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S-1 is a novel oral fluorouracil antitumor drug that consists of tegafur which is a prodrug of 5-fluorouracil (5-FU); 5-chloro-2,4-dihydropyridine (CDHP), which inhibits dihydropyrimidine dehydrogenase (DPD) activity; and potassium oxonate (Oxo), which reduces gastrointestinal toxicity. 5-FU is metabolized by CYP2A6 and DPD. In this study, the researchers investigate the influences of differences in activities of CYP2A6 and DPD on pharmacokinetics and pharmacodynamics of S-1 and clinical outcomes in digestive organ cancer patients treated with S-1.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| S-1 | Drug |
| Measure | Description | Time Frame |
|---|---|---|
| Whether the differences in activities of CYP2A6 and DPD affect pharmacokinetics and pharmacodynamics of S-1 and clinical outcomes |
| Measure | Description | Time Frame |
|---|---|---|
| Side effect and motility of patients treated with S-1 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Naohito Shirai, MD., PhD | Contact | 81-534-2788 | naohito@hama-med.ac.jp |
| Name | Affiliation | Role |
|---|---|---|
| Naohito Shirai, MD., PhD | Department Laboratory Medicine, Hamamatsu University School of Medicine | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hamamatsu University School of Medicine | Recruiting | Hamamatsu | Shizuoka | 431-3192 | Japan |
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| ID | Term |
|---|---|
| D013274 | Stomach Neoplasms |
| D004938 | Esophageal Neoplasms |
| D010190 | Pancreatic Neoplasms |
| D003110 | Colonic Neoplasms |
| ID | Term |
|---|---|
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
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| ID | Term |
|---|---|
| C079198 | S 1 (combination) |
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| D004066 |
| Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D013272 | Stomach Diseases |
| D006258 | Head and Neck Neoplasms |
| D004935 | Esophageal Diseases |
| D004701 | Endocrine Gland Neoplasms |
| D010182 | Pancreatic Diseases |
| D004700 | Endocrine System Diseases |
| D015179 | Colorectal Neoplasms |
| D007414 | Intestinal Neoplasms |
| D003108 | Colonic Diseases |
| D007410 | Intestinal Diseases |