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Atezolizumab

Phase 3

Small-Cell Lung Cancer | Small molecule | Oncology |Jazz Pharmaceuticals plc|Last Updated: Jun 29, 2026

Target and mechanism

Molecular targetCD274
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment660

FDA Designations

No designations recorded

Clinical trial landscape

Atezolizumab · 1 trial · 1 indication

Phase 3 1
NCT05091567A Phase III, Open-Label Study of Maintenance Lurbinectedin in Combination With Atezolizumab Compared With Atezolizumab in Participants With Extensive-Stage Small-Cell Lung CancerSmall-Cell Lung Cancer
ACTIVE NOT_RECRUITING660 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Phase III, Open-Label Study of Maintenance Lurbinectedin in Combination With Atezolizumab Compared With Atezolizumab in Participants With Extensive-Stage Small-Cell Lung Cancer
Small-Cell Lung CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Randomized Phase: Independent Review Facility (IRF) - Assessed Progression Free Survival (PFS)
Up to 26 months

PFS was defined as the time from randomization to the date of first documented PD as determined by the IRF according to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) or death, whichever occurs first. PD was defined as appearance of a new lesion(s), unequivocal progression in non-target lesion(s) or at least a 20% increase in the sum of diameters (SOD) of target lesions, taking as reference the smallest sum on the study including baseline (nadir). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 millimetres (mm).

Randomized Phase: Overall Survival (OS)
Up to 26 months

OS was defined as the time from randomization to the date of death from any cause.

Secondary Endpoints

Randomized Phase: Investigator-assessed PFS
Up to 26 months
Randomized Phase: Confirmed Objective Response Rate (ORR) as Determined by the IRF
Up to 26 months
Randomized Phase: Confirmed ORR as Determined by the Investigator
Up to 26 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm A: Atezolizumab+LurbinectedinEXPERIMENTALInduction phase: participants will receive standard of care atezolizumab on Day 1 of each 21-day cycle in combination with carboplatin on Day 1 and etoposide on Days 1, 2, and 3 of each 21-day cycle for 4 cycles. Maintenance phase: participants will receive atezolizumab on Day 1 of each 21-day cycle in combination with lurbinectedin on Day 1 of each 21-day cycle.
Arm B: AtezolizumabACTIVE_COMPARATORInduction phase: participants will receive standard of care atezolizumab on Day 1 of each 21-day cycle in combination with carboplatin on Day 1 and etoposide on Days 1, 2, and 3 of each 21-day cycle for 4 cycles. Maintenance phase: participants will receive atezolizumab on Day 1 of each 21-day cycle.

Interventions

NameTypeDescription
AtezolizumabDRUGAtezolizumab will be administered intravenously at a fixed dose of 1200 mg on Day 1 of each 21-day cycle for 4 cycles in the induction phase. Atezolizumab will be administered intravenously at a fixed dose of 1200 mg on Day 1 of each 21-day cycle in the maintenance phase.
LurbinectedinDRUGLurbinectedin 3.2 mg/m² will be administered intravenously on Day 1 of each 21-day cycle in the maintenance phase.
CarboplatinDRUGCarboplatin will be administered according to the standard of care treatment for 4 cycles in the induction phase.
EtoposideDRUGEtoposide will be administered according to the standard of care treatment for 4 cycles in the induction phase.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites95

Inclusion Criteria for the Induction Phase: * ECOG PS of 0 or 1 * No prior systemic therapy for ES-SCLC * Treatment-free for at least 6 months since last chemo/radiotherapy, among those treated (with curative intent) with prior chemo/radiotherapy for limited-stage SCLC * Histologically or cytologic...

Countries:United StatesBelgiumGermanyGreeceHungaryItalyMexicoPolandSouth KoreaSpainTaiwanTurkey (Türkiye)United Kingdom
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Competitive Landscape -Non-Small Cell Lung Cancer 387 trials (matched to "Small-Cell Lung Cancer")

Recent Changes (Last 90 Days)

MEDIUMAug 1, 2026NCT05091567primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT05091567primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT05091567primaryCompletionDate: changed

Frequently asked questions about Atezolizumab

What is Atezolizumab used for in Small-Cell Lung Cancer?

Atezolizumab is an investigational drug being studied for the treatment of extensive-stage Small-Cell Lung Cancer. It is currently in a Phase 3 clinical trial as a maintenance therapy, given in combination with lurbinectedin, compared with atezolizumab alone, in participants with this condition.

What does Atezolizumab target?

Atezolizumab targets CD274, also known as PD-L1, and acts as an inhibitor of this target. By inhibiting CD274, the drug is designed to interfere with the interaction between PD-L1 and its receptors, which is a mechanism relevant to its investigation in oncology.

Who makes Atezolizumab?

Atezolizumab is being developed by Jazz Pharmaceuticals plc, a company traded on the stock exchange under the ticker JAZZ. The company is conducting clinical research on this drug for the treatment of Small-Cell Lung Cancer.

What phase is Atezolizumab in?

Atezolizumab is currently in Phase 3 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still undergoing clinical trials to evaluate its safety and efficacy for the treatment of Small-Cell Lung Cancer.

What clinical trials is Atezolizumab in?

Atezolizumab is being studied in a Phase 3 clinical trial registered as NCT05091567. This open-label, active-controlled trial is investigating maintenance treatment with lurbinectedin combined with atezolizumab versus atezolizumab alone in participants with extensive-stage Small-Cell Lung Cancer. The trial has an enrollment of 660 participants.

Is Atezolizumab the same as lurbinectedin?

No, Atezolizumab is not the same as lurbinectedin. Atezolizumab is the investigational drug being studied, while lurbinectedin is a separate drug used in combination with atezolizumab in the clinical trial. The trial compares the combination of lurbinectedin plus atezolizumab against atezolizumab alone.