ClinicalTrials.gg
CompletedNCT03456063Updated Oct 9, 2026Results posted

A Study of Neoadjuvant Atezolizumab Plus Chemotherapy Versus Placebo Plus Chemotherapy in Patients With Resectable Stage II, IIIA, or Select IIIB Non-Small Cell Lung Cancer (IMpower030)

A Phase 3 interventional study of Atezolizumab (MPDL3280A), an engineered anti-PD-L1 antibody and Placebo Comparator in Non-Small-Cell Lung, sponsored by Hoffmann-La Roche. Completed at 117 sites in 24 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-09.

Sponsored by Hoffmann-La Roche · Phase 3, Interventional, and Treatment

Updated Oct 9, 2026Results postedStudy documents posted+2 moreGo to Updates ↓

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Phase
Phase 3
Study type
Interventional
Enrollment
453
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a randomized, double-blinded study designed to evaluate the efficacy, safety, pharmacokinetics, and immunogenicity of neoadjuvant treatment with atezolizumab (MPDL3280A) or placebo in combination with platinum-based chemotherapy in participants with resectable Stage II, IIIA, or select IIIB non-small cell lung cancer (NSCLC) followed by open-label adjuvant/postoperative atezolizumab or best supportive care and monitoring.

02

Conditions studied

  • Non-Small-Cell Lung
03

In context

Lead sponsor

Hoffmann-La Roche is the lead sponsor of 2,101 studies on the registry; 88 are open to participants now.

Of its 330 completed or terminated interventional studies of FDA-regulated products, 248 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • (ECOG) performance status 0 or 1
  • or cytologically confirmed, resectable Stage II, IIIA, or Select IIIB (T3N2 only) NSCLC of squamous or non-squamous histology. Staging should be based on the 8th edition of the AJCC/UICC staging system
  • Evaluation by an attending thoracic surgeon to confirm eligibility for an R0 resection with curative intent
  • Adequate pulmonary and cardiac function to undergo surgical resection
  • as defined by v1.1
  • Adequate hematologic and end organ function
  • Negative test at screening
  • Negative for active and at screening
  • Adequate tissue for IHC assessment

Exclusion criteria

Exclusion criteria:

  • NSCLC with histology of large cell neuroendocrine carcinoma or sarcomatoid carcinoma
  • Mixed NSCLC and small cell lung cancer histology
  • Any prior therapy for lung cancer
  • other than NSCLC within 5 years prior to randomization, with the exception of those with a negligible risk of or death treated expected curative outcome
  • Non-squamous NSCLC histology with activating ALK and EGFR mutation
  • Pregnant or lactating women
  • History of disease
  • History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, or evidence of active of active pneumonitis on screening chest Computed Tomography (CT) scan
  • Prior treatment with cluster of differentiation 137 (CD137) agonist or immune checkpoint blockade therapies, anti-programmed-death-1 (), and anti-PD-L1 therapeutic antibody
  • Severe infection within 4 weeks prior to randomization
  • Significant history of cardiovascular disease
Terms in these criteria, in plain language(11)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
453 participants (actual)

Study arms

  • Experimental
    Arm A: Atezolizumab + platinum-based chemotherapy

    Neoadjuvant treatment will consist of 4 cycles; atezolizumab + platinum-based chemotherapy Platinum-based chemotherapy may include: * carboplatin + pemetrexed * carboplatin + nab-paclitaxel * cisplatin + pemetrexed * cisplatin + gemcitabine Post-operative adjuvant treatment will consist of 16-cycles of atezolizumab

    Drug: Atezolizumab (MPDL3280A), an engineered anti-PD-L1 antibody · Drug: Nab-paclitaxel · Drug: Pemetrexed · Drug: Carboplatin · Drug: Cisplatin · Drug: Gemcitabine

  • Placebo comparator
    Arm B: Placebo + platinum-based chemotherapy

    Neoadjuvant treatment will consist of 4 cycles; placebo + platinum-based chemotherapy Platinum-based chemotherapy may include: * carboplatin + pemetrexed * carboplatin + nab-paclitaxel * cisplatin + pemetrexed * cisplatin + gemcitabine Participants will receive best supportive care and monitoring after surgery

    Drug: Placebo Comparator · Drug: Nab-paclitaxel · Drug: Pemetrexed · Drug: Carboplatin · Drug: Cisplatin · Drug: Gemcitabine

Interventions

  • Atezolizumab will be administered as intravenous (IV) infusion at a dose of 1200 milligrams (mg) on Day 1 of each 21-day cycle (every 3 weeks) for 4 cycles during the neoadjuvant treatment phase Atezolizumab will be administered as IV infusion at a dose of 1200 milligrams (mg) every 3 weeks for 16 cycles during the post-operative adjuvant phase

    Also known as: Tecentriq

  • DrugPlacebo Comparator

    Placebo will be administered as IV infusion at a dose of 1200 milligrams (mg) on Day 1 of each 21-day cycle for 4 cycles during the neoadjuvant treatment phase

  • Nab-paclitaxel 100 mg/m\^2 will be administered intravenously on Days 1, 8, and 15 of each 21 day cycle for 4 cycles during the neoadjuvant treatment phase

    Also known as: Abraxane

  • Pemetrexed 500 mg/m\^2 will be administered intravenously on Day 1 of each 21-day cycle for 4 cycles during the neoadjuvant treatment phase

    Also known as: Alimta

  • Carboplatin initial target AUC of 6 mg/mL/min will be administered intravenously on Day 1 of each 21-day cycle for 4 cycles during the neoadjuvant treatment phase

  • Cisplatin 75 mg/m\^2 will be administered intravenously on Day 1 of each 21-day cycle for 4 cycles during the neoadjuvant treatment phase

  • Gemcitabine 1250 mg/m\^2 will be administered intravenously on Day 1 and 8 of each 21-day cycle for 4 cycles during the neoadjuvant treatment phase

    Also known as: Gemzar

06

What researchers measure

Primary outcomes

  1. Stage IIB-IIIB Wild-type (WT): Independent Review Facility (IRF)-Assessed Event-free Survival (EFS)

    IRF-assessed EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: disease progression (PD) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the sum of diameters (SOD) of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 millimeters (mm) or unequivocal progression of existing non-target lesions. Kaplan-Meier (K-M) method was used to estimate median IRF-assessed EFS.

    Time frame: Up to 87.8 months

  2. EGFR/ALK WT-ITT: IRF-assessed EFS

    IRF-assessed EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate median IRF-assessed EFS.

    Time frame: Up to 87.8 months

Secondary outcomes

  1. Stage IIB-IIIB WT: IRF-assessed Pathological Complete Response (pCR) Rate

    IRF-assessed pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  2. EGFR/ALK WT-ITT: IRF-assessed pCR Rate

    IRF-assessed pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  3. Stage IIB-IIIB WT: IRF-assessed Major Pathological Response (MPR) Rate

    IRF-assessed MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  4. EGFR/ALK WT-ITT: IRF-assessed MPR Rate

    IRF-assessed MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  5. Stage IIB-IIIB WT: Investigator-assessed MPR Rate at the Time of Surgical Resection

    MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  6. EGFR/ALK WT-ITT: Investigator-assessed MPR Rate at the Time of Surgical Resection

    MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  7. Stage IIB-IIIB WT: Investigator-assessed pCR Rate at the Time of Surgical Resection

    pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  8. EGFR/ALK WT-ITT: Investigator-assessed pCR Rate at the Time of Surgical Resection

    pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

    Time frame: At the time of surgery (from Day 114 to Day 144)

  9. Stage IIB-IIIB WT: Investigator-Assessed Objective Response Rate (ORR)

    ORR was defined as the percentage of participants with a best overall response of complete response (CR) or partial response (PR), as assessed by the investigator (confirmation not required) according to RECIST v1.1 during the neo-adjuvant treatment phase. CR was defined as the disappearance of all target and non-target lesions \& normalization of tumor marker level. Additionally, any pathological lymph nodes (whether target or non-target) must have a reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. Percentages have been rounded off.

    Time frame: Up to 89.5 months

  10. EGFR/ALK WT-ITT: Investigator-Assessed ORR

    ORR was defined as the percentage of participants with a best overall response of CR or PR, as assessed by the investigator (confirmation not required) according to RECIST v1.1 during the neo-adjuvant treatment phase. CR was defined as the disappearance of all target and non-target lesions \& normalization of tumor marker level. Additionally, any pathological lymph nodes (whether target or non-target) must have a reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. Percentages have been rounded off.

    Time frame: Up to 87.8 months

  11. Stage IIB-IIIB WT: Overall Survival (OS)

    OS was defined as the time from randomization to death from any cause during the course of the study. K-M method was used to estimate the median OS.

    Time frame: Up to 87.8 months

  12. EGFR/ALK WT-ITT: OS

    OS was defined as the time from randomization to death from any cause during the course of the study. K-M method was used to estimate the median OS.

    Time frame: Up to 87.8 months

  13. Stage IIB-IIIB WT: Investigator-assessed EFS

    EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate median Investigator-assessed EFS.

