NCT03319940

Brief Summary

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

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
269

participants targeted

Target at P75+ for phase_1

Timeline
20mo left

Started Dec 2017

Longer than P75 for phase_1

Geographic Reach
12 countries

37 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress84%
Dec 2017Dec 2027

First Submitted

Initial submission to the registry

October 5, 2017

Completed
19 days until next milestone

First Posted

Study publicly available on registry

October 24, 2017

Completed
2 months until next milestone

Study Start

First participant enrolled

December 26, 2017

Completed
9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

November 19, 2025

Status Verified

November 1, 2025

Enrollment Period

9 years

First QC Date

October 5, 2017

Last Update Submit

November 17, 2025

Conditions

Keywords

Half-Life Extended (HLE) Bispecific T cell engager (BiTE®)Delta-like protein 3 (DLL3)TarlatamabOncologyImmunology

Outcome Measures

Primary Outcomes (7)

  • Number of participants with dose limiting toxicities (DLT) for all indications

    6 months

  • Number of participants with treatment-emergent adverse events (AEs) for all indications

    4 years

  • Number of participants with treatment-related AEs for all indications

    4 years

  • Number of participants with clinically significant changes in vital signs for all indications

    4 years

  • Number of participants with significant changes in electrocardiogram (ECG) for all indications

    4 years

  • Number of participants with significant changes in physical examinations for all indications

    4 years

  • Number of participants with significant changes in clinical laboratory tests for all indications

    4 years

Secondary Outcomes (10)

  • Maximum observed concentration (Cmax) following intravenous administration for all indications

    4 years

  • Minimum observed concentration (Cmin) following intravenous administration for all indications

    4 years

  • Area under the concentration-time curve (AUC) over the 2 week dosing interval for all indications

    4 years

  • Accumulation following multiple dosing for all indications

    4 years

  • Half-life (t1/2) following intravenous administration for all indications

    4 years

  • +5 more secondary outcomes

Study Arms (6)

Part A

EXPERIMENTAL

Tarlatamab monotherapy

Drug: Tarlatamab

Part C

EXPERIMENTAL

Tarlatamab with Pembrolizumab

Drug: TarlatamabDrug: Pembrolizumab

Part D

EXPERIMENTAL

Tarlatamab with additional CRS mitigation strategies

Drug: TarlatamabDrug: CRS Mitigation Strategies

Part E

EXPERIMENTAL

Tarlatamab administration with 24-hour monitoring

Drug: Tarlatamab

Part F

EXPERIMENTAL

Tarlatamab administered in outpatient infusion centers with 8-hour monitoring Optional wearable digital device substudy (US sites only)

Drug: Tarlatamab

Part G

EXPERIMENTAL

Tarlatamab additional dosing schedule Optional wearable digital device substudy (US sites only)

Drug: Tarlatamab

Interventions

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

Part APart CPart DPart EPart FPart G

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 C

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

Part D

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (39)

