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:Autologous T-Cells Expressing a Second Generation CAR for Treatment of T-Cell Malignancies Expressing CD5 Antigen
Autologous T-Cells Expressing a Second Generation CAR for Treatment of T-Cell Malignancies Expressing CD5 Antigen
这是一项 I 期注册临床试验,评估自体 CAR-T 细胞治疗淋巴瘤、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 54 例。试验地点:美国 · 休斯顿(共 2 个中心)。登记号:NCT03081910。
不限性别 · ≤ 75 Years
患者采集纳入标准
被转诊的患者(A组——现已关闭)或其既往HSCT供者(B组)将首先签署知情同意,以采集血液用于生成转导的ATL。此阶段的患者资格标准包括:
1. 诊断为复发性T细胞急性淋巴细胞白血病(T-ALL)、T细胞急性淋巴细胞淋巴瘤(T-LLy)或T细胞非霍奇金淋巴瘤(T-NHL,包括血管免疫母细胞性T细胞淋巴瘤(AITL)、肠病相关T细胞淋巴瘤(EATL)、单形性嗜上皮性肠道T细胞淋巴瘤(MEITL)、外周T细胞淋巴瘤(PTCL)NOS、间变性大细胞淋巴瘤(ALCL)、成人T细胞白血病/淋巴瘤、伴有症状性疾病的T细胞幼淋巴细胞白血病、结外NK/T细胞淋巴瘤、蕈样肉芽肿/Sezary综合征IIB期或更高)
且
A组(自体组——现已关闭):未接受过移植或异基因HSCT后复发 或
B组(异体组):异基因HSCT后复发,且既往HSCT供者可用于生产异基因MAGENTA CAR T细胞
且
* 适合接受异基因造血干细胞移植(HSCT),且经FACT认证机构确认已确定符合条件的allo-HSCT供者
* 确认如果CD5.CAR治疗诱导完全缓解,中心计划继续进行移植。
* 对于T-NHL受试者,资格将限于有异基因HSCT指征的疾病分期。
2. CD5阳性肿瘤(结果此时可待定)。经CLIA认证的流式细胞术/病理学实验室评估,流式细胞术或免疫组织化学(组织)显示CD5+原始细胞 > 50%。
3. 年龄 ≤75岁。注:本研究中首批六(6)例接受治疗的患者应为成人(>18岁)。
4. 预期寿命大于12周。
5. 患者必须在BCM IRB批准方案中具有可用的部分HLA匹配的异基因EBV特异性T细胞系,可在发生不受控制的EBV再激活时用作治疗
6. 患者/监护人已获知情同意解释、理解并签署。患者/监护人获得知情同意书副本。
7. Hgb大于或等于7.0 g/dL(可输血)
8. 如需进行血浆分离术以采集血液:
* 肌酐 <1.5 × 正常上限
* AST <1.5 × 正常上限
* PT和APTT <1.5 × 正常上限
患者采集排除标准(A组)
1. 需要抗生素的活动性感染。
2. HIV活动性感染
3. 其他癌症病史(非黑色素瘤皮肤癌或原位乳腺癌或宫颈癌除外),除非该肿瘤在试验入组前至少2年已成功接受治愈性治疗。
正常健康供者采集纳入标准(B组):
1. 供者必须是既往为异基因HSCT后复发患者提供过造血干细胞移植的供者。既往移植供者将接受标准血库供者问卷、病史和传染病标志物(IDMs;采血时可能尚未出结果)检测筛查。若为远程采集,病史可由患者的主治/转诊移植团队获取。医师评估、供者问卷和IDMs将由主要研究者或适当指定人员审核,以确认/提供最终资格判定,并记录在供者病历中。
2. 向供者/LAR解释知情同意、使其理解并签署。向供者/LAR提供知情同意书副本。
治疗纳入标准
患者必须符合以下资格标准方可纳入治疗:
1. 诊断为复发性T细胞急性淋巴细胞白血病(T-ALL)、T细胞急性淋巴细胞淋巴瘤(T-LLy)或T细胞非霍奇金淋巴瘤(T-NHL,包括血管免疫母细胞性T细胞淋巴瘤(AITL)、肠病相关T细胞淋巴瘤(EATL)、单形性嗜上皮性肠道T细胞淋巴瘤(MEITL)、外周T细胞淋巴瘤(PTCL)NOS、间变性大细胞淋巴瘤(ALCL)、成人T细胞白血病/淋巴瘤、伴症状性疾病的T细胞幼淋巴细胞白血病、结外NK/T细胞淋巴瘤、蕈样肉芽肿/Sezary综合征IIB期或更高)
且
A组(自体组——现已关闭):未接受过移植或异基因HSCT后复发 或
B组(异体组):异基因HSCT后复发,且既往HSCT供者可用于生产异基因MAGENTA CAR T细胞
且
* 适合接受异基因造血干细胞移植(HSCT),并经FACT认证机构确认已确定符合条件的allo-HSCT供者
* 确认若CD5.CAR治疗诱导完全缓解,中心计划继续进行移植。
* 对于T-NHL受试者,资格将限于有异基因HSCT适应症的疾病分期。
2. CD5阳性肿瘤。经CLIA认证的流式细胞术/病理学实验室评估,流式细胞术或免疫组织化学(组织)显示>50% CD5+原始细胞。
3. 年龄<75岁。注:本研究中首批六(6)例接受治疗的患者应为成人(>18岁)。
