A Pilot Study of an Implantable Microdevice for In Situ Evaluation of Drug Response in Patients With Primary Brain Tumors
试验速览
- 阶段
- 早期 1 期
- 状态
- 招募中
- 发起方
- 入组人数
- 12
- 试验地点
- 2
- 主要终点
- Number of Participants with Microdevice Related Adverse Events as Assessed by CTCAE Volume 5.0
研究概览
简要总结
This pilot study will assess the safety and feasibility of using an implantable microdevice to measure local intratumor response to chemotherapy and other clinically relevant drugs in malignant brain tumors.
- The device involved in this study is called a microdevice.
- The drugs used in this study will only include drugs already used systemically for the treatment of gliomas.
详细描述
This research study is a Pilot Study, which is the first time investigators are examining this study device in brain tumors.
The FDA (the U.S. Food and Drug Administration) has not approved the microdevice as a treatment for any disease.
Investigators are studying the safety of the microdevice and the effects of different drugs for each specific tumor. Brain tumors are known to be very different from each other and respond differently to different drugs. It would be very helpful to find out what drugs have the best chance of working in each specific tumor.
This research study involves drugs that are released by a small device, as small as the tip of a needle, that is inserted into the tumor at the time of surgery and is removed at the end of the surgery. The goal of this research study is to prove that microdevices can be used to find out which drugs have better effects on treating malignant brain tumors.
Participants will be in this research study for up to 30 days.
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
- •Patients must have operable supratentorial tumor presumed to be WHO grade II-IV glioma (Astrocytoma, Oligodendroglioma, Anaplastic Astrocytoma, Anaplastic Oligodendroglioma, or Glioblastoma) based on radiological evidence at MRI, where a gross total or partial surgical resection is intended.
- •Histological confirmation of WHO grade II-IV glioma at time of intraoperative frozen analysis (for newly diagnosed tumors). This is not necessary in cases where a histopathologic diagnosis is already available from prior surgeries/biopsies.
- •Participants must be 18 years of age or older.
- •Karnofsky Performance Score ≥ 60 (Appendix C).
- •Participants must have normal organ and marrow function as defined below:
- •Leukocytes ≥ 3,000/mcL
- •Absolute neutrophil count ≥ 1,500/mcL
- •Platelets ≥ 100,000/mcL
- •Total bilirubin within normal institutional limits
- •AST(SGOT)/ALT(SGPT) ≤ 2.5 × institutional upper limit of normal
- •Creatinine within normal institutional limits OR
- •Creatinine clearance ≥ 60 mL/min/1.73 m2 for participants with creatinine levels above institutional normal.
- •Participants must be evaluated by a neurosurgeon who will determine the feasibility of microdevice implantation based on clinical history, extent, and anatomical location of the tumor.
- •Because participants will be exposed to microdoses of therapeutic agents only in a localized setting and for a short period of time (2-4 hours), the risk of interaction with other drugs routinely assumed by participants is considered not applicable. Thus, participants receiving any medications or substances that are inhibitors or inducers of CYP450 enzymes remain eligible.
- •The effects of the microdevice on the developing human fetus are unknown. For this reason and because the therapeutic agents used in this trial are known to be teratogenic, women of child-bearing potential must agree to have a negative serum pregnancy test within 48 hours prior to registration. Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study and for the duration of study participation.
- •Ability to understand and the willingness to sign a written informed consent document.
排除标准
- •Participants who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier.
- •Participants who are receiving any other investigational agents.
- •History of allergic reactions attributed to compounds of similar chemical or biologic composition to the microdevice or any agents used in the study.
- •Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
- •Pregnant women are excluded from this study because agents released by the microdevice have the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with the agents used in this study, breastfeeding should be discontinued if the mother is treated in the study for a total of 14 days after removal of the microdevice.
- •Tumor size < 5 cm
- •Tumor located in deep brain structures (e.g. thalamus, brainstem).
- •Uncorrectable bleeding or coagulation disorder known to cause increased risk with surgical procedures.
- •If there are significant risk factors (e.g. high risk of venous thrombosis, pulmonary embolism, stroke or myocardial infarction) precluding the safe cessation of anticoagulation medication as per SIR guidelines, patients will be excluded from the trial.
结局指标
主要结局
Number of Participants with Microdevice Related Adverse Events as Assessed by CTCAE Volume 5.0
时间窗: 1 Day
Failure" from a safety standpoint will be considered any of the following: * Any grade 3 or higher adverse events associated with microdevice placement or retrieval. * Any combination of more than two grade 2 adverse events. Failure" from a safety standpoint will be considered any of the following:
Success Rate of Microdevice Retrieval
时间窗: 1 day
Defined as the ability to retrieve the microdevice with sufficient tissue, of sufficient quality, for downstream histopathology analysis and interpretation of at least 50% of the microdevice reservoirs.
次要结局
- Measure Local Intratumor Response to Different Agents(1 Day)
- Correlate Tissue Genetic Features with Drug Response(1 Day)
研究者
Oliver Jonas
Associate Professor
Brigham and Women's Hospital