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A Study Comparing Tarlatamab, Durvalumab, Carboplatin, and Etoposide Versus Durvalumab, Carboplatin, and Etoposide in First-line Extensive Stage Small-Cell Lung Cancer (ES-SCLC)

A Phase 3, Open Label, Multicenter, Randomized Study of First Line Tarlatamab in Combination With Durvalumab, Carboplatin and Etoposide Versus Durvalumab, Carboplatin and Etoposide in Untreated Extensive Stage Small-Cell Lung Cancer (DeLLphi-312)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07005128
Acronym
DeLLphi-312
Enrollment
350
Registered
2025-06-05
Start date
2025-08-18
Completion date
2029-08-15
Last updated
2026-09-08

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

Conditions

Extensive Stage Small-cell Lung Cancer, Small-cell Lung Cancer

Brief summary

The main objective of the study is to compare the efficacy of tarlatamab in combination with durvalumab, carboplatin and etoposide to the combination of durvalumab, carboplatin and etoposide on prolonging overall survival (OS).

Interventions

DRUGTarlatamab

Tarlatamab will be administered as an intravenous (IV) infusion.

DRUGDurvalumab

Durvalumab will be administered as an IV infusion.

DRUGCarboplatin

Carboplatin will be administered as an IV infusion.

DRUGEtoposide

Etoposide will be administered as an IV infusion.

Sponsors

Amgen
Lead SponsorINDUSTRY
AstraZeneca
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Participant has provided informed consent before initiation of any study-specific activities/procedures. * Age ≥ 18 years or ≥ legal age within the country if it is older than 18 years. * Histologically or cytologically documented ES-SCLC (American Joint Committee on Cancer, 2017, Stage IV SCLC \[T any, N any, M1 a/b/c\]), or T3 to T4 due to multiple lung nodules that are too extensive or have tumor/nodal volume that is too large to be encompassed in a tolerable radiation plan. * Measurable disease as defined per RECIST 1.1. * Suitable to receive carboplatin, etoposide and durvalumab regimen as first-line treatment per investigator clinical assessment. * Minimum life expectancy ≥ 12 weeks.

Exclusion criteria

* Participants can have no history of other malignancy in the last 2 years. * Any symptomatic central nervous system (CNS) metastases, or leptomeningeal disease. * They will have no history of severe or life-threatening events to immune-mediated therapy. * History of arterial thrombosis (eg, stroke or transient ischemic attack) within 6 months prior to first dose of study treatment. * They will have no active autoimmune or inflammatory disorders. * Presence of active human immunodeficiency virus (HIV) or active Hepatitis (B/C) infection. * Evidence or interstitial lung disease (ILD) or active, non-infectious pneumonitis. * History of solid organ transplant. * They will not have had a myocardial infarction and/or symptomatic congestive heart failure (New York Heart Association \> class II) within 6 months prior to first dose of study treatment.

Design outcomes

Primary

MeasureTime frame
Overall Survival (OS)Up to approximately 3.5 years
Progression free survival (PFS) (Blinded Independent Central Review [BICR] Assessed)Up to approximately 3.5 years

Secondary

MeasureTime frame
PFS (Investigator Assessed)Up to approximately 4 years
Objective Response (OR)Up to approximately 4 years
Disease ControlUp to approximately 4 years
Duration of Response (DOR)Up to approximately 4 years
PFS Rate6 months, 1 year, and 2 years
OS Rate6 months, 1 year, 2 years and 3 years
Time to ProgressionUp to approximately 4 years
Number of Participants Who Experience Treatment-emergent Adverse Events (TEAEs)Up to approximately 4 years
Number of Participants Who Experience Treatment-related Adverse EventsUp to approximately 4 years
Number of Participants Who Experience Events of InterestUp to approximately 4 years
Serum Concentrations of TarlatamabUp to approximately 1 year
Number of Participant Who Develop Anti-Tarlatamab AntibodiesUp to 13 months

Countries

Argentina, Australia, Austria, Belgium, Brazil, China, Denmark, France, Germany, Greece, Hong Kong, Hungary, Israel, Italy, Japan, Mexico, Netherlands, Poland, Portugal, Romania, South Korea, Spain, Switzerland, Taiwan, Turkey (Türkiye), United States

Contacts

STUDY_DIRECTORMD

Amgen

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 9, 2026