4. 胆红素低于正常上限的3倍。
5. AST低于正常上限的5倍。
6. 估计GFR>60 mL/min。
7. 室内空气下脉搏血氧饱和度>90%。
8. Karnofsky或Lansky评分≥60%。
9. 在进入本研究前至少一周已从既往化疗的急性毒性作用中恢复。
10. 治疗时距异基因HSCT≥60天。
11. 患者必须在本机构IRB批准的方案下拥有可用的部分HLA匹配的异基因EBV特异性T细胞系,可在发生不受控制的EBV再激活时用作治疗。
12. 有性生活的患者必须愿意在研究期间及研究结束后6个月内采用一种更有效的避孕方法。男性伴侣应使用避孕套。
13. 患者/监护人已获知情同意解释、理解并签署知情同意书。患者/监护人已获得知情同意书副本。
治疗排除标准
1. 目前正在接受任何研究性药物,或在前6周内接受过任何肿瘤疫苗。
2. 对含鼠蛋白产品有过敏反应史。
3. 妊娠或哺乳期。
4. 肿瘤位于增大可能导致气道阻塞的部位。
5. 活动性HIV感染。
6. 具有临床意义的病毒感染或EBV、CMV、Adv、BK病毒或HHV-6未控制的病毒再激活。
7. 有急性GVHD > II级或活动性慢性GVHD > 轻度总体严重度评分的证据
8. 目前正在服用剂量 >0.5mg/kg泼尼松等效剂的皮质类固醇治疗GVHD
9. 在输注前28天内接受过针对GVHD的免疫抑制治疗(IST)的患者
10. 在输注前28天内接受过供者淋巴细胞输注(DLI)的患者
11. 任何以下心脏标准:心房颤动/扑动;过去12个月内的心肌梗死;根据研究者判断的QT延长综合征或继发性QT延长。心脏超声显示LVSF<30%或LVEF<50%;或具有临床意义的心包积液。NYHA III或IV级心功能障碍(治疗前12个月内确认不存在这些情况)
12. CNS异常:存在CNS-3疾病,定义为CSF样本中可检测到脑脊液原始细胞且每mm3 WBCs ≥ 5;任何CNS疾病史或现症,如未控制的癫痫发作性疾病、过去6个月内的脑血管缺血/出血、痴呆、小脑疾病或任何累及CNS的自身免疫性疾病。
Procurement Inclusion Criteria for the Patient
Referred patients (Group A - NOW CLOSED) or their previous HSCT donors (Group B) will initially be consented for procurement of blood for generation of the transduced ATL. Patient eligibility criteria at this stage include:
1. Diagnosis of recurrent T-cell acute lymphoblastic leukemia (T-ALL), T-cell acute lymphoblastic lymphoma (T-LLy), or T-non-Hodgkin lymphoma (T-NHL, including Angioimmunoblastic T-cell lymphoma (AITL), Enteropathy-associated T-cell lymphoma (EATL), Monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL), Peripheral T-cell lymphoma (PTCL) NOS, Anaplastic large cell lymphoma (ALCL), Adult T-cell leukemia/lymphoma, T cell prolymphocytic leukemia with symptomatic disease, Extranodal NK/T cell lymphoma, Mycosis fungoides/ Sezary Syndrome Stage IIB or higher))
AND
Group A (auto arm - NOW CLOSED): Transplant naïve or relapsed post-allogeneic HSCT OR
Group B (allo arm): Relapsed post-allogeneic HSCT with previous HSCT donor from whom allogeneic MAGENTA CAR T cells can be manufactured
AND
* Suitable for allogeneic hematopoietic stem cell transplant (HSCT) with confirmation of an identified eligible allo-HSCT donor by FACT accredited institution
* Confirmation that the center plans to proceed with transplant if CD5.CAR treatment induces a complete remission.
