Clinical trial Recruiting at 7 sites Phase 3 Interventional Ages 18 and up

BL-M14D1 plus atezolizumab vs standard therapy in first-line extensive-stage small cell lung cancer

Official title: A Phase 3 Open-Label, Randomized Controlled Trial of BL-M14D1 and Atezolizumab vs. Standard-of-Care Therapy in Patients With First-Line Extensive-Stage Small Cell Lung Cancer

Run by SystImmune Inc. · NCT07625644 · Data updated 2026-11-12

A first-line treatment for adults with extensive-stage small cell lung cancer tests whether adding BL-M14D1 to atezolizumab and standard chemotherapy helps more than standard care.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment550 (estimated)
SponsorSystImmune Inc.
Industry-sponsored
Drugs / interventionschemotherapy, Atezolizumab
Locations62 sites (Springdale, Arkansas and 61 other locations)
StatusRecruiting
StartedAugust 4, 2026
Main results expectedJanuary 2030
Study endsJune 2031
Registry record updatedOctober 15, 2026
Trial IDNCT07625644 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with previously untreated extensive-stage SCLC who can receive platinum-based chemotherapy with an anti-PD-L1 inhibitor and have measurable disease.

Probably not a fit

Patients without measurable disease, poor performance status, or contraindications to the study drugs may not benefit.

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

What this trial studies

This is a global Phase 3, open-label study comparing BL-M14D1 plus atezolizumab to the current standard-of-care therapy in adults with previously untreated extensive-stage SCLC. The control arm uses carboplatin, etoposide, and atezolizumab, followed by maintenance atezolizumab with or without lurbinectedin. Primary goals are to assess whether the BL-M14D1 combination improves outcomes and maintains safety. Eligible participants have confirmed ES-SCLC, good performance status, measurable disease, and adequate organ function. Key exclusions include prior platinum or etoposide for limited-stage disease and certain autoimmune or other active diseases.

Why it matters

Potential benefit: If successful, the combination could offer improved responses or longer survival for patients with ES-SCLC.

How similar studies have gone: Similar immunotherapy-chemotherapy combinations have shown benefit in first-line ES-SCLC, but this specific agent pair is being tested for potential added value.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologically or cytologically confirmed first-line (1L), extensive-stage (ES) small cell lung cancer (SCLC)
* Must be eligible to receive a platinum-based chemotherapy regimen in combination with an anti-PD-L1 inhibitor.
* At least one measurable lesion based on RECIST v1.1 per investigator assessment.
* An Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 to 1.
* Adequate organ function

Exclusion Criteria:

* Received any kind of platinum or etoposide treatment for limited stage (LS) SCLC within 6 months prior to enrollment.
* Participants who have received prior topoisomerase inhibitor-based ADC therapy.
* Participants with history of severe heart disease
* Participants with active autoimmune diseases and inflammatory diseases,
* Participants with other prior or concurrent malignancies except for basal cell carcinoma of the skin, squamous cell carcinoma of the skin and/or carcinoma in situ after adequate resection, or other malignancy treated with curative intent with a disease-free interval of at least 3 years
* Other protocol-defined inclusion/exclusion criteria apply.

