Extensive-Stage Small-Cell Lung CancerPhase 3DeLLphi-305NCT06211036
Study Comparing Tarlatamab and Durvalumab Versus Durvalumab Alone in First-Line Extensive-Stage Small-Cell Lung Cancer (ES-SCLC) Following Platinum, Etoposide and Durvalumab
A Phase 3 study testing Tarlatamab and Durvalumab in people with Extensive-Stage Small-Cell Lung Cancer and Small-Cell Lung Cancer, run by Amgen at 219 sites in 29 countries.
Trial summary
The primary objective of this study is to compare the efficacy of tarlatamab plus durvalumab with durvalumab alone on prolonging overall survival (OS). Read more about this study
- Who is it for?
- Ages 18 to 99 years
- Conditions the study is for
- Extensive-Stage Small-Cell Lung Cancer, Small-Cell Lung Cancer
- What is being tested?
- Tarlatamab and Durvalumab
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 563 participants
- Where
- 219 sitesin 29 countries
- Study dates
- 5 Jun 2024to 2 Apr 2030
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 99 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Participant has provided informed consent prior to initiation of any study specific activities/procedures.
- Age >= 18 years (or >= legal adult age within the country if it is older than 18 years).
- Completed 3-4 cycles of platinum-etoposide chemotherapy with concurrent durvalumab as first-line treatment of extensive-stage (ES)-SCLC prior to enrollment, without disease progression (ongoing response or stable disease) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1).
- Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 to 1.
- Minimum life expectancy > 12 weeks.
- Toxicities attributed to prior anti-cancer therapy resolved to grade ≤ 1, unless otherwise specified, excluding alopecia or fatigue.
- Adequate organ function.
- Histologically or cytologically documented extensive-stage disease (American Joint Committee on Cancer, 2017, IV small-cell lung cancer (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. Participants with prior limited-stage (LS)-SCLC are allowed if the interval is > 6 months since the end of previous therapy and progression, in discussion with the medical monitor.
Who cannot join
- Symptomatic central nervous system (CNS) metastases, or leptomeningeal disease. Participants with treated brain metastases are eligible as per protocol.
- Prior history of severe or life-threatening events from any immune-mediated therapy.
- History of other malignancy within the past 2 years, with some exceptions as per protocol.
- Active or prior documented autoimmune or inflammatory disorders as per protocol.
- Myocardial infarction and/or symptomatic congestive heart failure (New York Heart Association > class II) within 6 months of first dose of study treatment.
- History of arterial thrombosis (e.g., stroke or transient ischemic attack) within 6 months of first dose of study treatment.
Show all 30Show fewer
- Evidence of interstitial lung disease (ILD) or active, non-infectious pneumonitis.
- History of solid organ transplant.
- Major surgical procedures within 28 days of first dose of study treatment.
- Known human immunodeficiency virus (HIV) infection (participants with HIV infection on antiviral therapy and undetectable viral load are permitted with a requirement for regular monitoring for reactivation for the duration of treatment on study), hepatitis C infection (participants with hepatitis C that achieve a sustained virologic response after antiviral therapy are allowed), or hepatitis B infection (participants with hepatitis B surface antigen [HBsAg] or core antibody that achieve sustained virologic response with antiviral therapy are permitted with a requirement for regular monitoring for reactivation for the duration of treatment on the study).
- Receiving systemic corticosteroid therapy or any other form of immunosuppressive therapy within 14 days prior to first dose of study treatment.
- History of allergic reactions or acute hypersensitivity reaction to antibody therapies, platinum chemotherapy, or etoposide.
- 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 study treatment.
- Participant has known active infection requiring parenteral antibiotic treatment. Upon completion of parenteral antibiotics and resolution of symptoms, the participant may be considered eligible for the study from an infection standpoint.
- Treatment with live virus, including live-attenuated vaccination, within 4 weeks prior to the first dose of study treatment. Inactive vaccines (e.g., non-live or non-replicating agent) and live viral non-replicating vaccines (e.g., Jynneos for Monkeypox infection) within 30 days prior to first dose of study treatment.
- Prior therapy with any selective inhibitor of the delta-like ligand 3 (DLL3) pathway.
- Receiving another anti-cancer therapy. Adjuvant hormonal therapy for resected breast cancer is permitted.
- Treatment in an alternative investigational trial within 28 days prior to enrollment.
- Has received or is planning to receive consolidative chest radiation for extensive stage disease.
- Female participants of childbearing potential unwilling to use protocol specified method of contraception during treatment as per protocol.
