NCT00295620

Brief Summary

The study assesses the effect of further 2 years vs further 5 years of adjuvant treatment with anastrozole after initial 5 years of adjuvant endocrine therapy.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
3,484

participants targeted

Target at P75+ for phase_3 breast-cancer

Timeline
Completed

Started Mar 2004

Longer than P75 for phase_3 breast-cancer

Geographic Reach
1 country

60 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

March 1, 2004

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

February 23, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 24, 2006

Completed
11.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2017

Completed
2.3 years until next milestone

Results Posted

Study results publicly available

October 2, 2019

Completed
Last Updated

October 2, 2019

Status Verified

October 1, 2019

Enrollment Period

13.3 years

First QC Date

February 23, 2006

Results QC Date

December 14, 2018

Last Update Submit

October 1, 2019

Conditions

Keywords

Hormone receptor positive breast cancer

Outcome Measures

Primary Outcomes (1)

  • Disease-free Survival After Prolonged Endocrine Treatment

    To determine whether 5 years of additional Anastrozole was more effective than 2 years of additional Anastrozole after 5 years of adjuvant endocrine therapy in terms of disease-free survival.

    DFS was defined as the time from two years after randomization to the earliest occurrence of loco-regional recurrence, distant recurrence, contralateral new breast cancer, second cancer or death from any cause, assessed up to a maximum of 8.5 years

Secondary Outcomes (4)

  • Overall Survival After Prolonged Endocrine Treatment

    Overall survival was defined as the time from two years after randomization to death due to any cause, assessed up to a maximum of 8.5 years

  • Time to First Clinical Fracture

    Time to first clinical fracture was defined as time to first clinical fracture, in the period from 2 years until 5 years after randomization for each patient.

  • Time to Secondary Carcinoma

    Risk of secondary carcinoma was defined as the time from two years after randomization to first occurrence of new secondary cancer without new breast cancer (local or contralateral), assessed up to a maximum of 8.5 years

  • Time to Contralateral Breast Cancer

    Risk of contralateral breast cancer was defined as the time from two years after randomization to first occurrence of new contralateral breast cancer, assessed up to a maximum of 8.5 years

Study Arms (2)

Arm A: Anastrozol

EXPERIMENTAL

1 mg per day for 2 years

Drug: Anastrozole

Arm B: Anastrozol

EXPERIMENTAL

1 mg per day for 5 years

Drug: Anastrozole

Interventions

1mg tablet daily

Also known as: Arimidex
Arm A: AnastrozolArm B: Anastrozol

Eligibility Criteria

Age18 Years - 80 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Postmenopausal patients with histologically confirmed, local radically treated invasive or minimal-invasiv Mammacarcinom with or without previous chemotherapie and/or radiotherapie.
  • No distant metastasis at randomization
  • No relapse at randomization
  • TNM- classification at time of diagnosis: T1-3, N0 and N+, M0
  • Estrogen- and or progesterone positive before the beginningof primary endocrine therapy
  • Endocrine therapy for 5 years (maximum deviation ±12 months)
  • Therapy break (from the preliminary therapie) maximum 12 months.
  • Informed Consent before the randomisation

You may not qualify if:

  • Premenopausal patients or patients with non definable menopausal statusat time of randomisation
  • Apparent secondary malignant tumor or status after secondary malignant tumor (Exceptions: simultaniously appearing bilateral breast carcinoma, estrogen- and or progesteronereceptor positive on both sides at the time of diagnosis; in situ carcinomaof the cervix and basal cell carcinoma of the skin)
  • General contraindication respectively hypersensitivity to Anastrozol.
  • In-situ carcinoma of any size with or without Mb. Paget of the Mamilla respectively T4 tumor at the time of first diagnosis.
  • Receptor unknown or negative at time of diagnosis respectively at beginning of primary endocrine therapy
  • Known liver- and/or kidneyinsufficiency
  • Performance Index \>2 according to WHO
  • Regular intake of hormon supplement as well as Hormone Replacement Therapy (HRT) more than 6 months since primary surgery of the mamma carcinoma
  • Serious accessory disease, that prevents the adjuvant therapy according to protocol and/or the regular follow-up care.
  • Lacking compliance of the patient
  • Legal incompetence and/or other circumstances, that prevent the patient from understanding the nature, meaning and consequences of the clinical trial
  • Existing psychiatrical diseaseaccording to ICD (especially alcohol addiction) et the time of admission into the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (60)

