Clinical trial Recruiting at 70 sites Phase1; Phase2 Interventional Ages 6 Months to 25

Zilovertamab Vedotin for Pediatric and Young Adult Cancer Patients

Official title: LIGHTBEAM-U01 Substudy 01A: A Phase 1/2 Substudy to Evaluate the Safety and Efficacy of Zilovertamab Vedotin in Pediatric and Young Adult Participants With Hematologic Malignancies or Solid Tumors

Run by Merck Sharp & Dohme LLC · NCT06395103 · Data updated 2026-11-12

This study is testing a new drug called zilovertamab vedotin to see if it can help kids and young adults with certain types of cancer that haven't responded to other treatments.

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Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages6 Months to 25 Years
SexAll
Enrollment90 (estimated)
SponsorMerck Sharp & Dohme LLC
Industry-sponsored
Drugs / interventionschemotherapy, radiation, prednisone, zilovertamab
Locations71 sites (Los Angeles, California and 70 other locations)
StatusRecruiting
StartedAugust 16, 2024
Main results expectedMarch 31, 2029
Study endsMarch 31, 2029
Registry record updatedOctober 30, 2026
Trial IDNCT06395103 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include pediatric and young adult patients diagnosed with specific hematologic malignancies or solid tumors as outlined in the eligibility criteria.

Probably not a fit

Patients with a history of solid organ transplant, significant cardiovascular disease, or certain other medical conditions may not benefit from this study.

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

What this trial studies

This study evaluates the safety and efficacy of zilovertamab vedotin in pediatric and young adult participants with relapsed or refractory hematologic malignancies, such as B-cell acute lymphoblastic leukemia and diffuse large B-cell lymphoma, as well as solid tumors like neuroblastoma and Ewing sarcoma. It is part of a larger platform study aimed at understanding the potential of this treatment in various cancer types. Participants will receive the investigational drug and be monitored for responses and side effects.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for young patients with difficult-to-treat cancers.

How similar studies have gone: Other studies have shown promise with similar approaches, but the specific application of zilovertamab vedotin in this population is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
The main inclusion and exclusion criteria include but are not limited to the following:

Inclusion Criteria:

* For hematological malignancies: Confirmed diagnosis of B-precursor B-ALL or DLBCL/Burkitt lymphoma according to World Health Organization (WHO) classification of neoplasms of the lymphoid tissues.
* For solid tumor malignancies: Histologically confirmed diagnosis of neuroblastoma or Ewing sarcoma.

Exclusion Criteria:

* History of solid organ transplant.
* Clinically significant (ie, active) cardiovascular disease.
* Known history of liver cirrhosis.
* Ongoing Grade \>1 peripheral neuropathy.
* Demyelinating form of Charcot-Marie-Tooth disease.
* Diagnosed with Down syndrome.
* Ongoing graft-versus-host disease (GVHD) of any grade or receiving systemic GVHD treatment or prophylaxis.
* History of human immunodeficiency virus (HIV) infection.
* Contraindication or hypersensitivity to any of the study intervention components.
* Received prior radiotherapy within 4 weeks of start of study intervention. Participants must have recovered from all radiation-related toxicities.
* Ongoing, chronic corticosteroid therapy (exceeding 10 mg daily of prednisone equivalent). Prednisone equivalent dosing must have been stable for at least 4 weeks before Cycle 1 Day 1 (C1D1).
* Received a strong cytochrome P450 3A4 (CYP3A4) inhibitor within 7 days or a strong CYP3A4 inducer within 14 days before the start of study intervention or expected requirement for chronic use of a strong CYP3A4 inhibitor or inducer during the study intervention period and for 30 days after the last dose of study intervention
* Received prior systemic anticancer therapy including investigational agents within 4 weeks before the first dose of study intervention (except for prophylactic intrathecal chemotherapy and/or cytoreductive therapy with steroids/hydroxyurea.
* Received a live or live-attenuated vaccine within 30 days before the first dose of study intervention. Administration of killed vaccines is allowed.
* Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration.
* Known additional malignancy that is progressing or has required active treatment within the past 1 year.
* Active infection requiring systemic therapy.
* Known history of Hepatitis B or known active Hepatitis C virus infection.
* Participants who have not adequately recovered from major surgery or have ongoing surgical complications.