    Time frame: Up to 87.8 months

  14. EGFR/ALK WT-ITT: Investigator-assessed EFS

    EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate median Investigator-assessed EFS.

    Time frame: Up to 87.8 months

  15. Stage IIB-IIIB WT: Investigator-assessed DFS

    DFS was defined as the time from the first date of no disease (i.e., date of surgery) to local or distant recurrence (including occurrence of new primary NSCLC), or death due to any cause, whichever occurred first, as determined by the investigator during the adjuvant treatment and observation follow-up. DFS was analyzed only for participants who underwent surgery and had no evidence of residual NSCLC disease. K-M method was used to estimate median investigator-assessed DFS.

    Time frame: From day of surgery (any time from Day 114 to Day 144) up to 87.8 months

  16. EGFR/ALK WT-ITT: Investigator-assessed DFS

    DFS was defined as the time from the first date of no disease (i.e., date of surgery) to local or distant recurrence (including occurrence of new primary NSCLC), or death due to any cause, whichever occurred first, as determined by the investigator during the adjuvant treatment and observation follow-up. DFS was analyzed only for participants who underwent surgery and had no evidence of residual NSCLC disease. K-M method was used to estimate median investigator-assessed DFS.

    Time frame: From day of surgery (any time from Day 114 to Day 144) up to 87.8 months

  17. Stage IIB-IIIB WT: 2-year and 3-year OS Rate During the Study

    2-year and 3-year OS rates were defined as the percentage of participants who were alive 2 years and 3 years after randomization. OS was defined as the time from randomization to death from any cause. K-M method was used to estimate the OS rate. Percentages have been rounded off.

    Time frame: At Years 2 and 3

  18. EGFR/ALK WT-ITT: 2-year and 3-year OS Rate During the Study

    2-year and 3-year OS rates were defined as the percentage of participants who were alive 2 years and 3 years after randomization. OS was defined as the time from randomization to death from any cause. K-M method was used to estimate the OS rate. Percentages have been rounded off.

    Time frame: At Years 2 and 3

  19. Stage IIB-IIIB WT: 2-year and 3-year IRF-assessed EFS Rate During the Study

    2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. IRF-assessed EFS was defined as the time from randomization to the first occurrence of PD per RECIST v1.1 that precluded surgery, local or distant disease recurrence (including occurrence of new primary NSCLC), or death from any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

    Time frame: At Years 2 and 3

  20. EGFR/ALK WT-ITT: 2-year and 3-year IRF-assessed EFS Rate During the Study

    2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. IRF-assessed EFS was defined as the time from randomization to the first occurrence of PD per RECIST v1.1 that precluded surgery, local or distant disease recurrence (including occurrence of new primary NSCLC), or death from any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

    Time frame: At Years 2 and 3

  21. Stage IIB-IIIB WT: 2-year and 3-year Investigator-assessed EFS Rate During the Study

    2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

    Time frame: At Years 2 and 3

  22. EGFR/ALK WT-ITT: 2-year and 3-year Investigator-assessed EFS Rate During the Study

    2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

    Time frame: At Years 2 and 3

  23. Stage IIB-IIIB WT: Change From Baseline in Health-related Quality-of-life (HRQoL) Scores, as Assessed Using Global Health Status (GHS)/Quality of Life (QoL) Subscale of the European Organisation for Research and Treatment of Cancer (EORTC QLQ-C30)

    EORTC QLQ-C30 is a cancer-specific instrument with 30 questions to evaluate 5 aspects of participant functioning (physical, emotional, role, cognitive, \& social), 3 symptom scales (fatigue, nausea, vomiting, \& pain), GHS/QoL, and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea \& financial difficulties). Participants were asked to answer the following questions for GHS/QoL: "How would you rate your overall health during the past week?" and "How would you rate your overall QoL during the past week?" These questions were scored on a 7-point scale, with scores ranging from 1=Very poor to 7=Excellent. Scores were linearly transformed to a range of 0-100. High score on GHS/QoL scale indicates better HRQoL.

    Time frame: Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)

  24. EGFR/ALK WT-ITT: Change From Baseline in HRQoL Scores, as Assessed Using GHS/QoL Subscale of the EORTC QLQ-C30

    EORTC QLQ-C30 is a cancer-specific instrument with 30 questions to evaluate 5 aspects of participant functioning (physical, emotional, role, cognitive, \& social), 3 symptom scales (fatigue, nausea, vomiting, \& pain), GHS/QoL, and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea \& financial difficulties). Participants were asked to answer the following questions: "How would you rate your overall health during the past week?" and "How would you rate your overall QoL during the past week?" These questions were scored on a 7-point scale, with scores ranging from 1=Very poor to 7=Excellent. Scores were linearly transformed to range of 0-100. High score on GHS/QoL scale indicates better HRQoL.

    Time frame: Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)

  25. Number of Participants With Adverse Events (AEs), and Serious Adverse Events (SAEs)

    AE was defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE was therefore any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. SAE was any AE that met any of the following criteria: was fatal; was life-threatening; required or prolonged in-patient hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect; was a significant medical event in the investigator's judgment.

    Time frame: Up to approximately 23.44 months

  26. Number of Participants With Immune-mediated AEs

    AE was defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE was therefore any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Participants with immune-mediated AEs have been reported here.

    Time frame: Up to approximately 23.44 months

  27. Number of Participants With Surgical Delays

    Participants were scheduled to undergo surgical resection of their tumor upon completion of 4 cycles of neo-adjuvant therapy. Prior to the surgery, the attending surgeon and medical oncologist assessed the participant to check if it was clinically feasible for them to undergo surgery (pre-surgery visit). Pre-surgery visit occurred within 30 days after the last dose of neo-adjuvant treatment, and surgery was performed within 30 days after the pre-surgery visit. Assessment of surgical delays were made by assessing the data entered in the electronic case report forms (eCRFs).

    Time frame: Day of surgery (any time from Day 114 to Day 144) to approximately 3.2 months

  28. Length of Surgical Delays

    Time frame: Day of surgery (any time from Day 114 to Day 144) to approximately 3.2 months

  29. Number of Participants With Operative and Post-operative Complications

    Participants who underwent surgical resection of their tumor and had intraoperative or post-operative complications were reported.

    Time frame: From day of surgery (up to approximately 144 days) up to end of SFU (up to approximately 19.7 months)

  30. Number of Participants With Reasons for Surgical Cancellations

    Participants who did not undergo surgical resection for various reasons have been reported here.

    Time frame: From Day 114 (pre-surgery) to Day 144

  31. Serum Concentration of Atezolizumab at Specified Timepoints

    Time frame: Pre-dose on Day 1 of Cycles 1, 3, 5, 7, 11, and 19; 30 minutes post-dose on Day 1 of Cycles 1 and 5; Treatment discontinuation (TD) or OFU completion or early discontinuation (ED) (621 days); Predose on PD or disease recurrence visit (651 days)

  32. Number of Participants With Anti-drug Antibodies (ADAs) to Atezolizumab

    Participants were considered to be ADA positive if they were ADA negative or had missing data at baseline but developed an ADA response following atezolizumab exposure (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post-baseline samples was at least 0.60 titer unit greater than the titer of the baseline sample (treatment-enhanced ADA response).

    Time frame: Up to 20.44 months

07

Results

Posted Oct 9, 2026

Participant flow

A total of 451 participants with histologically or cytologically confirmed resectable Stage II, IIIA, or select IIIB (T3N2 only) non-small-cell lung cancer (NSCLC) took part in the study at 120 investigative sites across 24 countries from 24 April 2018 to 31 December 2025.

Neo-adjuvant Phase
Participant flow — Neo-adjuvant Phase
MilestonePlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Started225226
Safety-evaluable (se) population224226
Completed193181
Not completed3245
Withdrew: Adverse event1218
Withdrew: Death26
Withdrew: Physician decision713
Withdrew: Progressive disease43
Withdrew: Protocol violation01
Withdrew: Symptomatic deterioration20
Withdrew: Withdrawal by subject54
Adjuvant Phase
Participant flow — Adjuvant Phase
MilestonePlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Started179175
Completed111100
Not completed6875
Withdrew: Adverse event026
Withdrew: Death24
Withdrew: Physician decision15
Withdrew: Progressive disease4326
Withdrew: Protocol violation10
Withdrew: Withdrawal by subject89
Withdrew: Reason not specified135
Survival Follow-up (SFU) Phase
Participant flow — Survival Follow-up (SFU) Phase
MilestonePlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Started213213
Completed00
Not completed213213
Withdrew: Death8770
Withdrew: Lost to follow-up68
Withdrew: Physician decision11
Withdrew: Withdrawal by subject2016
Withdrew: Study ended by sponsor99117
Withdrew: Reason not specified01

Outcome measures

PrimaryStage IIB-IIIB Wild-type (WT): Independent Review Facility (IRF)-Assessed Event-free Survival (EFS)

IRF-assessed EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: disease progression (PD) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the sum of diameters (SOD) of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 millimeters (mm) or unequivocal progression of existing non-target lesions. Kaplan-Meier (K-M) method was used to estimate median IRF-assessed EFS.

