Phase II Study of Chemo-Radiation-Induced Abscopal Effect in Metastatic Breast Cancer and in Other Metastatic Sites of Solid Tumors
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 41
- 主要终点
- The proportion of patients with an abscopal response assessed at 7-8 weeks after the initiation of treatment.
研究概览
简要总结
- To induce immunity-mediated tumor response outside the radiation field (abscopal effect) after chemo-radiation of a metastatic site in metastatic breast cancer patients.
- To monitor the induction of a T cell response.
- To explore the role of PET scanning to assess tumor responses/abscopal effect.
详细描述
- To induce immunity-mediated tumor response outside the radiation field (abscopal effect) after chemo-radiation of a metastatic site in a pilot study of metastatic breast and other metastatic solid tumors.
- To monitor the induction of a T cell response in patients with metastatic breast cancer.
- To explore the role of PET scanning to assess tumor response/abscopal effect.
Eligible are women with metastatic breast cancer and patients with other metastatic solid tumors who have achieved stable disease or have disease progression after systemic therapy and have at least three separate measurable sites of disease. Extent of metastatic disease is recorded both at CT and PET scanning. Radiation is given during systemic therapy to one of the lesions, 35 Gy in ten fractions over a two week interval, conformally to maximally spare normal tissue. GM-CSF treatment is given daily for fourteen days. At day 22 radiation is re-started and the same radiation dose is delivered to a second metastatic site, again with GM-CSF. Abscopal response is evaluated by assessing clinical and PET response in the non-irradiated measurable metastatic sites. A Phase II clinical trial based on an optimum two-stage Phase II Simon design is used to conduct this pilot study. Ten patients will be treated in Stage one; if there are no abscopal responses, the trial will be terminated. If there are one or more abscopal responses in Stage One, the trial will proceed to enroll an additional 19 patients.
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
- 19 Years 至 90 Years（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Patients with histologically confirmed breast cancer or other cancer which is persistent and metastatic or recurrent and metastatic.
- •Patients with a history of treatment for other prior malignancy will be eligible, provided they remain disease-free > 2 years after initial treatment, or were treated for non-melanoma skin cancer, or in situ cervical cancer.
- •Patients must have at least 3 distinct measurable metastatic sites at least 1 cm of larger in their largest diameter.
- •Age >18 years.
- •ECOG performance status <2 (Karnofsky >50%).
- •Life expectancy > 3 months.
排除标准
- •Patients who have had immunotherapy within 4 weeks prior to entering the study.
- •Patients who have had prior allergic reaction to GM-CSF
- •Patients on steroid therapy or other immunosuppressive therapy.
- •Patients undergoing therapy with other investigational agents.
- •Patients with known brain metastases can be included in this clinical trial but brain lesions are not eligible as target or non target lesion.
- •Uncontrolled inter-current illness including, but not limited to ongoing or active infection, symptomatic congestive heart failure, myocardial infarction within the past 6 months, unstable angina pectoris, or unstable cardiac arrhythmia requiring assessment for clinical intervention.
研究组 & 干预措施
Radiation therapy
Patients with metastatic breast cancer and other metastatic solid tumors receiving single-agent chemotherapy will receive 3.5 Gy/fraction to a total dose of 35 Gy/10 fractions over 2 weeks with concurrent systemic therapy
Systemic agents are either capecitabine (Xeloda), paclitaxel, docitaxel or taxol
干预措施: Radiation therapy (Radiation)
Radiation therapy
Patients with metastatic breast cancer and other metastatic solid tumors receiving single-agent chemotherapy will receive 3.5 Gy/fraction to a total dose of 35 Gy/10 fractions over 2 weeks with concurrent systemic therapy
Systemic agents are either capecitabine (Xeloda), paclitaxel, docitaxel or taxol
干预措施: Xeloda (Drug)
Radiation therapy
Patients with metastatic breast cancer and other metastatic solid tumors receiving single-agent chemotherapy will receive 3.5 Gy/fraction to a total dose of 35 Gy/10 fractions over 2 weeks with concurrent systemic therapy
Systemic agents are either capecitabine (Xeloda), paclitaxel, docitaxel or taxol
干预措施: paclitaxel (Drug)
结局指标
主要结局
The proportion of patients with an abscopal response assessed at 7-8 weeks after the initiation of treatment.
时间窗: week 7- week 8
次要结局
- The number of participants with adverse events from the date of enrollment until 12 years from the opening of the study.(year 0 - year 12)
- The proportion of patients alive with abscopal responses from the date of enrollment until date of death from any cause, assessed up to 12 years from the opening of the study.(year 0- year 12)