* For T-NHL subjects, eligibility will be confined to disease stages where allogeneic HSCT is indicated.
2. CD5-positive tumor (result can be pending at this time). \> 50% CD5 + blasts by flow cytometry or immunohistochemistry (tissue) assessed by a CLIA certified Flow Cytometry/Pathology laboratory.
3. Age ≤75 years old. NOTE: The first six (6) patients treated on the study should be adults (\>18 yrs of age).
4. Life expectancy of greater than 12 weeks.
5. Patients must have an available partially-HLA matched allogeneic EBV-specific T cell line on a BCM IRB approved protocol which can be used as treatment in the event of uncontrolled EBV reactivation
6. Informed consent explained to, understood by and signed by patient/guardian. Patient/guardian given copy of informed consent.
7. Hgb greather than or equal to 7.0 g/dL (can be transfused)
8. If pheresis required to collect blood:
* Creatinine \<1.5 × upper limit normal
* AST \<1.5 × upper limit normal
* PT and APTT \<1.5 × upper limit normal
Procurement Exclusion Criteria for the Patient (Group A)
1. Active infection requiring antibiotics.
2. Active infection with HIV
3. History of other cancer (except non-melanoma skin cancer or in situ breast cancer or cervix cancer) unless the tumor was successfully treated with curative intent at least 2 years before trial entry.
Procurement Inclusion Criteria for Normal Healthy Donor (Group B):
1. Donor must be prior hematopoietic stem cell transplant donor for patients relapsed post-allogeneic HSCT. Prior transplant donors will be screened with the standard blood bank donor questionnaire, medical history, and testing for infectious disease markers (IDMs; which may be pending at the time of blood collection). Medical history may be obtained by the patient's primary/referring transplant team if collection is being done remotely. The physician assessment, donor questionnaire, and IDMs will be reviewed by the principle investigator or appropriate designee to confirm/provide final eligibility determination and documented in the donor's medical record.
2. Informed consent explained to, understood by and signed by donor/LAR. Donor/LAR given copy of informed consent.
Treatment Inclusion Criteria
Patients must meet the following eligibility criteria to be included for treatment:
1. Diagnosis of recurrent T-cell acute lymphoblastic leukemia (T-ALL), T-cell acute lymphoblastic lymphoma (T-LLy), or T-non-Hodgkin lymphoma (T-NHL, including Angioimmunoblastic T-cell lymphoma (AITL), Enteropathy-associated T-cell lymphoma (EATL), Monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL), Peripheral T-cell lymphoma (PTCL) NOS, Anaplastic large cell lymphoma (ALCL), Adult T-cell leukemia/lymphoma, T cell prolymphocytic leukemia with symptomatic disease, Extranodal NK/T cell lymphoma, Mycosis fungoides/ Sezary Syndrome Stage IIB or higher))
AND
Group A (auto arm - NOW CLOSED): Transplant naïve or relapsed post-allogeneic HSCT OR
Group B (allo arm): Relapsed post-allogeneic HSCT with previous HSCT donor from whom allogeneic MAGENTA CAR T cells can be manufactured
AND
* Suitable for allogeneic hematopoietic stem cell transplant (HSCT) with confirmation of an identified eligible allo-HSCT donor by FACT accredited institution
* Confirmation that the center plans to proceed with transplant if CD5.CAR treatment induces a complete remission.
* For T-NHL subjects, eligibility will be confined to disease stages where allogeneic HSCT is indicated.
2. CD5-positive tumor. \>50% CD5 + blasts by flow cytometry or immunohistochemistry (tissue) assessed by a CLIA certified Flow Cytometry/Pathology laboratory.
