Phase I/II Study of Oral S-1 Plus Irinotecan in Patients With Advanced Gastric Cancer

Phase I/II Study of Oral S-1 Plus Irinotecan in Patients With Advanced Gastric Cancer: Hokkaido Gastrointestinal Cancer Study Group HGCSG0101

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

Study Overview

• Status: Completed
• Conditions: Gastric Cancer
• Intervention / Treatment: Drug: S-1; Drug: irinotecan

Detailed Description

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.

• Study Type: Interventional
• Enrollment: 24
• Phase: Phase 2; Phase 1

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 75 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

・ Eligibility criteria

1. Histological diagnosis of gastric adenocarcinoma.
2. Measurable or assessable lesions.
3. Age: 18 ~ 75 years.
4. Performance Status (ECOG): 0 ~ 2.
5. 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.
6. No history of treatment with CPT-11 or S-1.
7. No history of radiotherapy to the abdomen.
8. Oral intake of S-1 is possible.
9. 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).
10. Predicted survival for >3 months.
11. Able to give written informed consent

Exclusion Criteria:

1. Severe pleural effusion or ascites.
2. Metastasis to the central nervous system (CNS).
3. Active gastrointestinal bleeding.
4. Active infection.
5. Diarrhea (watery stools).
6. Uncontrolled ischemic heart disease.
7. Serious complications (such as intestinal paralysis, intestinal obstruction, interstitial pneumonia or pulmonary fibrosis, uncontrolled diabetes mellitus, heart failure, renal failure, or hepatic failure).
8. Active multiple cancer.
9. Severe mental disorder.
10. Pregnancy, possible pregnancy, or breast-feeding.
11. Flucytosine treatment
12. Gilbert's syndrome.
13. Judged to be ineligible for this protocol by the attending physician.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
objective tumor response

Secondary Outcome Measures

Outcome Measure
Response duration, time to progression, overall survival, and safety will also be assessed.

Collaborators and Investigators

• Sponsor: Hokkaido Gastrointestinal Cancer Study Group
• Investigators: Study Chair: Masahiro Asaka, MD, PhD, Hokkaido Gastrointestinal Cancer Study Group

Study record dates

Study Major Dates

• Study Start: May 1, 2000
• Study Completion: April 1, 2003

Study Registration Dates

• First Submitted: September 13, 2005
• First Submitted That Met QC Criteria: September 13, 2005
• First Posted (Estimate): September 21, 2005

Study Record Updates

• Last Update Posted (Estimate): April 21, 2006
• Last Update Submitted That Met QC Criteria: April 19, 2006
• Last Verified: April 1, 2006

More Information

Terms related to this study

• Keywords: gastric cancer; Irinotecan,; S-1,; Phase I/II,
• Additional Relevant MeSH Terms: Digestive System Diseases; Neoplasms; Neoplasms by Site; Gastrointestinal Neoplasms; Digestive System Neoplasms; Gastrointestinal Diseases; Stomach Diseases; Stomach Neoplasms; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Antineoplastic Agents; Topoisomerase Inhibitors; Topoisomerase I Inhibitors; Irinotecan
• Other Study ID Numbers: HGCSG0002