- Female participants who are breastfeeding or who plan to breastfeed while on study as per protocol.
- Female participants planning to become pregnant or donate eggs while on study as per protocol.
- Female participants of childbearing potential with a positive pregnancy test assessed at screening by a highly sensitive serum pregnancy test.
- Male participants with a female partner of childbearing potential who are unwilling to practice sexual abstinence (refrain from heterosexual intercourse) or use contraception during treatment as per protocol.
- Male participants with a pregnant partner who are unwilling to practice abstinence or use a condom during treatment as per protocol.
- Male participants unwilling to abstain from donating sperm during treatment as per protocol.
- Participant has known sensitivity to any of the products or components to be administered during dosing.
- Participant has known sensitivity to any of the products or components to be administered during dosing.
- History or evidence of any other clinically significant disorder, condition or disease that, in the opinion of the investigator or physician if consulted, would pose a risk to participant safety or interfere with the study evaluation, procedures, or completion.
- Participant likely to not be available to complete all protocol-required study visits or procedures, and/or to comply with all required study procedures (eg, Clinical Outcome Assessments) to the best of the participant and investigator's knowledge. Participants who are unable to complete clinical outcome assessments are eligible.
Trial locations and contacts
219 sites in 29 countries.
219 sites in 29 countries
United States37 sites
University Cancer and Blood Center LLC
Athens, Georgia, 30607
Emory University
Atlanta, Georgia, 30322
Our Lady of the Lake Cancer Institute
Baton Rouge, Louisiana, 70808
Dana-Farber Cancer Institute
Boston, Massachusetts, 02215
Medical University of South Carolina
Charleston, South Carolina, 29425
University of Illinois Chicago
Chicago, Illinois, 60612
Oncology Hematology Care Incorporated
Cincinnati, Ohio, 45242
University Hospitals Cleveland Medical Center
Cleveland, Ohio, 44106
The Ohio State University
Columbus, Ohio, 43210
Texas Oncology - Dallas Fort Worth
Dallas, Texas, 75246
US Oncology Research Investigational Products Center
Dallas, Texas, 75246
Duke University
Durham, North Carolina, 27710
Astera Cancer Care
East Brunswick, New Jersey, 08816
Oncology Associates of Oregon, PC
Eugene, Oregon, 97401
Northeast Georgia Medical Center
Gainesville, Georgia, 30501
Cancer and Hematology Centers of Western Michigan
Grand Rapids, Michigan, 49503
University of Texas MD Anderson Cancer Center
Houston, Texas, 77030
Franciscan Health Indianapolis
Indianapolis, Indiana, 46237
University of Southern California
Los Angeles, California, 90033
Baptist Cancer Center Memphis Thoracic
Memphis, Tennessee, 38120
The Medical College of Wisconsin
Milwaukee, Wisconsin, 53226
Infirmary Cancer Center
Mobile, Alabama, 36607
Sarah Cannon Research Institute
Nashville, Tennessee, 37203
Rutgers Cancer Institute of New Jersey
New Brunswick, New Jersey, 08901
Yale New Haven Hospital
New Haven, Connecticut, 06510
Virginia Oncology Associates
Newport News, Virginia, 23606
Nebraska Cancer Specialists
Omaha, Nebraska, 68130
Allegheny Health Network
Pittsburgh, Pennsylvania, 15212
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, 15232
Oregon Health and Science University
Portland, Oregon, 97239
Virginia Commonwealth University Massey Cancer Center
Richmond, Virginia, 23298
Mayo Clinic
Rochester, Minnesota, 55905
Allina Health System dba Allina Health Cancer Institute
Saint Paul, Minnesota, 55102
Swedish Cancer Institute
Seattle, Washington, 98104
Oncology Hematology Associates
Springfield, Missouri, 65807
Montefiore Medical Center - Bronx
