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

October 4, 2012 updated by: Hallym University Medical Center

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

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.

Study Overview

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.

Study Type

Interventional

Enrollment (Actual)

88

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: OS (oxalipaltin+S-1)
OS (oxaliplatin + 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
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
Other Names:
  • Eloxatin
  • TS-1
Active Comparator: XELOX (oxalipaltin+capecitabine)
XELOX (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
Oxaliplatin 130mg/m2 IV on D1 every 21 days and Capecitabine 2000mg/m2/day PO, divided by two on D1-14 every 21 days
Other Names:
  • Xeloda
  • Eloxatin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
overall response rate
Time Frame: 4 years
4 years

Secondary Outcome Measures

Outcome Measure
Time Frame
Safety, time to progression, and overall survival
Time Frame: 4.6 years
4.6 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2008

Primary Completion (Actual)

April 1, 2012

Study Completion (Actual)

April 1, 2012

Study Registration Dates

First Submitted

May 7, 2008

First Submitted That Met QC Criteria

May 9, 2008

First Posted (Estimate)

May 13, 2008

Study Record Updates

Last Update Posted (Estimate)

October 5, 2012

Last Update Submitted That Met QC Criteria

October 4, 2012

Last Verified

October 1, 2012

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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