General information
  • Disease category Lung Cancer (BASEC)
  • Recruitment status recruitment ongoing (BASEC/ICTRP)
  • Trial sites
    Chur, Freiburg, Winterthur
    (BASEC)
  • Contact Dr. med. Laetitia Mauti Laetitia.Mauti@ksw.ch (BASEC)
  • Data Source(s) BASEC: Import from 17.02.2026 ICTRP: N/A
  • Last update 17.02.2026 13:30
HumRes66008 | SNCTP000006157 | BASEC2024-01458

Subcutaneous Tarlatamab in Participants with Advanced Stage Small Cell Lung Cancer (DeLLphi-308)

  • Disease category Lung Cancer (BASEC)
  • Recruitment status recruitment ongoing (BASEC/ICTRP)
  • Trial sites
    Chur, Freiburg, Winterthur
    (BASEC)
  • Contact Dr. med. Laetitia Mauti Laetitia.Mauti@ksw.ch (BASEC)
  • Data Source(s) BASEC: Import from 17.02.2026 ICTRP: N/A
  • Last update 17.02.2026 13:30

Summary description of the study

This is an early clinical study to understand how participants tolerate and respond to different doses of SC Tarlatamab. This study is being conducted at multiple hospitals and is an open-label study, meaning both the researchers and participants know which treatment is being administered. Participants in this study suffer from advanced SCLC, which has either recurred or continued to grow after at least one prior SCLC treatment. The researchers' goal is to understand whether SC Tarlatamab is safe and well-tolerated, how the body responds to it, whether it can trigger the development of antibodies (an immune response), and slow cancer growth. The study includes three main phases: screening, treatment, and follow-up. During the follow-up, participants will no longer receive SC Tarlatamab but will undergo a safety check, followed by a long-term observation period. Participants will be included either in Part 1, where different doses of SC Tarlatamab are tested, or in Part 2, where the dose chosen in Part 1 is further investigated. A maximum of 100 participants can participate in both parts of the study (up to 60 participants in Part 1 and 40 participants in Part 2).

(BASEC)

Intervention under investigation

Tarlatamab is a special protein that binds to specific target cells and prompts the immune system to kill cancer cells. The subcutaneous injections in Part 1 are administered in the abdomen, and in Part 2 either in the abdomen or in the thigh.

In both parts, participants are monitored in the hospital for 24 hours after the first two SC Tarlatamab injections. After the third SC Tarlatamab injection, participants will be observed for a period of 6 to 8 hours, and after the fourth and fifth SC Tarlatamab injections for a period of 6 hours.

(BASEC)

Disease under investigation

Small Cell Lung Cancer (SCLC) is a type of cancer that originates in the lung. Small Cell Lung Cancer can grow very rapidly, and there is a high risk that it will spread to other parts of the body. Researchers are investigating a drug called Tarlatamab, which is administered to participants with SCLC who have already been treated for SCLC, via an injection just under the skin (subcutaneous; SC). Tarlatamab targets a protein found in SCLC called delta-like ligand 3 (DLL3).

(BASEC)

Criteria for participation in trial
The study will include men and women aged 18 years and older who have been diagnosed with advanced SCLC that has either recurred or continued to grow after at least one prior treatment. Participants must have adequate organ function and be in physical condition to tolerate the treatment. Participants must be able to receive subcutaneous injections of Tarlatamab in their abdomen or thigh, depending on which part of the study they are included in. Additional inclusion criteria apply according to the study protocol. (BASEC)

Exclusion criteria
Participants must not have received prior DLL3-targeted treatment and must not have untreated or symptomatic SCLC that has spread to the brain. Pregnant women, breastfeeding women, or women planning a pregnancy are not allowed to participate in the study. Participants must not receive any other investigational drugs. Additional exclusion criteria apply according to the study protocol. (BASEC)

Trial sites

Chur, Freiburg, Winterthur

(BASEC)

not available

Sponsor

Amgen Inc. Thousand Oaks, CA, USA Amgen Switzerland AG, Rotkreuz

(BASEC)

Contact

Contact Person Switzerland

Dr. med. Laetitia Mauti

+41 52 266 23 73

Laetitia.Mauti@ksw.ch

Kantonsspital Winterthur, Medizinische Onkologie

(BASEC)

Scientific Information

not available

Name of the authorising ethics committee (for multicentre studies, only the lead committee)

Ethics Committee Zurich

(BASEC)

Date of authorisation

25.10.2024

(BASEC)


ICTRP Trial ID
not available

Official title (approved by ethics committee)
Eine Phase-1b-Studie zur Beurteilung der Sicherheit, Verträglichkeit, Pharmakokinetik und vorläufigen antitumoralen Aktivität von Tarlatamab subkutan bei Teilnehmenden mit kleinzelligem Lungenkarzinom im fortgeschrittenen Stadium (DeLLphi-308) (BASEC)

Academic title
not available

Public title
not available

Disease under investigation
not available

Intervention under investigation
not available

Type of trial
not available

Trial design
not available

Inclusion/Exclusion criteria
not available

not available

Primary and secondary end points
not available

not available

Registration date
not available

Incorporation of the first participant
not available

Secondary sponsors
not available

Additional contacts
not available

Secondary trial IDs
not available

Results-Individual Participant Data (IPD)
not available

Further information on the trial
not available

Results of the trial

Results summary

not available

Link to the results in the primary register

not available