Capecitabine and Oxaliplatin in Treating Patients With Metastatic Breast Cancer

December 8, 2015 updated by: Kathy Miller, MD, Hoosier Cancer Research Network

A Phase II Trial of Capecitabine and Oxaliplatin (CAPOX) in Patients With Metastatic Breast Cancer: Hoosier Oncology Group BRE03-60

In vitro data suggest synergy between oxaliplatin and 5-FU. The combination of oxaliplatin with 5-fluorouracil produced objective response rates ranging from 27-34% in two studies of patients with prior chemotherapy. Capecitabine was designed as an orally administered, tumor selective fluoropyrimidine, preferentially converted to 5-FU at the tumor site by the higher levels of pyrimidine nucleoside phosphorylase (PyNPase) in tumor tissues compared to normal tissues. The end result is higher concentrations of 5-fluorouracil in tumor relative to surrounding normal tissue. This trial will investigate the activity of this novel capecitabine/oxaliplatin (CAPOX) combination in patients with advanced disease. In addition, an exploratory analysis will correlate response with thymidine synthase and thymidine phosphorylase expression in primary tumor samples.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

OUTLINE: This is a multi-center study.

CAPOX (21 day cycle):

  • Capecitabine 825 mg/m2 orally twice daily Days 1-14.
  • Oxaliplatin 100 mg/m2 intravenously Day 1

Patients may continue combination therapy until progression or toxicity intervenes. Patients who discontinue either agent due to toxicity may, at the investigators discretion, continue therapy with the remaining single agent on study.

ECOG performance status 0 or 1

Hematopoietic:·

  • ANC > 1,200/mm3·
  • Platelets > 100,000/mm3

Hepatic:·

  • Total bilirubin < 1.5 x ULN·
  • AST < 2 x ULN (up to 5 x ULN in patients with known liver involvement)

Renal:·

  • Serum creatinine < 1.5 x ULN and estimated creatinine clearance >50ml/min as calculated with Cockroft-Gault equation

Cardiovascular:·

  • No clinically significant cardiac disease (e.g. congestive heart failure, symptomatic coronary artery disease and cardiac arrhythmias not well controlled with medication) or myocardial infarction within the last 12 months.

Study Type

Interventional

Enrollment (Actual)

25

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

    • Delaware
      • Newark, Delaware, United States, 19713
        • Helen F. Graham Cancer Center
    • Illinois
      • Galesburg, Illinois, United States, 61401
        • Medical & Surgical Specialists, LLC
    • Indiana
      • Elkhart, Indiana, United States, 46515
        • Elkhart Clinic
      • Evansville, Indiana, United States, 47714
        • Oncology Hematology Associates of SW Indiana
      • Indianapolis, Indiana, United States, 46202
        • Indiana University Cancer Center
      • Indianapolis, Indiana, United States, 46202
        • Quality Cancer Center (MCGOP)
      • Indianapolis, Indiana, United States, 46256
        • Community Regional Cancer Center
      • Muncie, Indiana, United States, 47303
        • Medical Consultants, P.C.
      • New Albany, Indiana, United States, 47150
        • Center for Cancer Care, Inc., P.C.
      • South Bend, Indiana, United States, 46601
        • Northern Indiana Cancer Research Consortium
      • Terre Haute, Indiana, United States, 47804
        • AP&S Clinic

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 and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Histologic or cytologic diagnosis of breast cancer with evidence of (1) unresectable, locally recurrent, or (2) metastatic disease.·
  • Patients with HER2 positive (3+ overexpression by IHC or gene amplification by FISH) are eligible only if they have had prior trastuzumab therapy.·
  • At least one measurable lesion as defined by the RECIST.
  • Prior radiation therapy is allowed as long as the irradiated area is not the only source of measurable disease.

Exclusion Criteria:

  • No prior therapy with capecitabine or oxaliplatin in any setting
  • No prior therapy with other platinum compounds·
  • No other forms of cancer therapy including radiation, chemotherapy and hormonal therapy within 21 days prior to beginning protocol therapy.·
  • No prior unanticipated severe reaction to fluoropyrimidine therapy, or known sensitivity to 5-fluorouracil.·
  • No prior fluoropyrimidine therapy for metastatic disease is allowed. Prior adjuvant fluoropyrimidine therapy is allowed if completed > 12 months from study entry.·
  • Maximum of one prior chemotherapy regimen for unresectable, locally recurrent or metastatic disease·
  • No symptomatic brain metastasis. ·
  • No evidence of serious concomitant systemic disorders incompatible with the study ·
  • No peripheral neuropathy ·
  • No major surgery within 28 days prior to beginning protocol therapy.·
  • Negative pregnancy test·
  • No female patients currently breastfeeding·
  • No malabsorption syndrome·
  • No evidence of serious concomitant systemic disorders incompatible with the study·
  • Patients must not be treated with any of the following while on protocol therapy or within 28 days prior to beginning protocol therapy: sorivudine, brivudine, cimetidine, allopurinol.

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: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Single Group Assignment
Capecitabine + Oxaliplatin
Capecitabine 825 mg/m2 po bid, days 1-14
Oxaliplatin 100 mg/m2 IV, day 1

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
- To determine the objective response rate (CR+PR) of capecitabine and oxaliplatin (CAPOX) in patients with metastatic breast cancer.
Time Frame: 36 months
36 months

Secondary Outcome Measures

Outcome Measure
Time Frame
To measure time to progression ·
Time Frame: 36 months
36 months
To determine rate of clinical benefit response (CR + PR + SD > 6 months). ·
Time Frame: 36 months
36 months
To determine toxicity rate of CAPOX in this patient population.·
Time Frame: 36 months
36 months
To explore potential correlations between thymidine synthase (TS), thymidine phosphorylase (TP) and dihydropyrimidine dehydrogenase (DPD) expression in the primary tumor with response.
Time Frame: 36 months
36 months

Collaborators and Investigators

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

Sponsor

Collaborators

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the 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

March 1, 2004

Primary Completion (ACTUAL)

June 1, 2007

Study Completion (ACTUAL)

June 1, 2007

Study Registration Dates

First Submitted

September 9, 2005

First Submitted That Met QC Criteria

September 14, 2005

First Posted (ESTIMATE)

September 22, 2005

Study Record Updates

Last Update Posted (ESTIMATE)

December 9, 2015

Last Update Submitted That Met QC Criteria

December 8, 2015

Last Verified

December 1, 2015

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • HOG BRE03-60

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