Doxorubicin and Cyclophosphamide (AC) Followed by Weekly Docetaxel as Neoadjuvant Treatment of Breast Cancer Patients
Condition: Breast Cancer
MeSH terms: Breast Neoplasms
Intervention: Doxorubicin; Cyclophosphamide; Docetaxel
Intervention MeSH terms: Cyclophosphamide; Docetaxel; Doxorubicin
Phase: Phase 2
Study type: Interventional
Primary purpose: Treatment
Intervention model: Single Group Assignment
Masking: None (Open Label)
Enrollment: 63.0
Sex: Female
Minimum age: 18 Years
Maximum age: 70 Years
Healthy volunteers: No
Keywords: Stage II and IIIA breast Cancer.; Neoadjuvant chemotherapy.; Weekly docetaxel.

Summary:

      Treatment consists of 4 AC cycles followed by 2 weekly docetaxel cycles (12 infusions).

      The pathological complete response rate obtained in previous studies is around 12%. The
      expected pathological complete response rate in this study is 25%. With an alpha error of
      0.05 and a beta error of 0.2, and following Simon´s 2 phase test, 19 patients are needed
      initially. With 2 pathological complete responses, patient recruitment will continue until
      approximately 61 patients are recruited. Twelve pathological complete responses are needed to
      confirm the study hypothesis.
    

Eligibility criteria:

        Inclusion Criteria:

          -  Written informed consent.

          -  Patients with breast cancer stages II and IIIA, with histological diagnoses as per
             true-cut or open biopsy.

          -  Negative extension study, including bilateral mammography, thoracic x-ray, computed
             tomography (CT)-scan or abdominal echography and bone scintigraphy.

          -  Analysis of hormone receptor status in primary tumour. It is highly recommended to
             obtain a tumour tissue sample before start of treatment, and after definitive surgery.
             These samples will be analysed centrally by Spanish Breast Cancer Research Group
             (GEICAM).

          -  Age >= 18 and <= 70 years old.

          -  Performance status as per Karnofsky index >= 80.

          -  Minimum life expectancy of 6 months.

          -  Electrocardiogram (EKG) 12 weeks before registration to the study. If abnormalities
             are suspected, cardiac function must be assessed by left ventricular ejection fraction
             (LVEF).

          -  Haematology: neutrophils >= 2.0 x10^9/l; platelets >= 100 x10^9/l; hemoglobin >=10
             g/dl.

          -  Hepatic function: total bilirubin <= 1 x upper normal limit (UNL); Aspartate
             aminotransferase (AST) (SGOT) and and Alanine aminotransferase (ALT) (SGPT) <= 2.5 x
             UNL; alkaline phosphatase <= 5 x UNL.

          -  Renal function: creatinine <= 1.5 x UNL; creatinine clearance >= 60 ml/min.

          -  Patients able to comply with study requirements.

          -  Negative pregnancy test.

          -  Adequate contraceptive method during the study and up to 3 months after definitive
             surgery.

        Exclusion Criteria:

          -  Previous systemic therapy for breast cancer treatment.

          -  Previous treatments with anthracyclines or taxanes for any malignancy.

          -  Previous radiotherapy for breast cancer.

          -  Bilateral invasive breast cancer.

          -  Pregnant or lactating women.

          -  Previous motor or sensorial neurotoxicity grade >=2.

          -  Other serious pathologies: congestive heart failure or angina pectoris; history of
             myocardial infarction in the previous year; uncontrolled hypertension (HT) or high
             risk arrhythmias.

          -  History of neurological or psychiatric impairment, precluding patients from providing
             free informed consent.

          -  Active infection.

          -  Active peptic ulcer; unstable diabetes mellitus.

          -  History of previous or current malignancies other than breast cancer, except for basal
             skin carcinoma, cervical in situ carcinoma, other tumour diagnosed and treated more
             than 10 years before, ductal carcinoma in situ (DCIS) or lobular carcinoma in situ
             (LCIS).

          -  Chronic treatment with corticoids unless the treatment started > 6 months before
             registration to the study, and low doses are administered.

          -  Substitutive hormonal therapy. This treatment must be interrupted before inclusion in
             the study.

          -  Concomitant treatment with other investigational products or administration in the 30
             previous days.

          -  Males.