Effect of Aromatase Inhibitor Therapy on Blood Vessel Function in Postmenopausal Women With Breast Cancer

NCT ID: NCT00719966

Last Updated: 2024-01-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

109 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-09-18

Study Completion Date

2020-01-24

Brief Summary

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RATIONALE: Aromatase inhibitor therapy is used in treating postmenopausal women who have hormone-dependent breast cancer. It is not yet known what effect aromatase inhibitor therapy has on blood vessel function.

PURPOSE: This clinical trial is studying the effect of aromatase inhibitor therapy on blood vessel function in postmenopausal women with breast cancer.

Detailed Description

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OBJECTIVES:

* Determine the effect of adjuvant aromatase inhibitor therapy on endothelial function in postmenopausal women with breast cancer.

OUTLINE: This is a multicenter study. Patients are assigned to 1 of 2 treatment groups according to breast cancer hormone-receptor status (positive vs negative).

* Group 1 (hormone receptor-positive): Patients receive aromatase inhibition therapy for up to 6 months in the absence of unacceptable toxicity.
* Group 2 (hormone receptor-negative): Patients do not receive adjuvant treatment.

Endothelial function is measured in both groups at baseline and at follow up by the room temperature peripheral arterial tonometry (RT-PAT) index using the EndoPAT method.

Conditions

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Breast Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Group 1 (hormone receptor-positive)

Patients receive aromatase inhibition therapy for up to 6 months in the absence of unacceptable toxicity.

anastrozole

Intervention Type DRUG

Patients receive aromatase inhibition therapy.

exemestane

Intervention Type DRUG

Patients receive aromatase inhibition therapy.

letrozole

Intervention Type DRUG

Patients receive aromatase inhibition therapy.

assessment of therapy complications

Intervention Type PROCEDURE

Endothelial function is measured

Group 2 (hormone receptor-negative)

Patients do not receive adjuvant treatment.

assessment of therapy complications

Intervention Type PROCEDURE

Endothelial function is measured

Interventions

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anastrozole

Patients receive aromatase inhibition therapy.

Intervention Type DRUG

exemestane

Patients receive aromatase inhibition therapy.

Intervention Type DRUG

letrozole

Patients receive aromatase inhibition therapy.

Intervention Type DRUG

assessment of therapy complications

Endothelial function is measured

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Hormone receptor positive and are not receiving an AI

PATIENT CHARACTERISTICS:

* Postmenopausal
* No known or symptomatic coronary artery disease
* No significant co-morbidities, including any of the following conditions:

* Active renal or hepatic disease
* Known uncontrolled and/or untreated peripheral arterial disease
* Uncontrolled and/or untreated hypertension
* Uncontrolled and/or untreated diabetes
* Uncontrolled and/or untreated hyperlipidemia

PRIOR CONCURRENT THERAPY:

* See Disease Characteristics
* More than 7 days since prior hormone replacement therapy or hormone-based contraception
* More than 12 months since prior and no concurrent tamoxifen or aromatase inhibitor therapy for this disease
* More than 12 months since prior and no concurrent chemotherapy for this disease
* No prior bilateral mastectomy
Minimum Eligible Age

40 Years

Maximum Eligible Age

80 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Nicole P. Sandhu, M.D., Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic

Rochester, Minnesota, United States

Site Status

Countries

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United States

Other Identifiers

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06-004006

Identifier Type: OTHER

Identifier Source: secondary_id

MC0834

Identifier Type: -

Identifier Source: org_study_id

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