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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

Status
UNKNOWN
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00434369
Enrollment
31
Registered
2007-02-13
Start date
2006-02-28
Completion date
Unknown
Last updated
2008-04-22

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

Conditions

Breast Cancer

Brief summary

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.

Interventions

Sponsors

Mast Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frame
Overall Response Rate

Secondary

MeasureTime frame
Progression Free Survival
Overall Survival
Duration of Response

Countries

Argentina, Mexico, Peru, Russia, Spain

Outcome results

None listed

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