We're building a better ClinicalTrials.gov. Check it out and tell us what you think!
Try the New Site
We're building a modernized ClinicalTrials.gov! Visit Beta.ClinicalTrials.gov to try the new functionality.
ClinicalTrials.gov Menu

Evaluation of Drug Resistance in Patients With Metastatic Breast Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT00003253
Recruitment Status : Unknown
Verified May 2006 by National Cancer Institute (NCI).
Recruitment status was:  Active, not recruiting
First Posted : November 26, 2003
Last Update Posted : December 19, 2013
Information provided by:
National Cancer Institute (NCI)

Brief Summary:

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Some patients may develop a resistance to chemotherapy drugs.

PURPOSE: Phase II trial to determine the reliability of a test for measuring drug resistance to paclitaxel in patients with metastatic breast cancer.

Condition or disease Intervention/treatment Phase
Breast Cancer Drug: paclitaxel Other: antitumor drug screening assay Phase 2

Detailed Description:

OBJECTIVES: I. Evaluate the proportion of patients with extreme, intermediate, and low drug resistance to paclitaxel using the Extreme Drug Resistance (EDR) Assay in patients with previously treated metastatic breast cancer. II. Assess response to paclitaxel therapy in patients who have undergone a pretreatment EDR assay. III. Assess time to tumor progression during paclitaxel therapy in patients who have undergone a pretreatment EDR assay. IV. Determine prospectively the predictive value of the EDR assay relative to clinical outcome by correlating assay results with clinical tumor response and time to tumor progression during paclitaxel therapy in these patients.

OUTLINE: This is an open label, single arm, blinded study. Patients' tumor tissue samples are collected by excisional biopsy, core biopsy, or malignant fluid aspiration, then tested by the Extreme Drug Resistance (EDR) Assay to determine probability of drug resistance to paclitaxel. After successful completion of the EDR assay (approximately 7 days), patients receive paclitaxel by intravenous infusion over 1-3 hours; treatment is repeated every 3 weeks. Treatment continues until there is documented evidence of tumor progression or unacceptable toxicity. Patients' clinical response to paclitaxel therapy is compared with the response predicted by the EDR assay.

PROJECTED ACCRUAL: 100 patients will be accrued to this study.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 100 participants
Primary Purpose: Diagnostic
Official Title: Assessment of the Predictive Value of the Extreme Drug Resistance (EDR) Assay in Patients Receiving Paclitaxel for Metastatic Breast Cancer
Study Start Date : July 1997

Resource links provided by the National Library of Medicine

Drug Information available for: Paclitaxel

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

DISEASE CHARACTERISTICS: Metastatic breast cancer that is accessible for biopsy or aspiration Bidimensionally measurable disease with at least one diameter greater than 1 cm documented on x-ray or photograph, or a palpable lesion No brain metastases or carcinomatous meningitis Hormone receptor status: Not specified

PATIENT CHARACTERISTICS: Age: 18 and over Sex: Male or female Menopausal status: Not specified Performance status: SWOG 0-2 Life expectancy: Not specified Hematopoietic: Absolute neutrophil count greater than 1,500/mm3 Platelet count greater than 100,000/mm3 Hepatic: Bilirubin no greater than 2.0 mg/dL SGOT no greater than 3 times upper limit of normal (ULN) (no greater than 5 times ULN if metastatic to liver) Renal: Creatinine no greater than 2.0 mg/dL Calcium no greater than 12 mg/dL Cardiovascular: No myocardial infarction within 3 months prior to study No unstable angina or symptomatic congestive heart failure Other: No active or uncontrolled infection Not HIV positive No psychoses Not pregnant or nursing Effective contraception required of fertile women No second malignancy within past 5 years except: Adequately treated basal or squamous cell carcinoma of the skin In situ cancer of the cervix

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: See Disease Characteristics Prior paclitaxel permitted if patient had disease-free interval of greater than 1 year Prior taxotere permitted Endocrine therapy: Not specified Radiotherapy: Not specified Surgery: Not specified

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00003253

Layout table for location information
United States, California
Pacific Coast Hematology/Oncology Medical Group
Fountain Valley, California, United States, 92708
Long Beach Memorial Breast Center
Long Beach, California, United States, 90806
USC/Norris Comprehensive Cancer Center and Hospital
Los Angeles, California, United States, 90033-0804
Jonsson Comprehensive Cancer Center, UCLA
Los Angeles, California, United States, 90095-1781
Chao Family Comprehensive Cancer Center
Orange, California, United States, 92868
United States, District of Columbia
Howard University
Washington, District of Columbia, United States, 20059
United States, Louisiana
Louisiana State University Health Sciences Center - Shreveport
Shreveport, Louisiana, United States, 71130-3932
United States, South Carolina
Palmetto Hematology/Oncology Associates
Spartanburg, South Carolina, United States, 29303
United States, Texas
University of Texas - MD Anderson Cancer Center
Houston, Texas, United States, 77030-4009
Sponsors and Collaborators
Layout table for investigator information
Study Chair: Rita S. Mehta, MD Oncotech
Publications of Results:
Fruehauf JP, Mehta RS, Parker RJ: Association of invitro resistance to paclitaxel with clinical outcome in metastatic breast cancer patients with taxol: a multi-institutional prospective trial. [Abstract] Proc Am Assoc Cancer Res 41: A-2096, 330, 2000.

Layout table for additonal information
ClinicalTrials.gov Identifier: NCT00003253    
Other Study ID Numbers: CDR0000066135
First Posted: November 26, 2003    Key Record Dates
Last Update Posted: December 19, 2013
Last Verified: May 2006
Keywords provided by National Cancer Institute (NCI):
stage IV breast cancer
recurrent breast cancer
male breast cancer
Additional relevant MeSH terms:
Layout table for MeSH terms
Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases
Antineoplastic Agents
Antineoplastic Agents, Phytogenic
Tubulin Modulators
Antimitotic Agents
Mitosis Modulators
Molecular Mechanisms of Pharmacological Action