TCR-JANUS 衔接蛋白实现双特异性靶向以克服 TCR-T 细胞治疗中的肿瘤异质性
TCR-JANUS engager proteins enable bispecific targeting to overcome tumor heterogeneity in TCR-T cell therapy.
基于 T 细胞受体(TCR)的免疫疗法受限于肿瘤抗原异质性,后者常导致复发。
英文原题:NY-ESO-1 TCR-T Cells for NY-ESO-1 Positive Subjects With Advanced Solid Tumors
NY-ESO-1 TCR-T Cells for NY-ESO-1 Positive Subjects With Advanced Solid Tumors
⚠ 该试验的登记信息已有 15 个月未更新, 页面上显示的「招募中」可能已经失效。联系研究中心之前,建议先到 ClinicalTrials.gov 核对登记原文的最新状态与联系方式。
这是一项 I 期注册临床试验,评估细胞治疗用于晚期实体瘤的安全性、可行性及初步疗效。当前状态:招募中。计划入组 18 例。试验地点:中国 · 重庆(共 1 个中心,其中中国 1 个)。登记号:NCT05881525。
不限性别 · ≥ 18 Years 且 ≤ 70 Years
纳入标准:能够理解并签署知情同意书,愿意遵守试验流程和方案;年龄18–70岁;预计生存期>3个月;ECOG 0–1;组织病理确诊转移性或复发性实体瘤;影像学评估为标准治疗难治;能够提供新鲜或保存的组织标本;按RECIST 1.1至少有1个可测量病灶;NY-ESO-1表达阳性,即免疫组化阳性细胞≥25%,染色强度≥“++”;HLA分型为HLA-A2(不包括HLA-A*0203)。血液学指标至少满足:ANC≥1.5×10⁹/L(±20%)、血小板≥75×10⁹/L(±20%)、血红蛋白≥90 g/L(±20%)。肝肾功能正常:血清肌酐≤1.5×ULN或肌酐清除率≥60 mL/min;ALT和/或AST≤2.5×ULN;总胆红素≤1.5×ULN(按原登记记载)。凝血功能正常:PT≤1.5×ULN、INR≤1.5×ULN或APTT≤1.5×ULN。超声心动图LVEF>45%。育龄女性须自签署知情同意至末次给药后至少24周采取避孕措施;已手术绝育或绝经者不视为有妊娠可能。TC-N201注射液复溶前,标准治疗毒性须已恢复,研究者判断相关不良事件不构成安全风险。可置入导管,且无白细胞采集禁忌。 排除标准:妊娠、哺乳或血妊娠试验阳性;对临床试验相关成分严重过敏;首次给药前4周内接受其他试验性治疗或同期参加其他临床试验;过去5年内有其他已知恶性肿瘤史(包括宫颈原位癌、皮肤基底细胞癌和前列腺原位癌;局限性且已治愈的肿瘤除外);原发CNS肿瘤,或局部治疗后仍有CNS转移;活动性自身免疫病、自身免疫病史,或既往/当前有需全身激素或免疫抑制剂治疗的疾病/综合征;免疫缺陷,包括HIV阳性、获得性或先天性免疫缺陷;过去2年内≥3级血栓栓塞事件或正在接受溶栓治疗;遗传性或获得性出血性疾病;有临床心血管疾病或症状;活动性感染且需全身抗感染治疗(局部抗生素除外;肿瘤引起的发热可由研究者判断);病史或CT检查发现活动性肺结核,或入组前1年内活动性肺结核史,或1年前有活动性肺结核但未规范治疗;乙肝表面抗原、乙肝核心抗体或丙肝病毒抗体阳性;梅毒螺旋体抗体阳性;TC-N201细胞输注前4周内接受重大手术或严重损伤;白细胞单采前28天内接种活疫苗或减毒活疫苗;药物成瘾、酗酒或吸毒史;入组前接受过细胞治疗(如TCR-T、CAR-T或TIL);既往接受过NY-ESO-1靶向治疗;以及研究者认为不适合参加临床试验的其他情况。
Inclusion Criteria: * Be able to understand and sign the Informed of Consent Document. Be willing to follow the procedure and protocol of the clinical trial; * Age ≥ 18 years and ≤ 70 years; * Expected survival time \> 3 months; * ECOG score 0-1; * Metastatic or recurrent solid tumors confirmed by histopathology; * Refractory to standard treatment evaluated by radiological assessment; * Be able provide fresh or preserved tissue specimen; * At least 1 measurable lesion (according to RECIST 1.1); * NY-ESO-1 expression positive: Immunohistochemical staining positive cells ≥25% and positive staining intensity is "++" or above; * HLA typing is HLA-A2 (excluding HLA-A\*0203); * Hematology should at least meet the following criteria: 1. Absolute neutrophil count (ANC) ≥ 1.5× 109/L (±20%); 2. Platelet (PLT) ≥ 75× 109/L (±20%); 3. Hemoglobin (HGB) ≥ 90 g/L (±20%). * Liver and kidney function are normal: 1. Serum creatinine (Cr) ≤ 1.5 times of upper limit of normal (ULN) or creatine clearance ≥ 60 ml/min; 2. Serum Alanine aminotransferase (ALT) or/and Aspartate aminotransferase (AST) ≤ 2.5 times of upper limit of normal; 3. Total bilirubin (TBIL) ≤ 15 times of upper limit of normal. * Blood coagulation function is normal: Prothrombin time (PT) ≤ 1.5 ULN, International Normalized Ratio (INR) ≤ 1.5 ULN, or Activated Partial Thromboplastin Time (APTT) ≤ 1.5 ULN; * Echocardiogram results show: Left ventricular ejection fraction \>45%; * Women of childbearing potential should be ascetic or take contraception since the signing of ICF to 24 weeks or later after the last administration of drug Note: Women of childbearing age who have undergone surgical sterilization or who have already experienced menopause are considered to have no possibility of pregnancy. * Before the TC-N201 injection was reconstituted, the toxic effects of standard treatment had already recovered, and the corresponding adverse events were judged by the researcher to not pose a safety risk; * Catheter insertion is feasible and No White Blood Cells collection contraindications. Exclusion Criteria: * Under pregnancy or lactation, or positive based on blood pregnancy test; * Severe allergic to related ingredients in the clinical trial; * Received any other investigational treatment within 4 weeks before the first administration or enrolled in another clinical trial the same time; * History of other known malignant tumors within the previous 5 years, including carcinoma in situ of the cervix, basal cell carcinoma of the skin, and carcinoma in situ of the prostate; Except for localized tumors that have been