Study Evaluating Safety, Tolerability and Pharmacokinetics (PK) of Tarlatamab in Adults With Small Cell Lung Cancer (SCLC)
A Phase 1 Study Evaluating the Safety, Tolerability and Pharmacokinetics of Tarlatamab in Subjects With Small Cell Lung Cancer (DeLLphi-300)
1 other identifier
interventional
269
12 countries
37
Brief Summary
A study to assess the safety, tolerability, and PK of tarlatamab in participants with SCLC
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Dec 2017
Longer than P75 for phase_1
37 active sites
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
First Submitted
Initial submission to the registry
October 5, 2017
CompletedFirst Posted
Study publicly available on registry
October 24, 2017
CompletedStudy Start
First participant enrolled
December 26, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2027
November 19, 2025
November 1, 2025
9 years
October 5, 2017
November 17, 2025
Conditions
Keywords
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
EXPERIMENTALTarlatamab monotherapy
Part C
EXPERIMENTALTarlatamab with Pembrolizumab
Part D
EXPERIMENTALTarlatamab with additional CRS mitigation strategies
Part E
EXPERIMENTALTarlatamab administration with 24-hour monitoring
Part F
EXPERIMENTALTarlatamab administered in outpatient infusion centers with 8-hour monitoring Optional wearable digital device substudy (US sites only)
Part G
EXPERIMENTALTarlatamab additional dosing schedule Optional wearable digital device substudy (US sites only)
Interventions
Tarlatamab is a Half-Life Extended (HLE) Bispecific T cell engager (BiTE®) targeting delta-like protein 3 (DLL3)
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
Participants will be treated with one of the CRS mitigation strategies.
Eligibility Criteria
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
- Amgenlead
Study Sites (39)
City of Hope National Medical Center
Duarte, California, 91010, United States
Yale New Haven Hospital
New Haven, Connecticut, 06510, United States
Moffitt Cancer Center
Tampa, Florida, 33612, United States
Winship Cancer Institute
Atlanta, Georgia, 30322, United States
University of Chicago
Chicago, Illinois, 60637, United States
Ochsner Clinic Foundation
New Orleans, Louisiana, 70121, United States
John Hopkins Sidney Kimmel Comprehensive Cancer Center
Baltimore, Maryland, 21287, United States
Henry Ford Health System
Detroit, Michigan, 48202, United States
Washington University
St Louis, Missouri, 63110-1093, United States
Memorial Sloan Kettering Cancer Center
New York, New York, 10021, United States
University Hospitals Cleveland Medical Center
Cleveland, Ohio, 44106, United States
The Ohio State University Wexner Medical Center - Thoracic Oncology Clinic
Columbus, Ohio, 43210, United States
Fox Chase Cancer Center
Philadelphia, Pennsylvania, 19111, United States
University of Pittsburgh Medical Center Cancer Pavillion
Pittsburgh, Pennsylvania, 15232, United States
Sarah Cannon Research Institute
Nashville, Tennessee, 37203, United States
Chris OBrien Lifehouse
Camperdown, New South Wales, 2050, Australia
Medizinische Universitaet Graz
Graz, 8036, Austria
Landeskrankenhaus Salzburg
Salzburg, 5020, Austria
Gustave Roussy
Villejuif, 94805, France
Universitaetsklinikum Wuerzburg
Würzburg, 97078, Germany
Prince of Wales Hospital
Shatin, New Territories, Hong Kong
National Cancer Center Hospital East
Kashiwa-shi, Chiba, 277-8577, Japan
National Cancer Center Hospital
Chuo-ku, Tokyo, 104-0045, Japan
Wakayama Medical University Hospital
Wakayama, Wakayama, 641-8510, Japan
Nederlands Kanker Instituut Antoni van Leeuwenhoekziekenhuis
Amsterdam, 1066 CX, Netherlands
Maastricht Universitair Medisch Centrum
Maastricht, 6229 HX, Netherlands
Biokinetica SA
Józefów, 05-410, Poland
Europejskie Centrum Zdrowia Otwock Szpital imienia Fryderyka Chopina
Otwock, 05-400, Poland
Hospital Universitari Vall d Hebron
Barcelona, Catalonia, 08035, Spain
Hospital Clinic i Provincial de Barcelona
Barcelona, Catalonia, 08036, Spain
Hospital Universitario Ramon y Cajal
Madrid, 28034, Spain
Hospital Universitario 12 de Octubre
Madrid, 28041, Spain
Hospital Universitario La Paz
Madrid, 28046, Spain
Centre Hospitalier Universitaire Vaudois
Lausanne, 1011, Switzerland
Kantonsspital St Gallen
Sankt Gallen, 9007, Switzerland
Kaohsiung Medical University Chung-Ho Memorial Hospital
Kaohsiung City, 80756, Taiwan
Tri-Service General Hospital
Taipei, 11490, Taiwan
Linkou Chang Gung Memorial Hospital of Chang Gung Medical Foundation
Taoyuan District, 33305, Taiwan
Christie Hospital
Manchester, M20 4BX, United Kingdom
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: 31215500BACKGROUNDDowlati 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: 39208379BACKGROUNDPaz-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: 36689692BACKGROUNDChiang 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
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
MD
Amgen
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
- 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
- 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.
De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.