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Clinical Trial Summary

This is a clinical Study to evaluate the effect, survival benefit and safety of intraperitoneal docetaxel combined with oral S-1 for advanced gastric cancer with malignant ascites.


Clinical Trial Description

Peritoneal metastasis(PM) is common in advanced gastric cancer and associated with a poor prognosis. The median survival time is 3 to 4 months and even shorter in the patients with malignant ascites. Systemic chemotherapy is considered to be less effective against peritoneal metastasis (PM) due to the existence of the blood-peritoneal barrier (BPB), which inhibits the movement of drugs from systemic circulation to the peritoneal cavity.

S-1 is one kind of oral fluoropyrimidine derivatives and has been reported to be effective on PM. Docetaxel (DTX) has a pharmacokinetic advantage after intraperitoneal(IP)delivery which is hundreds of times higher than systemic administration. The use of S-1 and docetaxel has been studied in some phase II trials. Fujiwara and Fushida reported the usefulness of IP docetaxel combined with oral S-1 regimen in gastric cancer with PM respectively,the median survival time can exceed 16 months and one year survival rate was over 70%. Therefore, the investigators suppose IP docetaxel and oral S-1 can also be effective for gastric cancer with malignant ascites and start this study.

This is a single center, open-label, prospective clinical trial. Patients with histological proven gastric cancer with ascites, who fulfill the inclusion and exclusion criteria, can be recruited in this study. Patients will be firstly received laparoscopic exploration for Peritoneal Cancer Index (PCI)score, extraction of 100ml ascites for cytology examination, and one peritoneal access port is implanted in the subcutaneous space of the lower abdomen. Then patients were treated with chemotherapy on the first day after operation, the regimen as follows: DTX is administered IP at a dose of 60 mg/m2 on day 1. DTX is diluted in 1 litre normal saline and administered through the implanted peritoneal access port over 1 hour. S-1 was administered orally twice daily at a dose of 80 mg/m2 per day for 14 consecutive days, followed by 7 days of rest. The treatment course will be repeated every three weeks until observation of disease progression or unacceptable toxicity. Before each intraperitoneal chemotherapy, investigators extract 50-100 ml ascites for cytology pathologic examination, the abdominal CT will be reviewed after every three course to evaluate the volume of ascites.

The volume of ascites before and after therapy, PCI scores, ascites cytology results, complications, side effects and conditions of survival state and follow-up will be recorded and analyzed to evaluate the effect, survival benefit and safety of this study. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02779608
Study type Interventional
Source Fudan University
Contact
Status Recruiting
Phase Phase 2
Start date January 20, 2017
Completion date June 2018

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