CD81 通过阻断 CD274/PD-L1 的选择性自噬降解驱动放射抵抗性胶质母细胞瘤的免疫逃逸
CD81 drives immune evasion in radioresistant glioblastoma by blocking selective autophagic degradation of CD274/PD-L1.
我们的工作确立了CD81作为连接放射抵抗与免疫逃逸的关键桥梁,其通过维持GBM中CD274的丰度发挥作用,并突显CD81作为优化放射免疫治疗的有前景的治疗靶点。
英文原题:A Phase I/II Clinical Trial on the Per-operative Intratumoral Administration of Myeloid Dendritic Cells Plus Ipilimumab and Nivolumab, Followed by Repeated Intracavitary Plus Intravenous Administration of Nivolumab in Patients With Recurrent Glioblastoma.
这是一项 I/II 期注册临床试验,评估自体细胞治疗用于胶质母细胞瘤的安全性、可行性及初步疗效。当前状态:进行中(不再招募)。计划入组 110 例。试验地点:欧洲 · 布鲁塞尔(共 1 个中心)。登记号:NCT03233152。
不限性别 · ≥ 18 Years
1. 受试者必须已签署并注明日期的经批准的书面知情同意书,符合监管和机构指南。这必须在执行任何不属于正常受试者护理的方案相关程序之前获得
2. 受试者必须愿意并能够遵守预定的访视、治疗计划、实验室检查、肿瘤活检以及研究的其他要求。
3. 胶质母细胞瘤的组织病理学诊断(= 中枢神经系统WHO IV级胶质瘤);“原发性”和“继发性”胶质母细胞瘤患者均符合条件;有低级别胶质瘤(WHO I、II或III级)组织学证据且脑部影像学(钆增强、坏死区域)显示转化为WHO IV级胶质瘤的患者符合研究参与条件;
4. 既往接受过全切或部分肿瘤切除术、放疗和替莫唑胺化疗后,诊断为胶质母细胞瘤复发和/或进展(复发/进展定义为连续脑部MRI上胶质母细胞瘤肿块显著[根据研究者评估]生长和/或复发);
5. 应存在以下疾病特征:
1. 存在可测量的肿瘤病灶,特征为脑部T1-MRI上钆增强(最长直径> 10 mm且垂直直径>5mm)。
2. 基线MRI成像或既往病史中无临床相关自发性瘤内出血证据
6. 无脑室-腹腔引流管
7. 无钆增强MRI、脑部FET-PET或全身增强CT评估的禁忌症;
8. ECOG体能状态评分为0、1或2;
9. 胶质母细胞瘤术后放疗结束后至少间隔4个月(:16周),除非首次观察到进展后> 4周获得的脑部MRI确认进展;且末次替莫唑胺给药后至少间隔4周;
10. 男性或女性,18岁或以上;
11. 既往手术、放疗和替莫唑胺的所有急性治疗相关不良反应恢复至NCI CTCAEv4.0 0级或1级,脱发除外;
12. 符合以下标准定义的充分器官功能:
1. 总血清胆红素 < 1.5 x ULN(Gilbert病患者除外,其胆红素应 < 2x ULN)
2. AST和ALT < 2.5 x 正常上限(ULN);
3. 血清肌酐 ≤1.5 x ULN或计算肌酐清除率 ≥60 mL/min
4. 绝对中性粒细胞计数(ANC)> 1500/mm³,无生长因子支持
5. 血小板 > 75 000 cells/mm³
6. 血红蛋白 ≥9 g/dL(可通过输血或生长因子支持获得)
7. FT4激素水平在正常范围内
13. 既往未接受过nivolumab和/或ipilimumab试验治疗;
14. 既往未接受过抗CTLA-4或抗PD-1/-L1靶向治疗
15. 无胃肠道异常,包括:
1. 无法口服药物。
2. 需要静脉营养。
3. 既往接受过影响吸收的外科手术,包括胃切除术。
4. 过去6个月内接受过活动性消化性溃疡病治疗。
5. 吸收不良综合征。
6. 活动性胃肠道出血,与癌症无关,表现为过去3个月内呕血、便血或黑便,且内镜检查或结肠镜检查无证据表明已缓解;
16. 基线血压读数无证据表明存在未控制的既存高血压。基线收缩压读数必须≤140 mm Hg,基线舒张压读数必须≤90 mm Hg。如果基线血压读数超过入选值,必须记录第二次血压读数(至少间隔1小时)以确认不存在未控制的高血压。高血压经降压治疗控制的患者符合条件;
17. 无合并治疗:
1. 未参加另一项治疗性临床试验;
2. 无需永久性治疗性抗凝治疗。
18. 患有活动性、已知或疑似自身免疫性疾病的受试者不符合条件。患有I型糖尿病、仅需激素替代治疗的自身免疫性甲状腺炎所致的残留甲状腺功能减退、无需全身治疗的皮肤疾病(如白癜风、银屑病或脱发)的受试者允许入组。
19. 受试者在研究入组前14天内需要接受全身性皮质类固醇(> 8 mg/日甲泼尼龙等效剂量)或其他免疫抑制药物治疗。在无活动性自身免疫性疾病的情况下,允许使用吸入性或局部用类固醇。