The Bronx, New York, 10461
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157
China31 sites
Beijing Chaoyang Hospital, Capital Medical University
Beijing, Beijing Municipality, 100020
Beijing Cancer Hospital
Beijing, Beijing Municipality, 100142
Beijing Cancer Hospital
Beijing, 100142
Cangzhou Peoples Hospital
Cangzhou, Hebei, 061011
Jilin Cancer Hospital
Changchun, Jilin, 130012
West China Hospital of Sichuan University
Chengdu, Sichuan, 611135
Xinqiao Hospital
Chongqing, Chongqing Municipality, 400037
Fujian Cancer Hospital
Fuzhou, Fujian, 350014
Sun Yat-sen University Cancer Center
Guangzhou, Guangdong, 510060
Affiliated Hospital of Guilin Medical University
Guilin, Guangxi, 541001
the First Affiliated Hospital Zhejiang University School of Medicine
Hangzhou, Zhejiang, 310003
The Affiliated Hospital of Inner Mongolia Medical University
Hohhot, Inner Mongolia, 010010
Jiamusi Cancer Hospital
Jiamusi, Heilongjiang, 154007
The Affiliated Cancer Hospital of Shandong First Medical University
Jinan, Shandong, 250117
Linyi Cancer Hospital
Linyi, Shandong, 276000
Jiangxi Cancer hospital
Nanchang, Jiangxi, 330029
Nanjing Chest Hospital
Nanjing, Jiangsu, 210029
Guangxi Medical University Affiliated Tumor Hospital
Nanning, Guangxi, 530201
The First Affiliated Hospital Of Ningbo University
Ningbo, Zhejiang, 315010
The Second Attached Hospital Of Fujian Medical University
Quanzhou, Fujian, 362002
Shanghai Chest Hospital
Shanghai, Shanghai Municipality, 200030
Shanghai Pulmonary Hospital
Shanghai, Shanghai Municipality, 200433
Shanxi Provincial Cancer Hospital
Taiyuan, Shanxi, 030009
Tianjin Peoples Hospital
Tianjin, Tianjin Municipality, 300121
Affiliated Cancer Hospital of Xinjiang Medical University
Ürümqi, Xinjiang, 830054
The First Affiliated Hospital of Wenzhou Medical University
Wenzhou, Zhejiang, 325015
Hubei Cancer Hospital
Wuhan, Hubei, 430070
The First Affiliated Hospital of Xian Jiaotong University
Xi’an, Shanxi, 710065
Xuzhou Central Hospital
Xuzhou, Jiangsu, 221009
Henan Cancer Hospital
Zhengzhou, Henan, 450003
The First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan, 450066
Japan19 sites
Hyogo Cancer Center
Akashi-shi, Hyōgo, 673-8558
Juntendo University Hospital
Bunkyo-ku, Tokyo, 113-8431
National Cancer Center Hospital
Chuo-ku, Tokyo, 104-0045
Kyushu University Hospital
Fukuoka, Fukuoka, 812-8582
Saitama Medical University International Medical Center
Hidaka-shi, Saitama, 350-1298
Kansai Medical University Hospital
Hirakata-shi, Osaka, 573-1191
National Cancer Center Hospital East
Kashiwa-shi, Chiba, 277-8577
The Cancer Institute Hospital of Japanese Foundation for Cancer Research
Koto-ku, Tokyo, 135-8550
Kurume University Hospital
Kurume-shi, Fukuoka, 830-0011
National Hospital Organization Shikoku Cancer Center
Matsuyama, Ehime, 791-0280
Aichi Cancer Center
Nagoya, Aichi-ken, 464-8681
Niigata Cancer Center Hospital
Niigata, Niigata, 951-8566
Okayama University Hospital
Okayama, Okayama-ken, 700-8558
Osaka International Cancer Institute
Osaka, Osaka, 541-8567
Kindai University Hospital
Osakasayama-shi, Osaka, 589-8511
National Hospital Organization Hokkaido Cancer Center
Sapporo, Hokkaido, 003-0804
Shizuoka Cancer Center
Sunto-gun, Shizuoka, 411-8777
Wakayama Medical University Hospital
Wakayama, Wakayama, 641-8510
Kanagawa Prefectural Hospital Organization Kanagawa Cancer Center
Yokohama, Kanagawa, 241-8515
France12 sites
Institut Bergonie
Bordeaux, 33000
Centre Hospitalier Regional Universitaire de Brest - Hopital Morvan
Brest, 29200
Centre Hospitalier Intercommunal de Creteil
Créteil, 94010
Centre Hospitalier - Le Mans
Le Mans, 72000
Centre Leon Berard
Lyon, 69008
Centre Hospitalier Universitaire Nord
Marseille, 13915
Institut regional du Cancer Montpellier
Montpellier, 34298
Hopital Cochin
Paris, 75014
Centre Hospitalier Universitaire de Nantes - Hopital Nord Laennec
