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New drug duo takes on tough lung cancer

NCT ID NCT07037758

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial is testing whether combining two drugs, tarlatamab and AB248, is safe and tolerable for people with extensive stage small cell lung cancer that has worsened after at least one prior treatment. About 380 adults will take part. The main goals are to check for side effects and find the best dose of the combination.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
tarlatamab and AB248 (two drugs given by IV infusion)
What this could lead to
If it works, this could point toward a new combination treatment for extensive stage small cell lung cancer that has stopped responding to other therapies.
What could go wrong
This is a very early Phase 1b study, so safety and the right dose are still being figured out. Many drug combinations fail at this stage, and side effects could be serious.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 380 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2025

Expected to finish

Jan 2031

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 90 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Participant has provided informed consent before initiation of any study-specific activities/procedures. 2. Participants ≥ 18 years (or ≥ legal age within the country if it is older than 18 years) at the time of signing the informed consent. 3. Participants with histologically or cytologically confirmed ES-SCLC that has progressed or recurred following at least 1 line of anti-cancer therapy for ES-SCLC. 4. Participants must have at least 1 measurable lesion as defined by RECIST 1.1 within 21-day screening period, not previously irradiated. 5. Participants must have adequate organ function (hematological, coagulation, cardiac, pulmonary, kidney, and liver). 6. Participants must submit a fresh tumor biopsy at screening unless a new biopsy cannot be performed safely or is infeasible. Participants who cannot provide fresh tissue may provide archival tissue that was collected after last anticancer therapy. Exclusion Criteria: 1. Symptomatic central nervous system (CNS) metastases. 2. Participants with brain metastases may be eligible if criteria defined in the protocol are met. 3. Prior therapy with any delta-like ligand 3 (DLL3)-directed therapy (including tarlatamab). 4. Prior interleukin (IL)-2, IL-7 or IL-15 targeted therapy. 5. Baseline (at rest) requirement of supplemental oxygen.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    19 sites in 3 countries. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Adana Sehir Egitim ve Arastirma Hastanesi

    RECRUITING

    Adana, 01370, Turkey (Türkiye)

  • Allegheny General Hospital

    RECRUITING

    Pittsburgh, Pennsylvania, 15212, United States

  • Ankara Bilkent Sehir Hastanesi

    RECRUITING

    Ankara, 06800, Turkey (Türkiye)

  • Avera Cancer Institute

    RECRUITING

    Sioux Falls, South Dakota, 57105, United States

  • Banner MD Anderson Cancer Center

    RECRUITING

    Gilbert, Arizona, 85234, United States

  • Baptist Cancer Center

    RECRUITING

    Memphis, Tennessee, 38120, United States

  • Chungbuk National University Hospital

    RECRUITING

    Cheongju Chungbuk, 28644, South Korea

  • Dana-Farber Cancer Institute

    RECRUITING

    Boston, Massachusetts, 02215, United States

  • Emory University

    RECRUITING

    Atlanta, Georgia, 30322, United States

  • Hacettepe Universitesi Tip Fakultesi Hastanesi

    RECRUITING

    Ankara, 06230, Turkey (Türkiye)

  • Memorial Sloan Kettering Cancer Center

    RECRUITING

    New York, New York, 10021, United States

  • Moffitt Cancer Center

    RECRUITING

    Tampa, Florida, 33612, United States

  • Norton Cancer Institute - Downtown

    RECRUITING

    Louisville, Kentucky, 40202-1703, United States

  • Seoul National University Bundang Hospital

    RECRUITING

    Seongnam-si, Gyeonggi-do, 13620, South Korea

  • Severance Hospital Yonsei University Health System

    RECRUITING

    Seoul, 03722, South Korea

  • Sidney Kimmel Cancer Center

    RECRUITING

    Philadelphia, Pennsylvania, 19107, United States

  • Siteman Cancer Center

    RECRUITING

    St Louis, Missouri, 63110, United States

  • Swedish Cancer Institute Medical Oncology

    RECRUITING

    Seattle, Washington, 98109, United States

  • University of Southern California, Norris Comprehensive Cancer Center

    RECRUITING

    Los Angeles, California, 90033, United States

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