Time frame:
Up to 87.8 months
Reported as:
Median · months
Stage IIB-IIIB Wild-type (WT): Independent Review Facility (IRF)-Assessed Event-free Survival (EFS)
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB Wild-type (WT): Independent Review Facility (IRF)-Assessed Event-free Survival (EFS)34.92 (24.57 to 63.80)62.78 (41.43 to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Log Rank · p = 0.0704 · Hazard ratio (hr): 0.77 · 95% CI 0.58 to 1.02
PrimaryEGFR/ALK WT-ITT: IRF-assessed EFS

IRF-assessed EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate median IRF-assessed EFS.

Time frame:
Up to 87.8 months
Reported as:
Median · months
EGFR/ALK WT-ITT: IRF-assessed EFS
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: IRF-assessed EFS43.86 (28.02 to 63.80)67.15 (49.15 to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Hazard ratio (hr): 0.75 · 95% CI 0.57 to 0.98
SecondaryStage IIB-IIIB WT: IRF-assessed Pathological Complete Response (pCR) Rate

IRF-assessed pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: IRF-assessed Pathological Complete Response (pCR) Rate
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: IRF-assessed Pathological Complete Response (pCR) Rate8.5 (5.00 to 13.20)29.6 (23.30 to 36.51)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in pcr rates: 21.13 · 95% CI 13.68 to 28.59
SecondaryEGFR/ALK WT-ITT: IRF-assessed pCR Rate

IRF-assessed pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: IRF-assessed pCR Rate
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: IRF-assessed pCR Rate8.6 (5.26 to 13.10)30.6 (24.56 to 37.16)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in pcr rates: 22.00 · 95% CI 14.86 to 29.13
SecondaryStage IIB-IIIB WT: IRF-assessed Major Pathological Response (MPR) Rate

IRF-assessed MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: IRF-assessed Major Pathological Response (MPR) Rate
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: IRF-assessed Major Pathological Response (MPR) Rate24.4 (18.61 to 30.92)53.6 (46.33 to 60.71)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in mpr rates: 29.19 · 95% CI 20.03 to 38.36
SecondaryEGFR/ALK WT-ITT: IRF-assessed MPR Rate

IRF-assessed MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the central pathology laboratory. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: IRF-assessed MPR Rate
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: IRF-assessed MPR Rate24.9 (19.33 to 31.13)54.3 (47.49 to 61.06)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in mpr rates: 29.45 · 95% CI 20.73 to 38.17
SecondaryStage IIB-IIIB WT: Investigator-assessed MPR Rate at the Time of Surgical Resection

MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: Investigator-assessed MPR Rate at the Time of Surgical Resection
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: Investigator-assessed MPR Rate at the Time of Surgical Resection23.4 (17.72 to 29.85)48.0 (40.79 to 55.19)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in mpr rates: 24.58 · 95% CI 15.46 to 33.70
SecondaryEGFR/ALK WT-ITT: Investigator-assessed MPR Rate at the Time of Surgical Resection

MPR rate was defined as the percentage of participants with ≤ 10% residual viable tumor cells in the primary tumor at the time of surgical resection, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: Investigator-assessed MPR Rate at the Time of Surgical Resection
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: Investigator-assessed MPR Rate at the Time of Surgical Resection24.0 (18.51 to 30.17)49.3 (42.51 to 56.13)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in mpr rates: 25.33 · 95% CI 16.64 to 34.02
SecondaryStage IIB-IIIB WT: Investigator-assessed pCR Rate at the Time of Surgical Resection

pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: Investigator-assessed pCR Rate at the Time of Surgical Resection
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: Investigator-assessed pCR Rate at the Time of Surgical Resection5.5 (2.76 to 9.58)18.9 (13.65 to 25.07)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in pcr rates: 13.40 · 95% CI 7.09 to 19.72
SecondaryEGFR/ALK WT-ITT: Investigator-assessed pCR Rate at the Time of Surgical Resection

pCR rate was defined as the percentage of participants with an absence of any viable primary tumor cells at the time of surgical resection in the primary tumor and all sampled lymph nodes, as assessed by the investigator site pathologist after surgical resection of the primary tumor. Participants who did not meet this criteria, including those who did not undergo surgical resection were considered as non-responders. Percentages have been rounded off.

Time frame:
At the time of surgery (from Day 114 to Day 144)
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: Investigator-assessed pCR Rate at the Time of Surgical Resection
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: Investigator-assessed pCR Rate at the Time of Surgical Resection5.4 (2.84 to 9.29)18.3 (13.38 to 24.03)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in pcr rates: 12.83 · 95% CI 6.91 to 18.76
SecondaryStage IIB-IIIB WT: Investigator-Assessed Objective Response Rate (ORR)

ORR was defined as the percentage of participants with a best overall response of complete response (CR) or partial response (PR), as assessed by the investigator (confirmation not required) according to RECIST v1.1 during the neo-adjuvant treatment phase. CR was defined as the disappearance of all target and non-target lesions \& normalization of tumor marker level. Additionally, any pathological lymph nodes (whether target or non-target) must have a reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. Percentages have been rounded off.

Time frame:
Up to 89.5 months
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: Investigator-Assessed Objective Response Rate (ORR)
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: Investigator-Assessed Objective Response Rate (ORR)54.2 (47.07 to 61.26)68.4 (61.36 to 74.81)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in overall response rates: 14.14 · 95% CI 4.66 to 23.62
SecondaryEGFR/ALK WT-ITT: Investigator-Assessed ORR

ORR was defined as the percentage of participants with a best overall response of CR or PR, as assessed by the investigator (confirmation not required) according to RECIST v1.1 during the neo-adjuvant treatment phase. CR was defined as the disappearance of all target and non-target lesions \& normalization of tumor marker level. Additionally, any pathological lymph nodes (whether target or non-target) must have a reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. Percentages have been rounded off.

Time frame:
Up to 87.8 months
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: Investigator-Assessed ORR
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: Investigator-Assessed ORR56.1 (49.29 to 62.76)68.0 (61.42 to 74.16)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in overall response rates: 11.93 · 95% CI 2.93 to 20.93
SecondaryStage IIB-IIIB WT: Overall Survival (OS)

OS was defined as the time from randomization to death from any cause during the course of the study. K-M method was used to estimate the median OS.

Time frame:
Up to 87.8 months
Reported as:
Median · months
Stage IIB-IIIB WT: Overall Survival (OS)
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: Overall Survival (OS)81.74 (66.79 to NA)NA (NA to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Hazard ratio (hr): 0.79 · 95% CI 0.57 to 1.09
SecondaryEGFR/ALK WT-ITT: OS

OS was defined as the time from randomization to death from any cause during the course of the study. K-M method was used to estimate the median OS.

Time frame:
Up to 87.8 months
Reported as:
Median · months
EGFR/ALK WT-ITT: OS
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: OS81.74 (63.80 to NA)NA (NA to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Hazard ratio (hr): 0.77 · 95% CI 0.57 to 1.05
SecondaryStage IIB-IIIB WT: Investigator-assessed EFS

EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate median Investigator-assessed EFS.

Time frame:
Up to 87.8 months
Reported as:
Median · months
Stage IIB-IIIB WT: Investigator-assessed EFS
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: Investigator-assessed EFS34.56 (24.18 to 51.58)62.78 (41.76 to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Hazard ratio (hr): 0.70 · 95% CI 0.53 to 0.93
SecondaryEGFR/ALK WT-ITT: Investigator-assessed EFS

EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate median Investigator-assessed EFS.

Time frame:
Up to 87.8 months
Reported as:
Median · months
EGFR/ALK WT-ITT: Investigator-assessed EFS
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: Investigator-assessed EFS36.53 (26.97 to 60.75)64.95 (47.18 to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Hazard ratio (hr): 0.71 · 95% CI 0.55 to 0.93
SecondaryStage IIB-IIIB WT: Investigator-assessed DFS

DFS was defined as the time from the first date of no disease (i.e., date of surgery) to local or distant recurrence (including occurrence of new primary NSCLC), or death due to any cause, whichever occurred first, as determined by the investigator during the adjuvant treatment and observation follow-up. DFS was analyzed only for participants who underwent surgery and had no evidence of residual NSCLC disease. K-M method was used to estimate median investigator-assessed DFS.

Time frame:
From day of surgery (any time from Day 114 to Day 144) up to 87.8 months
Reported as:
Median · months
Stage IIB-IIIB WT: Investigator-assessed DFS
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Stage IIB-IIIB WT: Investigator-assessed DFS47.74 (24.15 to 66.00)82.69 (53.62 to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Hazard ratio (hr): 0.66 · 95% CI 0.48 to 0.91
SecondaryEGFR/ALK WT-ITT: Investigator-assessed DFS

DFS was defined as the time from the first date of no disease (i.e., date of surgery) to local or distant recurrence (including occurrence of new primary NSCLC), or death due to any cause, whichever occurred first, as determined by the investigator during the adjuvant treatment and observation follow-up. DFS was analyzed only for participants who underwent surgery and had no evidence of residual NSCLC disease. K-M method was used to estimate median investigator-assessed DFS.

