A Study to Evaluate the Safety and Pharmacokinetics of Eflapegrastim in Pediatric Participants With Solid Tumors or Lymphomas and Treated With Myelosuppressive Chemotherapy

This is a Phase 2, open label, multicenter study of eflapegrastim in pediatric participants (≥1 month to \<17 years) with solid tumors or lymphoma. Approximately 40 participants will be enrolled and assigned to one of 4 age-based cohorts. Participants enrolled in Cohort 1 will be followed for dose-limiting toxicities (DLTs) prior to initiating parallel enrollment into Cohorts 2 through 4. All participants will receive chemotherapy as Standard of Care after which a subcutaneous (SC) dose of eflapegrastim will be administered up to 4 treatment cycles.