Phase I/II Study of Oral S-1 Plus Irinotecan in Patients With Advanced Gastric Cancer
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To assess the usefulness of irinotecan plus S-1 therapy based on the antitumor effect and survival period. by performing a phase I/II study of this combination in patients with inoperable or with postoperative gastric cancer
Condition or disease
Drug: irinotecanDrug: S-1
Phase 1Phase 2
A multicenter Open-label, single-arm, phase I/II clinical trial is conducted on patients with histological stage IV gastric cancer given irinotecan plus S-1. The usefulness of this regimens as 1st line therapy for gastric cancer was evaluated by the disease-free survival rate (DFR), overall survival rate (OS), incidence and severity of adverse event.
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Ages Eligible for Study:
18 Years to 75 Years (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
・ Eligibility criteria
Histological diagnosis of gastric adenocarcinoma.
Measurable or assessable lesions.
Age: 18 ~ 75 years.
Performance Status (ECOG): 0 ~ 2.
No prior chemotherapy or only one regimen of previous chemotherapy (with a washout period >4 weeks after the final day of the previous therapy). Adjuvant chemotherapy is not defined as previous therapy.
No history of treatment with CPT-11 or S-1.
No history of radiotherapy to the abdomen.
Oral intake of S-1 is possible.
Adequate function of major organs (bone marrow, heart, lungs, liver etc.). WBC 3,500/mm3 and 12,000/mm3. Hb 10.0 g/dl. Platelet count 100,000/mm3. GOT and GPT 2.5times the upper limit of normal (excluding liver metastasis). T-Bil 2.0mg/dl. Creatinine <1.5 mg/dl (but if it is 1.0 ~ 1.5 mg/dl, the dose of S-1 can be decreased according to the dose reduction criteria to allow registration in the trial). Normal ECG (not considering clinically unimportant arrhythmias and ischemic changes).
Predicted survival for >3 months.
Able to give written informed consent
Severe pleural effusion or ascites.
Metastasis to the central nervous system (CNS).
Active gastrointestinal bleeding.
Diarrhea (watery stools).
Uncontrolled ischemic heart disease.
Serious complications (such as intestinal paralysis, intestinal obstruction, interstitial pneumonia or pulmonary fibrosis, uncontrolled diabetes mellitus, heart failure, renal failure, or hepatic failure).
Active multiple cancer.
Severe mental disorder.
Pregnancy, possible pregnancy, or breast-feeding.
Judged to be ineligible for this protocol by the attending physician.