Immunogenicity Assessment of Peg-filgrastim vs. Neulasta® as Adjunct to Chemotherapy in Patients With Breast Cancer

Inclusion Criteria

• Patients must be able and willing to give written informed consent prior to any study related procedures
• Ambulatory, female patients with an age ≥ 18 years
• Patients with histologically or cytologically proven diagnosis of breast cancer who are eligible for neoadjuvant or adjuvant chemotherapy.
• Patients who are planned and eligible to receive/ receiving myelosuppressive chemotherapy regimen that contains at least one chemotherapeutic agent from docetaxel/ paclitaxel / doxorubicin/ cyclophosphamide/ epirubicin
• Patients who have not received any hematopoietic growth factors (e.g. G-CSF, PegGCSF, erythropoietin) or cytokines (e.g. interleukins, interferons) anytime in the past
• Patients with baseline WBC ≥ LLN/ 3.5 x 109/L, ANC of ≥ 1.5 x 109/L, platelet count ≥ 100 x 109/L and hemoglobin ≥ 8.5 g/dL
• Patients with ECOG Performance status of ≤ 2
• Patient who have estimated life expectancy of more than six months
• No evidences of hemorrhage

Exclusion Criteria

1 Male patients

• Hypersensitivity to any of the study drugs or its components like E.coli proteins or similar product
• Patients weighing 2.5 X Upper limits of normal (ULN), serum SGOT > 2.5 X ULN, SGPT > 2.5 X ULN, Total bilirubin > 1.5 X ULN and Creatinine > 1.5 X ULN of the reference range at the screening assessment]
• Patients with seropositivity for HIV or HBV or HCV
• Known cases of Sickle Cell Anemia
• Patients with radiographic evidence of active pulmonary infections and/or recent history of pneumonia within 1 month of screening
• Patients with clinically evident splenomegaly confirmed subsequently by ultrasonography
• Patients with any other clinically significant disease(s) which, in the opinion of the investigator, could compromise the patient's involvement in the study or overall interpretation of the data. [for e.g. uncontrolled hematologic, renal, hepatic, endocrine, neurologic, psychiatric, metabolic, pulmonary, cardiovascular disease/impaired functioning or history of any autoimmune disease]
• Patients who have participated in another therapeutic clinical study within the past 30 days prior to screening, or are likely to simultaneously participate in another therapeutic clinical study
• Patients who are doubtful to comply with study procedures for mental, psychological or social reasons.
• Women of child-bearing potential who are not willing to follow a reliable & effective contraceptive measure during the course of the study & at least 3 months after the last dose of study drug.
• Pregnant and Breast feeding women.