Research Site

Amstetten, 3300, Austria

Location

Research Site

Bad Ischl, 4820, Austria

Location

Research Site

Baden, 2500, Austria

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Research Site

Bregenz, 6900, Austria

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Research Site

Dornbirn, 6853, Austria

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Research Site

Eisenstadt, 7000, Austria

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Research Site

Feldbach, 8330, Austria

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Research Site

Feldkirch, 6807, Austria

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Research Site

Freistadt, 4240, Austria

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Research Site

Fürstenfeld, 8280, Austria

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Research Site

Gmunden, 4810, Austria

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Research Site

Graz, 8036, Austria

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Research Site

Güssing, 7540, Austria

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Research Site

Hainburg an der Donau, 2410, Austria

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Research Site

Hall in Tirol, 6060, Austria

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Research Site

Innsbruck, 6020, Austria

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Research Site

Kirchdorf, 4560, Austria

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Research Site

Klagenfurt, 8020, Austria

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Research Site

Klagenfurt, 9020, Austria

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Klagenfurt, 9026, Austria

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Research Site

Krems, 3500, Austria

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Research Site

Kufstein, 6330, Austria

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Leoben, 8700, Austria

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Research Site

Lienz, 9900, Austria

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Linz, 4010, Austria

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Linz, 4021, Austria

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Mistelbach, 2130, Austria

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Research Site

Mödling, 2340, Austria

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Neunkirchen, 2620, Austria

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Research Site

Oberpullendorf, 7350, Austria

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Research Site

Oberwart, 7400, Austria

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Research Site

Ried im Innkreis, 4910, Austria

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Research Site

Rottenmann, 8786, Austria

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Research Site

Salzburg, 5020, Austria

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Research Site

Sankt Pölten, 3100, Austria

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Research Site

Sankt Veit an der Glan, 9300, Austria

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Research Site

Scheibbs, 3270, Austria

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Research Site

Schladming, 8970, Austria

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Research Site

Schwarzach, 5620, Austria

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Steyr, 4400, Austria

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Vienna, 1021, Austria

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Vienna, 1050, Austria

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Vienna, 1070, Austria

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Vienna, 1090, Austria

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Vienna, 1130, Austria

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Vienna, 1140, Austria

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Vienna, 1160, Austria

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Vienna, 1180, Austria

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Research Site

Vienna, 1210, Austria

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Research Site

Vienna, 1220, Austria

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Vienna, A-1090, Austria

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Research Site

Villach, 9500, Austria

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Research Site

Villach, 9504, Austria

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Research Site

Vöcklabruck, 4840, Austria

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Research Site

Waidhofen an der Thaya, 3830, Austria

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Research Site

Weiz, 8160, Austria

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Research Site

Wels, 4600, Austria

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Research Site

Wiener Neustadt, 2700, Austria

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Research Site

Wolfsberg, 9400, Austria

Location

Research Site

Zams, 6511, Austria

Location

Related Publications (1)

  • Gnant M, Fitzal F, Rinnerthaler G, Steger GG, Greil-Ressler S, Balic M, Heck D, Jakesz R, Thaler J, Egle D, Manfreda D, Bjelic-Radisic V, Wieder U, Singer CF, Melbinger-Zeinitzer E, Haslbauer F, Sevelda P, Trapl H, Wette V, Wimmer K, Gampenrieder SP, Bartsch R, Kacerovsky-Strobl S, Suppan C, Brunner C, Deutschmann C, Soelkner L, Fesl C, Greil R; Austrian Breast and Colorectal Cancer Study Group. Duration of Adjuvant Aromatase-Inhibitor Therapy in Postmenopausal Breast Cancer. N Engl J Med. 2021 Jul 29;385(5):395-405. doi: 10.1056/NEJMoa2104162.

Related Links

MeSH Terms

Conditions

Breast Neoplasms

Interventions

Anastrozole

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

NitrilesOrganic ChemicalsTriazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Results Point of Contact

Title
Trial Office Director
Organization
ABCSG

Study Officials

  • AstraZeneca Austria Medical Director, MD

    AstraZeneca

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 23, 2006

First Posted

February 24, 2006

Study Start

March 1, 2004

Primary Completion

June 30, 2017

Study Completion

June 30, 2017

Last Updated

October 2, 2019

Results First Posted

October 2, 2019

Record last verified: 2019-10

Locations