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A Study of Tiragolumab in Combination With Atezolizumab in Chemotherapy-Naïve Patients With Locally Advanced or Metastatic Non-Small Cell Lung Cancer

A Phase II, Randomized, Blinded, Placebo-Controlled Study of Tiragolumab, An Anti-TIGIT Antibody, In Combination With Atezolizumab In Chemotherapy-Naïve Patients With Locally Advanced Or Metastatic Non-Small Cell Lung Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03563716
Enrollment
135
Registered
2018-06-20
Start date
2018-08-10
Completion date
2025-11-14
Last updated
2026-05-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-small Cell Lung Cancer

Brief summary

This study will evaluate the safety and efficacy of tiragolumab plus atezolizumab compared with placebo plus atezolizumab in chemotherapy-naive patients with locally advanced unresectable or metastatic PD-L1-selected non-small cell lung cancer (NSCLC), excluding patients with a sensitizing EGFR mutation or ALK translocation.

Interventions

DRUGAtezolizumab

Atezolizumab at a fixed dose of 1200 mg will be administered first by IV infusion Q3W on Day 1 of each 21-day cycle.

DRUGTiragolumab

Tiragolumab at a fixed dose of 600 mg will be administered by IV infusion Q3W on Day 1 of each 21-day cycle.

DRUGPlacebo

Placebo will be administered by IV infusion Q3W on Day 1 of each 21-day cycle.

Sponsors

Genentech, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* ECOG Performance Status of 0 or 1 * Histologically or cytologically documented locally advanced unresectable NSCLC, recurrent, or metastatic NSCLC of either squamous or non-squamous histology * No prior systemic treatment for locally advanced unresectable or metastatic NSCLC * Tumor PD-L1 expression * Measurable disease, as defined by RECIST v1.1 * Life expectancy \>=12 weeks * Adequate hematologic and end-organ function * For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods, and agreement to refrain from donating eggs * For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures, and agreement to refrain from donating sperm

Exclusion criteria

Cancer-Specific Exclusions: * Patients with NSCLC known to have a sensitizing mutation in the EGFR gene or an ALK fusion oncogene * Symptomatic, untreated, or actively progressing central nervous system (CNS) metastases * Spinal cord compression not definitively treated with surgery and/or radiation, and/or previously diagnosed and treated spinal cord compression without evidence that disease has been clinically stable for \>=2 weeks prior to screening * History of leptomeningeal disease * Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures * Uncontrolled tumor-related pain * Uncontrolled hypercalcemia or symptomatic hypercalcemia requiring continued use of bisphosphonate therapy or denosumab * Malignancies other than NSCLC within 5 years prior to randomization, with the exception of those with a negligible risk of metastasis or death and/or treated with expected curative outcome General Medical Exclusions: * Pregnant and lactating women * Significant cardiovascular disease * Severe infections within 4 weeks prior to randomization * Major surgical procedure other than for diagnosis within 4 weeks prior to randomization Treatment-Specific Exclusions: * History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins; known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation * History of autoimmune disease * Prior allogeneic bone marrow transplantation or solid organ transplantation * History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on screening chest CT scan * Positive test for human immunodeficiency virus (HIV) and/or active hepatitis B or hepatitis C or active tuberculosis * Administration of a live, attenuated vaccine within 4 weeks prior to randomization

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR)From baseline until a total of 80 progression-free survival (PFS) events have occurred (up to approximately 11 months)ORR was defined as a complete response (CR) or partial response (PR) on two consecutive occasions ≥ 4 weeks apart, as determined by the investigator according to RECIST v1.1. CR was defined as disappearance of all target and non-target lesions and normalization of tumor marker levels. Any pathological lymph nodes (whether target or non-target lesions) must have a reduction in short axis to \<10 millimeters (mm). PR was defined as at least a 30% decrease in the sum of diameters (SOD) of all target lesions, taking as reference the baseline SOD, in the absence of CR. Percentages have been rounded off.
Progression-free Survival (PFS)From baseline until a total of 80 PFS events have occurred (up to approximately 11 months)PFS was defined as the time from randomization to the first occurrence of PD, as determined by the investigator according to RECIST v1.1, or death from any cause, whichever occurred first. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline) or unequivocal progression of existing non-target lesions. In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥5 mm. Kaplan-Meier (KM) methodology was used to estimate the median PFS.

Secondary

MeasureTime frameDescription
Duration of Objective Response (DOR)Up to approximately 36 monthsDOR was defined as the time from the first occurrence of a documented objective response (OR) (CR or PR) to PD, as determined by the investigator according to RECIST v1.1, or death from any cause, whichever occurred first. CR was defined as the disappearance of all target and non-target lesions and normalization of tumor marker levels. Any pathological lymph nodes (whether target or non-target lesions) 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. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline) or unequivocal progression of existing non-target lesions. In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥5 mm. KM methodology was used to estimate the median DOR.
Overall Survival (OS)Up to approximately 36 monthsOS was defined as the time from randomization to death from any cause. KM methodology was used to estimate the median OS.
Number of Participants With Adverse Events (AEs)From initiation of study drug up to approximately 83.7 monthsAn AE was any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be 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.
Minimum Serum Concentration (Cmin) of TiragolumabPredose on Day 1 of Cycles 1, 3 and 11 (Cycle length = 21 days)
Cmin of AtezolizumabPredose on Day 1 of Cycles 1, 3 and 11 (Cycle length = 21 days)
Number of Participants With Treatment-Emergent Anti-drug Antibodies (ADAs) to TiragolumabUp to approximately 36 monthsParticipants who received tiragolumab were considered to be treatment-emergent ADA-positive if they were ADA-negative or had missing data at baseline but developed an ADA response following tiragolumab 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 units (t.u.) greater than the titer of the baseline sample (treatment-enhanced ADA response). Participants with a positive post-baseline sample has been reported here.
Number of Participants With Treatment-Emergent ADAs to AtezolizumabUp to approximately 36 monthsParticipants who received atezolizumab were considered to be treatment-emergent 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 units (t.u.) greater than the titer of the baseline sample (treatment-enhanced ADA response). Participants with a positive post-baseline sample has been reported here.

