ATAC - Arimidex, Tamoxifen Alone or in Combination

PHASE3CompletedINTERVENTIONAL

Enrollment

9,358

Participants

Timeline

Start Date

July 31, 1996

Primary Completion Date

June 30, 2001

Study Completion Date

April 30, 2010

Conditions

Breast Cancer

Interventions

DRUG

Anastozole (Arimidex)

1mg, orally, once daily

DRUG

Tamoxifen (Nolvadex)

20mg, orally, once daily

DRUG

Anastozole (Arimidex) placebo

1mg, orally, once daily

DRUG

Tamoxifen (Nolvadex) placebo

20mg, orally, once daily