3. Age \<75 years old. NOTE: The first six (6) patients treated on the study should be adults (\>18 yrs of age).
4. Bilirubin less than 3 times the upper limit of normal.
5. AST less than 5 times the upper limit of normal.
6. Estimated GFR \> 60 mL/min.
7. Pulse oximetry of \> 90% on room air.
8. Karnofsky or Lansky score of ≥ 60%.
9. Recovered from acute toxic effects of prior chemotherapy at least one week before entering this study.
10. ≥ 60 days post-allogeneic HSCT at time of treatment.
11. Patients must have an available partially-HLA matched allogeneic EBV-specific T cell line on a BCM IRB approved protocol which can be used as treatment in the event of uncontrolled EBV reactivation.
12. Sexually active patients must be willing to utilize one of the more effective birth control methods during the study and for 6 months after the study is concluded. The male partner should use a condom.
13. Informed consent explained to, understood by, and signed by patient/guardian. Patient/guardian given copy of informed consent.
Treatment Exclusion Criteria
1. Currently receiving any investigational agents or having received any tumor vaccines within the previous 6 weeks.
2. History of hypersensitivity reactions to murine protein-containing products.
3. Pregnant or lactating.
4. Tumor in a location where enlargement could cause airway obstruction.
5. Active infection with HIV.
6. Clinically significant viral infection or uncontrolled viral reactivation of EBV, CMV, Adv, BK-virus, or HHV-6.
7. Evidence of acute GVHD \> Grade II or active chronic GVHD \> mild global severity score
8. Currently taking corticosteroids for therapy of GVHD at a dose of \>0.5mg/kg prednisone equivalent
9. Patients who have received Immunosuppressive Treatment (IST) for GVHD within 28 days of infusion
10. Patients who have received donor lymphocyte infusion (DLI) within 28 days of infusion
11. Any of the following cardiac criteria: Atrial fibrillation/flutter; Myocardial infarction within the last 12 months; Prolonged QT syndrome or secondary prolonged QT, per investigator discretion. Cardiac echocardiography with LVSF\<30% or LVEF\<50%; or clinically significant pericardial effusion. Cardiac dysfunction NYHA III or IV (Confirmation of absence of these conditions within 12 months of treatment)
12. CNS abnormalities: Presence of CNS-3 disease defined as detectable cerebrospinal blast cells in a sample of CSF with ≥ 5 WBCs per mm3; History or presence of any CNS disorder such as a uncontrolled seizure disorder, cerebrovascular ischemia/hemorrhage within prior 6 months, dementia, cerebellar disease, or any autoimmune disease with CNS involvement.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 (DLT) rate · Defined as the proportion of subjects in each group with DLT evaluated as per the CTCAE 4.0 with the exception of Cytokine Release Syndrome (CRS) and neurological toxicities that are related to T cell infusions. · 6 weeks post-infusion
次要终点:Overall Response Rate
将评估三个剂量水平。T 细胞将与 Cytoxan 和 fludarabine 一起给药。如果患者经历了部分缓解或疾病稳定,并完成了 6 周毒性评估,没有 DLT 或其他感染性并发症的证据,他们将符合条件接受最多 3 次额外的 CD5 CAR.T 细胞输注。只要患者继续有临床缓解且没有安全问题,他们仍然符合条件接受最多 3 次额外的输注。如果患者在额外输注后经历完全缓解,研究者将建议他们进行异基因 HSCT。 一旦剂量递增完成,试验将扩展,并在每组 MTD 下治疗最多额外 6 名患者(2 个队列),以收集额外的安全性数据和初步疗效数据。
将评估三个剂量水平。T 细胞将与 Cytoxan 和 fludarabine 一起给药。如果患者经历了部分缓解或疾病稳定,并完成了 6 周毒性评估,没有 DLT 或其他感染性并发症的证据,他们将符合条件接受最多 3 次额外的 CD5 CAR.T 细胞输注。只要患者继续有临床缓解且没有安全问题,他们仍然符合条件接受最多 3 次额外的输注。如果患者在额外输注后经历完全缓解,研究者将建议他们进行异基因 HSCT。 一旦剂量递增完成,试验将扩展,并在每组 MTD 下治疗最多额外 6 名患者(2 个队列),以收集额外的安全性数据和初步疗效数据。
