Liquid Biopsy in Monitoring the Neoadjuvant Chemotherapy and Operation in Gastric Cancer
Gastric Cancer, Gastro-oesophageal Junction Cancer
About this trial
This is an interventional treatment trial for Gastric Cancer focused on measuring Gastric cancer, Gastro-oesophageal junction cancer, Neoadjuvant chemotherapy, Radical gastrectomy, Circulating tumor cells, Circulating tumor DNA, Circulating cell free DNA
Eligibility Criteria
Inclusion Criteria:
- Patients with resectable or locally advanced gastric or gastro-oesophageal junction cancer(>T1 and N+) without distant metastases (M0).
- Pathological examination confirmed gastric or gastro-oesophageal junction cancer (adenocarcinoma, signet ring cell carcinoma, mucinous adenocarcinoma, squamous cell carcinoma, regardless of the degree of tissue differentiation).
- Ambulatory males or females, age ≥ 18 years.
- Karnofsky Performance Score (KPS) ≥70 or ECOG(Eastern Cooperative Oncology Group) performance status: 0 or 1.
- Patients who can tolerate PSOX neoadjuvant chemotherapy.
- Planning to undergo radical gastrectomy after neoadjuvant chemotherapy.
- With cancer lesions that can be measured according to RECIST 1.1 criteria.
- No prior antitumor treatment is allowed, including chemotherapy, radiotherapy, immune therapy or target therapy.
- Adequate organ function as defined below: Hemoglobin ≥ 9 g/dl, Absolute neutrophil count(ANC) ≥ 1.5×109/L, Platelets ≥ 100*109/L, Alkaline phosphatase( ALP) ≤ 2.5×ULN,Total bilirubin(TBIL)≤ 1.5×ULN(upper limit of normal), Renal Serum Creatinine < 1.5 ULN, Serum Albumin ≥ 30g/l.
Exclusion criteria:
- Female in pregnancy or lactation, or refuse to receive contraception measures during chemotherapy.
- With distant metastasis or peritoneal dissemination diagnosed by CT/EUS(endoscopic ultrasonography).
- Underwent prior antitumor treatment, including chemotherapy, radiotherapy, immune therapy or target therapy.
- Serious uncontrolled intercurrent infections or other serious uncontrolled concomitant disease or condition that would make the subject inappropriate for study participation.
- Clinically serious cardiac disease or pulmonary dysfunction.
- Refuse to provide blood/tissue sample.
- Other situation to be judged not adaptive to the study by investigators.
Sites / Locations
- Jiuda ZhaoRecruiting
Arms of the Study
Arm 1
Experimental
Patients receiving neoadjuvant chemotherapy.
Compare the monitoring of CTC, ctDNA and cfDNA with the results of CT scan and the blood level of CEA ,CA19-9 and CA72-4 tumor markers to explore the clinical value of dynamic detection of CTC, ctDNA and cfDNA in neoadjuvant chemotherapy and operation for locally advanced or resectable gastric or gastro-oesophageal junction cancer. Explore the clinical value of different types of CTC in neoadjuvant chemotherapy and Operation for locally advanced or resectable gastric or gastro-oesophageal junction cancer. CTC can be classified into three types: epithelial CTC, mesenchymal CTC, hybrids CTC. Explore the consistency between plasma ctDNA and tumor related DNA in pathological tissues after operation. To explore the relationship between the dynamic changes of plasma CTC, ctDNA and cfDNA levels and the prognosis of patients after operation.