Comparing Anastrozole-Placebo to the Combination Anastrozole-ZD1839 in Postmenopausal Patients With Estrogen Receptor and/or Progesterone Receptor Metastatic Breast Cancer

NCT ID: NCT00077025

Last Updated: 2014-07-16

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

Clinical Phase

PHASE2

Total Enrollment

174 participants

Study Classification

INTERVENTIONAL

Study Start Date

2004-01-31

Study Completion Date

2013-05-31

Brief Summary

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This study is being carried out to see if treatment with ZD1839 (Gefitinib) combined with Arimidex (Anastrozole) has improved efficacy over Arimidex alone in preventing progression of metastatic breast cancer.

Detailed Description

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This is a phase II, multicenter, double-blind, randomized, placebo-controlled trial. Patients will be randomized in a double-blind manner in a 1:1 ratio to receive either 250 mg/day ZD1839 or matched placebo in combination with 1 mg/day anastrozole. The dose of ZD1839 has been selected based on clinical studies in other tumor types suggesting identical efficacy together with a better toxicity profile in patients treated at 250 mg compared to 500 mg/day. The 1 mg dose of anastrozole is the standard approved dose.

Conditions

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Breast Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Anastrozole-placebo

Anastrozole (ZD1033, Arimidex)-Placebo

Group Type ACTIVE_COMPARATOR

Anastrozole

Intervention Type DRUG

1 mg Anastrozole (ZD1033, Arimidex) + PLACEBO 1 TABLET/DAY PO

Anastrozole-ZD1839

Anastrozole (ZD1033, Arimidex)-ZD1839 (gefitinib, IRESSA)

Group Type ACTIVE_COMPARATOR

Gefitinib

Intervention Type DRUG

ZD1839 (gefitinib, IRESSA) 250 mg/DAY PO + 1 mg Anastrozole (ZD1033, Arimidex)

Interventions

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Gefitinib

ZD1839 (gefitinib, IRESSA) 250 mg/DAY PO + 1 mg Anastrozole (ZD1033, Arimidex)

Intervention Type DRUG

Anastrozole

1 mg Anastrozole (ZD1033, Arimidex) + PLACEBO 1 TABLET/DAY PO

Intervention Type DRUG

Other Intervention Names

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IRESSA Arimidex

Eligibility Criteria

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Inclusion Criteria

* Female postmenopausal patients aged 18 years or older with newly diagnosed metastatic breast cancer.
* Patients with recurrent disease during or after adjuvant tamoxifen or patients who are hormone therapy naïve are eligible for this trial.
* A paraffin embedded tumor tissue block or slides from either the metastatic or primary tumor site is required.

Exclusion Criteria

* Patients cannot be on hormone replacement therapy while on study.
* Prior chemotherapy received for metastatic disease is not allowed.
* Previous treatment with tyrosine kinase inhibitors or aromatase inhibitors is not allowed.
* Patients who have evidence of an active interstitial lung disease are not eligible.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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AstraZeneca

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Iressa Medical Science Director, MD

Role: STUDY_DIRECTOR

AstraZeneca

Locations

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Research Site

La Jolla, California, United States

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San Diego, California, United States

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Orlando, Florida, United States

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Lafayette, Louisiana, United States

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Rockville, Maryland, United States

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Columbia, Missouri, United States

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Omaha, Nebraska, United States

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Las Vegas, Nevada, United States

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Voorhees Township, New Jersey, United States

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Albuquerque, New Mexico, United States

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Lake Success, New York, United States

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Cincinnati, Ohio, United States

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Allentown, Pennsylvania, United States

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Sioux Falls, South Dakota, United States

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Houston, Texas, United States

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Temple, Texas, United States

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Cali, , Colombia

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Aguascalientes, , Mexico

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Guadalajara, , Mexico

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Morelia, , Mexico

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Barcelona, , Venezuela

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Barquisimeto, , Venezuela

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Caracas, , Venezuela

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Maracaibo, , Venezuela

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Puerto Ordaz and San Felix, , Venezuela

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San Cristóbal, , Venezuela

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Valencia, , Venezuela

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Countries

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United States Colombia Mexico Venezuela

Related Links

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Other Identifiers

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1839US/0713

Identifier Type: -

Identifier Source: org_study_id

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