Title

Adjuvant Oophorectomy and Tamoxifen in Premenopausal Women With Hormone Receptor-Positive Breast Cancer
Phase III Randomized Study of Immediate Versus Luteal Phase Adjuvant Oophorectomy and Tamoxifen in Premenopausal Women With Hormone Receptor-positive Breast Cancer
  • Phase

    Phase 3
  • Study Type

    Interventional
  • Intervention/Treatment

    tamoxifen ...
  • Study Participants

    740
This trial tests surgical oophorectomy (removal of ovaries) plus Tamoxifen, done at different times in the menstrual cycle, as adjuvant therapy for invasive breast cancer in 510 premenopausal women with Hormone Receptor-positive Breast Cancer. This study is recruiting at hospitals in Philippines, Vietnam, and Morocco.
Study Started
Jan 31
2004
Primary Completion
Dec 31
2011
Study Completion
May 31
2013
Results Posted
Apr 29
2015
Estimate
Last Update
Apr 29
2015
Estimate

Drug Tamoxifen

20 mg po daily x 5 years

  • Other names: Nolvadex®

Procedure Surgery: Oophorectomy

Group A-Surgical oophorectomy and mastectomy in estimated 5 days in mid-luteal phase of menstrual cycle (b, c) Group B-Surgical oophorectomy and mastectomy (1-6 days from randomization)(b, c) Group C-Surgical oophorectomy and mastectomy(1-6 days from registration)(c)

  • Other names: ovary removal surgery

Immediate surgery Active Comparator

Patient assigned to immediate surgical oophorectomy/mastectomy and Tamoxifen

Scheduled surgery Experimental

Patient scheduled for mid-luteal phase surgical oophorectomy/mastectomy plus Tamoxifen

Immediate Surgery - nonrandomized Other

Patient in mid-luteal phase at time of enrollment. Assigned to immediate surgical oophorectomy/mastectomy plus Tamoxifen without randomization

Criteria

Inclusion Criteria:

Open for accrual in Asia only
Female age 18-50,
premenopausal with regular cycles (>25-35 in length)
fine-needle aspiration diagnosis
Stage II-IIIA hormone receptor positive invasive breast cancer
No prior radiation or chemotherapy
Must be surgical candidate for bilateral oophorectomy

Summary

A - Scheduled Surgery

B - Immediate Surgery

C- Immediate Surgery - Nonrandomized

All Events

Event Type Organ System Event Term A - Scheduled Surgery B - Immediate Surgery C- Immediate Surgery - Nonrandomized

Disease-free Survival

5-year disease-free survival

A - Scheduled Surgery

64.0
percentage of participants

B - Immediate Surgery

71.0
percentage of participants

C- Immediate Surgery - Nonrandomized

70.0
percentage of participants

Total

729
Participants

Age, Continuous

42.2
years (Mean)
Standard Deviation: 4.5

Pathologic tumor size

4.5
cm (Mean)
Standard Deviation: 2.8

Estrogen receptor status

HER2/Neu status

Number of positive axillary nodes

Progesterone level on day of surgery (ng/ml)

Progesterone receptor status

Sex: Female, Male

Overall Study

A - Scheduled Surgery

B - Immediate Surgery

C- Immediate Surgery - Nonrandomized

Drop/Withdrawal Reasons

A - Scheduled Surgery

B - Immediate Surgery

C- Immediate Surgery - Nonrandomized