Time frame:
From day of surgery (any time from Day 114 to Day 144) up to 87.8 months
Reported as:
Median · months
EGFR/ALK WT-ITT: Investigator-assessed DFS
monthsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
EGFR/ALK WT-ITT: Investigator-assessed DFS54.41 (30.23 to 66.00)82.69 (54.31 to NA)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Hazard ratio (hr): 0.67 · 95% CI 0.49 to 0.90
SecondaryStage IIB-IIIB WT: 2-year and 3-year OS Rate During the Study

2-year and 3-year OS rates were defined as the percentage of participants who were alive 2 years and 3 years after randomization. OS was defined as the time from randomization to death from any cause. K-M method was used to estimate the OS rate. Percentages have been rounded off.

Time frame:
At Years 2 and 3
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: 2-year and 3-year OS Rate During the Study
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Year 279.86 (74.05 to 85.67)84.17 (78.98 to 89.37)
Year 370.19 (63.51 to 76.87)78.19 (72.27 to 84.10)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 4.32 · 95% CI -3.48 to 12.12
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 8.00 · 95% CI -0.93 to 16.92
SecondaryEGFR/ALK WT-ITT: 2-year and 3-year OS Rate During the Study

2-year and 3-year OS rates were defined as the percentage of participants who were alive 2 years and 3 years after randomization. OS was defined as the time from randomization to death from any cause. K-M method was used to estimate the OS rate. Percentages have been rounded off.

Time frame:
At Years 2 and 3
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: 2-year and 3-year OS Rate During the Study
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Year 280.85 (75.44 to 86.26)84.02 (79.10 to 88.95)
Year 371.16 (64.88 to 77.44)78.22 (72.64 to 83.79)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 3.17 · 95% CI -4.15 to 10.49
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 7.06 · 95% CI -1.34 to 15.46
SecondaryStage IIB-IIIB WT: 2-year and 3-year IRF-assessed EFS Rate During the Study

2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. IRF-assessed EFS was defined as the time from randomization to the first occurrence of PD per RECIST v1.1 that precluded surgery, local or distant disease recurrence (including occurrence of new primary NSCLC), or death from any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

Time frame:
At Years 2 and 3
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: 2-year and 3-year IRF-assessed EFS Rate During the Study
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Year 258.78 (51.56 to 66.01)63.50 (56.51 to 70.49)
Year 349.39 (42.00 to 56.79)58.90 (51.73 to 66.07)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Z-test · p = 0.3575 · Difference in event-free rate: 4.72 · 95% CI -5.33 to 14.77
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Z-test · p = 0.0705 · Difference in event-free rate: 9.50 · 95% CI -0.79 to 19.80
SecondaryEGFR/ALK WT-ITT: 2-year and 3-year IRF-assessed EFS Rate During the Study

2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. IRF-assessed EFS was defined as the time from randomization to the first occurrence of PD per RECIST v1.1 that precluded surgery, local or distant disease recurrence (including occurrence of new primary NSCLC), or death from any cause, as assessed by the IRF. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

Time frame:
At Years 2 and 3
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: 2-year and 3-year IRF-assessed EFS Rate During the Study
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Year 260.74 (53.93 to 67.55)65.19 (58.68 to 71.70)
Year 351.77 (44.76 to 58.78)61.13 (54.44 to 67.81)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 4.45 · 95% CI -4.97 to 13.87
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 9.36 · 95% CI -0.33 to 19.04
SecondaryStage IIB-IIIB WT: 2-year and 3-year Investigator-assessed EFS Rate During the Study

2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

Time frame:
At Years 2 and 3
Reported as:
Number · percentage of participants
Stage IIB-IIIB WT: 2-year and 3-year Investigator-assessed EFS Rate During the Study
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Year 257.36 (50.17 to 64.54)65.69 (58.86 to 72.52)
Year 347.73 (40.44 to 55.02)61.16 (54.12 to 68.21)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 8.33 · 95% CI -1.58 to 18.25
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 13.43 · 95% CI 3.29 to 23.57
SecondaryEGFR/ALK WT-ITT: 2-year and 3-year Investigator-assessed EFS Rate During the Study

2-year and 3-year EFS rates were defined as the percentage of participants who remained event-free 2 years and 3 years after randomization. EFS was defined as the time from the date of randomization to any of the following events, whichever occurred first: PD per RECIST v1.1 that precluded surgery; local or distant disease recurrence (including occurrence of new primary NSCLC); or death due to any cause, as assessed by the investigator. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD on study (including baseline). Additionally, the SOD must also demonstrate an absolute increase of ≥ 5 mm or unequivocal progression of existing non-target lesions. K-M method was used to estimate the EFS rates. Percentages have been rounded off.

Time frame:
At Years 2 and 3
Reported as:
Number · percentage of participants
EGFR/ALK WT-ITT: 2-year and 3-year Investigator-assessed EFS Rate During the Study
percentage of participantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Year 259.41 (52.62 to 66.19)67.11 (60.74 to 73.48)
Year 350.21 (43.28 to 57.15)63.11 (56.54 to 69.68)
Statistical analysis
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 7.70 · 95% CI -1.61 to 17.01
  • Placebo + Platinum-based Chemotherapy (Control) vs Atezolizumab + Platinum-based Chemotherapy · Difference in event-free rate: 12.89 · 95% CI 3.34 to 22.45
SecondaryStage IIB-IIIB WT: Change From Baseline in Health-related Quality-of-life (HRQoL) Scores, as Assessed Using Global Health Status (GHS)/Quality of Life (QoL) Subscale of the European Organisation for Research and Treatment of Cancer (EORTC QLQ-C30)

EORTC QLQ-C30 is a cancer-specific instrument with 30 questions to evaluate 5 aspects of participant functioning (physical, emotional, role, cognitive, \& social), 3 symptom scales (fatigue, nausea, vomiting, \& pain), GHS/QoL, and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea \& financial difficulties). Participants were asked to answer the following questions for GHS/QoL: "How would you rate your overall health during the past week?" and "How would you rate your overall QoL during the past week?" These questions were scored on a 7-point scale, with scores ranging from 1=Very poor to 7=Excellent. Scores were linearly transformed to a range of 0-100. High score on GHS/QoL scale indicates better HRQoL.

Time frame:
Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)
Reported as:
Mean · units on a scale
Stage IIB-IIIB WT: Change From Baseline in Health-related Quality-of-life (HRQoL) Scores, as Assessed Using Global Health Status (GHS)/Quality of Life (QoL) Subscale of the European Organisation for Research and Treatment of Cancer (EORTC QLQ-C30)
units on a scalePlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Baseline72.69 ± 20.3372.39 ± 20.53
Change on Day 1 of Cycle 2-0.05 ± 18.07-1.08 ± 19.42
Change on Day 1 of Cycle 3-0.71 ± 19.52-1.70 ± 21.00
Change on Day 1 of Cycle 4-4.29 ± 21.48-2.44 ± 21.36
Change at Pre-surgery-4.55 ± 22.44-2.62 ± 22.70
Change at Thoracic Surgery-14.10 ± 20.807.78 ± 24.49
Change at Post-surgery-13.77 ± 24.13-11.68 ± 25.41
Change at OFU Visit 1-4.93 ± 21.36-4.61 ± 23.21
Change at OFU Visit 2-1.53 ± 21.48-0.41 ± 20.63
Change at OFU Visit 30.43 ± 22.951.65 ± 20.33
Change at OFU Visit 40.44 ± 19.07-0.20 ± 20.76
Change on Day 1 of Cycle 12—8.33 ± NA
Change at OFU Visit 5-1.76 ± 21.15-0.98 ± 22.29
Change at OFU Visit 62.08 ± 18.440.51 ± 21.50
Change at OFU Visit 72.38 ± 19.261.80 ± 19.04
Change on Day 1 of Cycle 18—8.33 ± NA
Change at OFU Visit 83.07 ± 20.231.48 ± 20.92
Change on Day 1 of Cycle 20—0.00 ± NA
Change at OFU Visit 9-8.33 ± 11.79—
Change at Treatment/Follow-up Discontinuation-4.50 ± 23.73-3.13 ± 23.39
Change at SFU Month 3-3.80 ± 25.81-1.58 ± 25.91
Change at SFU Month 6-3.17 ± 24.331.32 ± 25.24
Change at SFU Month 9-0.61 ± 23.450.51 ± 25.54
Change at SFU Month 12-1.84 ± 30.090.45 ± 22.45
Change at SFU Month 15-0.22 ± 27.02-0.29 ± 24.63
Change at SFU Month 186.67 ± 25.284.93 ± 24.23
Change at SFU Month 210.76 ± 28.166.53 ± 23.25
Change at SFU Month 2413.73 ± 30.896.79 ± 22.17
Change at SFU Month 274.55 ± 41.223.75 ± 29.55
Change at SFU Month 307.41 ± 35.2212.50 ± 21.54
Change at SFU Month 3322.22 ± 22.447.35 ± 28.85
Change at SFU Month 369.72 ± 31.3713.33 ± 22.29
Change at SFU Month 39-4.17 ± 53.039.26 ± 28.09
Change at SFU Month 42-3.33 ± 50.8912.50 ± 23.42
Change at SFU Month 45-25.00 ± 58.3313.89 ± 25.09
Change at SFU Month 488.33 ± 35.3625.00 ± 44.10
Change at SFU Month 51—-33.33 ± NA
Change at SFU Month 5416.67 ± NA-33.33 ± NA
Change at SFU Month 57-66.67 ± NA-33.33 ± NA
Change at SFU Month 60-66.67 ± NA—
SecondaryEGFR/ALK WT-ITT: Change From Baseline in HRQoL Scores, as Assessed Using GHS/QoL Subscale of the EORTC QLQ-C30