City of Hope National Medical Center

Duarte, California, 91010, United States

Location

Yale New Haven Hospital

New Haven, Connecticut, 06510, United States

Location

Moffitt Cancer Center

Tampa, Florida, 33612, United States

Location

Winship Cancer Institute

Atlanta, Georgia, 30322, United States

Location

University of Chicago

Chicago, Illinois, 60637, United States

Location

Ochsner Clinic Foundation

New Orleans, Louisiana, 70121, United States

Location

John Hopkins Sidney Kimmel Comprehensive Cancer Center

Baltimore, Maryland, 21287, United States

Location

Henry Ford Health System

Detroit, Michigan, 48202, United States

Location

Washington University

St Louis, Missouri, 63110-1093, United States

Location

Memorial Sloan Kettering Cancer Center

New York, New York, 10021, United States

Location

University Hospitals Cleveland Medical Center

Cleveland, Ohio, 44106, United States

Location

The Ohio State University Wexner Medical Center - Thoracic Oncology Clinic

Columbus, Ohio, 43210, United States

Location

Fox Chase Cancer Center

Philadelphia, Pennsylvania, 19111, United States

Location

University of Pittsburgh Medical Center Cancer Pavillion

Pittsburgh, Pennsylvania, 15232, United States

Location

Sarah Cannon Research Institute

Nashville, Tennessee, 37203, United States

Location

Chris OBrien Lifehouse

Camperdown, New South Wales, 2050, Australia

Location

Medizinische Universitaet Graz

Graz, 8036, Austria

Location

Landeskrankenhaus Salzburg

Salzburg, 5020, Austria

Location

Gustave Roussy

Villejuif, 94805, France

Location

Universitaetsklinikum Wuerzburg

Würzburg, 97078, Germany

Location

Prince of Wales Hospital

Shatin, New Territories, Hong Kong

Location

National Cancer Center Hospital East

Kashiwa-shi, Chiba, 277-8577, Japan

Location

National Cancer Center Hospital

Chuo-ku, Tokyo, 104-0045, Japan

Location

Wakayama Medical University Hospital

Wakayama, Wakayama, 641-8510, Japan

Location

Nederlands Kanker Instituut Antoni van Leeuwenhoekziekenhuis

Amsterdam, 1066 CX, Netherlands

Location

Maastricht Universitair Medisch Centrum

Maastricht, 6229 HX, Netherlands

Location

Biokinetica SA

Józefów, 05-410, Poland

Location

Europejskie Centrum Zdrowia Otwock Szpital imienia Fryderyka Chopina

Otwock, 05-400, Poland

Location

Hospital Universitari Vall d Hebron

Barcelona, Catalonia, 08035, Spain

Location

Hospital Clinic i Provincial de Barcelona

Barcelona, Catalonia, 08036, Spain

Location

Hospital Universitario Ramon y Cajal

Madrid, 28034, Spain

Location

Hospital Universitario 12 de Octubre

Madrid, 28041, Spain

Location

Hospital Universitario La Paz

Madrid, 28046, Spain

Location

Centre Hospitalier Universitaire Vaudois

Lausanne, 1011, Switzerland

Location

Kantonsspital St Gallen

Sankt Gallen, 9007, Switzerland

Location

Kaohsiung Medical University Chung-Ho Memorial Hospital

Kaohsiung City, 80756, Taiwan

Location

Tri-Service General Hospital

Taipei, 11490, Taiwan

Location

Linkou Chang Gung Memorial Hospital of Chang Gung Medical Foundation

Taoyuan District, 33305, Taiwan

Location

Christie Hospital

Manchester, M20 4BX, United Kingdom

Location

Related Publications (4)

  • 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.

    PMID: 31215500BACKGROUND
  • 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.

    PMID: 39208379BACKGROUND
  • 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.

    PMID: 36689692BACKGROUND
  • 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.

    PMID: 40187110BACKGROUND

Related Links

MeSH Terms

Conditions

Small Cell Lung CarcinomaBites and StingsNeoplasms

Interventions

pembrolizumab

Condition Hierarchy (Ancestors)

Carcinoma, BronchogenicBronchial NeoplasmsLung NeoplasmsRespiratory Tract NeoplasmsThoracic NeoplasmsNeoplasms by SiteLung DiseasesRespiratory Tract DiseasesPoisoningChemically-Induced DisordersWounds and Injuries

Study Officials

  • MD

    Amgen

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Masking Details
The patient, investigator, investigative staff, medical monitor and care provider will not be masked for the study.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: 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.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR
Expanded Access
Yes

Study Record Dates

First Submitted

October 5, 2017

First Posted

October 24, 2017

Study Start

December 26, 2017

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2027

Last Updated

November 19, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will share

De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication have been granted marketing authorization in both the US and Europe or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.
Access Criteria
Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors. If not approved, a Data Sharing Independent Review Panel will arbitrate and make the final decision. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below.
More information

Locations