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ABCSG 8 - Adjuvant Treatment in Patients With Hormone Receptor-Positive Breast Cancer With Good to Moderate Differentiation.
This study has been completed.
Sponsored by: AstraZeneca
Information provided by: AstraZeneca
ClinicalTrials.gov Identifier: NCT00291759
  Purpose

The purpose of this study is to assess the difference in event-free survival between postmenopausal women with hormone receptor-positive early breast cancer who switched from tamoxifen to anastrozole and those who continued to receive tamoxifen.


Condition Intervention Phase
Breast Cancer
Drug: Tamoxifen
Drug: Anastrozole
Phase III

Genetics Home Reference related topics: breast cancer
MedlinePlus related topics: Breast Cancer Cancer
Drug Information available for: Anastrozole Tamoxifen Tamoxifen citrate
U.S. FDA Resources
Study Type: Interventional
Study Design: Treatment, Randomized, Open Label, Active Control, Parallel Assignment, Safety/Efficacy Study
Official Title: Adjuvant Endocrine Therapy in Postmenopausal Patients With HR +ve BC With Good to Moderate Differentiation - ARNO (Arimidex + Nolvadex). Primary Treatment for 2 Years With Tamoxifen Thereafter Randomisation to: Tamoxifen 3 Years or Anastrozole 3 Years.

Further study details as provided by AstraZeneca:

Primary Outcome Measures:
  • To assess the difference in event free survival and overall survival (subject to stand-alone or combined/meta-analysis) between postmenopausal women with HR +ve early BC who switched from tamoxifen to anastrozole and those who continued on tamoxifen.

Secondary Outcome Measures:
  • To assess the difference in event free survival & overall survival (subject to stand-alone or combined/meta-analysis) plus side effects between postmenopausal women with HR+ve early BC who switched from tam to anastrozole and those who continued on tam.

Estimated Enrollment: 3900
Study Start Date: January 1996
  Eligibility

Ages Eligible for Study:   up to 80 Years
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Invasive mammary carcinoma after radical treatment, without prior chemo/hormone/radiation therapy.
  • At least 6 lymph nodes examined.
  • Good or intermediate tumour differentiation.
  • <6 weeks before start of adjuvant therapy.
  • Oestrogen or Progesterone positive

Exclusion Criteria:

  • Premenopausal.
  • Preoperative hormonal/antihormonal/radiation/cytoxic chemo. Second malignant tumour/status post second malignant tumour.
  • In-situ/T4 carcinoma.
  • Age >80 years.
  • World Health Organisation performance index >3.
  • Serious accompanying diseases
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00291759

  Show 52 Study Locations
Sponsors and Collaborators
AstraZeneca
Investigators
Principal Investigator: Raimund Jakesz, MD Austrian Breast and Colorectal Cancer Study Group
Study Director: AstraZeneca Austria Medical Director, MD AstraZeneca
  More Information

Study ID Numbers: 1033AU/0002, ABCSG 8
Study First Received: February 13, 2006
Last Updated: February 8, 2007
ClinicalTrials.gov Identifier: NCT00291759  
Health Authority: Austria: Federal Ministry for Health and Women

Study placed in the following topic categories:
Anastrozole
Skin Diseases
Breast Neoplasms
Tamoxifen
Breast Diseases

Additional relevant MeSH terms:
Estrogen Antagonists
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents, Hormonal
Antineoplastic Agents
Hormone Antagonists
Physiological Effects of Drugs
Hormones, Hormone Substitutes, and Hormone Antagonists
Enzyme Inhibitors
Bone Density Conservation Agents
Selective Estrogen Receptor Modulators
Pharmacologic Actions
Estrogen Receptor Modulators
Neoplasms
Neoplasms by Site
Therapeutic Uses
Aromatase Inhibitors

ClinicalTrials.gov processed this record on January 16, 2009