A Study of the Effects of Inhibiting Platelet Function on Circulating Cancer Cells in Breast Cancer Patients

NCT ID: NCT00263211

Last Updated: 2017-03-15

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

48 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-01-31

Study Completion Date

2009-09-30

Brief Summary

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The purpose of this study is to determine the effects of Plavix and aspirin in women with metastatic breast cancer.

Detailed Description

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Conditions

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Breast Neoplasms

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Plavix and Aspirin

Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.

Group Type EXPERIMENTAL

Plavix

Intervention Type DRUG

Aspirin

Intervention Type DRUG

Observation only

Observation by treating physician

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Plavix

Intervention Type DRUG

Aspirin

Intervention Type DRUG

Other Intervention Names

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Clopidogrel Bisulfate acetylsalicylic acid

Eligibility Criteria

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Inclusion Criteria

* Women with metastatic breast cancer who are completing planned course of chemotherapy with planned treatment break
* On stable hormone therapy for at least 2 months are also eligible for the study
* Estimated survival of at least 3 months
* No platelet inhibitor therapy within 1 month of study entry
* Platelets ≥ 100,000
* Coagulation screening tests within normal range (INR between 0.81 and 1.20)
* Normal kidney and liver function as defined by:

* Aspartate aminotransferase(AST)/serum glutamic oxaloacetic transaminase (SGOT))/alanine aminotransferase(ALT) ≤ 2 x Institutional Normal
* Creatinine ≤ 2 x Institutional Normal
* Able to provide signed, informed consent.

Exclusion Criteria

* Patients going on to surgery
* Patients with a serious bleeding disorder that make them inappropriate candidates for NSAID therapy
* Patients with history of significant bleeding related to peptic ulcer disease
* Patients on standing doses of NSAIDS or platelet function inhibitors
* Patients on standing doses of anti-coagulants
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Barnes-Jewish Hospital

OTHER

Sponsor Role collaborator

Washington University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Katherine N Weilbaecher, M.D.

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Locations

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Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Countries

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United States

Related Links

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http://www.siteman.wustl.edu

Alvin J. Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine

Other Identifiers

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05-0427 / 201107340

Identifier Type: -

Identifier Source: org_study_id

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