incidence of ASTCT any grade ICANS;Incidence of lumbar puncture/IT treatment related adverse events (AEs) and serious adverse events (SAEs);Mean (range) cumulative dose of corticosteroid use;Incidence of anakinra use

研究设计怎么做的

研究类型
干预性研究
入组人数
26 人(预计)
分组方式
不适用(单臂)
  • 支持治疗(阿糖胞苷、甲氨蝶呤、氢化可的松)试验组

    接受标准CAR-T治疗后第4天,若未出现不可接受毒性或ICANS,则经腰椎穿刺在3–5分钟内鞘内给予阿糖胞苷、甲氨蝶呤和氢化可的松。未出现任何级别ICANS者还在标准CAR-T治疗后第7天鞘内接受氢化可的松。研究期间还将采集脑脊液(CSF)样本。

核对分组登记原文(英文)
  • Supportive Care (cytarabine, methotrexate, hydrocortisone) · EXPERIMENTAL · Patients receive cytarabine IT, methotrexate IT, and hydrocortisone IT over 3-5 minutes via LP on day 4 post-SOC CAR T-cell therapy in the absence of unacceptable toxicity or development of ICANS. Patients who do not develop ICANS of any grade, also receive hydrocortisone IT on day 7 post SOC CAR T-cell therapy. Additionally, patients undergo CSF sample collection throughout the study.

关键日期

开始日期
2025-06-04
主要完成日期
2027-04-30
全部完成日期
2027-12-31
登记状态核实于
2026-06

联系与责任方

主要研究者
Stephen Spurgeon
申办方
OHSU Knight Cancer Institute
合作方
Oregon Health and Science University、American Society of Clinical Oncology

登记简述

本Ⅱ期试验评估鞘内(IT)给予阿糖胞苷(Ara-C)、甲氨蝶呤和氢化可的松,能否预防接受嵌合抗原受体T细胞(CAR-T)治疗患者发生高级别免疫效应细胞相关神经毒性综合征(ICANS)。ICANS是CAR-T治疗中较难处理的并发症,可导致从轻微头痛或短暂意识混乱到幻觉、脑水肿和癫痫等神经系统症状。约20%–70%的CAR-T治疗患者会出现神经毒性。

核对登记原文(英文)

This phase II trial tests how well cytarabine (Ara-C), methotrexate, and hydrocortisone given between the spinal cord and the membranes that protect it (intrathecal \[IT\]) works in preventing high-grade immune effector-associated neurotoxicity syndrome (ICANS) in patients receiving chimeric antigen receptor (CAR) T-cell therapy. ICANS is a challenging complication of CAR T-cell therapy that causes neurological effects varying from mild headaches or temporary confusion to hallucinations, swelling in the brain, and seizures. Between 20%-70% of patients receiving CAR T-cell therapy show symptoms of neurotoxicity.

登记原文与核验信息

试验登记号
NCT06895473
试验期别
II 期
试验状态
招募中
试验中心
OHSU Knight Cancer Institute · 波特兰 · 美国
适应症(原文)
Hematopoietic and Lymphatic System Neoplasm
干预方式(原文)
Biospecimen Collection; Cytarabine; Lumbar Puncture; Methotrexate; Therapeutic Hydrocortisone