EORTC QLQ-C30 is a cancer-specific instrument with 30 questions to evaluate 5 aspects of participant functioning (physical, emotional, role, cognitive, \& social), 3 symptom scales (fatigue, nausea, vomiting, \& pain), GHS/QoL, and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea \& financial difficulties). Participants were asked to answer the following questions: "How would you rate your overall health during the past week?" and "How would you rate your overall QoL during the past week?" These questions were scored on a 7-point scale, with scores ranging from 1=Very poor to 7=Excellent. Scores were linearly transformed to range of 0-100. High score on GHS/QoL scale indicates better HRQoL.

Time frame:
Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)
Reported as:
Mean · units on a scale
EGFR/ALK WT-ITT: Change From Baseline in HRQoL Scores, as Assessed Using GHS/QoL Subscale of the EORTC QLQ-C30
units on a scalePlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Baseline72.43 ± 20.2172.78 ± 20.32
Change on Day 1 of Cycle 20.37 ± 18.08-1.33 ± 19.31
Change on Day 1 of Cycle 3-0.60 ± 19.27-2.07 ± 21.78
Change on Day 1 of Cycle 4-3.62 ± 21.19-2.67 ± 21.61
Change at Pre-surgery-4.10 ± 22.36-2.47 ± 22.75
Change at Thoracic Surgery-12.50 ± 20.877.78 ± 24.49
Change at Post-surgery-13.17 ± 23.79-12.36 ± 25.92
Change at OFU Visit 1-5.37 ± 20.76-4.82 ± 23.07
Change at OFU Visit 2-2.38 ± 21.57-0.61 ± 20.84
Change at OFU Visit 30.56 ± 22.521.69 ± 20.38
Change at OFU Visit 4-0.20 ± 19.90-0.42 ± 20.57
Change on Day 1 of Cycle 12—8.33 ± NA
Change at OFU Visit 5-1.92 ± 21.89-1.54 ± 22.49
Change at OFU Visit 61.64 ± 19.590.32 ± 21.28
Change at OFU Visit 71.95 ± 20.350.65 ± 18.98
Change on Day 1 of Cycle 18—8.33 ± NA
Change at OFU Visit 82.73 ± 20.660.89 ± 20.58
Change on Day 1 of Cycle 20—0.00 ± NA
Change at OFU Visit 9-8.33 ± 11.79—
Change at Treatment/Follow-up Discontinuation-4.81 ± 22.90-3.06 ± 22.87
Change at SFU Month 3-3.22 ± 25.47-1.75 ± 24.84
Change at SFU Month 6-2.64 ± 23.991.03 ± 24.42
Change at SFU Month 9-1.25 ± 23.650.88 ± 25.54
Change at SFU Month 12-1.90 ± 28.490.49 ± 21.38
Change at SFU Month 150.87 ± 25.680.00 ± 23.53
Change at SFU Month 186.90 ± 23.534.68 ± 23.41
Change at SFU Month 210.72 ± 27.515.62 ± 22.55
Change at SFU Month 2413.43 ± 30.005.91 ± 21.96
Change at SFU Month 274.55 ± 41.222.90 ± 28.49
Change at SFU Month 307.41 ± 35.2211.36 ± 20.98
Change at SFU Month 3322.22 ± 22.447.41 ± 27.99
Change at SFU Month 369.72 ± 31.3712.88 ± 21.20
Change at SFU Month 39-4.17 ± 53.038.33 ± 26.64
Change at SFU Month 42-3.33 ± 50.8912.50 ± 23.42
Change at SFU Month 45-25.00 ± 58.3310.71 ± 24.40
Change at SFU Month 488.33 ± 35.3618.06 ± 35.91
Change at SFU Month 51—2.78 ± 33.68
Change at SFU Month 5416.67 ± NA-33.33 ± NA
Change at SFU Month 57-66.67 ± NA-33.33 ± NA
Change at SFU Month 60-66.67 ± NA—
SecondaryNumber of Participants With Adverse Events (AEs), and Serious Adverse Events (SAEs)

AE was defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE was therefore any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. SAE was any AE that met any of the following criteria: was fatal; was life-threatening; required or prolonged in-patient hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect; was a significant medical event in the investigator's judgment.

Time frame:
Up to approximately 23.44 months
Reported as:
Count of participants · Participants
Number of Participants With Adverse Events (AEs), and Serious Adverse Events (SAEs)
ParticipantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
AEs222226
SAEs72105
SecondaryNumber of Participants With Immune-mediated AEs

AE was defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE was therefore any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Participants with immune-mediated AEs have been reported here.

Time frame:
Up to approximately 23.44 months
Reported as:
Count of participants · Participants
Number of Participants With Immune-mediated AEs
ParticipantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Immune-mediated Rash4183
Immune-mediated Hepatitis (Diagnosis & Lab Abnormalities)2838
Immune-mediated Hepatitis (Lab Abnormalities)2835
Immune-mediated Hypothyroidism533
Immune-Mediated Pneumonitis722
Immune-Mediated Hyperthyroidism621
Immune-Mediated Colitis36
Immune-Mediated Hepatitis (Diagnosis)15
Immune-Mediated Pancreatitis05
Immune-Mediated Adrenal Insufficiency03
Immune-Mediated Pericardial Disorders21
Immune-Mediated Severe Cutaneous Reactions12
Immune-Mediated Diabetes Mellitus02
Immune-Mediated Myositis (Myositis+Rhabdomyolysis)02
Immune-Mediated Nephritis11
Immune-Mediated Vasculitis11
Immune-Mediated Hypophysitis01
Immune-Mediated Myositis01
Other Immune-Mediated Ocular Inflammatory Toxicity01
SecondaryNumber of Participants With Surgical Delays

Participants were scheduled to undergo surgical resection of their tumor upon completion of 4 cycles of neo-adjuvant therapy. Prior to the surgery, the attending surgeon and medical oncologist assessed the participant to check if it was clinically feasible for them to undergo surgery (pre-surgery visit). Pre-surgery visit occurred within 30 days after the last dose of neo-adjuvant treatment, and surgery was performed within 30 days after the pre-surgery visit. Assessment of surgical delays were made by assessing the data entered in the electronic case report forms (eCRFs).

Time frame:
Day of surgery (any time from Day 114 to Day 144) to approximately 3.2 months
Reported as:
Count of participants · Participants
Number of Participants With Surgical Delays
ParticipantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Number of Participants With Surgical Delays2521
SecondaryLength of Surgical Delays
Time frame:
Day of surgery (any time from Day 114 to Day 144) to approximately 3.2 months
Reported as:
Median · weeks
Length of Surgical Delays
weeksPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Length of Surgical Delays1.3 (0 to 14)1.0 (0 to 14)
SecondaryNumber of Participants With Operative and Post-operative Complications

Participants who underwent surgical resection of their tumor and had intraoperative or post-operative complications were reported.

Time frame:
From day of surgery (up to approximately 144 days) up to end of SFU (up to approximately 19.7 months)
Reported as:
Count of participants · Participants
Number of Participants With Operative and Post-operative Complications
ParticipantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Intraoperative Complications107
Post-operative Complications1719
SecondaryNumber of Participants With Reasons for Surgical Cancellations

Participants who did not undergo surgical resection for various reasons have been reported here.

