Advanced MRI for Visualization and Quantification of the Tumor Immune Microenvironment (TIME) in Glioblastoma
试验速览
- 阶段
- 3 期
- 状态
- 招募中
- 入组人数
- 15
- 试验地点
- 1
- 主要终点
- Mean diffusion-relaxation correlation spectrum imaging (DR-CSI) value
研究概览
简要总结
This phase III trial is evaluating whether a combination of three advanced magnetic resonance imaging (MRI) techniques, including chemical exchange saturation transfer (CEST) MRI, diffusion-relaxation correlation spectrum imaging (DR-CSI), and ferumoxytol-enhanced magnetic resonance imaging (Fe-MRI) are effective as non-invasive methods for assessing the cells and proteins that surround and interact with tumor cells (the tumor immune microenvironment) in patients with glioblastoma. Researchers understand that some types of brain tumors are harder to treat than others, but the reasons for this are not known in many cases. CEST MRI uses differences in the tissue microenvironment, like protein concentration or intracellular pH, to generate contrast differences. DR-CSI detects microstructural changes in tissue associated with immune cells infiltrating the tumor. Fe-MRI uses ferumoxytol as a contrast agent with MRI. Contrast agents are substances that are injected into the body and taken up by certain tissues, making the tissues easier to see in imaging scans. More advanced imaging techniques like CEST, DR-CSI, and Fe-MRI may offer less invasive methods than surgery or biopsy for helping researchers understand the tumor immune microenvironment in patients with glioblastoma, which may help researchers determine why some tumors are more resistant to treatment.
详细描述
PRIMARY OBJECTIVE:
I. To establish the biological validation of advanced MRI as a non-invasive imaging modality for assessing the tumor immune microenvironment (TIME) in glioma.
SECONDARY OBJECTIVES:
I. Conduct more detailed correlation explorations focusing on relevant subpopulations, such as cluster of differentiation 4 (CD4+) versus ( cluster of differentiation 8 (CD8+) T cells and M1- versus M2-like tumor-associated macrophages (TAMs).
II. Perform exploratory correlation analysis between tumor-averaged imaging measures with systemic immunological markers (T cell activation and interferon pathway signaling), to improve our understanding of the relationship between local tissue immune environment and systemic immune response in glioma 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
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male or female ≥ 18 years of age
- •Documentation of a confirmed or suspected diagnosis of glioblastoma
- •The participant is scheduled to undergo standard of care surgical tumor resection and/or biopsy
- •The participant has a measurable contrast-enhancing lesion (> 1ml) based on the most recent MRI prior to resection/biopsy
排除标准
- •Presence of a condition or abnormality that in the opinion of the investigator would compromise the safety of the patient or the quality of the data
- •Individuals who cannot tolerate MRI scan, or with contraindication to 3-Tesla (3T) MRI
- •Any abnormalities that would be a contraindication to iron-oxide nanoparticle-based contrast agent. Medical history will be gathered from the patient and clinical chart. The information will be reviewed with medical professionals (Doctor of Medicine [MD]) to determine the eligibility of the patient
研究组 & 干预措施
Diagnostic (CEST MRI, DR-CSI, Fe-MRI)
Patients undergo research CEST MRI and DR-CSI over 30 minutes at research visit 1, up to 28 days before standard of care surgery/biopsy. Following research CEST MRI and DR-CSI at research visit 1, patients receive ferumoxytol IV over 10-15 minutes. Approximately 24-48 hours later, patients undergo Fe-MRI over 15 minutes at research visit 2. Patients also undergo standard of care clinical MRI and collection of blood samples on study.
干预措施: Biospecimen Collection (Procedure)
Diagnostic (CEST MRI, DR-CSI, Fe-MRI)
Patients undergo research CEST MRI and DR-CSI over 30 minutes at research visit 1, up to 28 days before standard of care surgery/biopsy. Following research CEST MRI and DR-CSI at research visit 1, patients receive ferumoxytol IV over 10-15 minutes. Approximately 24-48 hours later, patients undergo Fe-MRI over 15 minutes at research visit 2. Patients also undergo standard of care clinical MRI and collection of blood samples on study.
干预措施: Chemical Exchange Saturation Transfer Magnetic Resonance Imaging (Procedure)
Diagnostic (CEST MRI, DR-CSI, Fe-MRI)
Patients undergo research CEST MRI and DR-CSI over 30 minutes at research visit 1, up to 28 days before standard of care surgery/biopsy. Following research CEST MRI and DR-CSI at research visit 1, patients receive ferumoxytol IV over 10-15 minutes. Approximately 24-48 hours later, patients undergo Fe-MRI over 15 minutes at research visit 2. Patients also undergo standard of care clinical MRI and collection of blood samples on study.
干预措施: Diffusion-Relaxation Correlation Spectrum Imaging (Procedure)
Diagnostic (CEST MRI, DR-CSI, Fe-MRI)
Patients undergo research CEST MRI and DR-CSI over 30 minutes at research visit 1, up to 28 days before standard of care surgery/biopsy. Following research CEST MRI and DR-CSI at research visit 1, patients receive ferumoxytol IV over 10-15 minutes. Approximately 24-48 hours later, patients undergo Fe-MRI over 15 minutes at research visit 2. Patients also undergo standard of care clinical MRI and collection of blood samples on study.
干预措施: Electronic Health Record Review (Other)
Diagnostic (CEST MRI, DR-CSI, Fe-MRI)
Patients undergo research CEST MRI and DR-CSI over 30 minutes at research visit 1, up to 28 days before standard of care surgery/biopsy. Following research CEST MRI and DR-CSI at research visit 1, patients receive ferumoxytol IV over 10-15 minutes. Approximately 24-48 hours later, patients undergo Fe-MRI over 15 minutes at research visit 2. Patients also undergo standard of care clinical MRI and collection of blood samples on study.
干预措施: Ferumoxytol (Drug)
Diagnostic (CEST MRI, DR-CSI, Fe-MRI)
Patients undergo research CEST MRI and DR-CSI over 30 minutes at research visit 1, up to 28 days before standard of care surgery/biopsy. Following research CEST MRI and DR-CSI at research visit 1, patients receive ferumoxytol IV over 10-15 minutes. Approximately 24-48 hours later, patients undergo Fe-MRI over 15 minutes at research visit 2. Patients also undergo standard of care clinical MRI and collection of blood samples on study.
干预措施: Magnetic Resonance Imaging (Radiation)
结局指标
主要结局
Mean diffusion-relaxation correlation spectrum imaging (DR-CSI) value
时间窗: perioperatively/periprocedurally
Mean DR-CSI values will be correlated with T cell densities. Pearson's or Spearman's correlation coefficients will be used depending on variable distributions.
Ferumoxytol-enhanced magnetic resonance imaging (Fe-MRI) measures
时间窗: perioperatively/periprocedurally
Fe-MRI measures will be correlated with tumor-associated macrophage densities and iron staining concentration. Pearson's or Spearman's correlation coefficients will be used depending on variable distributions.
Chemical exchange saturation transfer (CEST) values
时间窗: perioperatively/periprocedurally
CEST values will be correlated with tumor burden and immune suppression markers. Pearson's or Spearman's correlation coefficients will be used depending on variable distributions.
次要结局
未报告次要终点