Where it's running

  • Children's Hospital Los Angeles ( Site 1006)
    Los Angeles, California, United States
    Recruiting
  • Children's Hospital Colorado-Center for Cancer and Blood Disorders ( Site 1016)
    Aurora, Colorado, United States
    Recruiting
  • Yale New Haven Hospital ( Site 1012)
    New Haven, Connecticut, United States
    Recruiting
  • Johns Hopkins All Children's Hospital ( Site 1025)
    St. Petersburg, Florida, United States
    Recruiting
  • University of Iowa Health Care. ( Site 1017)
    Iowa City, Iowa, United States
    Recruiting
  • Dana-Farber Cancer Institute ( Site 1013)
    Boston, Massachusetts, United States
    Recruiting
Show 44 more locations
  • Corewell Health ( Site 1001)
    Grand Rapids, Michigan, United States
    Recruiting
  • Children's Mercy Hospital ( Site 1024)
    Kansas City, Missouri, United States
    Recruiting
  • Rutgers Cancer Institute of New Jersey ( Site 1008)
    New Brunswick, New Jersey, United States
    Recruiting
  • Memorial Sloan Kettering Cancer Center ( Site 1010)
    New York, New York, United States
    Recruiting
  • New York Medical College ( Site 1023)
    Valhalla, New York, United States
    Recruiting
  • Sanford Fargo Medical Center-Roger Maris Cancer Center ( Site 1003)
    Fargo, North Dakota, United States
    Recruiting
  • Oregon Health and Science University ( Site 1004)
    Portland, Oregon, United States
    Recruiting
  • Children's Hospital of Philadelphia (CHOP) ( Site 1021)
    Philadelphia, Pennsylvania, United States
    Recruiting
  • Sanford Children's Hospital-Sanford Children's Specialty Clinic ( Site 1015)
    Sioux Falls, South Dakota, United States
    Recruiting
  • University of Texas MD Anderson Cancer Center ( Site 1007)
    Houston, Texas, United States
    Recruiting
  • Intermountain - Primary Children's Hospital ( Site 1014)
    Salt Lake City, Utah, United States
    Recruiting
  • Sydney Children's Hospital ( Site 1997)
    Randwick, New South Wales, Australia
    Recruiting
  • Queensland Children's Hospital-Oncology & Haematology ( Site 1996)
    Brisbane, Queensland, Australia
    Recruiting
  • Royal Children's Hospital-Children's Cancer Centre ( Site 1994)
    Melbourne, Victoria, Australia
    Recruiting
  • UZ Gent ( Site 1428)
    Ghent, Oost-Vlaanderen, Belgium
    Recruiting
  • Hospital de Clinicas de Porto Alegre ( Site 1265)
    Porto Alegre, Rio Grande do Sul, Brazil
    Recruiting
  • Fundação Pio XII - Hospital de Câncer de Barretos ( Site 1264)
    Barretos, São Paulo, Brazil
    Recruiting
  • Fundação Faculdade Regional de Medicina de São José do Rio Preto-Centro Integrado de Pesquisa ( Site 1267)
    São José do Rio Preto, São Paulo, Brazil
    Recruiting
  • Alberta Children's Hospital ( Site 1227)
    Calgary, Alberta, Canada
    Recruiting
  • The Hospital for Sick Children ( Site 1225)
    Toronto, Ontario, Canada
    Recruiting
  • McGill University Health Centre-Pediatric HematologyOncology ( Site 1223)
    Montreal, Quebec, Canada
    Recruiting
  • Hospital Clínico Regional Dr. Guillermo Grant Benavente ( Site 1881)
    Concepción, Biobio, Chile
    Recruiting
  • Hospital Luis Calvo Mackenna ( Site 1879)
    Santiago, Region M. de Santiago, Chile
    Recruiting
  • Hospital Carlos Van Buren ( Site 1880)
    Valparaíso, Valparaiso, Chile
    Recruiting
  • Hospital Pablo Tobon Uribe ( Site 1923)
    Medellín, Antioquia, Colombia
    Recruiting
  • Clinica de la Costa S.A.S.-Clinical Research Oncology & Hematology -Pediatric ( Site 1924)
    Barranquilla, Atlántico, Colombia
    Recruiting
  • IMAT S.A.S ( Site 1921)
    Montería, Departamento de Córdoba, Colombia
    Recruiting
  • Detska nemocnice FN Brno ( Site 1388)
    Brno, Brno-mesto, Czechia
    Recruiting
  • Fakultni nemocnice v Motole-Klinika detske hematologie a onkologie ( Site 1387)
    Prague, Praha 5, Czechia
    Recruiting
  • Rigshospitalet-Department of paediatrics and adolescent medicine, Section of Paed haem-onc ( Site 1467)
    Copenhagen, Capital Region, Denmark
    Recruiting
  • CHU de Bordeaux. Hopital Pellegrin ( Site 1105)
    Bordeaux, Aquitaine, France
    Recruiting
  • CENTRE LEON BERARD-IHOPE (pediatrric oncology) ( Site 1100)
    Lyon, Auvergne-Rhône-Alpes, France
    Recruiting
  • Centre Hospitalier Universitaire de Nantes - Hôpital Femme-Enfant-Adolescent Chu De Nantes ( Site 1104)
    Nantes, Loire-Atlantique, France
    Recruiting
  • Assistance Publique Hôpitaux de Marseille - Hôpital de la Timone ( Site 1102)
    Marseille, Provence-Alpes-Côte d'Azur Region, France
    Recruiting
  • Gustave Roussy ( Site 1103)
    Villejuif, Île-de-France Region, France
    Recruiting
  • Universitaetsklinikum Tuebingen ( Site 1142)
    Tübingen, Baden-Wurttemberg, Germany
    Recruiting
  • Universitaetsklinikum Koeln. Klinik und Poliklinik ( Site 1145)
    Cologne, North Rhine-Westphalia, Germany
    Recruiting
  • Universitätsklinikum Münster - Albert Schweitzer Campus-Pädiatrische Hämatologie und Onkologie ( Site 1141)
    Münster, North Rhine-Westphalia, Germany
    Recruiting
  • Charité Campus Virchow-Klinikum-Klinik für Pädiatrie mit Schwerpunkt Hämatologie und Onkologie ( Site 1143)
    Berlin, Germany
    Recruiting
  • Aghia Sophia Children's Hospital-First Department of Pediatrics, National and Kapodistrian Universi ( Site 1797)
    Athens, Attica, Greece
    Recruiting
  • Semmelweis Egyetem ( Site 1838)
    Budapest, Hungary
    Recruiting
  • Rambam Health Care Campus-Pediatric Hemato-Oncology ( Site 1674)
    Haifa, Israel
    Recruiting
  • Sheba Medical Center ( Site 1675)
    Ramat Gan, Israel
    Recruiting
  • Fondazione IRCCS Istituto Nazionale dei Tumori-Pediatric Oncology ( Site 1552)
    Milan, Lombardy, Italy
    Recruiting

+21 more sites. See ClinicalTrials.gov for the full list.

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.