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Oxaliplatin and S-1 (OS) Versus Oxaliplatin and Capecitabine (XELOX) for Advanced Colorectal Cancer

A Randomized Phase II Study of Oxaliplatin and S-1 (OS) Versus Oxaliplatin and Capecitabine (XELOX) in Patients With Advanced or Recurrent Colorectal Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00677144
Enrollment
88
Registered
2008-05-13
Start date
2008-04-30
Completion date
2012-04-30
Last updated
2012-10-05

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

Conditions

Colorectal Neoplasm

Keywords

Colorectal Neoplasm, S-1, Capecitabine, Oxaliplatin

Brief summary

The aim of this study is to compare the activity and safety of Oxaliplatin and S-1 (OS) and Oxaliplatin and Capecitabine (XELOX) in patients with advance or recurrent colorectal cancer.

Detailed description

Oxaliplatin and oral fluoropyrimidines (capecitabine or S-1) are active agents for colorectal cancer. Recent a phase II trial of combination chemotherapy of oxaliplatin with S-1 (OS) and several phase II trial of combination chemotherapy of oxaliplatin with capecitabine (XELOX) demonstrated good activity and mild toxicity in advanced colorectal cancer. Oxaliplatin and S-1 or capecitabine have distinct mechanisms of action and no overlap of key toxicities. Furthermore, oxaliplatin and fluorouracil were shown to be highly synergistic, not only in preclinical models but also in subsequent clinical trials.

Interventions

DRUGOS (oxalipaltin+S-1)

Oxaliplatin 130mg/m2 IV on D1 every 21 days and S-1 80mg/m2/day PO \[BSA \<1.25 40mg bid (total 80mg/day); BSA ≥1.25 - \<1.5 50mg bid (total 100mg/day); BSA ≥1.5 60mg bid (total 120mg/day)\], divided by two on D1-14 every 21 days

DRUGXELOX (oxalipaltin+capecitabine)

Oxaliplatin 130mg/m2 IV on D1 every 21 days and Capecitabine 2000mg/m2/day PO, divided by two on D1-14 every 21 days

Sponsors

Sanofi
CollaboratorINDUSTRY
Hallym University Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed colorectal adenocarcinoma, initially diagnosed or recurred * Unresectable, locally advanced or metastatic * At least one uni-dimensional measurable lesion by RECIST criteria * Age 18 to 75 years old * Estimated life expectancy ≥3 months * ECOG performance status ≤2 * Adequate bone marrow function (WBCs ≥ 4,000/µL or absolute neutrophil count ≥ 1,500/µL, platelets ≥ 100,000/µL) * Adequate kidney function (creatinine \< 1.5 mg/dL) * Adequate liver function (bilirubin \< 2.0 mg/dL, transaminase levels \<2.5 times the upper normal limit) * Written informed consent

Exclusion criteria

* Other tumor type than adenocarcinoma * Previous history of chemotherapy (exception : neoadjuvant or adjuvant chemotherapy without oxaliplatin) * Presence of CNS metastasis, psychosis, or seizure * Obvious bowel obstruction * Evidence of serious gastrointestinal bleeding * Past or concurrent history of neoplasm other than colorectal adenocarcinoma, except for curatively treated non-melanoma skin cancer or in situ carcinoma of the cervix uteri * Pregnant or lactating women, women of childbearing potential not employing adequate contraception * Other serious illness or medical conditions

Design outcomes

Primary

MeasureTime frame
overall response rate4 years

Secondary

MeasureTime frame
Safety, time to progression, and overall survival4.6 years

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026