Time frame:
From Day 114 (pre-surgery) to Day 144
Reported as:
Count of participants · Participants
Number of Participants With Reasons for Surgical Cancellations
ParticipantsPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
Participant Withdrawal44
PD95
AEs58
Other58
SecondarySerum Concentration of Atezolizumab at Specified Timepoints
Time frame:
Pre-dose on Day 1 of Cycles 1, 3, 5, 7, 11, and 19; 30 minutes post-dose on Day 1 of Cycles 1 and 5; Treatment discontinuation (TD) or OFU completion or early discontinuation (ED) (621 days); Predose on PD or disease recurrence visit (651 days)
Reported as:
Geometric mean · micrograms per milliliter (µg/mL)
Serum Concentration of Atezolizumab at Specified Timepoints
micrograms per milliliter (µg/mL)Atezolizumab + Platinum-based Chemotherapy
Pre-dose on Day 1 of Cycle 1NA ± NA
30 minutes post-dose on Day 1 of Cycle 1394 ± 25.1
Pre-dose on Day 1 of Cycle 3116 ± 41.0
Pre-dose on Day 1 of Cycle 510.1 ± 1537.7
30 minutes post-dose on Day 1 of Cycle 5412 ± 73.5
Pre-dose on Day 1 of Cycle 7145 ± 67.1
Pre-dose on Day 1 of Cycle 11202 ± 42.9
Pre-dose on Day 1 of Cycle 19211 ± 40.1
TD or OFU completion or ED96.5 ± 522.7
PD or Disease Recurrence11.9 ± 121030.2
SecondaryNumber of Participants With Anti-drug Antibodies (ADAs) to Atezolizumab

Participants were considered to be ADA positive if they were ADA negative or had missing data at baseline but developed an ADA response following atezolizumab exposure (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post-baseline samples was at least 0.60 titer unit greater than the titer of the baseline sample (treatment-enhanced ADA response).

Time frame:
Up to 20.44 months
Reported as:
Count of participants · Participants
Number of Participants With Anti-drug Antibodies (ADAs) to Atezolizumab
ParticipantsAtezolizumab + Platinum-based Chemotherapy
Number of Participants With Anti-drug Antibodies (ADAs) to Atezolizumab46

Adverse events

Collected over SAEs and Other AEs: Up to approximately 23.44 months All-cause Mortality: Up to 89.5 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo + Platinum-based Chemotherapy (Control)92/224 (41.1%)72/224 (32.1%)217/224 (96.9%)
Atezolizumab + Platinum-based Chemotherapy81/226 (35.8%)105/226 (46.5%)224/226 (99.1%)
Most frequent serious events
Showing 10 of 162
Most frequent serious events
EventPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
PneumoniaInfections and infestations10/22414/226
Febrile neutropeniaBlood and lymphatic system disorders1/2248/226
Pulmonary embolismRespiratory, thoracic and mediastinal disorders0/2247/226
Neutrophil count decreasedInvestigations6/2242/226
Atrial fibrillationCardiac disorders5/2245/226
AnaemiaBlood and lymphatic system disorders3/2245/226
DyspnoeaRespiratory, thoracic and mediastinal disorders3/2245/226
PneumonitisRespiratory, thoracic and mediastinal disorders0/2245/226
Pleural effusionRespiratory, thoracic and mediastinal disorders4/2241/226
Pulmonary fistulaRespiratory, thoracic and mediastinal disorders4/2240/226
Most frequent other events
Showing 10 of 64
Most frequent other events
EventPlacebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based Chemotherapy
AnaemiaBlood and lymphatic system disorders108/22494/226
NauseaGastrointestinal disorders90/224104/226
FatigueGeneral disorders73/22484/226
ConstipationGastrointestinal disorders73/22482/226
NeutropeniaBlood and lymphatic system disorders75/22474/226
AlopeciaSkin and subcutaneous tissue disorders66/22456/226
DiarrhoeaGastrointestinal disorders47/22463/226
Procedural painInjury, poisoning and procedural complications52/22460/226
DyspnoeaRespiratory, thoracic and mediastinal disorders56/22443/226
Decreased appetiteMetabolism and nutrition disorders46/22456/226

Baseline characteristics

Intent-to-treat (ITT) population included all randomized participants, regardless of receipt of the assigned treatment.

Age, Continuous
Age, Continuous(years)Placebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based ChemotherapyTotal
Mean63.8 ± 9.364.0 ± 8.263.9 ± 8.7
Sex: Female, Male
Sex: Female, Male(Participants)Placebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based ChemotherapyTotal
Female7168139
Male154158312
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Placebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based ChemotherapyTotal
Hispanic or Latino121022
Not Hispanic or Latino197198395
Unknown or Not Reported161834
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Placebo + Platinum-based Chemotherapy (Control)Atezolizumab + Platinum-based ChemotherapyTotal
American Indian or Alaska Native000
Asian303969
Native Hawaiian or Other Pacific Islander011
Black or African American7916
White170161331
More than one race000
Unknown or Not Reported181634
08

Study locations

117 sites
  • Arizona Oncology
    Tucson, Arizona 85711, United States
  • USC Norris Cancer Center
    Los Angeles, California 90033, United States
  • The Center for Cancer Prevention and Treatment at St.Joseph Hospital of Orange
    Orange, California 92868, United States
  • UC Davis Cancer Center
    Sacramento, California 95817, United States
  • Scripps Clinic
    San Diego, California 92037, United States
  • National Jewish Health
    Denver, Colorado 80206, United States
  • Rocky Mountain Cancer Center
    Denver, Colorado 80218, United States
  • Georgetown University
    Washington D.C., District of Columbia 20007, United States
  • Washington Cancer Institute
    Washington D.C., District of Columbia 20010, United States
  • Illinois Cancer Care
    Peoria, Illinois 61615, United States
  • University of Michigan
    Ann Arbor, Michigan 48109, United States
  • Barbara Ann Karmanos Cancer Institute
    Detroit, Michigan 48201, United States
  • Minnesota Oncology Minneapolis
    Minneapolis, Minnesota 55404, United States
  • Mayo Clinic - Rochester
    Rochester, Minnesota 55905, United States
  • Mercy Clinic Cancer & Hematology
    Springfield, Missouri 65804, United States
  • Nebraska Methodist Estabrook Cancer Center
    Omaha, Nebraska 68114, United States
  • Northwell Health
    Lake Success, New York 11042, United States
  • NYU Langone Medical Center
    New York, New York 10016, United States
  • Columbia University Medical Center
    New York, New York 10032, United States
  • Levine Cancer Institute
    Charlotte, North Carolina 28204, United States
  • Lehigh Valley Health Network
    Allentown, Pennsylvania 18103, United States
  • Sarah Cannon Research Institute / Tennessee Oncology
    Nashville, Tennessee 37203, United States
  • Texas Oncology - South Austin
    Austin, Texas 78745, United States
  • Northwest Cancer Specialists - Vancouver
    Vancouver, Washington 98684, United States
  • St George Hospital
    Kogarah, New South Wales 2217, Australia
  • Box Hill Hospital
    Box Hill, Victoria 3128, Australia
  • Peter MacCallum Cancer Center
    Melbourne, Victoria 3000, Australia
  • Kepler Universitätskliniken GmbH - Med Campus III
    Linz, 4020, Austria
  • Ordensklinikum Linz Elisabethinen
    Linz, 4020, Austria
  • Klinik Penzing
    Vienna, 1140, Austria
  • Krankenhaus Nord - Klinik Floridsdorf
    Vienna, 1210, Austria
  • Cenantron - Centro Avancado de Tratamento Oncologico
    Belo Horizonte, Minas Gerais 30130-090, Brazil
  • Hospital Nossa Senhora da Conceicao
    Porto Alegre, Rio Grande do Sul 91350-200, Brazil
  • Instituto do Cancer do Estado de Sao Paulo - ICESP
    São Paulo, São Paulo 01246-000, Brazil
  • Shanghai Chest Hospital
    Shanghai, 200030, China
  • CHU Angers
    Angers, 49933, France
  • Centre Léon Bérard
    Lyon, 69008, France
  • Hopital d'Instruction des Armees de Begin
    Saint-Mandé, 94160, France
  • Centre Hospitalier Saint Quentin
    Saint-Quentin, 02321, France
  • CHU Strasbourg - Nouvel Hopital Civil
    Strasbourg, 67091, France
  • Hôpital d'Instruction des Armées de Sainte Anne
    Toulon, 83000, France
  • Universitätsklinikum Freiburg
    Freiburg im Breisgau, 79106, Germany
  • Asklepios-Fachkliniken Muenchen-Gauting
    Gauting, 82131, Germany
  • LungenClinic Großhansdorf GmbH
    Großhansdorf, 22927, Germany
  • Krankenhaus Martha-Maria Halle-Doelau gGmbH
    Halle, 06120, Germany
  • Pius-Hospital Oldenburg
    Oldenburg, 26121, Germany
  • Klinikum der Univer Regenburg
    Regensburg, 93053, Germany
  • Robert Bosch Krankenhaus
    Stuttgart, 70376, Germany
  • Missionsärztliche Klinik, Gemeinnützige Gesellschaft mbH
    Würzburg, 97074, Germany
  • Semmelweis Egyetem X
    Budapest, 1083, Hungary
  • Soroka Medical Center
    Beersheba, 8410101, Israel
  • Rambam Health Care Campus
    Haifa, 3109601, Israel
  • Meir Medical Center
    Kfar Saba, 4428164, Israel
  • Sourasky / Ichilov Hospital
    Tel Aviv, 6423906, Israel
  • Policlinico Universitario Campus Biomedico
    Rome, Lazio 00128, Italy
  • Irccs Istituto Nazionale Dei Tumori (Int)
    Milan, Lombardy 20133, Italy
  • Irccs Istituto Europeo Di Oncologia (IEO)
    Milan, Lombardy 20141, Italy
  • A.O. Universitaria Pisana-Ospedale Cisanello
    Pisa, Tuscany 56124, Italy
  • IOV - Istituto Oncologico Veneto - IRCCS
    Padova, Veneto 35128, Italy
  • Aichi Cancer Center Hospital
    Aichi, 464-8681, Japan
  • National Hospital Organization Kyushu Cancer Center
    Fukuoka, 811-1395, Japan
  • Hiroshima City Hiroshima Citizens Hospital
    Hiroshima, 730-8518, Japan
  • Hiroshima University Hospital
    Hiroshima, 734-8551, Japan
  • Kobe University Hospital
    Hyōgo, 650-0017, Japan
  • Hyogo Medical University Hospital
    Hyōgo, 663-8501, Japan
  • Kyoto University Hospital
    Kyoto, 606-8507, Japan
  • Fukushima Medical University Hospital
    Miyagi, 960-1295, Japan
  • Sendai Kousei Hospital
    Miyagi, 981-0914, Japan
  • Okayama University Hospital
    Okayama, 700-8558, Japan
  • Kurashiki Central Hospital
    Okayama, 710-8602, Japan
  • Osaka City General Hospital
    Osaka, 534-0021, Japan
  • Osaka International Cancer Institute
    Osaka, 541-8567, Japan
  • Juntendo University Hospital
    Tokyo, 113-8431, Japan
  • Tokyo Metropolitan Cancer and Infectious diseases Center Komagome Hospital
    Tokyo, 113-8677, Japan
  • The Cancer Institute Hospital of JFCR
    Tokyo, 135-8550, Japan
  • Tokyo Medical University Hospital
    Tokyo, 160-0023, Japan
  • Uniwersyteckie Centrum Kliniczne
    Gda?sk, 80-214, Poland
  • Krakowski Szpital Specjalistyczny im sw. Jana Paw?a II
    Krakow, 31-202, Poland
  • Narod.Inst.Onkol. im. M.Sklodowskiej - Curie-Panst.Inst.Bad
    Warsaw, 02-781, Poland
  • Main Military Clinical Hospital named after N.N. Burdenko
    Moscow, Moscow Oblast 105229, Russia
  • FSBI Russian Oncology Research Center n.a. Blokhin of MOH RF
    Moscow, Moscow Oblast 115478, Russia
  • S-Pb clinical scientific practical center of specialized kinds of medical care (oncological)
    Saint Petersburg, Sankt-Peterburg 197758, Russia
  • Scientific Research Oncology Institute named after N.N. Petrov
    Saint Petersburg, Sankt-Peterburg 197758, Russia
  • University Hospital Medical Center Bezanijska kosa
    Belgrade, 11080, Serbia
  • University Clinic Golnik
    Golnik, 4204, Slovenia
  • Medical Oncology Centre of Rosebank
    Johannesburg, 2196, South Africa
  • Eugene Marais Hospital
    Pretoria, South Africa
  • Kosin University Gospel Hospital
    Busan, 49267, South Korea
  • St. Vincent's Hospital
    Gyeonggi-do, 16247, South Korea
  • Seoul National University Hospital
    Seoul, 03080, South Korea
  • Gangnam Severance Hospital
    Seoul, 06273, South Korea
  • Korea University Guro Hospital
    Seoul, 08308, South Korea
  • Hospital Son Llatzer
    Palma de Mallorca, Balearic Islands 07198, Spain
  • Corporacio Sanitaria Parc Tauli
    Sabadell, Barcelona 08208, Spain
  • Clinica Universitaria de Navarra
    Pamplona, Navarre 31008, Spain
  • Hospital de Basurto
    Bilbao, Vizcaya 48013, Spain
  • Hospital Universitari Vall d'Hebron
    Barcelona, 08035, Spain
  • Hospital Clinico San Carlos
    Madrid, 28040, Spain
  • Hospital Regional Universitario Carlos Haya
    Málaga, 29010, Spain
  • Hospital Universitario Virgen Macarena
    Seville, 41009, Spain