Saint-Herblain, 44800
Centre Hospitalier Universitaire de Strasbourg - Nouvel Hopital Civil
Strasbourg, 67091
Centre Hospitalier Universitaire de Toulouse - Hopital Larrey
Toulouse, 31059
Clinique Teissier
Valenciennes, 59300
Brazil10 sites
Cenantron Centro Avançado de Tratamento Oncologico Ltda
Belo Horizonte, Minas Gerais, 30130-090
Hospital Uopeccan
Cascavel, Paraná, 85806-300
Hospital de Clinicas de Ijui
Ijuí, Rio Grande do Sul, 98700-000
Hospital de Clinicas de Passo Fundo
Passo Fundo, Rio Grande do Sul, 99010-260
Santa Casa de Misericordia de Passos
Passos, Minas Gerais, 37904-020
Irmandade da Santa Casa de Misericordia de Porto Alegre
Porto Alegre, Rio Grande do Sul, 90020-090
Oncoclinicas Rio de Janeiro S A
Rio de Janeiro, 22250-905
Hospital Sao Rafael-Idor
Salvador, Estado de Bahia, 40170-110
Fundacao Antonio Prudente AC Camargo Cancer Center
São Paulo, São Paulo, 01509-900
Hospital Israelita Albert Einstein
São Paulo, São Paulo, 05652-900
Belgium9 sites
Azorg Campus Aalst - Moorselbaan
Aalst, 9300
Universitair Ziekenhuis Brussel
Brussels, 1090
Universite Catholique de Louvain Cliniques Universitaires Saint Luc
Brussels, 1200
Institut Jules Bordet
Brussels, B-1070
Universitair Ziekenhuis Antwerpen
Edegem, 2650
Ziekenhuis Oost-Limburg
Genk, 3600
Algemeen Ziekenhuis Maria Middelares
Ghent, 9000
Centres Hospitaliers Universitaires - Helora - Hopital de Mons - Site Kennedy
Mons, 7000
Centre Hospitalier Universitaire-Universite Catholique de Louvain Namur-Site Godinne
Yvoir, 5530
Spain9 sites
Hospital Universitari Vall d Hebron
Barcelona, Catalonia, 08035
Hospital Clinic i Provincial de Barcelona
Barcelona, Catalonia, 08036
Hospital de la Santa Creu i Sant Pau
Barcelona, Catalonia, 08041
Institut Catala d Oncologia Hospitalet Hospital Duran i Reynals
L'Hospitalet de Llobregat, Catalonia, 08908
Hospital Universitario Ramon y Cajal
Madrid, 28034
Hospital Regional Universitario de Malaga
Málaga, Andalusia, 29011
Clinica Universidad de Navarra
Pamplona, Navarre, 31008
Hospital Universitario Virgen Macarena
Seville, Andalusia, 41009
Hospital Universitari i Politecnic La Fe
Valencia, Valencia, 46026
Germany8 sites
Kliniken der Stadt Koeln gGmbH
Cologne, 51109
Universitaetsklinikum Dresden
Dresden, 01307
Universitaetsklinikum Essen
Essen, 45147
Asklepios Fachkliniken Muenchen Gauting
Gauting, 82130
LungenClinic Grosshansdorf GmbH
Großhansdorf, 22927
Universitaetsklinikum Heidelberg
Heidelberg, 69126
University Hospital Muenster
Münster, 48149
Universitaetsklinikum Wuerzburg
Würzburg, 97078
Greece7 sites
Henry Dunant Hospital Center
Athens, 11526
Sotiria General Hospital
Athens, 11527
Attikon University Hospital
Athens, 12462
Metropolitan General
Athens, 15562
Metropolitan Hospital
Athens, 18547
Saint Lukes Hospital SA
Thessaloniki, 55236
European Interbalkan Medical Center
Thessaloniki, 57001
South Korea7 sites
Chungbuk National University Hospital
Cheongju Chungbuk, 28644
National Cancer Center
Goyang-si Gyeonggi-do, 10408
Seoul National University Bundang Hospital
Seongnam-si, Gyeonggi-do, 13620
Seoul National University Hospital
Seoul, 03080
Severance Hospital Yonsei University Health System
Seoul, 03722
Asan Medical Center
Seoul, 05505
Samsung Medical Center
Seoul, 06351
Australia6 sites
Cancer Research South Australia
Adelaide, South Australia, 5000
Chris OBrien Lifehouse
Camperdown, New South Wales, 2050
Monash Medical Centre
Clayton, Victoria, 3168
Greenslopes Private Hospital
Greenslopes, Queensland, 4120
Sir Charles Gairdner Hospital
Nedlands, Western Australia, 6009
Wollongong Hospital
Wollongong, New South Wales, 2500
Hungary6 sites
Semmelweis Egyetem
Budapest, 1083
Orszagos Koranyi Pulmonologiai Intezet
Budapest, 1121
Matrai Gyogyintezet
Gyöngyös, 3200
Gyor-Moson-Sopron Varmegyei Petz Aladar Egyetemi Oktatokorhaz
Győr, 9024
Fejer Varmegyei Szent Gyorgy Egyetemi Oktato Korhaz
