Evaluation of Prognostic and Predictive Values of Bespoke Circulating Tumor DNA Assay for Recurrent and Response Monitoring in Patients With Advanced Epithelial Ovarian Cancer
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 139
- 试验地点
- 1
- 主要终点
- Progression free survival (PFS)
研究概览
简要总结
This prospective observational study is to assess the dynamics of circulating tumor DNA (ctDNA) in patients with advanced epithelial ovarian cancer (EOC) undergoing surgery, adjuvant chemotherapy, followed by poly adenosine diphosphate-ribose polymerase (PARP) inhibitors until disease progression or the end of the study. All patients will be closely monitored throughout the course of disease by a tumor-informed bespoke ctDNA assay as well as traditional methods of surveillance, such as CA125 and imaging. This study may provide preliminary evidence for ctDNA-guided treatment decisions in future clinical practice.
详细描述
This observational study is designed for exploring prognostic and predictive values of the tumor-informed bespoke ctDNA assay in advanced EOC. Newly diagnosed patients who are eligible for radical surgery or relapsed patients from platinum-based adjuvant chemotherapy who are eligible for secondary cytoreductive surgery will be enrolled. The patients will be treated with SOC adjuvant therapies followed by PARP inhibitor for maintenance.
To evaluate ctDNA dynamics, tumor tissue collected from surgery will be sequenced with whole-exome sequencing (WES) to design patient-specific 16-plex panel. At planned monitoring timepoints, blood samples will be drawn, and ctDNA will be sequenced with ultra-deep ctDNA high-throughput sequencing methods.
Traditional surveillance methods will be applied as comparison, including but not limited to carbohydrate antigen 125 (CA-125)/ human epididymal protein 4 (HE4)/ carcinoembryonic antigen (CEA)/ carbohydrate antigen 199 (CA199), etc., as well as standard imaging.
Survival analyses will be conducted based on ctDNA status (positive/negative) after surgery. Recurrence rate of each subgroup, positive predictive values and negative predictive values etc. will be examined. Changes in ctDNA levels (ΔctDNA) during treatment will be used to evaluate the efficacy of maintenance therapy comparing traditional biomarkers,
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Female, over 18 years of age;
- •Patients with advanced epithelial ovarian cancer who are eligible for radical surgery;
- •Patients with advanced epithelial ovarian cancer relapsed from platinum-based therapies and eligible for secondary cytoreductive surgery;
- •The subjects agree to sign the informed consent and agree to use their samples and data for related scientific research;
- •Subjects agree to collect tissue samples and peripheral blood samples for whole exon sequencing and ctDNA monitoring.
排除标准
- •Patients who are diagnosed, tested or treated for cancer other than ovarian cancer within 2 years (except for basal skin or squamous cell cancer that has been definitively treated);
- •Patients in pregnancy;
- •Patients with a history of blood transfusion within 3 months before enrollment;
- •Newly diagnosed patients who only received laparoscopic surgery;
- •Patients received chemotherapy or other anti-tumor therapy before surgery.
结局指标
主要结局
Progression free survival (PFS)
时间窗: Two years
Determine PFS in ctDNA positive versus ctDNA negative groups.
次要结局
- Overall Survival (OS)(Two years)
研究者
Zhong Zheng MD
Director of Gynecologic Oncology
Fudan University