cured; * Primary central nerve system (CNS) cancer, or subjects with CNS metastasis after localized treatment; * Subjects with any active autoimmune disease, a history of autoimmune disease, or a history or syndrome requiring treatment with systemic steroids or immunosuppressive drugs; * Immunodeficiency including HIV positive, harvested or natural immunodeficiency; * Subjects with ≥ grade 3 thromboembolic events within 2 years or under thrombolysis treatment; * Subjects with hereditary or acquired hemorrhagic disease; * Have clinical cardiovascular disease or symptoms; * Subjects with active infection: active infection requiring systemic anti-infective treatment (except topical antibiotics), fever caused by cancer could be enrolled according to the investigator's judgment; * Subjects with active pulmonary tuberculosis infection detected by medical history or Computed Tomography (CT), or a history of active pulmonary tuberculosis infection within 1 year before enrollment, or a history of active pulmonary tuberculosis infection more than 1 year before enrollment but without regular treatment; * Subjects with positive hepatitis B surface antigen or positive hepatitis B core antibody or positive hepatitis C virus antibody; * Treponema pallidum antibody positive; * Subjects received major surgery or under severe injury within 4 weeks before TC-N201 cell infusion; * Subjects who received live vaccine or attenuated live vaccine 28 days before leukapheresis; * Subjects who have drug addiction history, or alcoholism, drug users; * Subjects who received cell therapy before enrollment,such as TCR-T,CAR-T and TIL; * Subjects who have previously received treatment targeting NY-ESO-1; * Subjects not suitable for the clinical trial according to investigators.
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:Dose Limiting Toxicity or Maximum Tolerated Dose (MTD) · Dose Limiting Toxicity (DLT) is defined as patients with the adverse event (AE) or laboratory abnormality, and should be possibly related to TC-N201 cell therapy, and should be unrelated to the disease itself, disease progression, concomitant diseases or concomitant medication. MTD is defined as the highest dose at which ≤1 of 6 patients experienced a DLT or the highest dose level studied if DLTs are not observed at any of the dose levels. · Day 28 after the first TC-N201 infusion;Overall response rate · The efficacy of TC-N201 will be assessed by the objective response rate (ORR) evaluated according to RECIST 1.1 and iRECIST. ORR is described as patients assessed with partial response (PR) and complete response (CR). · Day 0 - Day 730;Treatment-related adverse events as assessed by National Cancer Institute general terminology standard for adverse events (NCI CTCAE) v5.0 · The type, incidence and severity of adverse events include abnormal laboratory examination results with clinical significance after treatment, abnormal physical examination and blood examination results, bone marrow examination results, etc. Clinical and laboratory adverse events will be classified according to the CTCAE v5.0. · Day 0 - Day 730
次要终点:Duration of response;Progression free survival;Overall survival;Maximum Persistence (Cmax) of TC-N201;Time to Maximum Persistence;Area Under the Plasma Concentration-time Curve From Zero to Day 28 (AUC [0-28]);Anti-PD-1 single chain antibody concentration
采用“3+3”剂量递增法,初始剂量为剂量1,确定最大耐受剂量并作为II期推荐剂量(原登记缩写为RPIID),至少6名患者接受该推荐剂量治疗。若剂量1发生不耐受(≥3名受试者发生DLT),后续入组患者接受剂量−1。干预包括生物制剂TCR-T细胞及药物IL-2、氟达拉滨、环磷酰胺和白蛋白结合型紫杉醇。
纽约食管鳞癌抗原1(NY-ESO-1)是一种在多种肿瘤中表达的癌睾抗原(CTA)。TCR-T治疗中,研究者采集患者血液并分离T细胞,通过基因导入使其表达可靶向NY-ESO-1的蛋白。经基因工程改造的细胞称为NY-ESO-1 TCR-T细胞,随后回输患者,以治疗疾病或延长生存。
New York Esophageal Squamous Cell Carcinoma 1 (NY-ESO-1) is a cancer-testis antigen (CTA) which is expressed in various tumors. In TCR-T therapy, researchers take the blood of a certain patient, select T cells and insert genes into the cell that expressing a kind of protein that targeting NY-ESO-1. The genetically engineered cells are called NY-ESO-1 TCR-T cells. Then the engineered cells are re-infused to the cancer patients to cure the disease or prolong life.
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