Székesfehérvár, 8000
Reformatus Pulmonologiai Centrum
Törökbálint, 2045
Turkey (Türkiye)6 sites
Ankara Bilkent Sehir Hastanesi
Ankara, 06800
Bagcilar Medipol Mega Universite Hastanesi
Istanbul, 34214
Izmir Katip Celebi Universitesi Ataturk Egitim ve Arastirma Hastanesi
Izmir, 35150
Medical Park Seyhan Hastanesi
Mersin, 33200
VM Medical Park Mersin Hastanesi
Mersin, 33200
Sakarya Egitim ve Arastirma Hastanesi
Sakarya, 54290
Argentina5 sites
Hospital Britanico de Buenos Aires
CABA, Buenos Aires, C1280AEB
Instituto Alexander Fleming
Capital Federal, Buenos Aires, C1426ANZ
Fundacion Medica de Rio Negro y Neuquen
Cipolletti, Río Negro Province, 8324
Fundacion Centro Oncológico Riojano Integral para la Investigación y Prevención del Cáncer
La Rioja, F5300COE
Exelsus Oncologia Clinica
San Miguel de Tucumán, Tucumán Province, 4000
Czechia5 sites
Fakultni nemocnice Brno
Brno, 625 00
Fakultni nemocnice Olomouc
Olomouc, 779 00
Nemocnice Agel Ostrava-Vitkovice as
Ostrava-Vitkovice, 703 00
Vseobecna fakultni nemocnice v Praze
Prague, 128 08
Fakultni nemocnice v Motole
Prague, 150 06
Israel4 sites
Rambam Medical Center
Haifa, 3109601
Shaare Zedek Medical Center
Jerusalem, 9103102
Meir Medical Center
Kfar Saba, 4428164
Rabin Medical Center
Petah Tikva, 4941492
Italy4 sites
IRCCS Istituto Tumori Giovanni Paolo II
Bari, 70124
IRCCS Istituto Oncologico Europeo
Milan, 20141
Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda
Milan, 20162
Centro Ricerche Cliniche Di Verona Societa responsabilita limitata
Verona, 37126
Poland4 sites
Uniwersyteckie Centrum Kliniczne
Gdansk, 80-214
Wielkopolskie Centrum Pulmonologii i Torakochirurgii imienia Eugenii i Janusza Zeylandow
Poznan, 60-569
Instytut Gruzlicy i Chorob Pluc
Warsaw, 01-138
Dolnoslaskie Centrum Onkologii, Pulmonologii i Hematologii
Wroclaw, 53-439
Portugal4 sites
Hospital da Luz, SA
Lisbon, 1500-650
Hospital Cuf Descobertas
Lisbon, 1998-018
Unidade Local de Saude de Matosinhos, EPE - Hospital Pedro Hispano
Matosinhos Municipality, 4464-513
Hospital Cuf porto
Porto, 4100-180
Switzerland4 sites
Universitaetsspital Basel
Basel, 4052
Inselspital Bern
Bern, 3010
Ospedale Regionale di Bellinzona e Vali
Mendrisio, 6850
Kantonsspital Sankt Gallen
Sankt Gallen, 9007
Taiwan4 sites
Kaohsiung Chang Gung Memorial Hospital
Kaohsiung City, 83301
National Cheng Kung University Hospital
Tainan, 70403
National Taiwan University Hospital
Taipei, 10002
Taipei Veterans General Hospital
Taipei, 11217
Austria3 sites
Medizinische Universitaet Graz
Graz, 8036
Universitaetsklinikum Krems
Krems, 3500
Landeskrankenhaus Feldkirch
Rankweil, 6830
Denmark3 sites
Rigshospitalet
Copenhagen, 2100
Regionshospitalet Godstrup
Herning, 7400
Odense Universitetshospital
Odense C, 5000
Netherlands3 sites
Universitair Medisch Centrum Groningen
Groningen, 9713 GZ
Maastricht Universitair Medisch Centrum
Maastricht, 6229 HX
Erasmus Medisch Centrum
Rotterdam, 3015 GD
Canada2 sites
London Health Sciences Centre
London, Ontario, N6A 5W9
CHU de Quebec Hopital de l Enfant Jesus
Québec, Quebec, G1R 2J6
Hong Kong2 sites
Princess Margaret Hospital
Kowloon
Prince of Wales Hospital, Chinese University of Hong Kong
Shatin, New Territories
Mexico2 sites
Health Pharma Professional Research SA de CV
Mexico City, Mexico City, 03100
Oncare
Mexico City, Mexico City, 03810
Romania2 sites
Institutul Oncologic Prof Dr Ion Chiricuta Cluj-Napoca
Cluj-Napoca, 400015
Spitalul Municipal Ploiesti
Ploieşti, 100337
About this study
Official title: A Phase 3, Open-label, Multicenter, Randomized Study of Tarlatamab in Combination With Durvalumab vs Durvalumab Alone in Subjects With Extensive-Stage Small-Cell Lung Cancer Following Platinum, Etoposide and Durvalumab (DeLLphi-305)
The primary objective of this study is to compare the efficacy of tarlatamab plus durvalumab with durvalumab alone on prolonging overall survival (OS).
