comparing efficacy and safety of stivant (aryogen bevacizumab) versus avastin in metastatic colorectal cancer

Conditions: Metastatic Colorectal Cancer

Summary: this is a phase iii, randomized, two arms, double-blind (patient and assessor blinded), parallel active non inferiority controlled clinical trial with a 2:1 allocation. this trial was conducted to evaluate the efficacy and safety of bevacizumab (produced by aryogen pharmed) plus folfiri-3 compared with bevacizumab (avastin®) plus folfiri-3 in patients with metastatic colorectal cancer (mcrc). patients who met the following criteria could be recruited to receive the mentioned intervention randomly. inclusion criteria: male or female aged 18-75 years, mcrc verified histologically, having one or more bi-dimensionally measurable lesions as defined by response evaluation criteria in solid tumors (recist) criteria, was not felt to be amenable to curative resection, with an (ecog) performance status of ≤ 1, life expectancy of longer than 3 months, adequate organ and marrow function, may have received adjuvant therapy for primary colorectal cancer provided that at least 6 months have elapsed from the time the adjuvant therapy was concluded and recurrent disease was documented, patients with history of hypertension must be well-controlled (blood pressure less than/equal to 150/100), on a stable regimen of anti-hypertensive therapy.

this is a phase iii, randomized, two arms, double-blind (patient and assessor blinded), parallel active non inferiority controlled clinical trial with a 2:1 allocation. this trial was conducted to evaluate the efficacy and safety of bevacizumab (produced by aryogen) plus folfiri-3 compared with bevacizumab (avastin®) plus folfiri-3 in patients with metastatic colorectal cancer (mcrc). patients who met the following criteria could be recruited to receive the mentioned intervention randomly. inclusion criteria: male or female aged 18-75 years, mcrc verified histologically, having one or more bi-dimensionally measurable lesions as defined by response evaluation criteria in solid tumors (recist) criteria, was not felt to be amenable to curative resection, with an (ecog) performance status of ≤ 1, life expectancy of longer than 3 months, adequate organ and marrow function, may have received adjuvant therapy for primary colorectal cancer provided that at least 6 months have elapsed from the time the adjuvant therapy was concluded and recurrent disease was documented, patients with history of hypertension must be well-controlled (blood pressure less than/equal to 150/100), on a stable regimen of anti-hypertensive therapy. exclusion criteria: prior targeted therapy for mcrc, radiotherapy or surgery for mcrc less than 4 weeks before random assignment, undergone major surgical procedures or open biopsy within 28 days before the initiation of study treatment, experienced significant traumatic injury, within 28 days before study entry, currently using or had recently used therapeutic anticoagulants, thrombolytic therapy, chronic, daily treatment with aspirin (higher than 325 mg/daily), proteinuria exceeding 500mg/24 h, history or presence of central nervous system metastases, female patients who are pregnant or lactating, patients with a history of allergic reactions attributed to compounds of similar chemical or biologic composition to bevacizumab, irinotecan, 5-fu, or leucovorin, serious non-healing wound, ulcer, or active bone fracture, myocardial infarction within 6 months before of study enrollment, history of stroke within 6 months before of study enrollment, unstable symptomatic arrhythmia requiring medication, clinically significant peripheral vascular disease, uncontrolled diabetes; serious active or uncontrolled infection, inability to comply with study and/or follow-up procedures. the primary endpoint is progression-free survival and overall survival, objective response rate, time of treatment failures, adverse events and immunogenicity will be assessed as secondary outcomes.

Eligibility criteria:
inclusion criteria: * are male or female aged 18-75 years at the time of signing the informed consent form. * have been diagnosed as mcrc verified histologically * having one or more bi-dimensionally measurable lesions as defined by response evaluation criteria in solid tumors (recist) criteria, * was not felt to be amenable to curative resection, * with an eastern cooperative oncology group (ecog) performance status of ≤ 1 * life expectancy of longer than 3 months ( clinical assessment) * adequate organ and marrow function as defined below: * absolute neutrophil count (anc) greater than/equal to 1,500/mm3; * platelets greater than/equal to 100,000/ mm3; * hemoglobin greater than/equal to 9 gm/dl (may be transfused to maintain or exceed this level); * total bilirubin less than/equal to 1.5 within institutional upper limit of normal (iuln); * aspartate aminotransferase (ast or sgot)/alanine aminotransferase (alt or sgpt) less than/equal to 2.5 times iuln, or less than/equal to 5 times iuln if known liver metastases; * may have received adjuvant therapy for primary colorectal cancer provided that at least 6 months have elapsed from the time the adjuvant therapy was concluded and recurrent disease was documented * patients with history of hypertension must be well-controlled (blood pressure less than/equal to 150/100), on a stable regimen of anti-hypertensive therapy. exclusion criteria: * prior targeted therapy for mcrc * radiotherapy or surgery for mcrc less than 4 weeks before random assignment. * undergone major surgical procedures or open biopsy within 28 days before the initiation of study treatment * experienced significant traumatic injury, within 28 days before study entry * currently using or had recently used therapeutic anticoagulants, thrombolytic therapy, chronic, daily treatment with aspirin (higher than 325 mg/daily). (patients may have prophylactic use of low molecular weight heparin, however therapeutic use of heparin or low molecular weight heparin is not acceptable) * proteinuria exceeding 500mg/24 h * history or presence of central nervous system metastases * female patients who are pregnant or lactating * patients with a history of allergic reactions attributed to compounds of similar chemical or biologic composition to bevacizumab, irinotecan, 5-fu, or leucovorin * serious non-healing wound, ulcer, or active bone fracture * myocardial infarction within 6 months before of study enrollment; * history of stroke within 6 months before of study enrollment; * clinically significant peripheral vascular disease; * uncontrolled diabetes; serious active or uncontrolled infection * inability to comply with study and/or follow-up procedures