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Study of Tarlatamab + ZL-1310 +/- Anti-programmed Death Ligand 1 (Anti-PD-L1) in Small Cell Lung Cancer (SCLC)

RECRUITINGPhase 1Sponsored by Amgen
Actively Recruiting
PhasePhase 1
SponsorAmgen
Started2026-04-21
Est. completion2028-05-21
Eligibility
Age18 Years – 99 Years
Healthy vol.Accepted
Locations6 sites

Summary

The primary objective of this trial is to evaluate the safety and tolerability of tarlatamab in combination with ZL-1310 with or without durvalumab and to determine the maximum tolerated combination dose (MTCD) and/or recommended phase 2 dose (RP2D) of ZL-1310 in combination with tarlatamab.

Eligibility

Age: 18 Years – 99 YearsHealthy volunteers accepted
Inclusion Criteria:

* Age ≥ 18 years (or ≥ legal age within the country if it is older than 18 years) at the time of signing the informed consent.
* Participants with Histologically or cytologically confirmed SCLC:
* For Part 1, participants must have SCLC that has progressed or recurred following at least 1 line of platinum-based anti-cancer therapy.
* For Parts 1 and 2, participants must have progressed or recurred following at least 1 line of platinum-based therapy. No prior tarlatamab is allowed in Cohort 2-1.
* For Part 3, participants must have extensive-stage SCLC (ES-SCLC) with no prior systemic treatment other than 1 cycle of platinum-based chemotherapy.

Note: Participants with prior treatment for limited-stage SCLC (LS-SCLC) before diagnosis of ES SCLC are permitted.

* Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
* At least 1 measurable lesion as defined per RECIST v1.1 within 21-day screening period, not previously irradiated.
* Adequate organ function (hematological, coagulation, renal, hepatic, pulmonary, and cardiac function).

Exclusion Criteria:

* Symptomatic CNS metastases. Participants with treated brain metastases are eligible provided they meet the criteria specified in the protocol.
* History of interstitial lung disease (ILD)/pneumonitis.
* Received thoracic radiation therapy within 90 days prior to first dose of trial intervention.
* Prior therapy with any delta-like ligand 3 (DLL3)-directed therapy.
* Prior exposure to topoisomerase I inhibitors or antibody-drug conjugate (ADC) with topoisomerase I inhibitor payload.
* Receiving strong CYP3A4 or CPY2D6 inhibitors within 14 days or 5 half-lives (whichever is longer) before the first dose of trial treatment.
* Enrollment in any tarlatamab clinical trial.

Conditions3

CancerLung CancerSmall Cell Lung Cancer

Interventions3

Locations6 sites

City of Hope Cancer Center Phoenix
Goodyear, Arizona, 85338
City of Hope Chicago
Zion, Illinois, 60099
Health Partners Cancer Center at Regions Hospital
Saint Paul, Minnesota, 55101
New York University Cancer Institute
Baptist Cancer Center

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Trial data from ClinicalTrials.gov. Trial status and eligibility can change — verify directly with the study contact or on ClinicalTrials.gov.

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