Subjects must have recovered from the effects of major surgery or significant traumatic injury at least days prior to screening; no major surgery, other than diagnostic surgery, is allowed within weeks prior to treatment in the study Recovery from effects of any major surgery or significant traumatic injury at least days before the first dose of study treatment; endoscopic debridement of RRP lesions is NOT considered a major surgery Patients must have fully recovered from the effects of any major surgery or significant traumatic injury within days of course day (CD) Subjects must have recovered from the effects of major surgery or significant traumatic injury at least days before first treatment Participants must have recovered from the effects of major surgery requiring general anesthesia or significant traumatic injury at least days before treatment arm assignment Subjects who have not recovered from the effects of major surgery or significant traumatic injury at least days before the first dose of study treatment. Recovery from effects of any major surgery or significant traumatic injury at least days before the first dose of study treatment Subjects must have recovered from the effects of major surgery or significant traumatic injury at least days before registration Subjects must have recovered from the effects of major surgery requiring general anesthetic or significant traumatic injury at least days before Study Day . Major surgery within days prior to the first study treatment. Participants must have recovered from the effects of major surgery or significant traumatic injury at least days before the first dose of study treatment Major surgery or significant traumatic injury that is not recovered at least days before the initiation of thoracic radiation therapy Participants must have recovered from effects of any major surgery or significant traumatic injury at least days before the first dose of study treatment Fully recovered from the effects of any major surgery or significant traumatic injury prior to the first dose of study treatment Subjects who have not recovered from the effects of major surgery or significant traumatic injury at least days before the first dose of study treatment Subjects must have recovered from the effects of major surgery or significant traumatic injury at least days before enrollment Full recovery from the effects of any major surgery or significant traumatic injury within days prior to the first dose of study treatment Recovery from effects of any major surgery or significant traumatic injury at least days before the first dose of study treatment