Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of ? on the ECOG Performance Scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale up to days before treatment initiation Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale Has a performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale within days prior to first dose of pembrolizumab Eastern Cooperative Oncology Group (ECOG) performance scale (PS) of -; Karnofsky performance status >= % Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status or on Eastern Cooperative Oncology Group Performance Scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status or on Eastern Cooperative Oncology Group Performance Scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Patients must have a performance status of or Eastern Cooperative Oncology Group (ECOG) performance status (PS) scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on Eastern Cooperative Oncology Group (ECOG) Performance Scale; Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale or > % on the Karnofsky scale Have a performance status of or on the ECOG performance scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale. Have a performance status of , or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of , , or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of , to on the Eastern Cooperative Oncology Group (ECOG) performance scale; for purposes of HCT, this will correspond to a Karnofsky performance status of >= % Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale. Have a performance status of or using the Eastern Cooperative Oncology Group (ECOG) performance scale within days of first dose of study drug Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of , , or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of =< on the Eastern Cooperative Oncology Group (ECOG) performance scale Eastern Cooperative Oncology Group (ECOG) performance status =< or Karnofsky performance scale >= Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Subjects must have a performance status of , or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or using the Eastern Cooperative Oncology Group (ECOG) performance scale within days of first dose of study drug Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of to on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of , , or on the Eastern Cooperative Oncology Group (ECOG) performance scale at the time of screening Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of to on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of =< on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Patients must have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale Performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the ECOG Performance Scale. Performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale (PS) ECOG performance scale of - Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale at study entry Performance status must be Eastern Cooperative Oncology Group (ECOG) performance scale (PS) , , or Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale The subject must have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) (Zubrod) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale INCLUSION CRITERIA FOR ENROLLMENT: Eastern Cooperative Oncology Group (ECOG) performance status =< or Karnofsky performance scale (KPS) >= % Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Patient must have performance status =< on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale Patient must have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Patient must have performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale and life expectancy > months Patient must have performance status of - on the Eastern Cooperative Oncology Group (ECOG) Performance Scale and life expectancy > months Performance status of Karnofsky performance scale (KPS) >= or Eastern Cooperative Oncology Group (ECOG) = , , or Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of , or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Patients must have a performance status of =< on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of to on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale; (>= % Karnofsky performance score) Performance status (PS) , , or per the Eastern Cooperative Oncology Group (ECOG) performance status scale (Karnofsky performance score >= %) Has a performance status of or using the Eastern Cooperative Oncology Group (ECOG) Performance Scale within days of first dose of study drug. Has a performance status of , , or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale for Cohorts A and C and a performance status of or for Cohort B within days of study start Performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. Performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale within days prior to first dose of study medication Has performance status of , , or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale Has performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale Has a performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale Has performance status of , , or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. Performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Status scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of or using the Eastern Cooperative Oncology Group (ECOG) Performance Scale within days of first dose of study drug Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the ECOG performance scale Have a performance status of or on the ECOG Performance Scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the ECOG Performance Scale within days prior to registration. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of =< on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of < on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of =< on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status ? on the ECOG scale Participants must have an Eastern Cooperative Oncology Group (ECOG) performance status - or a Karnofsky performance scale (KP) >= % Performance status of - on the Eastern Cooperative Oncology Group (ECOG) Performance Scale and life expectancy > months Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of , or by the ECOG scale Has a performance status ? on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of to on the ECOG Scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Performance status of less than or equal to on ECOG scale. Eastern Cooperative Oncology Group (ECOG) performance status , , or or Karnofsky performance scale -% Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale; an ECOG performance status of is acceptable if the patient was ECOG / prior to curative intent therapy and is in the midst of recovery from curative intent therapy Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status =< or Karnofsky performance scale >= % Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of - on the Eastern Cooperative Oncology Group (ECOG) performance scale General performance status evaluated by ECOG - scale. Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale Has a performance status of or on the Eastern Cooperative Oncology Group (ECOG) Performance Scale. Have a performance status of =< Eastern Cooperative Oncology Group (ECOG) performance scale Have a performance status of or on the Eastern Cooperative Oncology Group (ECOG) performance scale