A Phase II Trial to Evaluate the Ability of a Dendritic Cell Vaccine to Immunize Melanoma or Epithelial Cancer Patients Against Defined Mutated Neoantigens Expressed by the Autologous Cancer
试验速览
- 阶段
- 2 期
- 状态
- 终止
- 入组人数
- 1
- 试验地点
- 2
- 主要终点
- Percentage of Patients Who Had a Clinical Response (Complete Response (CR) + Partial Response (PR)) to Treatment
研究概览
简要总结
Background:
Exomes are the parts of deoxyribonucleic acid (DNA) that make proteins. Researchers are finding a way to read the letters in the exome. Incorrect letters are called mutations. Tumors contain specific mutations. Researchers can find these mutations in tumors to make treatments. Researchers want to use pieces of participants tumors to find the tumor-specific mutations. They also will take participants white blood cells to make a vaccine that they hope will shrink the tumors.
Objectives:
To see if dendritic vaccine tumor-fighting cells are safe and can cause certain cancer tumors to shrink.
Eligibility:
Adults ages 18-70 who have metastatic melanoma or metastatic epithelial cancer
Design:
The first part of this study was done under protocol 03-C-0277. In that study, white blood cells and pieces of participants' tumors were taken to make a vaccine.
In this study, participants will get a vaccine every 2 weeks for 8 weeks. It will be given both in a vein and under the skin. At each visit, participants will have a physical exam and have blood taken. They will talk about any side effects they have.
After treatment ends, participants will have many follow-up visits for the first year, then once each year after that. Visits will last up to 2 days each. They will include lab tests, imaging studies, and a physical exam. Blood will be taken at each visit. At the first follow-up visit, participants may have leukapheresis, which they also had as part of protocol 03-C-0277. Participants may not have to return to the Clinical Center for these visits.
详细描述
Background:
- Therapeutic vaccination against cancer has proven very challenging with little clinical benefit.
- Vaccines against non-viral tumors have mainly targeted differentiation antigens, cancer testis antigens, and overexpressed antigens. However negative selection in the thymus against these normal nonmutated antigens severely limits the ability to generate high avidity anti-cancer T cells. Such depletion can impair their antitumor activity and limit tumor elimination.
- The National Cancer Institute Surgery Branch (NCI SB) has developed a pipeline for the identification of immunogenic T cell epitopes derived from neoantigens.
- In recent studies, we identified the neoantigens recognized by tumor infiltrating lymphocytes (TIL) that mediated regression in patients with metastatic cancer. Using whole exome sequencing of a resected metastatic nodule followed by high throughput immunologic screening, we were able to demonstrate that tumor regressions were associated with the recognition by the administered TIL of unique somatic mutations that occurred in the cancer.
- We, therefore, aim to use this pipeline to identify immunogenic neoantigens from epithelial cancer patients and to use these defined epitopes for a personalized therapeutic dendritic cell (DC) vaccine.
Objectives:
-Primary objectives:
--To determine the clinical response rate in patients with metastatic melanoma or epithelial cancer who receive this DC vaccine
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Percentage of Patients Who Had a Clinical Response (Complete Response (CR) + Partial Response (PR)) to Treatment
时间窗: up to 6 months
Response was assessed by the RECIST v1.1. Complete Response is disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Partial Response is at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum of diameters.
次要结局
- Number of Participants With Serious and Non-serious Adverse Events(Date treatment consent signed to date off study, approximately 6 months and 11 days)
- Number of Participants With 2-3 Fold Increase From Baseline in Reactivity to Circulating Antigen-specific T Cells to the Mutated Peptide Compared to the Non-mutated Peptide(Day 0, Day 14 (± 5 d), Day 28 (± 5 d), and Day 42 (± 5 d))
研究者
Steven Rosenberg, M.D.
Principal Investigator
National Cancer Institute (NCI)