Phase 2b Randomized Controlled Study of Tecemotide (L-BLP25) for Immunotherapy of NSCLC (Non-Small Cell Lung Cancer)

After receiving single low dose cyclophosphamide, subjects will receive 8 consecutive weekly subcutaneous vaccinations with 1000 microgram (mcg) of tecemotide (L-BLP25) at weeks 0, 1, 2, 3, 4, 5, 6 and 7 followed by maintenance vaccinations (1000 mcg of tecemotide (L-BLP25) at 6-week intervals, commencing at Week 13, until discontinuation from the study due to ECOG status of 4, participation in alternate trial, serious adverse event, or reasons that preclude assessment of clinical status in the opinion of the investigator, and in case of unavailability of study vaccine.

A single intravenous infusion of 300 milligram per square meter (mg/m\^2) (to a maximum 600 mg) of cyclophosphamide will be given 3 days before the first vaccine treatment.

The BSC will be provided at the investigator's discretion, and may include palliative radiation, psychosocial support, analgesics and nutritional support. Second-line chemotherapy is permitted when indicated for treatment of progressive disease.