- Being tested
- Tarlatamab, Durvalumab
- Keywords
- Extensive-Stage Small-Cell Lung Cancer, ES-SCLC, Platinum, Etoposide, Durvalumab, Tarlatamab, AMG 757
- Medical subject headings
- Small Cell Lung Carcinoma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TarlatamabDrug
Also called AMG 757
Intravenous (IV) infusion
DurvalumabDrug
IV infusion
| Study group | Role | What they receive |
|---|---|---|
| Tarlatamab in Combination With Durvalumab | Experimental | Participants will receive tarlatamab once every 2 weeks (Q2W) and durvalumab once every 4 weeks (Q4W). Receives: Drug: Tarlatamab; Drug: Durvalumab |
| Durvalumab Alone | Active comparator | Participants will receive durvalumab Q4W alone. Receives: Drug: Durvalumab |
What is being measured
The primary outcome is the main question the study is designed to answer.
OS
Measured: Up to approximately 3 years
Secondary outcomes (27)
Progression Free Survival (PFS)
Measured: Up to approximately 3 years
Overall Response (OR)
Measured: Up to approximately 3 years
Disease Control (DC) Rate
Measured: Up to approximately 3 years
Duration of Response (DoR)
Measured: Up to approximately 3 years
PFS at 6 Months
Measured: 6 months
PFS at 1 Year
Measured: 1 year
PFS at 2 Years
Measured: 2 years
OS at 6 Months
Measured: 6 months
OS at 1 Year
Measured: 1 year
OS at 2 Years
Measured: 2 years
OS at 3 Years
Measured: 3 years
Time to Progression (TTP)
Measured: Up to approximately 3 years
Number of Participants with Treatment-emergent Adverse Events (TEAEs)
Measured: Up to approximately 9 months
Number of Participants with TEAEs Grade 3 or Above per Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0.
Measured: Up to approximately 3 years
Number of Participants with Serious TEAEs
Measured: Up to approximately 3 years
Number of Participants with TEAEs Leading to Discontinuation of Treatment
Measured: Up to approximately 3 years
Number of Participants with Fatal TEAEs
Measured: Up to approximately 3 years
Number of Participants with Treatment-related Adverse Events (AEs)
Measured: Up to approximately 9 months
Number of Participants with Adverse Events of Interest (EOI)
Measured: Up to approximately 9 months
Serum Concentrations of Tarlatamab
Measured: Day 1 up to approximately 6 months
Number of Participants with Antitarlatamab Antibody Formation
Measured: Up to approximately 9 months
Time to First Deterioration (TTD) for Physical Function as Measured by European Organization for Research and Treatment of Cancer Quality of Life Questionnaire 30 (EORTC-QLQ-C30)
Measured: Baseline to Week 13 and Week 25
Change in Disease Symptoms of Cough as Measured Using EORTC-QLQ LC13
Measured: Baseline to Week 13 and Week 25
Change in Disease Symptoms of Chest Pain as Measured Using EORTC-QLQ LC13
Measured: Baseline to Week 13 and Week 25
Change in Disease Symptoms of Dyspnea as Measured Using EORTC-QLQ LC13
Measured: Baseline to Week 13 and Week 25
TTD for Global Health Status as Measured by EORTC-QLQ-C30
Measured: Baseline to Week 13 and Week 25
TTD for Quality of Life as Measured by EORTC-QLQ-C30
Measured: Baseline to Week 13 and Week 25
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Jan 2024
- Study start5 Jun 2024
- Primary completion2 Apr 2030 (estimated)
- Study completion2 Apr 2030 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Extensive-Stage Small-Cell Lung CancerStudies of the same condition, open and under way.
