Clinical trial Recruiting at 31 sites Phase 1 Interventional Ages 18 and up

Tarlatamab treatment for extensive stage small cell lung cancer

Official title: A Phase 1b Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Preliminary Anti-Tumor Activity of Subcutaneous Tarlatamab in Subjects With Extensive Stage Small Cell Lung Cancer (DeLLphi-308)

Run by Amgen · NCT06598306 · Data updated 2026-11-12

This study is testing a new treatment called tarlatamab for people with extensive stage small cell lung cancer who haven't had success with previous chemotherapy to see if it helps them feel better.

More Extensive-stage Small-cell Lung Cancer trials

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment220 (estimated)
SponsorAmgen
Industry-sponsored
Drugs / interventionstarlatamab
Locations31 sites (Los Angeles, California and 30 other locations)
StatusRecruiting
StartedOctober 7, 2024
Main results expectedApril 24, 2027
Study endsApril 24, 2030
Registry record updatedJune 26, 2026
Trial IDNCT06598306 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with confirmed extensive stage small cell lung cancer who have progressed after prior platinum-based therapy.

Probably not a fit

Patients who have previously received DLL3 targeted therapy may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the safety and tolerability of subcutaneous tarlatamab in participants with extensive stage small cell lung cancer (ES-SCLC). The study involves administering tarlatamab to patients who have experienced disease progression after at least one line of platinum-based chemotherapy. Participants will be monitored for adverse effects and overall response to the treatment. The trial aims to gather data on the efficacy of this novel therapy in a challenging cancer type.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with extensive stage small cell lung cancer.

How similar studies have gone: While this approach is novel, previous studies targeting DLL3 in small cell lung cancer have shown promise, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants ≥ 18 years of age (or ≥ legal adult age within country if it is older than 18 years) at time of signing informed consent.
* Participants with histologically or cytologically confirmed ES-SCLC that progressed or recurred following at least one line of platinum-based anti-cancer therapy for SCLC.

Note: Participants with prior treatment for LS-SCLC should have also received another regimen for their recurrent, ES-SCLC disease.

* Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) of 0 or 1.
* Participants must have adequate organ function (cardiac, pulmonary, kidney, and liver).
* Participants must be able to have SC injections administered in the abdomen.
* Participants without measurable disease or tumor tissue (fresh biopsy or archival) available may be permitted after discussion with and approval by Amgen Medical Monitor.

Exclusion Criteria:

* Participants that have received prior DLL3 targeted therapy.
* Participants with untreated or symptomatic brain metastases or those requiring therapy with steroids.
* Note: Participants with asymptomatic brain metastatic lesions are allowed following definitive treatment (Amgen Medical Monitor may approve untreated, asymptomatic brain metastasis if local therapy is not required per investigator judgment).
* Participants with leptomeningeal disease.
* Participants with baseline oxygen requirement.

Where it's running

  • University of Southern California, Norris Comprehensive Cancer Center
    Los Angeles, California, United States
    Recruiting
  • University of Illinois Chicago
    Chicago, Illinois, United States
    Recruiting
  • Trinity Health Saint Joseph Mercy Ann Arbor
    Ann Arbor, Michigan, United States
    Recruiting
  • Avera Cancer Institute
    Sioux Falls, South Dakota, United States
    Recruiting
  • University of Texas MD Anderson Cancer Center
    Houston, Texas, United States
    Recruiting
  • Swedish Cancer Institute
    Seattle, Washington, United States
    Recruiting
Show 25 more locations
  • Chris OBrien Lifehouse
    Camperdown, New South Wales, Australia
    Recruiting
  • Calvary Mater Newcastle Hospital
    Waratah, New South Wales, Australia
    Recruiting
  • The Alfred Hospital
    Melbourne, Victoria, Australia
    Recruiting
  • Universitair Ziekenhuis Gent
    Ghent, Belgium
    Recruiting
  • Universitair Ziekenhuis Leuven - Campus Gasthuisberg
    Leuven, Belgium
    Recruiting
  • Centre Hospitalier Universitaire de Liege - Sart Tilman
    Liège, Belgium
    Recruiting
  • Jilin Cancer Hospital
    Changchun, Jilin, China
    Recruiting
  • Shanghai Pulmonary Hospital
    Shanghai, Shanghai Municipality, China
    Recruiting
  • Universitaetsklinikum Regensburg
    Regensburg, Germany
    Recruiting
  • Universitaetsklinikum Wuerzburg
    Würzburg, Germany
    Recruiting
  • Okayama University Hospital
    Okayama, Okayama-ken, Japan
    Recruiting
  • Wakayama Medical University Hospital
    Wakayama, Wakayama, Japan
    Recruiting
  • Uniwersyteckie Centrum Kliniczne
    Gdansk, Poland
    Recruiting
  • Instytut Centrum Zdrowia Matki Polki
    Lodz, Poland
    Recruiting
  • Wojewodzki Szpital im Sw Ojca Pio w Przemyslu
    Przemyśl, Poland
    Recruiting
  • Hospital Regional Universitario de Malaga
    Málaga, Andalusia, Spain
    Recruiting
  • Hospital Universitari Vall d Hebron
    Barcelona, Catalonia, Spain
    Recruiting
  • Hospital Universitari i Politecnic La Fe
    Valencia, Valencia, Spain
    Recruiting
  • Hospital Universitario 12 de Octubre
    Madrid, Spain
    Recruiting
  • Kantonsspital Graubuenden
    Chur, Switzerland
    Recruiting
  • Freiburg Spital
    Fribourg, Switzerland
    Recruiting
  • Kantonsspital Winterthur
    Winterthur, Switzerland
    Recruiting
  • Adana Sehir Egitim ve Arastirma Hastanesi
    Adana, Turkey (Türkiye)
    Recruiting
  • Ankara Bilkent Sehir Hastanesi
    Ankara, Turkey (Türkiye)
    Recruiting
  • Koc Universitesi Hastanesi
    Istanbul, Turkey (Türkiye)
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.