Pilot Study of Performance Status 2 vs. Performance Status 0-1 Non-small Cell Lung Cancer Patients Treated With Chemo/Immunotherapy

ALL PARTICIPANTS: Pembrolizumab 200 mg intravenously (IV) on day 1 of each 3-week cycle for 4 cycles. Participants with predictive biomarker PD-L1 greater than or equal to 50% will not receive any other drugs besides pembrolizumab.

FOR PARTICIPANTS IN EITHER ARM with non-squamous OR squamous subtype, predictive biomarker PD-L1 less than 50%: Carboplatin area under the curve (AUC) 5 IV on day 1 of each 3-week cycle for 4 cycles.

FOR PARTICIPANTS IN EITHER ARM with squamous subtype, predictive biomarker PD-L1 less than 50%: Paclitaxel 200 mg/m2 IV on day 1 of each 3-week cycle for 4 cycles.

FOR PARTICIPANTS IN EITHER ARM with squamous subtype, predictive biomarker PD-L1 less than 50%: Nab-paclitaxel 100 mg/m2 on day 1, 8, 15 of 3-week cycle for 4 cycles.

The QLQ-C30 is composed of both multi-item scales and single-item measures. These include five functional scales, three symptom scales, a global health status / QoL scale, and six single items.

30 item questionnaire - Functional scales (physical, role, cognitive, emotional, social), symptom scales (fatigue, pain, and nausea and vomiting), global health status and quality of life scale, also several single-item symptom measures

Dyspnea scale scores in patients with respiratory disease (particularly COPD) to establish baseline functional dyspnea burden (taken pre-study at Week 0 and Post Treatment at week 13)

FOR PARTICIPANTS IN EITHER ARM with nonsquamous subtype, predictive biomarker PD-L1 less than 50%: Pemetrexed 500 mg/m2 IV on day 1 of each 3-week cycle for 4 cycles.