International normalized ratio (INR) < .; partial thromboplastin time (PTT) < . upper limit of normal (ULN); d-dimer < ng/mL International normalized ratio (INR) =< . and partial thromboplastin time (PPT) =< seconds above the upper limit of normal (ULN) International normalized ratio (INR)/partial thromboplastin time (PTT) has to be =< . x ULN International normalized ratio (INR) and partial thromboplastin time (PTT) < . x ULN International normalized ratio (INR) and activated partial thromboplastin time (PTT) < . x upper limit of normal (ULN) provided the patient is not on anticoagulation therapy International normalized ratio (INR)/partial thromboplastin time (PTT) =< . x ULN; unless patient is on therapeutic anticoagulation Serum coagulation studies (international normalized ratio [INR]/partial thromboplastin time [PTT]) and platelet counts suitable for surgery per surgeon discretion For patients undergoing serial tumor biopsies, international normalized ratio (INR) and activated partial thromboplastin time (PTT) must be within . X the upper limit of normal Normal blood coagulation as evidenced by partial thromboplastin time (PTT) < . IULN and international normalized ratio (INR) < . Within days prior to first dose of study drug treatment: International normalized ratio (INR) and partial thromboplastin time (PTT) =< . x ULN Serum prothrombin time, international normalized ratio (INR) and partial thromboplastin times which fall within normal limits or levels outside the normal range determined not to be clinically significant by the PI International normalized ratio (INR) and partial thromboplastin time (PTT) =< . x ULN International normalized ratio ?. ULN and partial thromboplastin time ? seconds above ULN. Only for patients who test positive for hepatitis B virus or hepatitis C virus: partial thromboplastin time (PTT)/international normalized ratio (INR) =< ULN (institutional) Subjects with coagulopathies, including thrombocytopenia with platelet count < ,, international normalized ratio (INR) > . and partial thromboplastin time > sec International normalized ratio (INR) > . and a partial thromboplastin time (PTT) > seconds Adequate coagulation system defined as an international normalized ratio (INR) of less than . and a partial thromboplastin time (PTT) of less than Partial thromboplastin time (PTT) =< , international normalized ratio (INR) =< . institutional ULN unless on warfarin therapy (investigator would need to determine if safe for participant to stop warfarin prior to [optional] biopsy) International normalized ratio (INR)/partial thromboplastin time (PTT) within . x upper limit of normal (Common Terminology Criteria for Adverse Events [CTCAE] . grade abnormality is acceptable) Abnormal laboratory values as defined by protocol for creatinine, creatinine clearance, aspartate transaminase (AST) or alanine transaminase (ALT), total bilirubin, international normalized ration (INR), partial thromboplastin time (PTT) or activated partial thromboplastin time (aPPT), unless these abnormalities are due to underlying lymphoma International normalized ratio (INR) =< . and partial thromboplastin time (PTT) within normal limits; (patients who are on therapeutic anticoagulation with warfarin should have documentation of INR =< . or PTT within normal limits prior to initiating that therapy) Partial thromboplastin time (PTT) must be =< X upper normal limit of institution's normal range and INR (international normalized ratio) < ; subjects on anticoagulant (such as Coumadin) must have a PTT =< X upper normal limit of institution's normal range and INR (international normalized ratio) < International normalized ratio (INR)/ partial thromboplastin time (PTT) =< . x ULN Patients must have an International Normalized Ratio (INR) < . and a partial thromboplastin time (PTT) no greater than upper limits of normal within week prior to randomization Activated partial thromboplastin time (APTT) must not exceed . seconds (normal range .-. seconds); international normalized ratio (INR) must not exceed . (normal range .-.) International Normalized Ratio (INR) and activated partial thromboplastin time [PTT] ? .ULN, if not therapeutically anticoagulated. International normalized ratio (INR) and partial thromboplastin time (PTT) ., or a partial thromboplastin time (PTT) > seconds Subjects unable to undergo routine endoscopy with biopsy:\r\n* Women who are pregnant or breastfeeding\r\n* Prothrombin time < % of control; partial thromboplastin time (PTT) > sec, or international normalized ratio (INR) > .\r\n* Inability to tolerate sedated upper endoscopy due to cardio-pulmonary instability or other significant medical issues Partial thromboplastin time (PTT) greater than seconds (sec) or international normalized ratio (INR) greater than . Subjects with coagulopathies, including thrombocytopenia with platelet count < ,, international normalized ratio (INR) > . and partial thromboplastin time > sec International Normalized Ratio (INR) and activated Partial Thromboplastin Time [PTT] within normal institutional limits internal normalized ratio and partial thromboplastin time <.x upper limit of normal