20. 有足够的静脉通路以进行白细胞分离术操作。
21. 无活动性未控制的癫痫发作性疾病。
22. 在研究药物给药前12个月内无心肌梗死、严重/不稳定型心绞痛、冠状动脉/外周动脉旁路移植术、症状性充血性心力衰竭或任何不稳定型心律失常、脑血管意外或短暂性脑缺血发作。当前或近期(1个月内)无使用溶栓药物或血栓栓塞事件;
23. 无已知的人类免疫缺陷病毒(HIV)或获得性免疫缺陷综合征(AIDS)相关疾病;
24. 无可能损害其接受研究治疗能力的严重未控制的医学疾病或活动性感染;
25. 无恶性肿瘤病史(除胶质瘤外),但以下情况除外:以治愈为目的治疗的皮肤癌(除黑色素瘤外)或原位乳腺癌或宫颈癌,或以治愈为目的治疗且5年内无疾病证据的任何其他癌症;
26. 无其他严重急性或慢性医学或精神疾病,或实验室异常,经研究者判断,会因参加研究或使用研究药物而带来额外风险,或经研究者判断会使患者不适合进入本研究;
27. 无痴呆或明显精神状态改变,以致无法理解或给予知情同意并遵守本方案要求;
28. 有生育能力的女性必须在治疗前3天内血清或尿液妊娠试验阴性。;女性患者必须已手术绝育或已绝经,或必须同意在治疗期间使用有效避孕措施,且应在末次nivolumab给药后继续避孕12周。所有有生育潜力的女性患者在入组前必须妊娠试验(血清或尿液)阴性。男性患者必须已手术绝育或必须同意在治疗期间使用有效避孕。有效避孕的定义将基于主要研究者或指定合作者的判断;无妊娠或哺乳;a) 无胶质母细胞瘤复发神经外科切除术的禁忌证。
1. Subjects must have signed and dated an approved written informed consent form in accordance with regulatory and institutional guidelines. This must be obtained before the performance of any protocol related procedures that are not part of normal subject care
2. Subjects must be willing and able to comply with scheduled visits, treatment schedule, laboratory tests, tumor biopsies, and other requirements of the study.
3. Histopathological diagnosis of glioblastoma (= WHO grade IV glioma of the central nervous system); both patients with "de novo" and "secondary" glioblastoma are eligible; patients who have histological proof of a lower-grade glioma (WHO grade I, II or III) and have evidence for transformation to WHO-grade IV glioma on imaging of the brain (gadolinium enhancement, areas of necrosis) are eligible for study participation;
4. Diagnosis of glioblastoma recurrence and/or progression following prior treatment with surgery consisting of a total or partial tumor resection, radiation therapy and temozolomide chemotherapy (recurrence/progression is defined as significant \[according to the investigators assessment\] growth and/or recurrence of the glioblastoma tumor mass on sequential MRI of the brain);
5. The following disease characteristics should be present:
1. Presence of a measurable tumor lesion that is characterized by gadolinium enhancement on T1-MRI of the brain (with a longest diameter of \> 10 mm and a perpendicular diameter of \>5mm).
