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Assessment of the Efficacy of Preoperative Exemestane Therapy for Endocrine-sensitive Postmenopausal Breast Cancer (SBCCSG-10)

Assessment of the Efficacy of Preoperative Exemestane Therapy for Endocrine-sensitive Postmenopausal Breast Cancer (SBCCSG-10) - Assessment of the Efficacy of Preoperative Exemestane Therapy for Endocrine-sensitive Postmenopausal Breast Cancer (SBCCSG-10)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000000802
Enrollment
23
Registered
2007-08-18
Start date
2007-08-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postmenopausal breast cancer

Interventions

Exemestane (25 mg Tablet) is internally administered once a day everyday.

Sponsors

Saitama Breast Cancer Clinical Study Group (SBCCSG)
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1.Patients diagnosed histologically as having had invasive ductal carcinoma. 2.Patients 60 years or more, at least one of the following features; A.One year have passed since the final menstruation B.Past history of surgical bilateral ovariectomy (including radiotherapy) C.Past history of hysterectomy and the serum levels of FSH, LH, and E2 are postmenopausal levels 3.StageIIA-IIIB 4.ER-positive and HER2-negative defined with immunohistochemical staining 5.PS(WHO):0-1 6.Patients who satisfy the reference levels of blood cell count and biochemical examination at the institutions 7.Benefit is expected to be obtained from the initial systemic treatment 8.A written consent is obtained

Exclusion criteria

Exclusion criteria: 1.Patients under chemotherapy and hormone therapy (for tumors) 2.Patients under treatment with the drugs (including HRT) that may influence on the conditions of sex hormone 3.Patients with a past history of breast cancer or with double cancer

Design outcomes

Primary

MeasureTime frame
Time To Progression

Secondary

MeasureTime frame
1.Maximum efficacy period 2.Rate of tumor reduction 3.Relationship between pathological response rate and capacity of cell proliferation, activity of aromatase and functional analysis of estrogen receptor of breast cancer cells 4.Time To Treatment Failure 5.Adverse events 6.Changes in bone mineral density

Countries

Japan

Contacts

Public ContactToshihiro Kai

Saitama Breast Cancer Clinical Study Group (SBCCSG) Executive office(c/o: Shin-toshin Ladies' Clinic)

toshikai@nyc.odn.ne.jp048-600-1722

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026