Trial of 3-weekly Versus 5-weekly Schedule of S-1 Plus Cisplatin in Gastric Cancer: SOS
Phase III Trial of 3-weekly vs. 5-weekly Schedule of S-1 Plus Cisplatin Combination Chemotherapy for First Line Treatment of Advanced Gastric Cancer.
Sponsor: Asan Medical Center
A PHASE3 clinical study on Advanced Gastric Cancer, this trial is completed. The trial is conducted by Asan Medical Center and has accumulated 7 data snapshots since 2009. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.
Status Flow
Change History
7 versions recorded-
Sep 2025 — Present [monthly]
Completed PHASE3
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Sep 2024 — Sep 2025 [monthly]
Completed PHASE3
-
Jul 2024 — Sep 2024 [monthly]
Completed PHASE3
-
Jan 2021 — Jul 2024 [monthly]
Completed PHASE3
-
Feb 2020 — Jan 2021 [monthly]
Completed PHASE3
▶ Show 2 earlier versions
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Jun 2018 — Feb 2020 [monthly]
Completed PHASE3
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Jan 2017 — Jun 2018 [monthly]
Completed PHASE3
First recorded
Jan 2009
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- Asan Medical Center
- Chonbuk National University Hospital
- Chonnam National University Hospital
- Gachon University Gil Medical Center
- Hallym University Medical Center
- Inje University
- Korea Cancer Center Hospital
- Kyungpook National University Hospital
- National Cancer Center, Korea
- Samsung Medical Center
- Seoul Veterans Hospital
- Ulsan University Hospital
- Yeungnam University College of Medicine
For direct contact, visit the study record on ClinicalTrials.gov .