Letrozole After Tamoxifen in Treating Women With Breast Cancer

This study has been completed.
Sponsor:
Collaborators:
North Central Cancer Treatment Group
International Breast Cancer Study Group
Eastern Cooperative Oncology Group
Southwest Oncology Group
Cancer and Leukemia Group B
European Organisation for Research and Treatment of Cancer - EORTC
Information provided by (Responsible Party):
NCIC Clinical Trials Group
ClinicalTrials.gov Identifier:
NCT00003140
First received: November 1, 1999
Last updated: September 18, 2014
Last verified: March 2012
No Study Results Posted on ClinicalTrials.gov for this Study
  Study Status: This study has been completed.
  Study Completion Date: October 2003
  Primary Completion Date: October 2003 (Final data collection date for primary outcome measure)
Publications:
Goss PE, Ingle JN, Martino S, et al.: Outcomes of women who were premenopausal at diagnosis of early stage breast cancer in the NCIC CTG MA17 trial. [Abstract] 32nd Annual San Antonio Breast Cancer Symposium, December 9-13, 2009, San Antonio, Texas. A-13, 2009.
Chapman JW, Meng D, Shepherd L, et al.: Competing causes of death in breast cancer extended adjuvant endocrine therapy: NCIC CTG MA.17. [Abstract] American Society of Clinical Oncology 2007 Breast Cancer Symposium, 7-8 September 2007, San Francisco, California A-56, 2007.
Goss P: Breaking the 5-year barrier: results from the MA.17 extended adjuvant trial in women who have completed adjuvant tamoxifen treatment. [Abstract] European Journal of Cancer Supplements 4 (9): 10-5, 2006.
Ingle J, Tu D, Shepherd L, et al.: NCIC CTG MA.17: intent to treat analysis (ITT) of randomized patients after a median follow-up of 54 months. [Abstract] J Clin Oncol 24 (Suppl 18): A-549, 2006.
Moy B, Tu D, Shepherd LE, et al.: NCIC CTG MA.17: tolerability of letrozole among ethnic minority women. [Abstract] J Clin Oncol 24 (Suppl 18): A-6018, 305s, 2006.
Pater JL, Tu D, Ingle JN, et al.: An evaluation of the early termination (ET) of MA.17 extended adjuvant therapy trial. [Abstract] Breast Cancer Res Treat 100 (Suppl 1): A-2081, S107-8, 2006.
Robert NJ, Goss PE, Ingle JN, et al.: Updated analysis of NCIC CTG MA.17 (letrozole vs. placebo to letrozole vs placebo) post unblinding. [Abstract] J Clin Oncol 24 (Suppl 18): A-550, 2006.
Abetz L, Barghout V, Thomas S, et al.: Letrozole did not worsen quality of life relative to placebo in post-menopausal women with early breast cancer: results from the US subjects of the MA-17 study. [Abstract] Breast Cancer Research and Treatment 94 (Suppl 1): A-2047, 2005.
Goss PE, Ingle JN, Palmer MJ, et al.: Updated analysis of NCIC CTG MA.17 (letrozole vs. placebo to letrozole vs placebo) post unblinding. [Abstract] Breast Cancer Research and Treatment 94 (Suppl 1): A-16, 2005.
Goss PE, Ingle JN, Tu D: NCIC CTG MA17: disease free survival according to estrogen receptor and progesterone receptor status of the primary tumor. [Abstract] Breast Cancer Research and Treatment 94 (Suppl 1): A-2042, 2005.
Ingle JN, Goss PE, Tu D: Analysis of duration of letrozole extended adjuvant therapy as measured by hazard ratios of disease recurrence over time for patients on NCIC CTG MA.17. [Abstract] Breast Cancer Research and Treatment 94 (Suppl 1): A-17, 2005.
Luk C, Goss P, Pritchard K, et al.: Determinants of preferences for starting extended adjuvant letrozole (L) in postmenopausal women following five years of tamoxifen. [Abstract] J Clin Oncol 23 (Suppl 16): A-642, 39s, 2005.
Vachon CM, Ingle JN, Scott CG, et al.: Pilot study of changes in mammographic density in women treated with letrozole or placebo on NCIC CTG MA17. [Abstract] Breast Cancer Research and Treatment 94 (Suppl 1): A-6005, 2005.
Goss PE, Ingle JN, Martino S, et al.: Updated analysis of the NCIC CTG MA.17 randomized placebo (P) controlled trial of letrozole (L) after five years of tamoxifen in postmenopausal women with early stage breast cancer. [Abstract] J Clin Oncol 22 (Suppl 14): A-847, 88s, 2004.
Whelan T, Goss P, Ingle J, et al.: Assessment of quality of life (QOL) in MA.17, a randomized placebo-controlled trial of letrozole in postmenopausal women following five years of tamoxifen. [Abstract] J Clin Oncol 22 (Suppl 14): A-517, 7s, 2004.