2. No evidence of clinically relevant spontaneous intra-tumor hemorrhage on baseline MRI imaging or in the prior disease history
6. No ventriculo-peritoneal drain
7. No contraindication for evaluation by gadolinium enhanced MRI, FET-PET of the brain or whole-body contrast enhanced CT;
8. ECOG performance status score of 0, 1 or 2;
9. An interval of at least 4 months (: 16 weeks) after the end of postoperative radiation therapy for glioblastoma unless progression is confirmed on an MRI of the brain obtained \> 4 week after the first observation of progression; and with an interval of at least 4 weeks after the last administration of temozolomide;
10. Male or female, 18 years of age or older;
11. Resolution of all acute treatment related adverse effects of prior surgical procedures, radiotherapy and temozolomide to NCI CTCAEv4.0 grade 0 or 1 except for alopecia;
12. Adequate organ function as defined by the following criteria:
1. Total serum bilirubin \< 1.5 x ULN (patients with Gilbert's disease exempt who should have bilirubin \< 2x ULN)
2. AST and ALT \< 2.5 x upper limit of normal (ULN);
3. Serum creatinine ≤1.5 x ULN or calculated creatinine clearance ≥60 mL/min
4. Absolute neutrophil count (ANC) \> 1500/mm³ without growth factor support
5. Platelets \> 75 000 cells/mm³
6. Hemoglobin ≥9 g/dL (which may be obtained by transfusion or growth factor support)
7. FT4 hormone levels within normal range
13. No prior treatment on a nivolumab and/or ipilimumab trial;
14. No prior treatment with an anti-CTLA-4 or anti-PD-1/-L1 targeted therapy
15. No gastrointestinal abnormalities including:
1. Inability to take oral medication.
2. Requirement for intravenous alimentation.
3. Prior surgical procedures affecting absorption including gastric resection.
4. Treatment for active peptic ulcer disease in the past 6 months.
5. Malabsorption syndromes.
6. Active gastrointestinal bleeding, unrelated to cancer, as evidenced by hematemesis, hematochezia or melena in the past 3 months without evidence of resolution documented by endoscopy or colonoscopy;
16. No evidence of pre-existing uncontrolled hypertension as documented by baseline blood pressure reading. The baseline systolic blood pressure reading must be ≤140 mm Hg, and the baseline diastolic blood pressure readings must be ≤90 mm Hg. If baseline blood pressure reading exceeds the inclusion values a second blood pressure reading (taken at least 1 hour apart) must be documented in order to confirm the absence of uncontrolled hypertension. Patients whose hypertension is controlled by antihypertensive therapies are eligible;
17. No concurrent treatment:
1. In another therapeutic clinical trial;
2. No requirement for permanent therapeutic anticoagulation therapy.
18. Subjects with active, known, or suspected autoimmune disease are not eligible. Subjects with type I diabetes mellitus, residual hypothyroidism due to autoimmune thyroiditis only requiring hormone replacement, skin disorders (such as vitiligo, psoriasis, or alopecia) not requiring systemic treatment are permitted to enroll.
19. Subjects requiring systemic treatment with either corticosteroids (\> 8 mg daily methylprednisolone equivalent) or other immunosuppressive medications within 14 days of study enrollment. Inhaled or topical steroids are permitted in the absence of active autoimmune disease.
