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A Study Evaluating the Safety and Efficacy of Neoadjuvant and Adjuvant Tiragolumab Plus Atezolizumab, With or Without Platinum-Based Chemotherapy, in Participants With Previously Untreated Locally Advanced Resectable Stage II, IIIA, or Select IIIB Non-Small Cell Lung Cancer

A Phase II, Open-Label, Multicenter Study Evaluating the Safety and Efficacy of Neoadjuvant and Adjuvant Tiragolumab Plus Atezolizumab, With or Without Platinum-Based Chemotherapy, in Patients With Previously Untreated Locally Advanced Resectable Stage II, IIIA, or Select IIIB Non-Small Cell Lung Cancer

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04832854
Enrollment
50
Registered
2021-04-06
Start date
2021-04-23
Completion date
2025-03-05
Last updated
2026-03-11

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 (NSCLC)

Brief summary

This study will evaluate the surgical safety and feasibility of atezolizumab plus tiragolumab alone or in combination with platinum-based chemotherapy as neoadjuvant treatment for participants with previously untreated locally advanced non-small cell lung cancer (NSCLC). The study will also evaluate the efficacy, pharmacokinetics, immunogenicity, and safety of atezolizumab plus tiragolumab alone or in combination with platinum-based chemotherapy as neoadjuvant treatment, followed by adjuvant atezolizumab plus tiragolumab or adjuvant platinum-based chemotherapy.

Interventions

DRUGAtezolizumab

Atezolizumab 1200 mg will be administered by intravenous (IV) infusion on Day 1 of each 21-day cycle.

DRUGTiragolumab

Tiragolumab 600 mg will be administered by IV infusion on Day 1 of each 21-day cycle.

DRUGCarboplatin

Carboplatin at initial target area under the concentration curve (AUC) of 5 or 6 mg/mL/min will be administered by IV infusion on Day 1 of each 21-day cycle.

DRUGCisplatin

Cisplatin at 75 mg/m\^2 will be administered by IV infusion on Day 1 of each 21-day cycle.

DRUGPemetrexed

Pemetrexed at 500 mg/m\^2 will be administered by IV infusion on Day 1 of each 21-day cycle.

DRUGGemcitabine

Gemcitabine at 1000 or 1250 mg/m\^2 will be administered by IV infusion on Days 1 and 8 of each 21-day cycle.

DRUGPaclitaxel

Paclitaxel at 175 or 200 mg/m\^2 will be administered by IV infusion on Day 1 of each 21-day cycle.

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Key inclusion criteria: * Histologically or cytologically confirmed Stage II, IIIA, or select IIIB (T3N2 only) NSCLC of squamous or non-squamous histology * Eligible for R0 resection with curative intent at the time of screening * Adequate pulmonary function to be eligible for surgical resection with curative intent * Eligible to receive a platinum-based chemotherapy regimen * Measurable disease, as assessed by the investigator per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 * Availability of a representative tumor specimen that is suitable for determination of PD-L1 status * Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 * Normal life expectancy, excluding lung cancer mortality risk * Adequate hematologic and end-organ function * Negative human immunodeficiency virus (HIV) test at screening * Negative serology for active hepatitis B virus (HBV) and active hepatitis C virus (HCV) at screening Key

