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S-1 plus Oxaliplatin combination chemotherapy in a stop-and-go fashion for metastatic colorectal cancer

S-1 plus Oxaliplatin combination chemotherapy in a stop-and-go fashion for metastatic colorectal cancer - OPTISOX Study

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000004086
Enrollment
40
Registered
2010-08-30
Start date
2010-07-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic colorectal cancer

Interventions

Sponsors

Yodogawa Christian Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Pathologically confirmed colorectal cancer (adenocarcinoma) 2) Unrecetable recurrent or metastatic colorectal cancer 3) Age 20<= 80> 4) PS(ECOG) 0 or 1 5) Presence of tumor region assessed by image test 30 days before the registry (measureable region is not necessary) 6) No prior chemotherapy and radiotherapy 7) Capability of oral intake 8) Sufficient organ functions WBC>=3000/mm3 and <=12000/mm3 Neutrophils>=1500/mm3 Platelets>=100000/mm3 Hemoglobin>=9.0g/dL Platelets>=100000/mm3 Total bilirubin<2.0mg/dL AST<=100IU/L ALT<=100IU/L Creatinine Clearance>=60mL/min 9) Expected life over 90 days 10)Written informed consent

Exclusion criteria

Exclusion criteria: 1) Medical history of severe anaphylaxis or allergia to any drug 2) Pregnant or lactating woman at any time during study. Men of the fertility hope. 3) Serious infection 4) Severe complications 5) Severe cardiac disease 6) Neuropathy 7) Severe diarrhea 8) Massive pleural or abdominal effusion 9) High grade stenosis at the primary tumor 10) Presence of peritoneal dissemination or peritoneal tuberosity assessed by image test 11) Brain metastasis 12) Double cancer 13) Prior adjuvant chemotherapy with oxaliplatin containing regimen 14) Systemic administration of corticosteroids 15) Patients who are judged inappropriate for the entry into the study by the investigator

Design outcomes

Primary

MeasureTime frame
Frequency and grade of adverse events

Secondary

MeasureTime frame
Duration of disease control, Tumor response rate, Overall survival, Progression-free survival, Disease control rate, Time to treatment failure, R0 resection rate, Compliance

Countries

Japan

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026