Showing the first 100 of 117 sites across 24 countries. Choose a country and city above to see the rest.

09

References and documents

Publications

  • Romero Roman A, Campo-Canaveral de la Cruz JL, Macia I, Escobar Campuzano I, Figueroa Almanzar S, Delgado Roel M, Galvez Munoz C, Garcia Fontan EM, Muguruza Trueba I, Romero Vielva L, Cano Garcia JR, Martinez Tellez E, Partida Gonzalez C, Jimenez Lopez MF, Jimenez Maestre U, Mongil Poce R, Sanchez Lorente D, Alvarez Kindelan A, Provencio Pulla M. Outcomes of surgical resection after neoadjuvant chemoimmunotherapy in locally advanced stage IIIA non-small-cell lung cancer. Eur J Cardiothorac Surg. 2021 Jul 14;60(1):81-88. doi: 10.1093/ejcts/ezab007. PubMed 33661301 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — For eligible studies, qualified researchers may request access to individual patient level clinical data. See Roche's commitment to transparency of clinical study information here: https://go.roche.com/data_sharing

10

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Apr 2018 to primary completion in Oct 2025, 89 months.

Results were first posted in Oct 2026, 1 year after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 5, 2018
First posted
Mar 7, 2018
StartActual
Apr 24, 2018
Primary completionActual
Oct 1, 2025
CompletionActual
Dec 31, 2025
Results first posted
Oct 9, 2026
Last update
Oct 9, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Results
Results posted
posted Oct 9, 2026
Sites
5 sites removed
Show 5 removed
  • Uni of Maryland Cancer Center · Baltimore, United States
  • Brighton Center for Specialty Care · Brighton, United States
  • NYU Winthrop Hospital · Mineola, United States
  • UT Health East Texas HOPE Cancer Center · Tyler, United States
  • Virginia Cancer Specialists, PC · Fairfax, United States
Oct 9, 2026
Primary outcomes
1 edited, 1 added
What changed in the outcomes
  • EditedStage IIB-IIIB Wild-type (WT): Independent Review Facility (IRF)-Assessed Event Free-free Survival (EFS)Time frame: Up to approximately 96 months → Up to 87.8 months
  • AddedEGFR/ALK WT-ITT: IRF-assessed EFSTime frame: Up to 87.8 months
Oct 9, 2026
Documents
Secondary outcomes
12 edited, 18 added, 9 more
What changed in the outcomes
  • EditedStage IIB-IIIB WT: IRF-assessed Pathological Complete Response (pCR) RateTime frame: At time of surgery → At the time of surgery (from Day 114 to Day 144)
  • EditedStage IIB-IIIB WT: IRF-assessed Major Pathological Response (MPR) RateTime frame: At time of surgery → At the time of surgery (from Day 114 to Day 144)
  • EditedStage IIB-IIIB WT: Overall Survival (OS)Time frame: Up to approximately 96 months → Up to 87.8 months
  • EditedStage IIB-IIIB WT: Investigator-Assessedassessed EFSTime frame: Up to approximately 96 months → Up to 87.8 months
  • EditedStage IIB-IIIB WT: 2-Yearyear and 3-Yearyear OS Rate During the StudyTime frame: Up to approximately 96 months → At Years 2 and 3
  • EditedStage IIB-IIIB WT: 2-Yearyear and 3-Year Independent Review Facilityyear IRF-Assessedassessed EFS Rate During the StudyTime frame: Up to approximately 96 months → At Years 2 and 3
  • EditedEGFR/ALK WT-ITT: 2-Yearyear and 3-Year Investigatoryear IRF-Assessedassessed EFS Rate During the StudyTime frame: Up to approximately 96 months → At Years 2 and 3
  • EditedPercentageNumber of Participants With Adverse Events (AEs), and Serious Adverse Events (SAEs)Time frame: Up to approximately 96 months → Up to approximately 23.44 months
  • EditedNumber of Participants With Surgical DelaysTime frame: Up to approximately 96 months → Day of surgery (any time from Day 114 to Day 144) to approximately 3.2 months
  • EditedNumber of Participants With Operative and Post-Operativeoperative ComplicationsTime frame: Up to approximately 96 months → From day of surgery (up to approximately 144 days) up to end of SFU (up to approximately 19.7 months)
  • EditedNumber of Participants With Reasons for Surgical CancellationsTime frame: Up to approximately 96 months → From Day 114 (pre-surgery) to Day 144
  • EditedPercentageNumber of Participants With Anti-Drug Antibodydrug Antibodies (ADAADAs) to AtezolizumabTime frame: Pre-dose on Day 1 of Cycles 1 and 3 for Neoadjuvant Treatment; Pre-dose on Day 1 of Cycles 5, 7, 9, 11 and 19 for Arm A. Each cycle is 21 days; at treatment or observation follow-up discontinuation (up to approximately 96 months) → Up to 20.44 months
  • AddedEGFR/ALK WT-ITT: IRF-assessed pCR RateTime frame: At the time of surgery (from Day 114 to Day 144)
  • AddedEGFR/ALK WT-ITT: IRF-assessed MPR RateTime frame: At the time of surgery (from Day 114 to Day 144)
  • AddedStage IIB-IIIB WT: Investigator-assessed MPR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
  • AddedEGFR/ALK WT-ITT: Investigator-assessed MPR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
  • AddedStage IIB-IIIB WT: Investigator-assessed pCR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
  • AddedEGFR/ALK WT-ITT: Investigator-assessed pCR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
  • AddedStage IIB-IIIB WT: Investigator-Assessed Objective Response Rate (ORR)Time frame: Up to 89.5 months
  • AddedEGFR/ALK WT-ITT: Investigator-Assessed ORRTime frame: Up to 87.8 months
  • AddedEGFR/ALK WT-ITT: OSTime frame: Up to 87.8 months
  • AddedEGFR/ALK WT-ITT: Investigator-assessed EFSTime frame: Up to 87.8 months
  • AddedStage IIB-IIIB WT: Investigator-assessed DFSTime frame: From day of surgery (any time from Day 114 to Day 144) up to 87.8 months
  • AddedEGFR/ALK WT-ITT: Investigator-assessed DFSTime frame: From day of surgery (any time from Day 114 to Day 144) up to 87.8 months
  • AddedEGFR/ALK WT-ITT: 2-year and 3-year OS Rate During the StudyTime frame: At Years 2 and 3
  • AddedStage IIB-IIIB WT: 2-year and 3-year Investigator-assessed EFS Rate During the StudyTime frame: At Years 2 and 3
  • AddedEGFR/ALK WT-ITT: 2-year and 3-year Investigator-assessed EFS Rate During the StudyTime frame: At Years 2 and 3
  • AddedStage IIB-IIIB WT: Change From Baseline in Health-related Quality-of-life (HRQoL) Scores, as Assessed Using Global Health Status (GHS)/Quality of Life (QoL) Subscale of the European Organisation for Research and Treatment of Cancer (EORTC QLQ-C30)Time frame: Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)