- More trials run by AmgenThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 563 participants (actual)
Sponsor and investigators
- Lead sponsor
- Amgen
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- MD, Study director, Amgen
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06211036
- Sponsor's protocol ID
- 20200041
- Other IDs
- 2023-505989-29, 2023
- Acronym
- DeLLphi-305
- Status last verified
- Nov 2026
- First submitted
- 8 Jan 2024
- Last updated
- 6 Nov 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
Publications
Perol M, Yoshida T, Ahn MJ, Gay CM, Schuler M, Liu H, Sezer A, Bilici A, Korantzis I, Lim SM, Otsubo K, Juan-Vidal O, Chen Y, Schvartsman G, Wang H, Dingemans AC, Clarke JM, Desai A, Marigil M, Chen Y, Abidi B, Wang J, Sands J; DeLLphi-305 Investigators. Tarlatamab-Durvalumab Maintenance for Extensive-Stage Small-Cell Lung Cancer. N Engl J Med. 2026 Oct 24. doi: 10.1056/NEJMoa2609482. Online ahead of print.
PubMed 42929702Paulson KG, Lau SCM, Ahn MJ, Moskovitz M, Pogorzelski M, Hafliger S, Parkes A, Zhang Y, Hamidi A, Thompson CG, Wermke M. Safety and activity of tarlatamab in combination with a PD-L1 inhibitor as first-line maintenance therapy after chemo-immunotherapy in patients with extensive-stage small-cell lung cancer (DeLLphi-303): a multicentre, non-randomised, phase 1b study. Lancet Oncol. 2025 Oct;26(10):1300-1311. doi: 10.1016/S1470-2045(25)00480-2. Epub 2025 Sep 8.
PubMed 40934933
Study at a glance
From the registry record, last updated by the sponsor on 6 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 3, Open-label, Multicenter, Randomized Study of Tarlatamab in Combination With Durvalumab vs Durvalumab Alone in Subjects With Extensive-Stage Small-Cell Lung Cancer Following Platinum, Etoposide and Durvalumab (DeLLphi-305)
- ClinicalTrials.gov ID
- NCT06211036
- Acronym / sponsor ID
- DeLLphi-305 / 20200041
- Keywords
- Extensive-Stage Small-Cell Lung Cancer, ES-SCLC, Platinum, Etoposide, Durvalumab, Tarlatamab, AMG 757
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 563 participants (actual)
- Lead sponsor
- AmgenIndustry (pharma, biotech, devices)
- Study start
- 5 Jun 2024 (actual)
- Primary completion
- 2 Apr 2030 (estimated)
- Study completion
- 2 Apr 2030 (estimated)
- First posted
- 18 Jan 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary objective of this study is to compare the efficacy of tarlatamab plus durvalumab with durvalumab alone on prolonging overall survival (OS).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Tarlatamab in Combination With Durvalumab | Experimental | Drug: Tarlatamab, Drug: DurvalumabParticipants will receive tarlatamab once every 2 weeks (Q2W) and durvalumab once every 4 weeks (Q4W). |
| Durvalumab Alone | Active comparator | Drug: DurvalumabParticipants will receive durvalumab Q4W alone. |
Who may qualify
- Ages
- 18 to 99 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Participant has provided informed consent prior to initiation of any study specific activities/procedures.
- Age >= 18 years (or >= legal adult age within the country if it is older than 18 years).
- Completed 3-4 cycles of platinum-etoposide chemotherapy with concurrent durvalumab as first-line treatment of extensive-stage (ES)-SCLC prior to enrollment, without disease progression (ongoing response or stable disease) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1).
- Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 to 1.
- Minimum life expectancy > 12 weeks.
Key exclusion criteria (30 listed)
- Symptomatic central nervous system (CNS) metastases, or leptomeningeal disease. Participants with treated brain metastases are eligible as per protocol.
- Prior history of severe or life-threatening events from any immune-mediated therapy.
- History of other malignancy within the past 2 years, with some exceptions as per protocol.
- Active or prior documented autoimmune or inflammatory disorders as per protocol.
