当UV1癌症疫苗遇到免疫检查点封锁时:免疫反应是积极的,但临床结果是负的
Guo Zhao1, Shuhang Wang1, Ning Li1
1Clinical Trial Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
Med (New York, N.Y.)
|July 12, 2025
概括
结合Pembrolizumab的UV1疫苗并没有改善头癌患者的治疗结果. 虽然疫苗激活了T细胞,但与单独使用 pembrolizumab 相比,它没有提高临床疗效.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 疫苗开发 疫苗开发
背景情况:
- 复发性/转移性头支状细胞癌 (HNSCC) 是一个重大的临床挑战.
- 布罗利祖马布单一治疗在PD-L1阳性HNSCC中显示出有效性,但需要进一步的治疗选择.
研究的目的:
- 评估新型疫苗UV1与pembrolizumab结合的疗效和安全性.
- 在PD-L1阳性复发性/转移性HNSCC.患者中评估UV1疫苗的免疫性.
主要方法:
- 第二阶段的FOCUS试验.
- UV1疫苗和pembrolizumab的联合治疗.
- 评估特异于人类端粒酶逆转录酶 (hTERT) 的T细胞反应.
- 评估临床结果,包括整体生存率和无进展生存率.
主要成果:
- 在86%的患者中,UV1疫苗诱导了hTERT特异性T细胞反应.
- 与布罗利祖马布单独治疗相比,组合治疗没有观察到临床结果的显著改善.
- UV1和pembrolizumab的组合在一般情况下被很好地容忍.
结论:
- 虽然UV1疫苗通过引起T细胞反应来证明免疫性,但它并没有转化为该患者群体中改善的临床疗效.
- 免疫激活和临床益处之间的不一致凸显了对HNSCC病原和新治疗策略的进一步研究的需要.
- 未来的疫苗设计和组合方法需要仔细考虑,以克服抵抗机制并增强抗瘤免疫力.
相关概念视频
Cancer Vaccines
517
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
517
Tumor Immunotherapy
664
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
664
Treatment Resistant Cancers
3.4K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.4K
Targeted Cancer Therapies
7.8K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.8K
Cancer Therapies
8.0K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
8.0K


