Drug Resistance Inhibition in Treating Women With Recurrent or Metastatic Breast Cancer

Breast Cancer Clinical Trial

Official title:

A PILOT PHASE II TRIAL OF PSC 833 MODULATION OF MULTIDRUG RESISTANCE TO PACLITAXEL IN THE TREATMENT OF METASTATIC CARCINOMA OF THE BREAST

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00002826
• Other study ID #: CDR0000065011
• Secondary ID: E-1195
• Status: Completed
• Phase: Phase 2
• Start date: August 14, 1997

Study information

• Verified date: June 2023
• Source: Eastern Cooperative Oncology Group
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

RATIONALE: Some tumors become resistant to chemotherapy drugs. Combining PSC 833 with a chemotherapy drug may reduce resistance to the drug, and allow the tumor cells to be killed.

PURPOSE: Phase II trial to study the effectiveness of PSC 883 and paclitaxel in treating women who have recurrent or metastatic breast cancer.

Description:

OBJECTIVES: I. Evaluate the antitumor activity, as measured by frequency of objective response and time to progression, of the multidrug resistance modulator PSC 833 in combination with paclitaxel in women with recurrent or metastatic breast cancer. II. Describe the toxicity of this regimen.

OUTLINE: All patients receive PSC 833 by mouth every 6 hours for a total of 12 doses. Paclitaxel is infused over 3 hours, after the 5th dose of PSC 833. Treatment is repeated every 3 weeks in stable and responding patients. PSC 833 must not be mixed with grapefruit juice. Growth factors may be used at the discretion of the investigator. Patients are followed every 3 months for the first two years, then every 6 months for years 2-5, and then annually thereafter.

PROJECTED ACCRUAL: It is anticipated that approximately 36 patients will be entered over 24 months if there are at least 6 responses in the first 17 patients.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 36
• Est. primary completion date: November 2003
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years to 120 Years

Eligibility

DISEASE CHARACTERISTICS: Histologically confirmed adenocarcinoma of the breast that is recurrent or metastatic No CNS metastases Bidimensionally measurable disease required Patients with bone sites only are not eligible Hormone receptor status: Not specified

PATIENT CHARACTERISTICS: Age: 18 and over Sex: Women only Menopausal status: Not specified Performance status: ECOG 0-2 Hematopoietic: Platelet count at least 100,000/mm3 Absolute granulocyte count at least 1,500/mm3 Hepatic: Bilirubin no greater than 1.5 mg/dL AST less than 2.5 times upper limit of normal Renal: Creatinine no greater than twice upper limit of normal Other: No allergy to cyclosporine or to drugs formulated with Cremophor (e.g., some anesthetics and muscle relaxants) No active unresolved infection More than 7 days since parenteral antibiotics No second malignancy within 5 years except: In situ cervical cancer Nonmelanomatous skin cancer No pregnant or nursing women Adequate contraception required of fertile women

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: Prior anthracyclines or medical contraindication to anthracycline therapy required No prior paclitaxel or taxotere No more than 1 prior regimen for metastatic or recurrent disease Adjuvant chemotherapy within 6 months of diagnosis of metastatic disease considered therapy for advanced disease At least 3 weeks since chemotherapy Endocrine therapy: At least 3 weeks since hormonal therapy for metastases Radiotherapy: Not specified Surgery: Not specified Other: No concurrent treatment with any of the following agents proven to affect blood levels of cyclosporine: Diltiazem Nicardipine Verapamil Fluconazole Itraconazole Ketoconazole Clarithromycin Erythromycin Methylprednisolone Prednisolone Allopurinol Bromocriptine Danazol Metoclopramide Nafcillin Rifampin Carbamazepine Phenobarbital Phenytoin Octreotide Ticlopidine

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms

Intervention

Drug:
• paclitaxel

• valspodar

Locations

Country	Name	City	State
United States	Albert Einstein Comprehensive Cancer Center	Bronx	New York
United States	Hunterdon Regional Cancer Program	Flemington	New Jersey
United States	Kimball Medical Center	Lakewood	New Jersey
United States	Fox Chase Cancer Center at Virtua-Memorial Hospital Burlington County	Mount Holly	New Jersey
United States	Cancer Institute of New Jersey	New Brunswick	New Jersey
United States	Veterans Affairs Medical Center - Palo Alto	Palo Alto	California
United States	Fox Chase Cancer Center	Philadelphia	Pennsylvania
United States	Stanford University Medical Center	Stanford	California
United States	St. Francis Medical Center	Trenton	New Jersey

Sponsors (2)

Lead Sponsor	Collaborator
Eastern Cooperative Oncology Group	National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

References & Publications (1)

Carlson RW, O'Neill A, Goldstein L, et al.: A phase II trial of PSC-833 modulation of multidrug resistance to paclitaxel in breast cancer: a pilot trial of the Eastern Cooperative Oncology Group. [Abstract] Proceedings of the American Society of Clinical