- Myocardial infarction and/or symptomatic congestive heart failure (New York Heart Association > class II) within 6 months of first dose of study treatment.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| TarlatamabAlso: AMG 757Intravenous (IV) infusion | Drug | Tarlatamab in Combination With Durvalumab |
| DurvalumabIV infusion | Drug | Durvalumab Alone, Tarlatamab in Combination With Durvalumab |
Primary outcome
OS
Time frame: Up to approximately 3 years
27 secondary outcomes
Progression Free Survival (PFS)
Time frame: Up to approximately 3 years
Overall Response (OR)
Time frame: Up to approximately 3 years
Disease Control (DC) Rate
Time frame: Up to approximately 3 years
Duration of Response (DoR)
Time frame: Up to approximately 3 years
PFS at 6 Months
Time frame: 6 months
PFS at 1 Year
Time frame: 1 year
PFS at 2 Years
Time frame: 2 years
OS at 6 Months
Time frame: 6 months
OS at 1 Year
Time frame: 1 year
OS at 2 Years
Time frame: 2 years
OS at 3 Years
Time frame: 3 years
Time to Progression (TTP)
Time frame: Up to approximately 3 years
Number of Participants with Treatment-emergent Adverse Events (TEAEs)
Time frame: Up to approximately 9 months
Number of Participants with TEAEs Grade 3 or Above per Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0.
Time frame: Up to approximately 3 years
Number of Participants with Serious TEAEs
Time frame: Up to approximately 3 years
Number of Participants with TEAEs Leading to Discontinuation of Treatment
Time frame: Up to approximately 3 years
Number of Participants with Fatal TEAEs
Time frame: Up to approximately 3 years
Number of Participants with Treatment-related Adverse Events (AEs)
Time frame: Up to approximately 9 months
Number of Participants with Adverse Events of Interest (EOI)
Time frame: Up to approximately 9 months
Serum Concentrations of Tarlatamab
Time frame: Day 1 up to approximately 6 months
Number of Participants with Antitarlatamab Antibody Formation
Time frame: Up to approximately 9 months
Time to First Deterioration (TTD) for Physical Function as Measured by European Organization for Research and Treatment of Cancer Quality of Life Questionnaire 30 (EORTC-QLQ-C30)
Time frame: Baseline to Week 13 and Week 25
Change in Disease Symptoms of Cough as Measured Using EORTC-QLQ LC13
Time frame: Baseline to Week 13 and Week 25
Change in Disease Symptoms of Chest Pain as Measured Using EORTC-QLQ LC13
Time frame: Baseline to Week 13 and Week 25
Change in Disease Symptoms of Dyspnea as Measured Using EORTC-QLQ LC13
Time frame: Baseline to Week 13 and Week 25
TTD for Global Health Status as Measured by EORTC-QLQ-C30
Time frame: Baseline to Week 13 and Week 25
TTD for Quality of Life as Measured by EORTC-QLQ-C30
Time frame: Baseline to Week 13 and Week 25
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Nov 2026.
- Derived from this study: PubMed 42929702Perol M, Yoshida T, Ahn MJ, Gay CM, Schuler M, Liu H, Sezer A, Bilici A, Korantzis I, Lim SM, Otsubo K, Juan-Vidal O, Chen Y, Schvartsman G, Wang H, Dingemans AC, Clarke JM, Desai A, Marigil M, Chen Y, Abidi B, Wang J, Sands J; DeLLphi-305 Investigators. Tarlatamab-Durvalumab Maintenance for Extensive-Stage Small-Cell Lung Cancer. N Engl J Med. 2026 Oct 24. doi: 10.1056/NEJMoa2609482. Online ahead of print.
- Derived from this study: PubMed 40934933Paulson KG, Lau SCM, Ahn MJ, Moskovitz M, Pogorzelski M, Hafliger S, Parkes A, Zhang Y, Hamidi A, Thompson CG, Wermke M. Safety and activity of tarlatamab in combination with a PD-L1 inhibitor as first-line maintenance therapy after chemo-immunotherapy in patients with extensive-stage small-cell lung cancer (DeLLphi-303): a multicentre, non-randomised, phase 1b study. Lancet Oncol. 2025 Oct;26(10):1300-1311. doi: 10.1016/S1470-2045(25)00480-2. Epub 2025 Sep 8.
- AmgenTrials clinical trials websiteLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
MD study director
Amgen
219 sites in 29 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Tarlatamab and Durvalumab in people with Extensive-Stage Small-Cell Lung Cancer and Small-Cell Lung Cancer, run by Amgen at 219 sites in 29 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 30 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 6 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 219 sites in United States, China, Japan, France, Brazil and 24 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
OS (time frame: Up to approximately 3 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06211036, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2026.