Countries

France, Serbia, South Korea, Spain, Taiwan, United States

Contacts

STUDY_DIRECTORClinical Trials

Hoffmann-La Roche

Participant flow

Recruitment details

A total of 135 participants with previously untreated, locally advanced, unresectable, or metastatic programmed death-ligand 1 (PD-L1)-selected non-small cell lung cancer (NSCLC) took part in the study at 39 investigative sites across 6 countries from 08 Aug 2018 to 14 Nov 2025.

Pre-assignment details

Participants were randomized in a 1:1 ratio to receive either tiragolumab plus atezolizumab or placebo plus atezolizumab. The study is considered "Completed" because all the pre-planned study activities and analyses have been performed.

Participants by arm

ArmCount
Placebo + Atezolizumab
Participants received atezolizumab at a fixed dose of 1200 mg administered by IV infusion Q3W on Day 1 of each 21-day cycle and placebo administered by IV infusion Q3W on Day 1 of each 21-day cycle.
68
Tiragolumab + Atezolizumab
Participants received atezolizumab at a fixed dose of 1200 mg administered by IV infusion Q3W on Day 1 of each 21-day cycle and tiragolumab at a dose of 600 mg administered by IV infusion Q3W on Day 1 of each 21-day cycle.
67
Total135

Baseline characteristics

CharacteristicTiragolumab + AtezolizumabTotalPlacebo + Atezolizumab
Age, Continuous65.8 years
STANDARD_DEVIATION 10.4
66.4 years
STANDARD_DEVIATION 10.1
67.0 years
STANDARD_DEVIATION 9.9
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
60 Participants123 Participants63 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
6 Participants11 Participants5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
18 Participants41 Participants23 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
7 Participants11 Participants4 Participants
Race (NIH/OMB)
White
42 Participants82 Participants40 Participants
Sex: Female, Male
Female
28 Participants48 Participants20 Participants
Sex: Female, Male
Male
39 Participants87 Participants48 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
57 / 6851 / 67
other
Total, other adverse events
59 / 6863 / 67
serious
Total, serious adverse events
28 / 6840 / 67

Outcome results

Primary

Objective Response Rate (ORR)

ORR, defined as a complete response (CR) or partial response (PR) on two consecutive occasions \>/=4 weeks apart, as determined by the investigator according to RECIST v1.1. CR: Disappearance of all target lesions. PR: At least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR.

Time frame: From baseline until a total of 80 progression free survival (PFS) events have occurred (up to approximately 11 months)

Population: Intent-to-Treat (ITT) population included all participants randomized in the study.

ArmMeasureValue (NUMBER)
Placebo + AtezolizumabObjective Response Rate (ORR)16.2 percentage of participants
Tiragolumab + AtezolizumabObjective Response Rate (ORR)31.3 percentage of participants
Comparison: Stratified analysis based on PD-L1 immunohistochemistry (IHC) 22C3 pharmDx, tumor histology status, and tobacco history.95% CI: [1.07, 6.14]
Primary

Progression Free Survival (PFS)

PFS, defined as the time from randomization to the first occurrence of disease progression (PD), as determined by the investigator according to RECIST v1.1, or death from any cause, whichever occurs first. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum of diameters at prior timepoints (including baseline).

Time frame: From baseline until a total of 80 PFS events have occurred (up to approximately 11 months)

Population: ITT population included all participants randomized in the study.

ArmMeasureValue (MEDIAN)
Placebo + AtezolizumabProgression Free Survival (PFS)3.58 months
Tiragolumab + AtezolizumabProgression Free Survival (PFS)5.42 months
Comparison: Stratified analysis based on PD-L1 IHC 22C3 pharmDx, tumor histology status, and tobacco history.95% CI: [0.37, 0.9]
Secondary

Duration of Objective Response (DOR)

DOR, defined as the time from the first occurrence of a documented objective response (CR or PR) to disease progression (PD), as determined by the investigator according to RECIST v1.1, or death from any cause, whichever occurs first. CR: Disappearance of all target lesions. PR: At least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum of diameters at prior timepoints (including baseline).

Time frame: Up to 6 years

Secondary

Overall Survival (OS)

OS, defined as the time from randomization to death from any cause.

Time frame: Up to 6 years

Secondary

Percentage of Participants With Adverse Events

An adverse event is any untoward medical occurrence in a subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

Time frame: Up to 6 years

Secondary

Percentage of Participants With Treatment-Emergent Anti-Drug Antibodies (ADAs)

Time frame: Cycle 1 Day 1, Cycle 2 Day 1, Cycle 4 Day 1, Cycle 12 Day 1 (each cycle is 21 days)

Secondary

Serum Concentrations of Atezolizumab

Time frame: Cycle 1 Day 1, Cycle 2 Day 1, Cycle 4 Day 1, Cycle 12 Day 1 (each cycle is 21 days)

Secondary

Serum Concentrations of Tiragolumab

Time frame: Cycle 1 Day 1, Cycle 2 Day 1, Cycle 4 Day 1, Cycle 12 Day 1 (each cycle is 21 days)

Source: ClinicalTrials.gov · Data processed: May 5, 2026