Clinical trial · Interventional
S-1 for 9 Months Versus 1 Year for Stage II Gastric Cancer (SMAC）
Compare S-1 for 9 Months to 1 Year as Adjuvant Chemotherapy in Stage II Gastric Cancer (SMAC）
NCT03941561CI-TRIAL-00038877recruitingPhase 3ClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The study aims to compare the efficacy and safety of S-1 for 9 months versus S-1 for 1 year as adjuvant chemotherapy after D2 resection in patients with gastric cancer. Hypothesis: For gastric patients after D2 resection, S-1 for 9 months shows non-inferiority to S-1 for 1 year in disease-free survival(DFS), overall survival (OS) and safety.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Gastric Cancer | Malignant Gastric Neoplasm | CURATED_BROADER | 0.80 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| S-1 for 1 year | Drug | — | UNRESOLVED |
| S-1 for 9 months | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- S-1 for 9 months
- description
- S-1 80-120mg daily for 14 days in 3 weeks for totally 9 months after D2 resection
- interventionNames
- Drug: S-1 for 9 months
- type
- ACTIVE_COMPARATOR
- label
- S-1 for 1 year
- description
- S-1 80-120mg daily for 14 days in 3 weeks for totally 1 year after D2 resection
- interventionNames
- Drug: S-1 for 1 year
Primary outcomes (1)
- measure
- DFS
- timeFrame
- 3-year
- description
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 75 Years
Show eligibility criteria text
Inclusion Criteria: 1. The lower age limit of research subjects 18 years old and upper age limit of 75 years old. 2. Be proven to be primary adenocarcinoma of gastric cancer and staged II by pathological evidence 3. R0 surgery with lymphadenectomy 4. Without any other malignancies 5. ECOG (ECOG score standard) performance status of 0 or 1 and expected to survive more than 6 months 6. No contraindications to chemotherapy, including normal peripheral blood routine, liver, and kidney function and electrocardiogram （WBC≥4.0 x 109 /L, NEU≥1.5 x 109 /L, PLT≥100 x 109 /L and HGB≥90g/L). Exclusion Criteria: 1. Female in pregnancy or lactation, or refuse to receive Contraception measures during chemotherapy. 2. Patients with stage I, III and IV. 3. Unavailable for R0 resection and D2 lymph node dissection. 4. Suffering from other uncontrolled diseases, such as other tumors, acute and Chronic infection. 5. With severe heart disease, including congestive heart failure, uncontrolled arrhythmias, unstable angina, myocardial infarction, severe heart valve disease, and resistant hypertension. 6. Any Known or suspected history of drug allergy test. 7. The researchers believe the patient is not able to complete the entire course of the experiment. 8. Patients (within 4 weeks) are receiving any other anti-cancer drugs therapy, biological therapy, radiation therapy, or Immunosuppressive therapy. 9. Patients conform to any of the following: post-organ transplant, necessary for long-term immunosuppressive or suffering with autoimmune diseases.
References
Publications (0)
Data not yet available
No reference posted for this study.