Trial Outcomes & Findings for A Study of Atezolizumab in Combination With Carboplatin Plus (+) Nab-Paclitaxel Compared With Carboplatin+Nab-Paclitaxel in Participants With Stage IV Non-Squamous Non-Small Cell Lung Cancer (NSCLC) (NCT NCT02367781)

Participants in this study included: histologically or cytologically confirmed, Stage IV non-squamous NSCLC; and no prior treatment for Stage IV non-squamous NSCLC. At the time of study completion a few participants that were still on maintenance treatment with atezolizumab were moved to another study, Post-Trial Access Program, or commercial use. Therefore, the reason for discontinuation was entered "Study terminated by Sponsor" for these participants.

A Study of Atezolizumab in Combination With Carboplatin Plus (+) Nab-Paclitaxel Compared With Carboplatin+Nab-Paclitaxel in Participants With Stage IV Non-Squamous Non-Small Cell Lung Cancer (NSCLC)

PFS is defined as the time between the date of randomization and the date of first documented disease progression as determined by the investigator according to RECIST v1.1 or death from any cause, whichever occurs first in the ITT-WT population.

OS is defined as the time between the date of randomization and date of death from any cause in the ITT-WT population.

PFS is defined as the time between the date of randomization and the date of first documented disease progression as determined by the investigator according to RECIST v1.1 or death from any cause, whichever occurs first. The ITT population was defined as all randomized participants, regardless of receipt of the assigned treatment. The PD-L1 expression population is defined as one of the following: PD-L1 IHC TC1/2/3 or IC1/2/3 population, defined as ITT participants with PD-L1 IHC TC1/2/3 or IC1/2/3 expression in baseline tumor tissue; PD-L1 IHC TC2/3 or IC2/3 population, defined as ITT participants with PD-L1 IHC TC2/3 or IC2/3 expression in baseline tumor tissue; PD-L1 IHC TC3 or IC3 population, defined as ITT participants with PD-L1 IHC TC3 or IC3 expression in baseline tumor tissue. The PD-L1 expression WT population is defined as the PD-L1 expression population excluding participants with an activating EGFR mutation or ALK translocation.

OS is defined as the time between the date of randomization and date of death from any cause in the ITT population.

OS is defined as the time between the date of randomization and date of death from any cause in the PD-L1 Expression Population and PD-L1 Expression WT Population. The PD-L1 expression population is defined as one of the following: PD-L1 IHC TC1/2/3 or IC1/2/3 population, defined as ITT participants with PD-L1 IHC TC1/2/3 or IC1/2/3 expression in baseline tumor tissue; PD-L1 IHC TC2/3 or IC2/3 population, defined as ITT participants with PD-L1 IHC TC2/3 or IC2/3 expression in baseline tumor tissue; PD-L1 IHC TC3 or IC3 population, defined as ITT participants with PD-L1 IHC TC3 or IC3 expression in baseline tumor tissue. The PD-L1 expression WT population is defined as the PD-L1 expression population excluding participants with an activating EGFR mutation or ALK translocation.

ORR (confirmation not required) is defined as the proportion of participants with an objective response, either CR or PR, with the use of RECIST v1.1, as determined by the investigator in the ITT-WT population.

ORR (confirmation not required) is defined as proportion of participants with an objective response, either CR or PR, with the use of RECIST v1.1, as determined by investigator in ITT population, PD-L1 Expression population, and PD-L1 Expression WT population. ITT population was defined as all randomized participants, regardless of receipt of the assigned treatment. PD-L1 expression population is defined as one of the following: PD-L1 IHC TC1/2/3 or IC1/2/3 population, defined as ITT participants with PD-L1 IHC TC1/2/3 or IC1/2/3 expression in baseline tumor tissue; PD-L1 IHC TC2/3 or IC2/3 population, defined as ITT participants with PD-L1 IHC TC2/3 or IC2/3 expression in baseline tumor tissue; PD-L1 IHC TC3 or IC3 population, defined as ITT participants with PD-L1 IHC TC3 or IC3 expression in baseline tumor tissue. PD-L1 expression WT population is defined as PD-L1 expression population excluding participants with an activating EGFR mutation or ALK translocation.

DOR,defined for participants with objective response (OR) as time from 1st documented OR to documented disease progression as determined by investigator using RECIST v1.1,or death from any cause,whichever occurs 1st.ITT defined as all randomized participants,regardless of receipt of assigned treatment.ITT-WT defined as ITT population excluding participants with activating EGFR mutation or ALK translocation.PD-L1 expression population is defined as one of following:PD-L1 IHC TC1/2/3 or IC1/2/3 population,defined as ITT participants with PD-L1 IHC TC1/2/3 or IC1/2/3 expression in baseline tumor tissue;PD-L1 IHC TC2/3 or IC2/3 population, defined as ITT participants with PD-L1 IHC TC2/3 or IC2/3 expression in baseline tumor tissue;PD-L1 IHC TC3 or IC3 population,defined as ITT participants with PD-L1 IHC TC3 or IC3 expression in baseline tumor tissue.PD-L1 expression WT is defined as PD-L1 expression population excluding participants with activating EGFR mutation or ALK translocation.

The OS rate at the 1- and 2-year landmark time points after randomization.

The OS rate at the 1- and 2-year landmark time points after randomization in the PD-L1 Expression Population and PD-L1 Expression WT Population. The PD-L1 expression population is defined as one of the following: PD-L1 IHC TC1/2/3 or IC1/2/3 population, defined as ITT participants with PD-L1 IHC TC1/2/3 or IC1/2/3 expression in baseline tumor tissue; PD-L1 IHC TC2/3 or IC2/3 population, defined as ITT participants with PD-L1 IHC TC2/3 or IC2/3 expression in baseline tumor tissue; PD-L1 IHC TC3 or IC3 population, defined as ITT participants with PD-L1 IHC TC3 or IC3 expression in baseline tumor tissue. The PD-L1 expression WT population is defined as the PD-L1 expression population excluding participants with an activating EGFR mutation or ALK translocation.

Defined as time from randomization to confirmed deterioration (10-point change) on the combined European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire-Core (EORTC QLQ-C30) and supplemental lung cancer module (EORTC QLQ-LC13) symptom subscales.

Change from baseline per SILC scale will be analyzed for each lung cancer symptoms scores. SILC questionnaire comprises 3 individual symptoms \& are scored at individual symptom level, thus have a dyspnea score, chest pain score, \& cough score. There are a total of 9 questions in SILC questionnaire, each question has a minimum value of 0 \& maximum value of 4. Each individual symptom score is calculated as average of responses for symptom items. 'Chest pain' score is mean of question 1 \& 2, 'Cough' score is mean of question 3 \& 4 and 'Dyspnea' score is mean of question 5 to 9 in SILC questionnaire. An increase in score is suggestive of a worsening in symptomology. A score change of ≥0.3 points for dyspnea \& cough symptom scores is considered to be clinically significant; whereas a score change of≥0.5 points for chest pain score is considered to be clinically significant.

Percentage of participants with at least one adverse event. Adverse event onset date before cross over.

Baseline prevalence and post-baseline incidence of anti-drug antibodies (ADA) to Atezolizumab in the Arm A (Atezolizumab + Carboplatin or Cisplatin + Pemetrexed) and Arm B Carboplatin+nab-paclitaxel Crossover Participants

Predose samples will be collected on the same day of treatment administration. The infusion duration of atezolizumab will be of 30-60 minutes.

Predose samples will be collected on the same day of treatment administration.