Study Evaluating Safety, Tolerability and Pharmacokinetics (PK) of Tarlatamab in Adults With Small Cell Lung Cancer (SCLC)

NCT ID: NCT03319940

Last Updated: 2025-11-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

269 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-12-26

Study Completion Date

2027-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

A study to assess the safety, tolerability, and PK of tarlatamab in participants with SCLC

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This is an open-label, ascending, multiple doses, phase 1 study evaluating tarlatamab monotherapy, in combination with anti-PD1 therapy and with additional cytokine release syndrome (CRS) mitigation strategies. Tarlatamab will be administered as a short term intravenous (IV) infusion in participants with SCLC. Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Small Cell Lung Carcinoma

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

This is an open-label, ascending, multiple doses, phase 1 study evaluating tarlatamab monotherapy, in combination with anti-PD1 therapy and with additional CRS mitigation strategies in participants with SCLC. The dose exploration phases of the study will estimate the maximum tolerated dose (MTD) or Recommended Phase 2 Dose (RP2D) of tarlatamab either as monotherapy or in combination with pembrolizumab. This will be followed by dose expansion phase to confirm RP2D and to obtain further safety and efficacy data.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

The patient, investigator, investigative staff, medical monitor and care provider will not be masked for the study.

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Part A

Tarlatamab monotherapy

Group Type EXPERIMENTAL

Tarlatamab

Intervention Type DRUG

Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

Part C

Tarlatamab with Pembrolizumab

Group Type EXPERIMENTAL

Tarlatamab

Intervention Type DRUG

Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

Pembrolizumab

Intervention Type DRUG

Pembrolizumab is a potent humanized IgG4 monoclonal antibody (mAb) with high specificity of binding to the PD-1 receptor, thus inhibiting its interaction with PD-L1 and PD-L2

Part D

Tarlatamab with additional CRS mitigation strategies

Group Type EXPERIMENTAL

Tarlatamab

Intervention Type DRUG

Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

CRS Mitigation Strategies

Intervention Type DRUG

Participants will be treated with one of the CRS mitigation strategies.

Part E

Tarlatamab administration with 24-hour monitoring

Group Type EXPERIMENTAL

Tarlatamab

Intervention Type DRUG

Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

Part F

Tarlatamab administered in outpatient infusion centers with 8-hour monitoring

Optional wearable digital device substudy (US sites only)

Group Type EXPERIMENTAL

Tarlatamab

Intervention Type DRUG

Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

Part G

Tarlatamab additional dosing schedule

Optional wearable digital device substudy (US sites only)

Group Type EXPERIMENTAL

Tarlatamab

Intervention Type DRUG

Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Tarlatamab

Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)

Intervention Type DRUG

Pembrolizumab

Pembrolizumab is a potent humanized IgG4 monoclonal antibody (mAb) with high specificity of binding to the PD-1 receptor, thus inhibiting its interaction with PD-L1 and PD-L2

Intervention Type DRUG

CRS Mitigation Strategies

Participants will be treated with one of the CRS mitigation strategies.

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Participant has provided informed consent prior to initiation of any study-specific activities/procedures
* Age greater than or equal to 18 years old at the time of signing the informed consent
* Histologically or cytologically confirmed SCLC. For parts A, C, D, E, F, and G: relapsed/refractory small cell lung cancer (R/R SCLC) who progressed or recurred following platinum-based regimen
* Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
* Participants with treated brain metastases are eligible provided they meet defined criteria
* Adequate organ function as defined in protocol

Exclusion Criteria

* History of other malignancy within the past 2 years prior to first dose of tarlatamab with exceptions
* Major surgery within 28 days of first dose tarlatamab
* Untreated (includes new lesions or progression in previously treated lesions) or symptomatic brain metastases and leptomeningeal disease (regardless of symptomatic or not).
* Prior anti-cancer therapy: at least 28 days must have elapsed between any prior anti-cancer therapy and first dose of tarlatamab with the following exceptions: participants who received conventional chemotherapy are eligible if at least 14 days have elapsed and if all treatment-related toxicity has been resolved to Grade less than or equal to 1; and prior palliative radiotherapy must have been completed at least 7 days before the first dose of tarlatamab
* Participants who experienced severe, life-threatening or recurrent (Grade 2 or higher) immune-mediated AEs or infusion-related reactions including those that lead to permanent discontinuation while on treatment with immune-oncology agents
* Has evidence of interstitial lung disease or active, non-infectious pneumonitis
* Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of tarlatamab
* Part C only: history of solid organ transplantation or active autoimmune disease that has required systemic treatment within the past 2 years
* Participant with symptoms and/or clinical signs and/or radiographic signs that indicate an acute and/or uncontrolled active systemic infection within 7 days prior to the first dose of investigational product administration
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Amgen

