NCT00287534

Brief Summary

The purpose of this study is to determine the efficacy and tolerability of 3 years treatment with anastrozole after a prior 2 years' treatment with tamoxifen versus 5 years treatment with tamoxifen in postmenopausal women with early breast cancer

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,059

participants targeted

Target at P75+ for phase_2 breast-cancer

Timeline
Completed

Started Nov 1996

Longer than P75 for phase_2 breast-cancer

Geographic Reach
1 country

43 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 1996

Completed
7.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2004

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

February 6, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 7, 2006

Completed
Last Updated

June 9, 2009

Status Verified

June 1, 2009

First QC Date

February 6, 2006

Last Update Submit

June 7, 2009

Conditions

Keywords

Early Breast Cancer

Outcome Measures

Primary Outcomes (1)

  • To assess the difference in disease-free survival between post-menopausal women with hormone receptor-positive early breast cancer who switched from tamoxifen to anastrozole and those who continued to receive tamoxifen

Secondary Outcomes (3)

  • To assess difference in overall survival between the two treatment arms

  • To assess difference in disease recurrence between the two treatment arms

  • To assess difference in safety and tolerability between the two treatment arms

Study Arms (2)

1

EXPERIMENTAL

Anastrozole

Drug: Anastrozole

2

ACTIVE COMPARATOR

Tamoxifen

Drug: Tamoxifen

Interventions

oral

Also known as: Arimidex, ZD1033
1

oral

Also known as: Nolvadex
2

Eligibility Criteria

AgeUp to 75 Years
Sexfemale
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Signed informed consent,
  • Post-menopausal women ≤75 years,
  • histologically confirmed invasive breast carcinoma (no distant metastases),
  • positive hormone receptor status,
  • continuous 2-year adjuvant tamoxifen therapy 20 mg/30 mg with 4 weeks after primary surgery

You may not qualify if:

  • menopause status maintained by medication,
  • pre-operative chemotherapy or hormone therapy or radiation therapy,
  • relapse or second carcinoma or previous cancerous disease,
  • breast carcinoma in situ,
  • simultaneous carcinoma of the opposite side or secondary breast,
  • or more tumour-infiltrated lymph nodes.
  • serious accompanying diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (43)

Research Site

Albstadt, Germany

Location

Research Site

Berlin, Germany

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Cloppenburg, Germany

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Eggenfelden, Germany

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Frankfurt, Germany

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Freiburg im Breisgau, Germany

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Göttingen, Germany

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Halle, Germany

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Hamburg, Germany

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Hanau, Germany

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Hanover, Germany

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Heidelberg, Germany

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Hoyerswerda, Germany

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Idar-Oberstein, Germany

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Jena, Germany

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Karlsruhe, Germany

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Kassel, Germany

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Kiel, Germany

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Leonberg, Germany

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Lingen, Germany

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Lübeck, Germany

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Magdeburg, Germany

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Mainz, Germany

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Mannheim, Germany

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München, Germany

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Münster, Germany

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Neustadt, Germany

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Osnabrück, Germany

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Paderborn, Germany

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Pforzheim, Germany

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Recklinghausen, Germany

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Rosenheim, Germany

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Rostock, Germany

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Rüsselsheim am Main, Germany

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Schleswig, Germany

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Siegen, Germany

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Titisee-Neustadt, Germany

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Tübingen, Germany

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Ulm, Germany

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Waiblingen, Germany

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Westerstede, Germany

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Worms, Germany

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Research Site

Würzburg, Germany

Location

MeSH Terms

Conditions

Breast Neoplasms

Interventions

AnastrozoleTamoxifen

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

NitrilesOrganic ChemicalsTriazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsStilbenesBenzylidene CompoundsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbons

Study Officials

  • Manfred Kaufmann, MD

    German Adjuvant Breast Cancer Group

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

February 6, 2006

First Posted

February 7, 2006

Study Start

November 1, 1996

Study Completion

September 1, 2004

Last Updated

June 9, 2009

Record last verified: 2009-06

Locations