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Recruiting Phase 1 / Phase 2

Substudy 01A: Zilovertamab Vedotin in Pediatric and Young Adult Participants With Hematologic Malignancies or Solid Tumors (MK-9999-01A/LIGHTBEAM-U01)

About this study

Substudy 01A is part of a platform study. The purpose of this study is to assess the efficacy and safety of zilovertamab vedotin in pediatric participants with relapsed or refractory B-cell acute lymphoblastic leukemia (B-ALL), diffuse large B-cell lymphoma (DLBCL)/Burkitt lymphoma, or neuroblastoma and in pediatric and young adult participants with Ewing sarcoma.

Condition
B-cell Acute Lymphoblastic Leukemia, Diffuse Large B-cell Lymphoma, Burkitt Lymphoma, Neuroblastoma, Ewing Sarcoma
Tested
Zilovertamab vedotin
Sponsor
Merck Sharp & Dohme LLC

Who can join

Age
0.5 to 25 years
Sex
All sexes
Healthy volunteers
Not accepted

Inclusion 6

  • Minimum age: 0.5 years
  • Maximum age: 25 years
  • Study condition: B-cell Acute Lymphoblastic Leukemia, Diffuse Large B-cell Lymphoma, Burkitt Lymphoma, Neuroblastoma, Ewing Sarcoma
  • The main inclusion and exclusion criteria include but are not limited to the following:
  • 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 19

  • 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

71 sites, 70 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

Sydney Children's Hospital ( Site 1997)

Randwick, New South Wales, Australia

Recruiting

UZ Gent ( Site 1428)

Ghent, Oost-Vlaanderen, Belgium

Recruiting

Fundação Pio XII - Hospital de Câncer de Barretos ( Site 1264)

Barretos, São Paulo, Brazil

Recruiting

Hospital de Clinicas de Porto Alegre ( Site 1265)

Porto Alegre, Rio Grande do Sul, Brazil

Recruiting

and 65 more sites on ClinicalTrials.gov

Contact

Potential match only. Final eligibility is determined by the study team.