Recruiting

(DeLLphi-310)Tarlatamab and YL201 in Extensive Stage Small Cell Lung Cancer

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What is being tested

YL201

+ Tarlatamab

+ Atezolizumab

Drug
Who is being recruted

Bronchial Neoplasms+7

+ Carcinoma, Bronchogenic

+ Lung Diseases

From 18 to 99 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 1
Interventional
Study Start: May 2025
See protocol details

Summary

Principal SponsorAmgen
Study ContactAmgen Call Center
Last updated: February 6, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: May 16, 2025

Actual date on which the first participant was enrolled.

This study focuses on testing the safety and how well people can handle a combination of drugs, specifically tarlatamab and YL201, sometimes adding another drug called anti-PD-L1. It targets individuals with extensive stage small cell lung cancer, a form of cancer that requires more effective treatments. This research is important because it explores new combinations of medications that might better control the disease and improve patient outcomes, addressing the need for more treatment options. Participants in this study will receive these medications possibly through injections or other methods as determined by the researchers. The study is designed to carefully observe any side effects or reactions to these drugs, making sure they are safe for use. Although the potential benefits include finding a more effective treatment for this type of lung cancer, risks involve typical drug-related side effects, which the study aims to monitor closely.

Official TitleA Phase 1b Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Efficacy of Tarlatamab in Combination With YL201 With or Without Anti-PD-L1 in Subjects With Extensive Stage Small Cell Lung Cancer
NCT06898957
Principal SponsorAmgen
Study ContactAmgen Call Center
Last updated: February 6, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

200 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 99 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Bronchial NeoplasmsCarcinoma, BronchogenicLung DiseasesLung NeoplasmsNeoplasmsNeoplasms by SiteRespiratory Tract DiseasesRespiratory Tract NeoplasmsThoracic NeoplasmsSmall Cell Lung Carcinoma

Criteria

Inclusion Criteria: * Participants ≥ 18 years of age (or legal adult age within country) at time of signing informed consent. * Participants with histologically or cytologically confirmed ES-SCLC. * For Parts 1 and 2, participant must have ES-SCLC that has progressed or recurred following at least 1 line of platinum-based anti-cancer therapy. * For Part 3, participants must have ES-SCLC and no prior systemic treatment for ES SCLC other than 1 cycle of platinum-based chemotherapy, etoposide, and PD-(L)1 inhibitor in the first-line setting. * At least 1 measurable lesion as defined by RECIST 1.1. * Participants must have adequate organ function (cardiac, pulmonary, kidney, bone marrow, and liver). Exclusion Criteria: * Prior delta-like ligand 3 (DLL3) or B7 homolog 3 (B7-H3) targeted therapy. * Prior exposure to topoisomerase I inhibitors or antibody-drug conjugate (ADC) with topoisomerase I inhibitor payload. * Symptomatic central nervous system (CNS) metastases. Note: Participants with asymptomatic brain metastases are eligible as defined in the protocol. * History of (non-infectious) interstitial lung disease (ILD)/pneumonitis that required corticosteroids, current ILD/pneumonitis, or suspected ILD/pneumonitis that cannot be ruled out by imaging at screening. * Baseline requirement of supplemental oxygen.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

3 intervention groups are designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
YL201 will be administered at the selected maximum tolerated combination dose (MTCD) or recommended phase 2 dose (RP2D) in combination with tarlatamab administered IV at a fixed dose.

Group II

Experimental
Multiple dose levels of YL201 will be explored in combination with tarlatamab administered intravenously (IV) at a fixed dose using one-step dosing.

Group III

Experimental
YL201 will be administered at MTCD or RP2D in combination with tarlatamab and an anti-PD-L1 (atezolizumab or durvalumab) administered IV at a fixed dose.

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 36 locations

Recruiting

City of Hope Orange County Lennar Foundation Cancer Center

Irvine, United StatesOpen City of Hope Orange County Lennar Foundation Cancer Center in Google Maps
Recruiting

Yale New Haven Hospital

New Haven, United States
Recruiting

Moffitt Cancer Center

Tampa, United States
Recruiting

Dana Farber Cancer Institute

Boston, United States
Recruiting
36 Study Centers