A Phase I safety & immunogenicity study of an HPV16-specific therapeutic protein, TA-CIN, administered intratumorally with chemoradiation in patients with cervical cancer stratified by HPV16 infection
A Phase I safety & immunogenicity study of an HPV16-specific therapeutic protein, TA-CIN, administered intratumorally with chemoradiation in patients with cervical cancer stratified by HPV16 infection
批准号:
10251098
负责人:
TZYY-CHOOU WU
金额:
$20.86万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2003
资助国家:
美国
项目状态:
已结题
起止时间:
2003-09-30 至 2024-08-31
关键词:
AffectAntigen PresentationAntigen-Presenting CellsAntigensApoptoticBedsCD8-Positive T-LymphocytesCancer PatientCarcinomaCell DeathChimeric ProteinsCisplatinClinicalClinical TrialsComplementDataDendritic CellsDiseaseDistalFormulationFundingGoalsHuman Papilloma Virus-Related Malignant NeoplasmHuman PapillomavirusHuman papilloma virus infectionHuman papillomavirus 16Immune responseImmunityImmunotherapeutic agentImmunotherapyInfectionInjectionsIntramuscularLeadLesionMalignant neoplasm of cervix uteriMediatingModelingPatient-Focused OutcomesPatientsPeptidesPharmaceutical PreparationsPhasePhenotypePopulationPre-Clinical ModelProteinsRadiation therapySafetySecondary PreventionSiteStromal CellsSumT-LymphocyteTherapeuticToxic effectTumor AntigensTumor-infiltrating immune cellsVaccinatedVaccinationVaccine TherapyVaccinesVial deviceViral Load resultadaptive immune responseanti-PD1 antibodiesantitumor effectcell mediated immune responsecervical cancer preventioncervicovaginalchemoradiationchemotherapyimmune checkpoint blockadeimmunogenicityimprovedimproved outcomeinnovationmouse modelneoplastic cellnovelpembrolizumabphase I trialpreclinical studyprogrammed cell death ligand 1programmed cell death protein 1standard carestandard of caresuccesstherapeutic HPV vaccinetherapeutic proteintreatment responsetreatment strategytumortumor microenvironmentuptakevaccine trial
中文摘要
项目摘要/摘要:目前IIB-IVA期宫颈癌的护理标准包括。
化疗药物顺铂联合局部放射治疗。然而,大多数患者的前五年生存率较低。
IIB-IVA期宫颈癌患者的比例约为30%,这表明需要一个额外的综合治疗策略。
免疫疗法)是改善患者预后的必要手段。我们最近发现,化疗需要顺铂。
放射治疗可能会诱导肿瘤局部树突状细胞的短暂聚集,从而创造一个新的机会之窗。
其中瘤内注射蛋白质/多肽和抗原可以有效地抑制肿瘤的发生和扩大局部肿瘤。
抗原特异性的CD8+T细胞,正在引导人们获得协同的治疗和抗肿瘤的效果。此外,这一新的组合。
治疗导致肿瘤中免疫抑制的间质细胞产生抗原性多肽,从而导致肿瘤的发生。
因此,他们很容易受到抗原特异的CD8+T细胞介导的细胞杀伤的影响。加在一起,这可能会导致更有效的结果。
抗原特异的CD8+CD8+T细胞参与免疫应答和抗肿瘤效应。TTA-CIN是一种新的融合蛋白。
由HPV16、L2-E7-E6和HPV16组成,作为一种可过滤的蛋白质聚集物使用,以促进人类抗原的摄取。
展示细胞。这是因为宫颈癌患者很难接受注射治疗,而同步放化疗则是最好的治疗方法。
IIB-IVA期宫颈癌的标准护理方案,我们将继续为IIB-IVA期宫颈癌患者接种疫苗。
CIN在他们最新的放化疗期间接受了治疗。几项最新的临床试验表明,TA-CIN具有非常出色的安全性。
简介。随着最近一种新型抗PD-1抗体Pembrolizumab的获得批准,Pembrolizumab将用于治疗晚期宫颈癌。
我们将继续评估ITT、TA-CIN的疫苗接种方案,并辅之以免疫检查站、封锁和治疗方案,以期实现这一目标。
在一种全新的自发性宫颈阴道癌的临床前治疗中,增强了患者的免疫功能和治疗反应。
模型。本研究的具体目的是:(1)评价新诺明在给药过程中的安全性。
HPV16(+)或HPV16(-)的宫颈癌患者需要放化疗;;(2)是HPV16的特征。
在宫颈癌IIB-IVA期,E6/E7特异性T细胞介导的免疫应答和L2特异性体液免疫应答。
患者接受了TA-;的免疫接种(3),以确定他们的免疫干细胞亚群是否正在向肿瘤周围渗透。
Bed是HPV16相关临床分期IIB-IVA中PPD-1和PPD-L1的局部表达,以及肿瘤细胞和死亡细胞的凋亡。
宫颈癌患者正在接受;疫苗接种;HPV16(+)和HPV16(+)是抗原特异性的。
CD8+T细胞介导的免疫应答和抗肿瘤治疗作用在一种自发性的HPV16 E6/E7-中被证实。
表达宫颈阴道癌的动物模型采用TIA-TA-CIN治疗,接种疫苗后接种疫苗,或不设置检查站。
封锁和治疗。总而言之,这项新的提议利用了诱导的暂时允许的肿瘤和微环境。
通过化疗和提高临床级甲氨蝶呤的可获得性,可能会增强HPV特异性免疫应答和免疫应答。
抗肿瘤药物对宫颈癌患者的IIB-IVA期疗效显著。这一研究可能会导致人们找到一种新的、安全的免疫疗法。
补充放化疗,这不仅对宫颈癌患者有好处,而且可能也是预防癌症的有效手段。
其他与HPV相关的恶性肿瘤。
英文摘要
Project Summary/Abstract: The current standard-of-care for stage IIB-IVA cervical cancer includes the
