5-Fluorouracil Combined With CoFactor (5-10 Methylenetetrahydrofolate) in Treating Advanced Breast Cancer Patients

A Multi-Center, Open-Label, Single-Arm Phase II Trial Assessing the Efficacy and Safety of Weekly Bolus Infusions of 5-Fluorouracil Combined With CoFactor (5-10 Methylenetetrahydrofolate) in Advanced Breast Cancer Patients Who Failed Anthracycline and Taxane Chemotherapy Regimens

A multi-center, open-label, single-arm Phase II trial assessing the efficacy and safety of weekly bolus infusions of 5-fluorouracil combined with CoFactor (5-10 methylenetetrahydrofolate) in advanced breast cancer patients who failed anthracycline and taxane chemotherapy regimens.

Study Overview

• Status: Unknown
• Conditions: Breast Cancer
• Intervention / Treatment: Drug: CoFactor (ANX-510)

• Study Type: Interventional
• Enrollment (Anticipated): 31
• Phase: Phase 2

Contacts and Locations

Study Locations

• Argentina
  • Buenos Aires, Argentina
    • Clinical Research Site in
• Mexico
  • Acapulco, Mexico
    • Clinical Investigative Site
• Peru
  • Lima, Peru
    • Clinical Investigative Site
• Russian Federation
  • Kazan, Russian Federation
    • Clinical Research Site in
  • St.Petersburg, Russian Federation
    • Clinical Investigative Site
• Spain
  • Valencia, Spain
    • Clinical Investigative Site

Participation Criteria

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:

• Signed informed consent.
• Women with a histologically/cytologically proven diagnosis of advanced adenocarcinoma of the breast.
• Measurable disease. At least one unidimensionally measurable non-bony lesion with a diameter >=10 mm using spiral CT scans (use of spiral CT must be documented in medical records and used consistently throughout the study) or >= 20 mm using conventional CT or MRI scans outside the irradiated area according to RECIST criteria.
• Patients having failed both prior anthracycline and taxane derivative chemotherapy regimens. Anthrocycline and Taxane failure definitions as defined in the protocol.
• No more than two prior chemotherapy regimens for advanced disease.
• Performance status (ECOG) <= 2 or Karnofsky >= 70
• Age >= 18 years.
• Life expectancy >= 12 weeks.

• Adequate organ function as shown by the following:

  1. WBCs >= 3.0 x 109/L, absolute neutrophil count (ANC)>= 1.5 x 109/L, platelets >= 100 x 109/L, hemoglobin >= 9 g/dL
  2. Bilirubin <= 1.25 x the upper limit of normal (ULN),aspartate aminotransferase(AST or alanine aminotransferase(ALT),= 3 x ULN (or <= 5 x ULN in case of liver metastases)
  3. Serum calcium within normal limits
  4. Serum albumin within the normal range for the study site
  5. Creatinine clearance >= 60 mL/min (Cockroft and Gault)
  6. Left ventricular ejection fraction (LVEF) within normal limits as shown by echocardiography or scintigraphy (multiple-gated acquisition scan).
• Patients of childbearing potential must be using medically acceptable contraception for 4 weeks before start of study treatment and 4 months after study treatment completion. Patients of childbearing potential must have a negative pregnancy test result within 7 days prior to study treatment initiation.
• Patients with parenchymal brain metastases must be either adequately controlled following resection or completed appropriate radiation therapy and be receiving a stable corticosteroid dose prior to study entry. Patients with leptomeningeal involvement should not be included in the study.

Exclusion Criteria:

• Her2/neu positive tumor (2+ or 3+).
• Pregnancy or lactation
• Systemic cytotoxic anti-cancer therapy within <=4 weeks of study entry, or 6 weeks if the systemic therapy contains a nitrosourea or mitomycin C. Hormonal anti-cancer treatment must be ongoing, or must have been discontinued >3 months before study entry.
• Prior 5-FU- and/or capecitabine-based palliative chemotherapy.
• Extensive prior radiotherapy affecting more than 30% of bone marrow reserves, or bone marrow / stem cell transplantation.
• Participation in clinical studies of non-approved experimental agents or procedures within <=4 weeks of study entry.
• History of other malignancy, unless cured and the patient has been disease-free for >=2 years. Patients with a history of cervical carcinoma in situ or cured stage I cervical cancer, or of epidermal or basal cell skin cancer, may be eligible for enrollment after discussion with the sponsor.
• Previous unexpected reaction to fluoropyrimidines, with or without documented deficiency of dihydropyrimidine dehydrogenase, or known hypersensitivity to 5-FU.
• Psychologic, familial, sociologic or geographic conditions which do not permit compliance with the study protocol and/or study.
• Significant cardiac disease, including symptomatic ventricular arrhythmia, congestive heart failure, myocardial infarction within 12 months before study entry.
• Concomitant treatment with any experimental drug or anti-cancer drug, except hormone therapy or bisphosphonates.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Overall Response Rate

Secondary Outcome Measures

Outcome Measure
Overall Survival
Progression Free Survival
Duration of Response

Collaborators and Investigators

• Sponsor: Mast Therapeutics, Inc.

Study record dates

Study Major Dates

• Study Start: February 1, 2006

Study Registration Dates

• First Submitted: February 7, 2007
• First Submitted That Met QC Criteria: February 9, 2007
• First Posted (Estimate): February 13, 2007

Study Record Updates

• Last Update Posted (Estimate): April 22, 2008
• Last Update Submitted That Met QC Criteria: April 18, 2008
• Last Verified: April 1, 2008

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Skin Diseases; Neoplasms; Neoplasms by Site; Breast Diseases; Breast Neoplasms
• Other Study ID Numbers: 510-08