A Randomized, Open-Label, Phase 2 Study Evaluating Abemaciclib in Combination With Irinotecan and Temozolomide in Participants With Relapsed or Refractory Ewing's Sarcomaa
The original pathological report is required; repeat biopsy at progression is not required
Refractory disease or confirmed radiological progression or recurrence following first or later line of treatment of Ewing's sarcoma or Ewing's sarcoma-like tumor
Participants must have one measurable or evaluable lesion as defined by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1
Lansky score ≥50 for participants <16 years of age, and Karnofsky score ≥50 for participants ≥16 years of age
Participants must have discontinued all previous treatments for cancer or investigational agents ≥7 days after the last dose and must have recovered from the acute effects
Adequate hematologic and organ function ≤14 days prior to Day 1 of Cycle 1
Platelets ≥75,000/cubic millimeter (mm³), hemoglobin ≥8 grams per deciliter (g/dL) (≥100 grams per liter [g/L]), and absolute neutrophil count ≥1000/microliter (µL)
Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤3.0 × upper limit of normal (ULN); total bilirubin ≤1.5 × ULN
Creatinine clearance or calculated glomerular filtration rate (GFR) ≥60 mL/min/m² or serum creatinine based on age/gender
Female participants of childbearing potential must have a negative urine or serum pregnancy test
Body weight ≥10 kg
Must be able to swallow and/or have a gastric/nasogastric tube
Participants in the European Union must be able to swallow intact capsules
Stable or decreasing dose of steroids at least 7 days prior to enrollment
Life expectancy of at least 8 weeks and able to complete at least 1 cycle of treatment
Participants/caregivers are willing to follow study procedures and make themselves available for the duration of the study
Key Exclusion Criteria
Severe and/or uncontrolled concurrent medical disease or psychiatric illness/social situation that, in the judgment of the investigator, could cause unacceptable safety risks or compromise compliance with the protocol
Active fungal, bacterial, and/or known severe viral infection, including but not limited to HIV or viral hepatitis A, B, or C
Prior allogeneic bone marrow or solid organ transplant
Major surgical procedure, laparoscopic procedure, or significant traumatic injury within 28 days prior to enrollment. Surgical or other wounds must be adequately healed prior to enrollment
Pregnant or breastfeeding
Prior treatment with a cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitor
Progression during prior treatment with irinotecan and/or temozolomide
Known intolerability or hypersensitivity to any of the study treatments or dacarbazine
Diagnosed and/or treated for an additional malignancy within 3 years prior to enrollment
a
This clinical trial is being conducted globally.
b
Administered orally.
c
Administered intravenously.
For information on trial enrollment, locations, and more, call
1-800-545-5979.