符合本研究条件的患者患有一种称为T细胞白血病或淋巴瘤(淋巴腺癌)的血癌。 人体有多种对抗感染和疾病的方式。似乎没有一种方式能完美地对抗癌症。本研究结合了两种不同的抗病方式:抗体和T细胞。抗体是保护身体免受细菌和其他疾病侵害的蛋白质。T细胞,或称T淋巴细胞,是特殊的抗感染血细胞,能够杀死包括肿瘤细胞在内的其他细胞。抗体和T细胞在治疗癌症患者方面都显示出前景,但尚不足以治愈大多数患者。 T淋巴细胞可以杀死肿瘤细胞,但通常数量不足。一些研究人员从人的血液中提取T细胞,在实验室中扩增后再回输给患者。在一些近期接受过骨髓或干细胞移植的患者中,其血液中的T细胞数量可能不足以在实验室中扩增。在这种情况下,可以从他们之前的移植供者处采集T细胞,供者具有相似的组织类型。 本研究中使用的抗体称为抗CD5,最初来源于已对人白血病产生免疫的小鼠。这种抗体能粘附于T细胞白血病或淋巴瘤细胞,因为这些细胞表面有一种称为CD5的物质。CD5抗体已被用于治疗T细胞白血病和淋巴瘤患者。在本研究中,抗CD5已被改造,使其不再游离于血液中,而是与T细胞结合。当抗体以这种方式与T细胞结合时,称为嵌合受体。在实验室中,研究人员还发现,如果同时加入刺激蛋白(如一种称为CD28的蛋白),T细胞的功能会更好。加入CD28能使细胞生长更好、在体内存活更久,从而有更好的机会杀死白血病或淋巴瘤细胞。 在本研究中,研究人员将把带有CD28的CD5嵌合受体连接到患者的T细胞或之前骨髓移植供者的T细胞上。研究人员随后将检测这些细胞的存活时间。决定使用骨髓移植供者的T细胞而非患者的T细胞将基于以下两点:1)是否有可用且愿意的供者;2)患者的T细胞在实验室中扩增的可能性。这些带有CD28的CD5嵌合受体T细胞是研究性产品,未经FDA批准。 更新:请注意,本研究的自体组现已关闭。
Patients eligible for this study have a type of blood cancer called T-cell leukemia or lymphoma (lymph gland cancer). The body has different ways of fighting infection and disease. No one way seems perfect for fighting cancers. This research combines two different ways of fighting disease, antibodies and T cells. Antibodies are proteins that protect the body from bacterial and other diseases. T cells, or T lymphocytes, are special infection-fighting blood cells that can kill other cells including tumor cells. Both antibodies and T cells have shown promise treating patients with cancers, but have not been strong enough to cure most patients. T lymphocytes can kill tumor cells but there normally are not enough of them. Some researchers have taken T cells from a person's blood, grown more in the lab then given them back to the person. In some patients who've had recent bone marrow or stem cell transplant, the number of T cells in their blood may not be enough to grow in the lab. In this case, T cells may be collected from their previous transplant donor, who has a similar tissue type. The antibody used in this study, called anti-CD5, first came from mice that have developed immunity to human leukemia. This antibody sticks to T-cell leukemia or lymphoma cells because of a substance on the outside of these cells called CD5. CD5 antibodies have been used to treat people with T-cell leukemia and lymphoma. For this study, anti-CD5 has been changed so that instead of floating free in the blood it is now joined to the T cells. When an antibody is joined to a T cell in this way it is called a chimeric receptor. In the lab, investigators have also found that T cells work better if stimulating proteins, such as one called CD28, are also added. Adding the CD28 makes the cells grow better and last longer in the body, giving them a better chance of killing the leukemia or lymphoma cells. In this study investigators will attach the CD5 chimeric receptor with CD28 added to it to the patient's T cells or the previous bone marrow transplant donor's T cells. The investigators will then test how long the cells last. The decision to use the bone marrow transplant donor's T cells instead of the patient's will be based on 1) whether there is an available and willing donor and 2) the likelihood of the patient's T cells being able to grow in the lab. These CD5 chimeric receptor T cells with CD28 are investigational products not approved by the FDA. UPDATE: Please note that the Autologous Arm of this study is now closed.
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