20. Adequate venous access to undergo a leukapheresis procedure.
21. No active uncontrolled seizure disorder.
22. No myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure or any unstable arrhythmia, cerebrovascular accident or transient ischemic attack, within the 12 months prior to study drug administration. No current or recent (within 1 month) use of a thrombolytic agent or a thrombo-embolic event;
23. No known human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS)-related illness;
24. No serious uncontrolled medical disorder or active infection that would impair their ability to receive study treatment;
25. No history of a malignancy (other than glioma) except those treated with curative intent for skin cancer (other than melanoma) or in situ breast or cervical cancer or those treated with curative intent for any other cancer with no evidence of disease for 5 years;
26. No other severe acute or chronic medical or psychiatric condition, or laboratory abnormality that would impart, in the judgment of the investigator, excess risk associated with study participation or study drug administration, or which, in the judgment of the investigator, would make the patient inappropriate for entry into this study;
27. No dementia or significantly altered mental status that would prohibit the understanding or rendering of informed consent and compliance with the requirements of this protocol;
28. Women of childbearing potential must have a negative serum or urine pregnancy test within 3 days prior to treatment.; Female patients must be surgically sterile or be postmenopausal, or must agree to use effective contraception measures during the period of therapy which should be continued for 12 weeks after the last dose of nivolumab. All female patients with reproductive potential must have a negative pregnancy test (serum or urine) prior to enrollment. Male patients must be surgically sterile or must agree to use effective contraception during the period of therapy. The definition of effective contraception will be based on the judgment of the principal investigator or a designated associate; No pregnancy or breastfeeding; a) No contra-indication for neurosurgical resection of the glioblastoma recurrence.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:Progression-free survival (PFS) · Estimate the survival of patients who are free from confirmed tumor. · up to 30 weeks;Overall Survival (OS) · Estimate the survival of patients who are alive. · an average of 1 year
研究的 I 期 CD1c(BDCA-1)+/CD141(BDCA-3)+ myDC 剂量递增(:3 个预设剂量水平)部分:记录肿瘤切除后,术中注射递增数量的自体 CD1c(BDCA-1)+/CD141(BDCA-3)+ myDC 联合瘤内注射 nivolumab 和 ipilimumab 的安全性。 研究的 II 期部分:记录术中注射特定数量的自体 CDC1(BDCA-1)+/CD141(BDCA-3)+myDC 的抗肿瘤活性。Ipilimumab(YervoyTM,50 mg/10 mL)和 Nivolumab(OpdivoTM,40 mg/4mL 溶液)将在术中按 10 mg 的注射剂量(2 ml YervoyTM,50 mg/10mL 瓶)给药。以及在第 15、29、43、57、71、85、99、113、127、141、155 和 169 天腔内给药。 10 mg Nivolumab 将通过静脉途径,在第 15、29、43、57、71、85、99、113、127、141、155 和 169 天通过 15 分钟静脉输注给药。(或必要时可在计划日期前后 ± 3 天内)。
复发性胶质母细胞瘤患者术中瘤内注射髓系树突状细胞联合ipilimumab和nivolumab,随后反复腔内注射ipilimumab和nivolumab联合静脉注射nivolumab的I/II期临床试验。 本临床试验的目的是利用瘤内CTLA-4联合自体CD1c(BDCA-1)+/CD141(BDCA-3)+ myDC与全身PD-1阻断的潜在协同作用,同时通过在复发性胶质母细胞瘤切除术后瘤内注射CTLA阻断mAb ipilimumab,将免疫相关毒性增加的风险降至最低。
Phase I/II clinical trial on the per-operative intra-tumoral administration of myeloid dendritic cells plus ipilimumab and nivolumab, followed by repeated intracavitary administration of ipilimumab and nivolumab plus intravenous administration of nivolumab in patients with recurrent glioblastoma. The aim of this clinical trial is to exploit the potential synergy of combined intra-tumoral CTLA-4 and autologous CD1c(BDCA-1)+/CD141(BDCA-3)+ myDC and systemic PD-1 blockade while minimizing the risk for increased immune-related toxicity by intratumoral administration of the CTLA-blocking mAb ipilimumab following the resection of the recurrent glioblastoma.
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