Exclusion criteria

* NSCLC with histology of large cell neuroendocrine carcinoma, sarcomatoid carcinoma, or NSCLC not otherwise specified * Small cell lung cancer (SCLC) histology or NSCLC with any component of SCLC * Any prior therapy for lung cancer * Active or history of autoimmune disease or immune deficiency * History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography (CT) scan * Active tuberculosis * Significant cardiovascular disease * NSCLC with an activating EGFR mutation or ALK fusion oncogene * Known c-ros oncogene 1 (ROS1) rearrangement * History of malignancy other than NSCLC within 5 years prior to screening, with the exception of malignancies with negligible risk of metastasis or death * Severe infection within 4 weeks prior to initiation of study treatment or any active infection that, in the opinion of the investigator, could impact patient safety * Prior treatment with CD127 agonists or immune checkpoint blockade therapies, including anti-CTLA-4, anti-PD-1, anti-TIGIT, and anti-PD-L1 therapeutic antibodies * Treatment with systemic immunostimulatory agents * Treatment with systemic immunosuppressive medication * Pregnancy or breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Surgical DelaysUp to approximately 4.7 monthsParticipants were scheduled to undergo surgical resection of their tumor upon completion of four 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-surgical assessment). Surgery was to be done within 30 days of the pre-surgical assessment visit. Assessment of surgical delays were made by assessing the data entered in the electronic case report forms (eCRFs).
Number of Participants With Operative and Post-operative ComplicationsFrom day of surgery up to end of safety follow-up (up to approximately 17.5 months)Participants who underwent surgical resection of their tumor and had intraoperative or post-operative complications were reported.
Number of Participants With Surgical Cancellations Related to Study TreatmentUp to approximately 4.7 monthsParticipants were scheduled to undergo surgical resection of their tumor upon completion of four cycles of neo-adjuvant therapy. Prior to the surgery, the attending surgeon and medical oncologist assessed the participant for to check if it was clinically feasible for them to undergo surgery (pre-surgical assessment). Surgery was to be done within 30 days of the pre-surgical assessment visit. Assessment of surgical delays were made by assessing the data entered in the eCRFs.
Number of Participants With Adverse Events (AEs)From signing of informed consent to up to 90 days after the final dose of study treatment (Up to approximately 1.7 years)AE=any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any of the following: Any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product; Any new disease or exacerbation of an existing disease; Recurrence of an intermittent medical condition not present at baseline; Any deterioration in a laboratory value or other clinical test that is associated with symptoms or leads to a change in study treatment or concomitant treatment or discontinuation from study treatment; AEs that are related to a protocol-mandated intervention, including those that occur prior to assignment of study treatment.
Major Pathological Response (MPR) RateAt the time of surgical resection (From Day 114 to Day 144)MPR rate was defined as the percentage of participants who achieved MPR. MPR was defined as ≤10% residual viable tumor at the time of surgical resection in the primary tumor, as assessed by the local pathology laboratory. Patients who did not proceed to surgery were considered as non-responders for MPR. 95% confidence interval (CI) was calculated using the Wilson Score Method. Percentages have been rounded off.

Secondary

MeasureTime frameDescription
Percentage of Participants With Pathological Complete Response (pCR)At the time of surgical resection (From Day 114 to Day 144)pCR was defined as the absence of any viable tumor cells in both the primary tumor and all sampled lymph nodes at the time of surgical resection, as assessed by local pathology laboratory. 95% CI was calculated using the Wilson Score Method. Percentages have been rounded off.
Event-free Survival (EFS)Up to approximately 3.8 yearsEFS was defined as the time from first dose of the study drug to any of the following events, whichever occurs first: disease progression that precludes surgery, as assessed by the investigator; local or distant disease recurrence (including occurrence of new primary NSCLC); or death from any cause. Median was estimated using Kaplan-Meier (K-M) method. 95% CI for median was computed using the method of Brookmeyer and Crowley.
Serum Concentrations of Atezolizumab at Specified TimepointsPrior to the first infusion on Day 1 of Cycles 1, 2, 3, 4, 5, 8, 12, and 16; 30 minutes (min) post-infusion Day 1 of Cycle 1; (Cycle=21 days)
Serum Concentrations of Tiragolumab at Specified TimepointsPrior to the first infusion on Day 1 of Cycles 1, 2, 3, 4, 5, 8, 12, 16; 30 minutes (min) post-infusion Cycle 1 Day 1; (Cycle=21 days)
Percentage of Participants With Anti-drug Antibodies (ADAs) to AtezolizumabUp to approximately 3.8 yearsParticipants 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). Percentages have been rounded off.
Percentage of Participants With ADAs to TiragolumabUp to approximately 3.8 yearsParticipants were considered to be 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 unit greater than the titer of the baseline sample (treatment-enhanced ADA response). Percentages have been rounded off.

Countries

Australia, South Korea, Spain, Switzerland, United States

Contacts

STUDY_DIRECTORClinical Trials

Hoffmann-La Roche

Participant flow

Recruitment details

A total of 50 participants with previously untreated, histologically or cytologically confirmed resectable Stage II, IIIA, or select IIIB non-small cell lung cancer (NSCLC) took part in the study at 20 centers across the United States, Republic of Korea, Australia, Switzerland, and Spain from 23 April 2021 to 05 March 2025.

Pre-assignment details

Participants were assigned to one of the 2 cohorts based on programmed death-ligand (PD-L1) status & received atezolizumab + tiragolumab (Atezo + Tira) alone or in combination with platinum-based chemotherapy (Atezo + Tira + Chemo) or chemotherapy alone as neo-adjuvant or adjuvant treatment. 2 participants did not receive any study treatment & were excluded from the safety analysis.

Baseline characteristics

Characteristic
Age, Continuous66.2 years
STANDARD_DEVIATION 8.2
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
44 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
16 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
33 Participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
35 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 75 / 41
other
Total, other adverse events
7 / 741 / 41
serious
Total, serious adverse events
2 / 713 / 41

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 12, 2026