The trial is taking place at:

Hospital Regional Universitario de Malaga | Hospital Civil - Rheumatology Department

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A Study of Tiragolumab in Combination With Atezolizumab Compared With Placebo in Combination With Atezolizumab in Patients With Previously Untreated Locally Advanced Unresectable or Metastatic PD-L1-Selected Non-Small Cell Lung Cancer (SKYSCRAPER-01)

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Status and phase

Active, not recruiting
Phase 3


Non-Small Cell Lung Cancer


Drug: Tiragolumab
Drug: Atezolizumab
Drug: Matching Placebo

Study type


Funder types



2022-502482-17-00 (Registry Identifier)
2019-002925-31 (EudraCT Number)

Details and patient eligibility


The purpose of the study is to evaluate the efficacy and safety of tiragolumab plus atezolizumab compared with placebo plus atezolizumab in participants with previously untreated locally advanced, unresectable or metastatic PD-L1-selected non-small cell lung cancer (NSCLC), with no epidermal growth factor receptor (EGFR) mutation or anaplastic lymphoma kinase (ALK) translocation. Eligible participants will be randomized in a 1:1 ratio to receive either tiragolumab plus atezolizumab or placebo plus atezolizumab.


620 patients




18+ years old


No Healthy Volunteers

Inclusion criteria

  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
  • Histologically or cytologically documented locally advanced or recurrent NSCLC not eligible for curative surgery and/or definitive radiotherapy with or without chemoradiotherapy, or metastatic Stage IV non-squamous or squamous NSCLC
  • No prior systemic treatment for metastatic NSCLC
  • High tumor tissue PD-L1 expression
  • Measurable disease per Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1)
  • Adequate hematologic and end-organ function
  • For participants enrolled in the extended China enrollment phase: current resident of mainland China or Taiwan and of Chinese ancestry.

Exclusion criteria

  • Known mutation in the EGFR gene or an ALK fusion oncogene
  • Symptomatic, untreated, or actively progressing central nervous system metastases
  • Active or history of autoimmune disease or immune deficiency
  • History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, or idiopathic pneumonitis, or evidence of active pneumonitis
  • Malignancies other than NSCLC within 5 years, with the exception of those with a negligible risk of metastasis or death treated with expected curative outcome
  • Severe infection within 4 weeks prior to initiation of study treatment
  • Positive test result for human immunodeficiency virus (HIV)
  • Active hepatitis B or hepatitis C
  • Treatment with investigational therapy within 28 days prior to initiation of study treatment
  • Prior treatment with CD137 agonists or immune checkpoint blockade therapies, anti-CTLA-4, anti-TIGIT, anti-PD-1, and anti-PD-L1 therapeutic antibodies
  • Treatment with systemic immunostimulatory agents within 4 weeks or 5 drug elimination half-lives prior to initiation of study treatment.

Trial design

Primary purpose




Interventional model

Parallel Assignment


Triple Blind

620 participants in 2 patient groups, including a placebo group

Tiragolumab + Atezolizumab
Experimental group
Participants will receive atezolizumab followed by tiragolumab every 3 weeks (Q3W) on Day 1 of each 21-day cycle until disease progression, loss of clinical benefit or unacceptable toxicity.
Drug: Atezolizumab
Drug: Tiragolumab
Placebo + Atezolizumab
Placebo Comparator group
Participants will receive atezolizumab followed by placebo Q3W on Day 1 of each 21-day cycle until disease progression, loss of clinical benefit or unacceptable toxicity.
Drug: Matching Placebo
Drug: Atezolizumab

Trial contacts and locations



Central trial contact

Reference Study ID Number: GO41717

Data sourced from

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