chemotherapeutic drug, cisplatin, in conjunction with local radiotherapy. However, the five-year survival in most
stage IIB-IVA cervical cancer patients is ~30%, suggesting that an additional treatment strategy (e.g.
immunotherapy) is needed to improve patient outcomes. We recently found that chemotherapy with cisplatin or
radiotherapy induce a transient accumulation of dendritic cells in tumor loci that creates a window-of-opportunity
wherein intratumoral (i.t.) protein/peptide antigen administration can effectively prime and expand local tumor
antigen-specific CD8+ T cells, leading to synergistic therapeutic antitumor effects. Furthermore, this combination
treatment leads to the presentation of antigenic peptide by immunosuppressive stromal cells of the tumor, which
are thus rendered susceptible to antigen-specific CD8+ T cell-mediated killing. Together, this results in potent
antigen-specific CD8+ T cell immune responses and antitumor effects. TA-CIN is a tandem fusion protein
composed of HPV16 L2-E7-E6 and is administered as a filterable aggregrate to promote uptake by antigen-
presenting cells. Because cervical cancer is accessible to injection and concurrent chemoradiation serves as the
standard care for stage IIB-IVA cervical cancer, we will vaccinate stage IIB-IVA cervical cancer patients with TA-
CIN i.t. during their chemoradiotherapy. Several clinical trials indicate that TA-CIN has an outstanding safety
profile. With the recent approval of an anti-PD-1 antibody, Pembrolizumab, to treat advanced cervical cancer,
we will evaluate i.t. TA-CIN vaccination with concomitant immune checkpoint blockade therapy to achieve
enhanced immune and therapeutic responses in a novel spontaneous cervicovaginal carcinoma preclinical
model. The Specific Aims of this study are to (1) evaluate the safety of TA-CIN i.t. administration during
chemoradiation in patients with stage IIB-IVA HPV16(+) or HPV16(–) cervical cancer;; (2) characterize HPV16
E6/E7-specific T cell-mediated and L2-specific humoral immune responses in stage IIB-IVA cervical cancer
patients i.t. vaccinated with TA-CIN;; (3) determine the subset population of immune cells infiltrating the tumor
bed, local expression of PD-1 and PD-L1, and apoptotic tumor cell death in HPV16-associated stage IIB-IVA
cervical cancer patients receiving i.t. TA-CIN vaccination;; and (4) characterize the HPV16(+) antigen-specific
CD8+ T cell-mediated immune responses and therapeutic antitumor effects in a spontaneous HPV16 E6/E7-
expressing cervicovaginal carcinoma model treated with i.t. TA-CIN vaccination with or without checkpoint
blockade treatment. In sum, this proposal exploits the temporally-permissive tumor microenvironment induced
by chemoradiation and the availability of clinical-grade TA-CIN to potentially enhance HPV-specific immunity and
antitumor effects in stage IIB-IVA cervical cancer patients. This may lead to a safe new immunotherapy to
complement chemoradiation, which not only benefits cervical cancer patients, but may also be effective against
other HPV-associated malignancies.
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专著(0)
科研奖励(0)
会议论文
Admin-Core-001
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批准号:10707661
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依托单位:
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海外基金