Where it's running

  • Highlands Oncology Group
    Springdale, Arkansas, United States
    Recruiting
  • OPN Healthcare
    Glendale, California, United States
    Recruiting
  • MemorialCare Todd Cancer Institute
    Long Beach, California, United States
    Recruiting
  • Valkyrie Clinical Trials
    Los Angeles, California, United States
    Recruiting
  • Total Health and Research Center
    Miami, Florida, United States
    Recruiting
  • Astera Cancer Care
    East Brunswick, New Jersey, United States
    Recruiting
Show 44 more locations
  • Virginia Cancer Specialists
    Fairfax, Virginia, United States
    Recruiting
  • Canberra Hospital
    Garran, Australian Capital Territory, Australia
    Not yet recruiting
  • Tasman Oncology
    Southport, Queensland, Australia
    Not yet recruiting
  • Flinders Medical Centre
    Bedford Park, South Australia, Australia
    Not yet recruiting
  • MHAT Dr. Tota Venkova
    Gabrovo, Bulgaria
    Not yet recruiting
  • MHAT Heart and Brain
    Pleven, Bulgaria
    Not yet recruiting
  • Medical Centre FutureMeds
    Plovdiv, Bulgaria
    Not yet recruiting
  • MHAT Pulmed
    Plovdiv, Bulgaria
    Not yet recruiting
  • UMHAT Sveti Ivan Rilski
    Sofia, Bulgaria
    Not yet recruiting
  • MHAT Serdikamed
    Sofia, Bulgaria
    Not yet recruiting
  • Arthur Child Cancer Centre
    Calgary, Alberta, Canada
    Not yet recruiting
  • University of Sherbrooke
    Greenfield Park, Quebec, Canada
    Not yet recruiting
  • Nemocnice České Budějovice, a.s.
    České Budějovice, Czechia
    Not yet recruiting
  • Nemocnice Agel Vítkovice
    Ostrava, Czechia
    Not yet recruiting
  • Fakultní nemocnice Ostrava (FN Ostrava)
    Ostrava-Poruba, Czechia
    Not yet recruiting
  • Organization Centre Hospitalier Intercommunal de Creteil (CHIC) - Centre de Recherche Clinique (CRC) (Clinical Research Center)
    Créteil, France
    Not yet recruiting
  • CLB - Centre Léon Bérard
    Lyon, France
    Not yet recruiting
  • IPC - lnstitut Paoli-Calmettes
    Marseille, France
    Not yet recruiting
  • Universite Pierre et Marie Curie (UPMC) - Center de Recherche des Cordeliers (CRC)
    Paris, France
    Not yet recruiting
  • ICO - L'Institut de Cancérologie de L'Ouest
    Saint-Herblain, France
    Not yet recruiting
  • LTD High Technology Hospital Medcenter
    Tbilisi, Georgia
    Not yet recruiting
  • Ltd New Hospitals
    Tbilisi, Georgia
    Not yet recruiting
  • Pineo Medical Ecosystem LtD
    Tbilisi, Georgia
    Not yet recruiting
  • LLC Todua Clinic
    Tbilisi, Georgia
    Not yet recruiting
  • The First Medical Clinic LLC
    Tbilisi, Georgia
    Not yet recruiting
  • Caucasus Medical Centre
    Tbilisi, Georgia
    Not yet recruiting
  • Lungenklinik/Lungenkrebszentrum Köln-Merheim
    Cologne, Germany
    Not yet recruiting
  • KEM | Evangelische Kliniken Essen Mitte gGmbH
    Essen, Germany
    Not yet recruiting
  • Krankenhaus Martha-Maria Halle-Dölau
    Halle, Germany
    Not yet recruiting
  • Henry Dunant Hospital Center
    Athens, Greece
    Not yet recruiting
  • Theageneio Anticancer Hospital
    Thessaloniki, Greece
    Not yet recruiting
  • St Luke's Hospital
    Thessaloniki, Greece
    Not yet recruiting
  • European Interbalkan Medical Center
    Thessaloniki, Greece
    Not yet recruiting
  • Semmelweis University Department of Pulmonology
    Budapest, Hungary
    Not yet recruiting
  • Mátrai Gyógyintézet
    Gyöngyös, Hungary
    Not yet recruiting
  • Bács-Kiskun Vármegyei Oktatókórház, Oncoradiology Center
    Kecskemét, Hungary
    Not yet recruiting
  • Református Pulmonológiai Intézet
    Törökbálint, Hungary
    Not yet recruiting
  • Centro di Riferimento Oncologico
    Aviano, Italy
    Not yet recruiting
  • Policlinico Paolo Giaccone University Hospital
    Palermo, Italy
    Not yet recruiting
  • Regina Elena Institute for Cancer Research
    Roma, Italy
    Not yet recruiting
  • Fondazione Policlinico Universitario A. Gemelli IRCCS
    Roma, Italy
    Not yet recruiting
  • AOUS Le Scotte, UOC Immunoterapia Oncologica
    Siena, Italy
    Not yet recruiting
  • Uniwersytecki Szpital Kliniczny w Bialymstoku, II Klinika Chorob Pluc, Raka Pluca i Chorob Wewnetrznych
    Bialystok, Poland
    Not yet recruiting
  • Szpitale Pomorskie Spolka z ograniczona odpowiedzialnoscia, Oddzial Onkologii i Radioterapii - Dzial Onkologii Klinicznej
    Gdynia, Poland
    Not yet recruiting

+12 more sites. See ClinicalTrials.gov for the full list.

Study contacts

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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.