Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks ( Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy and at least one additional therapy in locally advanced or metastatic setting.

This sub-group included participants from cohorts 2 and 3. All participants who were treated and had evaluable pharmacokinetic samples were included in this group.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 milligrams (mg) atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by intravenous (IV) infusion until intolerable toxicity, disease progression or death. All participants who were treated and had evaluable pharmacokinetic samples were included in this group.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21 day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants in this cohort received no prior chemotherapy in locally advanced or metastatic setting.

Participants received 1200 mg atezolizumab every 3 weeks (Day 1 of 21-day cycle) administered by IV infusion until intolerable toxicity, disease progression or death. Participants were permitted to continue treatment after progressive disease, if the following criteria were met: evidence of clinical benefit as assessed by the investigator; absence of symptoms and signs indicating unequivocal progression of disease; no decline in ECOG performance status; absence of tumor growth at critical anatomical sites that cannot be managed by protocol-allowed medical interventions; evidence of clinical benefit as assessed by the investigator. Participants in this cohort progressed during or after prior platinum-based chemotherapy in locally advanced or metastatic setting.