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

MD

Role: STUDY_DIRECTOR

Amgen

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

City of Hope National Medical Center

Duarte, California, United States

Site Status

Yale New Haven Hospital

New Haven, Connecticut, United States

Site Status

Moffitt Cancer Center

Tampa, Florida, United States

Site Status

Winship Cancer Institute

Atlanta, Georgia, United States

Site Status

University of Chicago

Chicago, Illinois, United States

Site Status

Ochsner Clinic Foundation

New Orleans, Louisiana, United States

Site Status

John Hopkins Sidney Kimmel Comprehensive Cancer Center

Baltimore, Maryland, United States

Site Status

Henry Ford Health System

Detroit, Michigan, United States

Site Status

Washington University

St Louis, Missouri, United States

Site Status

Memorial Sloan Kettering Cancer Center

New York, New York, United States

Site Status

University Hospitals Cleveland Medical Center

Cleveland, Ohio, United States

Site Status

The Ohio State University Wexner Medical Center - Thoracic Oncology Clinic

Columbus, Ohio, United States

Site Status

Fox Chase Cancer Center

Philadelphia, Pennsylvania, United States

Site Status

University of Pittsburgh Medical Center Cancer Pavillion

Pittsburgh, Pennsylvania, United States

Site Status

Sarah Cannon Research Institute

Nashville, Tennessee, United States

Site Status

Chris OBrien Lifehouse

Camperdown, New South Wales, Australia

Site Status

Medizinische Universitaet Graz

Graz, , Austria

Site Status

Landeskrankenhaus Salzburg

Salzburg, , Austria

Site Status

Gustave Roussy

Villejuif, , France

Site Status

Universitaetsklinikum Wuerzburg

Würzburg, , Germany

Site Status

Prince of Wales Hospital

Shatin, New Territories, , Hong Kong

Site Status

National Cancer Center Hospital East

Kashiwa-shi, Chiba, Japan

Site Status

National Cancer Center Hospital

Chuo-ku, Tokyo, Japan

Site Status

Wakayama Medical University Hospital

Wakayama, Wakayama, Japan

Site Status

Nederlands Kanker Instituut Antoni van Leeuwenhoekziekenhuis

Amsterdam, , Netherlands

Site Status

Maastricht Universitair Medisch Centrum

Maastricht, , Netherlands

Site Status

Biokinetica SA

Józefów, , Poland

Site Status

Europejskie Centrum Zdrowia Otwock Szpital imienia Fryderyka Chopina

Otwock, , Poland

Site Status

Hospital Universitari Vall d Hebron

Barcelona, Catalonia, Spain

Site Status

Hospital Clinic i Provincial de Barcelona

Barcelona, Catalonia, Spain

Site Status

Hospital Universitario Ramon y Cajal

Madrid, , Spain

Site Status

Hospital Universitario 12 de Octubre

Madrid, , Spain

Site Status

Hospital Universitario La Paz

Madrid, , Spain

Site Status

Centre Hospitalier Universitaire Vaudois

Lausanne, , Switzerland

Site Status

Kantonsspital St Gallen

Sankt Gallen, , Switzerland

Site Status

Kaohsiung Medical University Chung-Ho Memorial Hospital

Kaohsiung City, , Taiwan

Site Status

Tri-Service General Hospital

Taipei, , Taiwan

Site Status

Linkou Chang Gung Memorial Hospital of Chang Gung Medical Foundation

Taoyuan District, , Taiwan

Site Status

Christie Hospital

Manchester, , United Kingdom

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States Australia Austria France Germany Hong Kong Japan Netherlands Poland Spain Switzerland Taiwan United Kingdom

References

Explore related publications, articles, or registry entries linked to this study.

Owen DH, Giffin MJ, Bailis JM, Smit MD, Carbone DP, He K. DLL3: an emerging target in small cell lung cancer. J Hematol Oncol. 2019 Jun 18;12(1):61. doi: 10.1186/s13045-019-0745-2.

Reference Type BACKGROUND
PMID: 31215500 (View on PubMed)

Dowlati A, Hummel HD, Champiat S, Olmedo ME, Boyer M, He K, Steeghs N, Izumi H, Johnson ML, Yoshida T, Bouchaab H, Borghaei H, Felip E, Jost PJ, Gadgeel S, Chen X, Yu Y, Martinez P, Parkes A, Paz-Ares L. Sustained Clinical Benefit and Intracranial Activity of Tarlatamab in Previously Treated Small Cell Lung Cancer: DeLLphi-300 Trial Update. J Clin Oncol. 2024 Oct 10;42(29):3392-3399. doi: 10.1200/JCO.24.00553. Epub 2024 Aug 29.

Reference Type BACKGROUND
PMID: 39208379 (View on PubMed)

Paz-Ares L, Champiat S, Lai WV, Izumi H, Govindan R, Boyer M, Hummel HD, Borghaei H, Johnson ML, Steeghs N, Blackhall F, Dowlati A, Reguart N, Yoshida T, He K, Gadgeel SM, Felip E, Zhang Y, Pati A, Minocha M, Mukherjee S, Goldrick A, Nagorsen D, Hashemi Sadraei N, Owonikoko TK. Tarlatamab, a First-in-Class DLL3-Targeted Bispecific T-Cell Engager, in Recurrent Small-Cell Lung Cancer: An Open-Label, Phase I Study. J Clin Oncol. 2023 Jun 1;41(16):2893-2903. doi: 10.1200/JCO.22.02823. Epub 2023 Jan 23.

Reference Type BACKGROUND
PMID: 36689692 (View on PubMed)

Chiang AC, Olmedo Garcia ME, Carlisle JW, Dowlati A, Reguart N, Felip E, Jost PJ, Steeghs N, Stec R, Gadgeel SM, Loong HH, Jiang W, Hamidi A, Parkes A, Paz-Ares L. Safety of tarlatamab with 6-8-h outpatient versus 48-h inpatient monitoring during cycle 1: DeLLphi-300 phase 1 substudy. ESMO Open. 2025 Apr;10(4):104538. doi: 10.1016/j.esmoop.2025.104538. Epub 2025 Apr 4.

Reference Type BACKGROUND
PMID: 40187110 (View on PubMed)

Related Links

Access external resources that provide additional context or updates about the study.

http://www.amgentrials.com

AmgenTrials clinical trials website

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

20160323

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Talazoparib and Thoracic RT for ES-SCLC
NCT04170946 RECRUITING PHASE1