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AzTrials

Breast CancerPhase 2NCT00002937

Paclitaxel With or Without PSC 833 in Treating Patients With Metastatic Breast Cancer

A Phase 2 study testing paclitaxel and valspodar in people with Breast Cancer, run by City of Hope Medical Center at 4 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. PURPOSE: Randomized phase II trial to compare the effectiveness of paclitaxel with or without PSC 833 in treating patients with metastatic… Read more about this study

Who is it for?
Any age
Conditions the study is for
Breast Cancer
What is being tested?
paclitaxel and valspodar
How many people
70 participants
Where
4 sitesin 2 countries
Study dates
Jun 1996to Nov 2005
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

DISEASE CHARACTERISTICS: Metastatic breast cancer within 2 years of an adjuvant anthracycline based chemotherapy for advanced disease, or failure of one prior anthracycline based chemotherapeutic regimen for advanced breast cancer Exception: When anthracyclines are contraindicated, metastatic disease within 2 years of any adjuvant cytotoxic regimen, or failure of one prior cytotoxic chemotherapeutic regimen for advanced breast cancer also qualifies Evaluable or measurable disease in at least one nonirradiated area No CNS metastases

PATIENT CHARACTERISTICS: Age: Not specified Performance status: SWOG 0-2 Life expectancy: Not specified Hematopoietic: Platelet count at least 100,000/mm3 Hemoglobin at least 8.0 g/dL Absolute neutrophil count at least 1500/mm3 Hepatic: Total serum bilirubin no greater than 1.5 mg/dL No history of chronic active hepatitis or cirrhosis SGOT and/or SGPT no greater than 2 times the upper limit of normal Renal: Serum creatinine no greater than 2.0 mg/dL Other: Not HIV positive Not pregnant or nursing Effective contraceptive required of fertile patients No uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome or bowel obstruction No history of a second malignancy with the exception of non-melanoma skin cancer or carcinoma in situ of the cervix No known hypersensitivity to ingredients of the study medication or cyclosporine No neurologic problems requiring treatment No treatment with drugs within 48 hours that are known to interact with cyclosporine

PRIOR CONCURRENT THERAPY: At least 4 weeks since any investigational therapy Biologic therapy: No concurrent antibiotics, e.g. clarithromycin, erythromycin, nafcillin, rifampin, itraconazole, ketoconazole, or fluconazole (no greater than 200 mg/day allowed) Chemotherapy: No prior paclitaxel At least 6 weeks since nitrosoureas At least 4 weeks since other myelosuppressive chemotherapy Endocrine therapy: At least 2 weeks since hormone therapy No concurrent danazol Radiotherapy: At least 3 weeks since radiation therapy Surgery: Must be recovered from previous surgery Other: No concurrent calcium channel blockers, e.g. diltiazem, nicardipine, and verapamil No concurrent anticonvulsants, e.g. carbamazepine, phenobarbital, and phenytoin No concurrent bromocriptine

Trial locations and contacts

4 sites in 2 countries.

4 sites in 2 countries

United States3 sites
  • Beckman Research Institute, City of Hope

    Duarte, California, 91010

  • USC/Norris Comprehensive Cancer Center

    Los Angeles, California, 90033-0800

  • University of California Davis Cancer Center

    Sacramento, California, 95817

Other trials in United States

Canada1 site
  • Toronto Sunnybrook Regional Cancer Centre

    Toronto, Ontario, M4N 3M5

Other trials in Canada

About this study

Official title: A Phase II Randomized Study of Paclitaxel Versus Paclitaxel + PSC833 for Advanced Breast Cancer (Recurring Less Than 6 Months Since Adjuvant or as Second Line for Advanced Disease

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells.

PURPOSE: Randomized phase II trial to compare the effectiveness of paclitaxel with or without PSC 833 in treating patients with metastatic breast cancer.

Read the detailed description

OBJECTIVES: I. Evaluate the response rate and time to treatment failure of paclitaxel with and without the P-glycoprotein (Pgp) antagonist PSC 833 in advanced breast cancer. II. For each treatment arm, relate paclitaxel AUC (area under curve), and/or time above .05 um/L, to myelosuppression and/or response. III. To obtain preliminary estimates of MDR in this group of patients by measuring MDR1-Pgp immunostaining in pretreatment biopsies in 20 patients and biopsies taken at the time of progression.

OUTLINE: This is a randomized study. Patients are stratified according to three criteria: 1) treatment within 2 years of adjuvant chemotherapy vs. progression on chemotherapy for advanced disease 2) measurable vs. evaluable disease 3) institution. Patients receive paclitaxel alone or paclitaxel plus PSC 833. In the first arm, paclitaxel alone is administered by continuous infusion over 3 hours once every 3 weeks. In the second arm, PSC 833 is administered PO four times a day for 3 days; paclitaxel is administered by continuous infusion over 3 hours on day 2. Courses repeat every 3 weeks.

PROJECTED ACCRUAL: Approximately 70 patients will be accrued per year in this study.

Conditions
Breast Cancer
Being tested
paclitaxel, valspodar
Keywords
recurrent breast cancer
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Sep 2004 (estimated)
  2. Study startJun 1996
  3. Primary completionNov 2005
  4. Study completionNov 2005

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Enrolment
70 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00002937
Sponsor's protocol ID
CDR0000065380
Other IDs
U01CA063265, CHNMC-96002, NCI-H97-1137
Status last verified
Jan 2010
First submitted
1 Nov 1999
Last updated
6 Jan 2010
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing paclitaxel and valspodar in people with Breast Cancer, run by City of Hope Medical Center at 4 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Jan 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Jan 2010.

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