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Phase I/II Study of S-1 plus Cyclophosphamide for Advanced Breast Cancer

Phase I/II Study of S-1 plus Cyclophosphamide for Advanced Breast Cancer - S-1 plus CPA for advanced breast cancer

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs031180296
Enrollment
100
Registered
2019-03-15
Start date
2007-12-01
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

Unresectable or/and recurrent breast cancer

Interventions

Drug: TS-1, Cyclophospamide TS-1: 80 mg/m2/day po on day 1-14 Cyclophospamide 100 mg/day po on day 15-28

Sponsors

Fujii Takaaki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Cases registered in this study must satisfy all of the following conditions. 1)Have histological confirmation of breast cancer with recurrent and/or metastatic lesion. 2)A phase 1 study:There is no need for measurable lesion. A phase 2 study:Patients who have measurable lesion. 3)Age 20-75 4)The patient must have no carry-over of efficacy from any previous treatment (Surgery: 2 weeks, radiation therapy: 2 weeks, endocrine therapy and trastuzumab: 4 weeks) 5)Performance Status (ECOG Scale) 0-1 6)Patients able to take orally. 7)Body surface area >1.25m2 8)Adequate baseline organ and marrow function as defined below; Leukocytes:>=3,500/mm3 Absolute neutrophil count:>=2,000/mm3 Platelets:>=100,000/mm3 Hemoglobin:>=9.0 g/dl AST(GOT):=60ml/min (Cockcroft-Gault):female Ccr =body weightx(140-age)/(72xcreatine)x0.85 9) Patients should sign a written informed consent

Exclusion criteria

Exclusion criteria: 1) Patients with serious complication as followings, (Uncontrolled diabetes mellitus, active infection, severe heart disease (unstable angina, myocardial infarction( within 6 months)), mental disease) 2) Patients with findings of interstitial pneumonia or pulmonary fibrosis by chest X-P. 3) Patients with symptomatic brain metastasis 4) Patients with a history of severe drug hypersensitivity. 5) Active second primary malignancy (except adequately treated carcinoma in situ or malignancy treated more than 5 years ago without recurrence) 6) Women in pregnancy, at risk of pregnancy. 7) During administration of fluoropyrimidines, flucytosine, and pentostatin. 8) Patients who had recurrent disease within one year after administration of fluoropyrimidine or cyclophosphamide based chemotherapy. 9) Patients with previous administration of tegafur / gimeracil/ oteracil. 10) Patients judged inappropriate by physicians

Design outcomes

Primary

MeasureTime frame
Response rate

Secondary

MeasureTime frame
Overall survival, Progression-free survival, safety

Contacts

Public ContactTakaaki Fujii

Gunma University

ftakaaki@gunma-u.ac.jp+81-27-220-8224

Outcome results

None listed

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