  • AddedEGFR/ALK WT-ITT: Change From Baseline in HRQoL Scores, as Assessed Using GHS/QoL Subscale of the EORTC QLQ-C30Time frame: Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)
  • AddedNumber of Participants With Immune-mediated AEsTime frame: Up to approximately 23.44 months
  • …and 9 more, on the record history on ClinicalTrials.gov ↗
Oct 9, 2026
Show all 1 update
  1. Oct 9, 2026
    Results posted
    5 sites removed
    Show 5 removed
    • Uni of Maryland Cancer Center · Baltimore, United States
    • Brighton Center for Specialty Care · Brighton, United States
    • NYU Winthrop Hospital · Mineola, United States
    • UT Health East Texas HOPE Cancer Center · Tyler, United States
    • Virginia Cancer Specialists, PC · Fairfax, United States
    Primary outcomes 1 edited, 1 added
    What changed in the outcomes
    • EditedStage IIB-IIIB Wild-type (WT): Independent Review Facility (IRF)-Assessed Event Free-free Survival (EFS)Time frame: Up to approximately 96 months → Up to 87.8 months
    • AddedEGFR/ALK WT-ITT: IRF-assessed EFSTime frame: Up to 87.8 months
    Secondary outcomes 12 edited, 18 added, 9 more
    What changed in the outcomes
    • EditedStage IIB-IIIB WT: IRF-assessed Pathological Complete Response (pCR) RateTime frame: At time of surgery → At the time of surgery (from Day 114 to Day 144)
    • EditedStage IIB-IIIB WT: IRF-assessed Major Pathological Response (MPR) RateTime frame: At time of surgery → At the time of surgery (from Day 114 to Day 144)
    • EditedStage IIB-IIIB WT: Overall Survival (OS)Time frame: Up to approximately 96 months → Up to 87.8 months
    • EditedStage IIB-IIIB WT: Investigator-Assessedassessed EFSTime frame: Up to approximately 96 months → Up to 87.8 months
    • EditedStage IIB-IIIB WT: 2-Yearyear and 3-Yearyear OS Rate During the StudyTime frame: Up to approximately 96 months → At Years 2 and 3
    • EditedStage IIB-IIIB WT: 2-Yearyear and 3-Year Independent Review Facilityyear IRF-Assessedassessed EFS Rate During the StudyTime frame: Up to approximately 96 months → At Years 2 and 3
    • EditedEGFR/ALK WT-ITT: 2-Yearyear and 3-Year Investigatoryear IRF-Assessedassessed EFS Rate During the StudyTime frame: Up to approximately 96 months → At Years 2 and 3
    • EditedPercentageNumber of Participants With Adverse Events (AEs), and Serious Adverse Events (SAEs)Time frame: Up to approximately 96 months → Up to approximately 23.44 months
    • EditedNumber of Participants With Surgical DelaysTime frame: Up to approximately 96 months → Day of surgery (any time from Day 114 to Day 144) to approximately 3.2 months
    • EditedNumber of Participants With Operative and Post-Operativeoperative ComplicationsTime frame: Up to approximately 96 months → From day of surgery (up to approximately 144 days) up to end of SFU (up to approximately 19.7 months)
    • EditedNumber of Participants With Reasons for Surgical CancellationsTime frame: Up to approximately 96 months → From Day 114 (pre-surgery) to Day 144
    • EditedPercentageNumber of Participants With Anti-Drug Antibodydrug Antibodies (ADAADAs) to AtezolizumabTime frame: Pre-dose on Day 1 of Cycles 1 and 3 for Neoadjuvant Treatment; Pre-dose on Day 1 of Cycles 5, 7, 9, 11 and 19 for Arm A. Each cycle is 21 days; at treatment or observation follow-up discontinuation (up to approximately 96 months) → Up to 20.44 months
    • AddedEGFR/ALK WT-ITT: IRF-assessed pCR RateTime frame: At the time of surgery (from Day 114 to Day 144)
    • AddedEGFR/ALK WT-ITT: IRF-assessed MPR RateTime frame: At the time of surgery (from Day 114 to Day 144)
    • AddedStage IIB-IIIB WT: Investigator-assessed MPR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
    • AddedEGFR/ALK WT-ITT: Investigator-assessed MPR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
    • AddedStage IIB-IIIB WT: Investigator-assessed pCR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
    • AddedEGFR/ALK WT-ITT: Investigator-assessed pCR Rate at the Time of Surgical ResectionTime frame: At the time of surgery (from Day 114 to Day 144)
    • AddedStage IIB-IIIB WT: Investigator-Assessed Objective Response Rate (ORR)Time frame: Up to 89.5 months
    • AddedEGFR/ALK WT-ITT: Investigator-Assessed ORRTime frame: Up to 87.8 months
    • AddedEGFR/ALK WT-ITT: OSTime frame: Up to 87.8 months
    • AddedEGFR/ALK WT-ITT: Investigator-assessed EFSTime frame: Up to 87.8 months
    • AddedStage IIB-IIIB WT: Investigator-assessed DFSTime frame: From day of surgery (any time from Day 114 to Day 144) up to 87.8 months
    • AddedEGFR/ALK WT-ITT: Investigator-assessed DFSTime frame: From day of surgery (any time from Day 114 to Day 144) up to 87.8 months
    • AddedEGFR/ALK WT-ITT: 2-year and 3-year OS Rate During the StudyTime frame: At Years 2 and 3
    • AddedStage IIB-IIIB WT: 2-year and 3-year Investigator-assessed EFS Rate During the StudyTime frame: At Years 2 and 3
    • AddedEGFR/ALK WT-ITT: 2-year and 3-year Investigator-assessed EFS Rate During the StudyTime frame: At Years 2 and 3
    • AddedStage IIB-IIIB WT: Change From Baseline in Health-related Quality-of-life (HRQoL) Scores, as Assessed Using Global Health Status (GHS)/Quality of Life (QoL) Subscale of the European Organisation for Research and Treatment of Cancer (EORTC QLQ-C30)Time frame: Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)
    • AddedEGFR/ALK WT-ITT: Change From Baseline in HRQoL Scores, as Assessed Using GHS/QoL Subscale of the EORTC QLQ-C30Time frame: Baseline; Day 1 Cycles 2,3,4,12,18,20; Pre-surgery (114 days); Surgery (144 days); Post-surgery (165 days); OFU visits 1-9 (every 2 cycles: cycles 5-21); Treatment/Follow-up discontinuation (621 days); SFU: every 3 months: Months 3-60 (1 Cycle=21 days)
    • AddedNumber of Participants With Immune-mediated AEsTime frame: Up to approximately 23.44 months
    • …and 9 more, on the record history on ClinicalTrials.gov ↗
    + 3 other changes: identifiers, verification date and index terms

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

11

Registry details

Key details

Study ID
NCT03456063
Lead sponsor
Hoffmann-La Roche
Responsible party
Sponsor
First posted
Mar 7, 2018
Start date
Apr 24, 2018
Primary completion
Oct 1, 2025
Completion
Dec 31, 2025
Results posted
Oct 9, 2026
Last update
Oct 9, 2026

Study contacts

Clinical Trials
study director · Hoffmann-La Roche

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Atezolizumab

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