Skip to content

Phase II study of exemestane with doxorubicin plus paclitaxel (AP) followed by weekly paclitaxel (wP) as primary systemic chemotherapy for hormone-sensitive and HER2-negative postmenopausal breast cancer (SBCCSG-13 EAPAC)

Phase II study of exemestane with doxorubicin plus paclitaxel (AP) followed by weekly paclitaxel (wP) as primary systemic chemotherapy for hormone-sensitive and HER2-negative postmenopausal breast cancer (SBCCSG-13 EAPAC) - Phase II study of exemestane with doxorubicin plus paclitaxel (AP) followed by weekly paclitaxel (wP) as primary systemic chemotherapy for hormone-sensitive and HER2-negative postmenopausal breast cancer (SBCCSG-13 EAPAC)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000001298
Enrollment
50
Registered
2008-08-05
Start date
2008-05-20
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 orally administered once a day every day. Doxorubicin plus paclitaxel (AP) followed by weekly paclitaxel (wP).

Sponsors

Saitama Breast Cancer Clinical Study Group (SBCCSG)
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Patients histologically diagnosed with unilateral primary breast cancer. (Inflammatory breast cancer will be excluded.) 2. Patients whose tumor is 2 cm or more in diameter or who are axillary lymph node metastasis positive. 3. Patients whose primary lesion is immunohistochemically estrogen receptor (ER)-positive (10% or more staining) and 4. does not over-express HER2 (Herceptest score 0 or 1+, or in the case of 2+, FISH test signal ratio less than 2.0) 5. Patients who have not received endocrine therapy or chemotherapy for breast cancer 6. Patients who are menopausal and 20 to 65 years of age 7. Patients whose general condition is (ECOG Performance Status [PS]) 0 or 1 8. Patients from whom informed consent has been obtained in writing 9. Patients who have not undergone surgery Patients whose major organ function has been maintained as indicated by the following: 1) WBC count 3000/mm3 or neutrophil count 1500/mm3 2) Hemoglobin 9.0 g/dL 3) Platelet count 100,000 mm3 4) AST and ALT No more than 2.5 times the upper limit of normal values at the institution 5) Total bilirubin 1.5 g/dL 6) ECG Normal (patients with no heart disease or serious arrhythmias)

Exclusion criteria

Exclusion criteria: 1. Synchronous bilateral breast cancer 2. Patients with a serious complication 3. Patients who have a heart disease, such as ischemic heart disease, arrhythmias, etc., that require treatment (left ventricular hypertrophy associated with hypertension or mild left ventricle loading, mild right bundle branch block, etc., eligible for registration), and patients who have a history of myocardial infarction that occurred within the past 6 months 4. Patients with diabetes that is difficult to control, as a complication 5. Patients suspected of having an infection 6. Patients with a past history of serious hypersensitivity or patients with a history of hypersensitivity to the drugs used in this study or preparations containing polyoxyethylene castor oil (Cremophor EL) (cyclosporine injection, etc.) 7. Patients who are pregnant or breast feeding 8.Patients who for any other reason are judged to be unsuitable by the physician in charge

Design outcomes

Primary

MeasureTime frame
Pathological response rate

Secondary

MeasureTime frame
Clinical response rate, recurrence-free survival time, total survival time, rate of occurrence of adverse events, breast-conservation rate, treatment completion rate, biomarkers

Countries

Japan

Contacts

Public ContactToshihiro Kai

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

toshikai@sbccsg.org048-600-1722

Outcome results

None listed

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