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Clinical Trials (PDQ®)

Phase III Study of the Effect of Menstrual Cycle Timing With Breast Surgery on Prognosis in Premenopausal Women With Stage I, II, or III Breast Cancer. Note: The information about this trial has not been updated by the sponsor/principal investigator/lead organization. cannot verify the accuracy of the information.

Alternate Title
Basic Trial Information
Entry Criteria
Expected Enrollment
Trial Contact Information
Registry Information

Alternate Title

Timing of Menstrual Cycle and Surgery in Treating Premenopausal Women With Stage I, Stage II, or Stage III Breast Cancer. Note: The information about this trial has not been updated by the sponsor/principal investigator/lead organization. cannot verify the accuracy of the information.

Basic Trial Information

PhaseTypeStatusAgeSponsorProtocol IDs
Phase IIITreatmentCompletedPremenopausalNCIUCLA-9810046
UCSD-985772, NCI-G00-1724, NCT00005079


  1. Determine if the timing of breast surgery during the menstrual cycle impacts disease recurrence, progression, or death among different racial groups in premenopausal women with stage I, II, or III breast cancer.
  2. Determine if definitive breast cancer surgeries (e.g., lumpectomy or mastectomy) performed during the follicular phase result in poorer prognosis (recurrence, disease progression, or death) compared with surgeries performed during the midcycle or luteal phases in this patient population.

Entry Criteria

Disease Characteristics:

  • Histologically confirmed stage I, II, or III primary breast cancer undergoing breast surgery
    • Invasive disease (e.g., lobular or ductal)
    • No bilateral disease

  • No distant metastases

  • Premenopausal
    • Regular menses (no amenorrhea of more than 90 days) without hormone replacement
    • Documented last menstrual period

  • Hormone receptor status:
    • Not specified

Prior/Concurrent Therapy:

Biologic therapy:

  • Not specified


  • No preoperative chemotherapy

Endocrine therapy:

  • No concurrent hormonal replacement therapy
  • No concurrent interruptive oral contraceptive use of less than 3 months


  • Not specified


  • See Disease Characteristics
  • No prior hysterectomy and/or bilateral oophorectomy

Patient Characteristics:


  • Premenopausal


  • Female

Menopausal status:

  • See Disease Characteristics

Performance status:

  • Not specified

Life expectancy:

  • Not specified


  • Not specified


  • Not specified


  • Not specified


  • No other prior malignancies
  • Not pregnant or nursing

Expected Enrollment

Approximately 400 patients will be accrued for this study within 2.5 years.


This is a multicenter study.

Patients undergo either fine needle aspiration concurrently with definitive breast surgery (mastectomy or lumpectomy) or needle-directed excisional biopsy followed by definitive breast surgery.

Patients undergo serum collection for hormonal analysis preoperatively, 24 hours post operatively, at days 7 and 14, and at 3 months and urine collection for hormonal analysis beginning 24 hours prior to surgery and continuing daily until the onset of the next menses.

Patients complete a 30-minute telephone interview regarding medical, family, occupational, and reproductive history and lifestyle habits (e.g., diet, exercise, or environmental exposures). Beginning 24 hours prior to surgery and continuing until the onset of the next menses, patients complete a menstrual cycle journal indicating the start and length of menses.

Patients undergoing mastectomy are followed every 3 months for 1 year, every 6 months for 1 year, and then annually thereafter. Patients undergoing adjuvant therapy are followed every 3 months for 3 years and then every 6 months thereafter or every 4 months for 2 years and then every 6 months thereafter.

Trial Contact Information

Trial Lead Organizations

Jonsson Comprehensive Cancer Center at UCLA

Helena Chang, MD, PhD, Protocol chair
Ph: 310-794-5640; 888-798-0719

Registry Information
Official Title Timing of Breast Cancer Surgery, Menstrual Cycle and Prognosis
Trial Start Date 1999-01-21
Registered in NCT00005079
Date Submitted to PDQ 2000-02-23
Information Last Verified 2003-04-23
NCI Grant/Contract Number CA16042

Note: The purpose of most clinical trials listed in this database is to test new cancer treatments, or new methods of diagnosing, screening, or preventing cancer. Because all potentially harmful side effects are not known before a trial is conducted, dose and schedule modifications may be required for participants if they develop side effects from the treatment or test. The therapy or test described in this clinical trial is intended for use by clinical oncologists in carefully structured settings, and may not prove to be more effective than standard treatment. A responsible investigator associated with this clinical trial should be consulted before using this protocol.

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