A Phase 1/1b Study of Enhancement of Immune Reconstitution and Vaccine Responses With Administration of Recombinant Human IL-7-hyFc (NT-I7) in Older Subjects Following Chemotherapy
试验速览
- 阶段
- 1 期
- 状态
- 撤回
- 试验地点
- 2
- 主要终点
- Phase 1: Safety of NT-I7 in elderly patients after chemotherapy
研究概览
简要总结
Background:
People with cancer, and especially older people, have a weakened immune system (the defense system of the body). This is often caused by the treatments for cancer. Older cancer survivors are therefore more prone to getting infections, some of which are preventable through vaccines. But because their immune systems are weakened, their response to vaccines is poor. Researchers want to see if a new drug, NT-I7, can help.
Objective:
To see if NT-I7 can boost the immune system.
Eligibility:
Adults 60 and older who have recently finished chemotherapy for breast, colorectal, or bladder cancer.
Design:
Participants will be screened with a physical exam, medical history, and blood and urine samples. Their heart s electrical activity will be checked. They will have an ultrasound of their spleen. They may give a tissue sample from a previous biopsy.
Participants in phase 1a of the study will get 1 dose of NT-I7. It will be given by injection with a needle into the muscle of the upper arm, thigh, or buttocks.
Participants in phase 1b will get 5 vaccines over a few months. They may get an optional booster and/or 6th vaccine. They will also get NT-I7.
Participants will repeat the screening tests during the study. They may get a peripheral intravenous catheter in a vein in their hand or arm for blood draws.
Participants may have apheresis. For this, blood is taken from an arm vein. The white blood cells are separated from the blood. The rest of the blood, minus the white blood cells, is returned into a vein in the other arm. A catheter may be used.
Participants will have follow-up visits for 1 year.
详细描述
Background:
Interleukin-7 is a homeostatic cytokine with a critical role in lymphoid homeostasis through which it exerts its immune-restorative effects, particularly re-expansion of the na(SqrRoot) ve and memory T-cell subsets.
The clinical implications of the kinetics, nature and extent of immune reconstitution defects following standard or ablative chemotherapy in older adults with cancer (in particular the lack of reconstitution of large pools of na(SqrRoot) ve T-cell with broad repertoire diversity and of memory T-cells) are not well characterized.
As chemotherapy often induces only temporary complete or partial disease responses but no cure, candidates for novel immunotherapy strategies may be significantly impeded in their responses to active immunotherapy attempts, the therapeutic potential of which is becoming increasingly utilized.
Recombinant human IL-7 (rhIL-7) may play a role in immune reconstitution and immune enhancement in various circumstances of immune insufficiency in older individuals following chemotherapy or in the context of enhancing cancer immunotherapy or during immune senescence.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Sequential
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 60 Years 至 —（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
Phase 1: Safety of NT-I7 in elderly patients after chemotherapy
时间窗: 28 days after treatment
List of adverse events and frequency
Phase 1b: Evaluate and quantify if NT-I7 at optimal biological dose (OBD) has impacts on specific immune responses to vaccines
时间窗: day 42 and day 106
vaccine titers
次要结局
未报告次要终点