ATAC - Arimidex, Tamoxifen Alone or in Combination - Full Text View

Purpose

The aim of this study is to test whether Arimidex alone or in combination with Tamoxifen is beneficial in the treatment of breast cancer.

Condition	Intervention	Phase
Breast Cancer	Drug: Anastozole (Arimidex) Drug: Tamoxifen (Nolvadex) Drug: Anastozole (Arimidex) placebo Drug: Tamoxifen (Nolvadex) placebo	Phase 3


Study Type:	Interventional
Study Design:	Allocation: Randomized Intervention Model: Parallel Assignment Masking: Double Blind (Participant, Investigator) Primary Purpose: Treatment
Official Title:	A Randomised, Double Blind Trial Comparing Arimidex Alone With Nolvadex Alone With Arimidex and Nolvadex in Combination, as Adjuvant Treatment in Post-Menopausal Women With Breast Cancer

Resource links provided by NLM:

Genetics Home Reference related topics: breast cancer

MedlinePlus related topics: Breast Cancer

Drug Information available for: Tamoxifen Tamoxifen citrate Anastrozole

U.S. FDA Resources

Further study details as provided by AstraZeneca:

Primary Outcome Measures:

Time to recurrence of breast cancer [ Time Frame: Earliest of local or distant recurrence, new primary breast cancer, or death ]
Safety and side effects [ Time Frame: Earliest of local or distant recurrence, new primary breast cancer, or death ]

Secondary Outcome Measures:

Time to distant recurrence [ Time Frame: Earliest of local or distant recurrence, new primary breast cancer, or death ]
Survival [ Time Frame: Earliest of local or distant recurrence, new primary breast cancer, or death ]
New breast primaries [ Time Frame: Earliest of local or distant recurrence, new primary breast cancer, or death ]


Enrollment:	9358
Study Start Date:	July 1996
Study Completion Date:	April 2010
Primary Completion Date:	June 2001 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
Active Comparator: 1 Arimidex 1mg + Nolvadex placebo	Drug: Anastozole (Arimidex) 1mg, orally, once daily Other Name: Arimidex Drug: Tamoxifen (Nolvadex) placebo 20mg, orally, once daily
Active Comparator: 2 Arimidex placebo + Nolvadex 20mg	Drug: Tamoxifen (Nolvadex) 20mg, orally, once daily Other Name: Nolvadex Drug: Anastozole (Arimidex) placebo 1mg, orally, once daily
Active Comparator: 3 Arimidex 1mg + Nolvadex 20mg	Drug: Anastozole (Arimidex) 1mg, orally, once daily Other Name: Arimidex Drug: Tamoxifen (Nolvadex) 20mg, orally, once daily Other Name: Nolvadex

Eligibility


Ages Eligible for Study:	45 Years and older (Adult, Senior)
Sexes Eligible for Study:	Female
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

Patients with histologically proven operable invasive breast cancer
Patients who have completed all primary surgery and chemotherapy (if given), and are candidates to receive hormonal adjuvant therapy
Women defined as post-menopausal

Exclusion Criteria:

Patients in whom there is any clinical evidence of metastatic disease
Patients who, for whatever reason (e.g. confusion, infirmity, alcoholism), are unlikely to comply with trial requirements
Patients whose chemotherapy was started more than 8 weeks (ie 56 days) after completion of primary surgery or whose chemotherapy was completed more than 8 weeks (ie 56 days) before starting randomised treatment

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

No Contacts or Locations Provided

More Information


Responsible Party:	AstraZeneca
ClinicalTrials.gov Identifier:	NCT00849030 History of Changes
Other Study ID Numbers:	1033IL/0029 D5392C00029
Study First Received:	February 20, 2009
Last Updated:	June 5, 2012

Additional relevant MeSH terms:


Breast Neoplasms Neoplasms by Site Neoplasms Breast Diseases Skin Diseases Tamoxifen Anastrozole Estrogen Antagonists Hormone Antagonists Hormones, Hormone Substitutes, and Hormone Antagonists	Physiological Effects of Drugs Antineoplastic Agents, Hormonal Antineoplastic Agents Selective Estrogen Receptor Modulators Estrogen Receptor Modulators Bone Density Conservation Agents Aromatase Inhibitors Steroid Synthesis Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action

ClinicalTrials.gov processed this record on June 23, 2017