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.
1 other identifier
interventional
625
1 country
1
Brief Summary
The urgent need for a new effective therapy with better safety profile for the metastatic gastric cancer patients and promising results observed so far in the studies with S-1 plus cisplatin combination in advanced gastric cancer (AGC) strongly warrants the comparison of a 3-weekly schedule to a 5-weekly schedule of S-1 plus cisplatin as a standard regimen in the first-line treatment for AGC patients. The objectives of this study are to compare a 3-weekly schedule to a 5-weekly schedule of S-1 plus Cisplatin combination in terms of efficacy, quality of life and safety in patients with previously untreated advanced or recurrent unresectable gastric cancer. Primary endpoint is progression-free survival. This is an open label, randomized, multi-center, non-inferiority/superiority (of 3-weekly regimen over 3-weekly regimen) hybrid study.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Jan 2009
Typical duration for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2009
CompletedFirst Submitted
Initial submission to the registry
June 5, 2009
CompletedFirst Posted
Study publicly available on registry
June 8, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2013
CompletedJanuary 7, 2020
January 1, 2020
4.3 years
June 5, 2009
January 6, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
progression-free survival
accrual of patients for 36 months, followup of the last patient for 12 months
Secondary Outcomes (1)
overall survival
accrual of patients for 36 months, followup of the last patient for 12 months
Study Arms (2)
3 weekly regimen of S-1 and cisplatin
ACTIVE COMPARATOR5 weekly regimen of S-1 and cisplatin
ACTIVE COMPARATORInterventions
S-1: 80 mg/m2/day po on Days 1-14 cisplatin: 60 mg/m2 iv on Day 1
Eligibility Criteria
You may qualify if:
- Histologically documented metastatic or recurrent gastric adenocarcinoma including adenocarcinoma of the gastro-esophageal junction
- Age 18 to 74 years old
- Performance status (ECOG scale) 0-2
- No significant problems for oral intake and drug administration
- At least one measurable or evaluable disease defined by RECIST
- Adequate bone marrow function (ANC ≥ 1,500/uL, Platelet ≥ 100,000/ uL, Hb ≥ 9.0 g/dl)
- Adequate renal function: serum creatinine ≤ UNL (if serum creatinine \> UNL, creatinine clearance should be ≥ 60 mL/min)
- Adequate hepatic function (Total bilirubin \< 2 x UNL and AST/ALT levels \< 3 x UNL without liver metastasis,total bilirubin \< 3x ULN and AST/ALT levels \< 5 x UNL with liver metastasis)
- Prior systemic therapy (for instance, cytotoxic chemotherapy or active/passive immunotherapy) is allowed if at least 6 months has elapsed between completion of adjuvant/neoadjuvant therapy and enrolment into the study) and cisplatin was not used before
- Patients should sign a written informed consent before study entry
You may not qualify if:
- Tumor type other than adenocarcinoma
- Previously exposed to any fluropymidine within 6 months before the study
- Previously exposed to Platinum therapy regardless of its period and/or duration
- Microscopic residual disease only after noncurative gastrectomy with R1 resection (resection margin positive)
- Second primary malignancy (except in situ carcinoma of the cervix or adequately treated basal cell carcinoma of the skin or prior malignancy treated more than 5 years ago without recurrence)
- Prior radiotherapy was administered to target lesions selected for this study, or radiotherapy to the non-target lesions has been completed within 4 weeks before randomization
- Presence of CNS metastasis
- Major surgery within 4 weeks before initiation of study treatment or lack of complete recovery from the effects of major surgery (patient received curative operation or RFA for metastatic disease)
- Serious illness or medical conditions:
- Congestive heart failure (NYHA class III or IV)
- Unstable angina or myocardial infarction within the past 12 months
- Significant arrhythmias requiring medication and conduction abnormality such as over 2nd degree AV block
- Uncontrolled hypertension
- Hepatic cirrhosis (≥ Child class B)
- Interstitial pneumonia
- +12 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Asan Medical Centerlead
- Samsung Medical Centercollaborator
- Kyungpook National University Hospitalcollaborator
- Seoul Veterans Hospitalcollaborator
- National Cancer Center, Koreacollaborator
- Ulsan University Hospitalcollaborator
- Inje Universitycollaborator
- Chonbuk National University Hospitalcollaborator
- Gachon University Gil Medical Centercollaborator
- Korea Cancer Center Hospitalcollaborator
- Yeungnam University College of Medicinecollaborator
- Hallym University Medical Centercollaborator
- Chonnam National University Hospitalcollaborator
Study Sites (1)
Department of Oncology, Asan Medical Center
Seoul, 138-736, South Korea
Related Publications (1)
Ryu MH, Baba E, Lee KH, Park YI, Boku N, Hyodo I, Nam BH, Esaki T, Yoo C, Ryoo BY, Song EK, Cho SH, Kang WK, Yang SH, Zang DY, Shin DB, Park SR, Shinozaki K, Takano T, Kang YK; SOS study investigators. Comparison of two different S-1 plus cisplatin dosing schedules as first-line chemotherapy for metastatic and/or recurrent gastric cancer: a multicenter, randomized phase III trial (SOS). Ann Oncol. 2015 Oct;26(10):2097-101. doi: 10.1093/annonc/mdv316. Epub 2015 Jul 27.
PMID: 26216386DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Yoon-Koo Kang, MD, PhD
Asan Medical Center, Seoul, Korea
- PRINCIPAL INVESTIGATOR
Won Ki Kang, M.D.PhD.
Samsung Medical Center, Seoul, Korea
- PRINCIPAL INVESTIGATOR
Jong Kwang Kim, M.D.PhD
Kyungpook National University Hospital, Korea
- PRINCIPAL INVESTIGATOR
Young Iee Park, M.D.PhD
National Cancer Center, Korea
- PRINCIPAL INVESTIGATOR
Jin Ho Baek, M.D.PhD.
Ulsan University Hospital, Korea
- PRINCIPAL INVESTIGATOR
Chang Hak Sohn, M.D.PhD.
Inje University Pusan Paik Hospital, Korea
- PRINCIPAL INVESTIGATOR
Eun Ki Song, M.D.PhD.
Chonbuk National University Hospital, Korea
- PRINCIPAL INVESTIGATOR
Dong Bok Shin, M.D.PhD.
Gachon University Gil Medical Center
- PRINCIPAL INVESTIGATOR
Sung Hyun Yang, M.D.PhD.
Korea Cancer Center Hospital
- PRINCIPAL INVESTIGATOR
Kyung Hee Lee, M.D.PhD.
Yeungnam University College of Medicine
- PRINCIPAL INVESTIGATOR
Dae Young Zang, M.D.PhD
Hallym University Medical Center
- PRINCIPAL INVESTIGATOR
Ik-Joo Chung, M.D.PhD
Chonnam National University Hospital
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
June 5, 2009
First Posted
June 8, 2009
Study Start
January 1, 2009
Primary Completion
May 1, 2013
Study Completion
May 1, 2013
Last Updated
January 7, 2020
Record last verified: 2020-01