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NCT03526900: ATEZO-BRAIN

Atezolizumab in Combination With Carboplatin Plus Pemetrexed in Chemotherapy-naïve Patients With Asymptomatic Brain Metastasis

Completed Phase 2 Results posted Last updated 9 October 2024
What this trial tests

Phase 2 trial testing Atezolizumab in Non-small Cell Lung Cancer Stage IV in 40 participants. Completed in 15 September 2022.

Timeline
7 July 2018
Primary endpoint
31 March 2022
15 September 2022

Quick facts

Lead sponsorSpanish Lung Cancer Group
PhasePhase 2
StatusCompleted
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment40
Start date7 July 2018
Primary completion31 March 2022
Estimated completion15 September 2022
Sites15 locations across Spain

Drugs / interventions tested

Conditions studied

Sponsor

Spanish Lung Cancer Group — full company profile →

Who can join

18 and older, any sex, with Non-small Cell Lung Cancer Stage IV. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Efficacy of Atezolizumab + CBDCA + Pemetrexed by Evaluating PFS Rate Primary · 12 weeks after enrollment

Percentage of subjects without disease progression (intracranial or systemic) at 12 weeks after enrollment. Determined by the investigator according to RANO and RECIST v1.1 criteria for brain and systemic disease respectively. Response Evaluation Criteria In Solid Tumors (RECIST v1.1) for target lesions and assessed by MRI:Complete Response(CR),Disappearance of all target lesions; Partial Response (PR) ≥30% decrease in the sum of the longest diameter of target lesions; Progressive disease (PD) ≥20% increase in the sum of diameters of target lesions. Reponse Evaluation criteria in brain metasta

GroupValue95% CI
Atezolizumab62.247.1 – 76.2
Efficacy of Atezolizumab + CBDCA + Pemetrexed by Measuring Objective Response. Secondary · Two consecutive evaluations 6 weeks apart

Objective response defined as a complete response or partial response on two consecutive evaluations 6 weeks apart, as determined by the investigator according to RANO and RECIST v1.1 criteria for brain and systemic disease respectively. Response Evaluation Criteria In Solid Tumors (RECIST v1.1) for target lesions and assessed by MRI: Complete Response(CR), Disappearance of all target lesions; Partial Response (PR) ≥30% decrease in the sum of the longest diameter of target lesions; Progressive disease (PD) ≥20% increase in the sum of diameters of target lesions. Reponse Evaluation criteria in

GroupValue95% CI
Atezolizumab18
Overall Response by RANO Criteria and Steroids Secondary · From the date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months.

To record the number of patients best response with steroid vs without steroid. Response Evaluation criteria in brain metastasis (RANO-BM) for target lesions and assessed by MRI: Complete Response (CR) Disappearance of all CNS target lesions, Partial response (PR) ≥30% decrease in the sum longest diameter of CNS target lesions; Overall Response (OR) = CR + PR. Progessive disease (PD) ≥20% increase in the sum longest diameter of CNS target lesions or a measurable increase in a non-target lesion, or the appearance of new lesions

GroupValue95% CI
Atezolizumab11
Atezolizumab7
Atezolizumab10
Atezolizumab10
Median Time to Brain Radiotherapy (WBRT or SRS) Secondary · From date of randomization until the date of first needed salvage therapy, assessed up to 48 months.

Register the median time to needed brain radiotherapy (WBRT or SRS).

GroupValue95% CI
Atezolizumab10.97.8 – 15.9

Adverse events — posted to ClinicalTrials.gov

Time frame: 48 months. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Atezolizumab
Serious: 7/40 (18%)
Deaths: 1/40

Serious adverse events (5 terms)

ReactionSystemAtezolizumab
PneumonitisRespiratory, thoracic and mediastinal disorders
Acute kidney injuryRenal and urinary disorders
NephritisRenal and urinary disorders
Pulmonary embolismVascular disorders
Febrile neutropeniaBlood and lymphatic system disorders
Other adverse events (9 terms — click to expand)

ReactionSystemAtezolizumab
FatigueGeneral disorders
AnemiaGeneral disorders
DiarrheaGastrointestinal disorders
AnorexiaGeneral disorders
Platelet count decreasedBlood and lymphatic system disorders
Alanine aminotransferase increasedHepatobiliary disorders
Neutrophil count decreasedBlood and lymphatic system disorders
Upper respiratory infectionRespiratory, thoracic and mediastinal disorders
Lipase increasedHepatobiliary disorders

Most-reported serious reactions: Pneumonitis, Acute kidney injury, Nephritis, Pulmonary embolism, Febrile neutropenia.

Data from ClinicalTrials.gov NCT03526900 adverse events section.

Sponsor's own description

This is a multicenter, national, nonrandomized, phase II trial in subjects with nonsquamous NSCLC patients that have untreated asymptomatic BM. A pre-screening period using brain MRI for patients diagnosed with advanced non-squamous NSCLC EGFR/ALK wild type and ECOG PS 0-1 will be crucial to identify patients with asyntomatic BM. Forty patients will be recruited.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Phase II Trial of Atezolizumab Combined With Carboplatin and Pemetrexed for Patients With Advanced Nonsquamous Non-Small-Cell Lung Cancer With Untreated Brain Metastases (Atezo-Brain, GECP17/05).
    Nadal E, Rodríguez-Abreu D, Simó M, Massutí B, et al · · 2023 · cited 79× · PMID 37603816 · DOI 10.1200/jco.22.02561
  2. Immunotherapy of brain metastases: breaking a "dogma".
    Di Giacomo AM, Valente M, Cerase A, Lofiego MF, et al · · 2019 · cited 69× · PMID 31623643 · DOI 10.1186/s13046-019-1426-2
  3. Exploring the Molecular Tumor Microenvironment and Translational Biomarkers in Brain Metastases of Non-Small-Cell Lung Cancer.
    Wen J, Yu JZ, Liu C, Ould Ismail AAO, et al · · 2024 · cited 13× · PMID 38396722 · DOI 10.3390/ijms25042044
  4. Immunotherapy in Non-Small Cell Lung Cancer Patients with Brain Metastases: Clinical Challenges and Future Directions.
    Pathak R, Amini A, Hill A, Massarelli E, et al · · 2021 · cited 13× · PMID 34298620 · DOI 10.3390/cancers13143407
  5. Progress in personalized immunotherapy for patients with brain metastasis.
    Patel L, Kolundzic N, Abedalthagafi M. · · 2025 · cited 9× · PMID 39880875 · DOI 10.1038/s41698-025-00812-0
  6. Profile of atezolizumab in the treatment of metastatic non-small-cell lung cancer: patient selection and perspectives.
    Facchinetti F, Bordi P, Leonetti A, Buti S, et al · · 2018 · cited 9× · PMID 30237696 · DOI 10.2147/dddt.s124380
  7. Immunotherapy in lung cancer brain metastases.
    Paisana E, Cascão R, Alvoeiro M, Félix F, et al · · 2025 · cited 8× · PMID 40328894 · DOI 10.1038/s41698-025-00901-0
  8. Metastatic brain tumors: from development to cutting-edge treatment.
    Tanzhu G, Chen L, Ning J, Xue W, et al · · 2025 · cited 8× · PMID 39712454 · DOI 10.1002/mco2.70020

Verify or expand the search:

Other trials of Atezolizumab

Trials testing the same drug.

Other recruiting trials for Non-small Cell Lung Cancer Stage IV

Currently open trials in the same condition.

Other Spanish Lung Cancer Group trials

Trials by the same sponsor.

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