History of abdominal/pelvic or tracheoesophageal fistula or gastrointestinal perforation and/or abscess within months prior to initiation of treatment History of abdominal or tracheoesophageal fistula or gastrointestinal perforation within months prior to enrollment History of abdominal or tracheoesophageal fistula or gastrointestinal (GI) perforation within months of first study treatment History of abdominal or tracheoesophageal fistula or gastrointestinal perforation within months prior to cycle , day Previous history of abdominal fistula, tracheoesophageal fistula or other fistula with grade severity, gastrointestinal perforation or intra-abdominal abscess within months prior to enrollment History of abdominal or tracheoesophageal fistula or gastrointestinal perforation within months prior to cycle , day History of abdominal or tracheoesophageal fistula or gastrointestinal (GI) perforation within months of first study treatment History of abdominal or tracheoesophageal fistula, gastrointestinal (GI) perforation, or intra-abdominal abscess within months prior to Day History of abdominal or tracheoesophageal fistula or gastrointestinal (GI) perforation within months of first study treatment