This is a single-arm, phase II study that will enroll a total of 45 subjects. All subjects will have a confirmed diagnosis of metastatic or unresectable soft tissue sarcoma or bone sarcoma. All subjects must have intact Rb, identified at the time of screening, by immunohistochemistry testing of submitted tumor specimen. Subjects will receive Abemaciclib 200 mg BID until progression or discontinuation criteria are met.
Osteosarcoma – Medical College of Wisconsin – Children’s Hospital of Wisconsin
Phase 2 STIR Trial: Haploidentical Transplant and Donor Natural Killer Cells for Solid Tumors (STIR)
The investigators hypothesize that this Phase 2 cellular and adoptive immunotherapy study using human leukocyte antigen (HLA)-haploidentical hematopoietic cell transplantation (HCT) followed by an early, post-transplant infusion of donor natural killer (NK) cells on Day +7 will not only be well-tolerated in this heavily-treated population (safety), but will also provide a mechanism to treat high-risk solid tumors, leading to improved disease control rate (efficacy). Disease control rate is defined as the combination of complete (CR) and partial (PR) response and stable disease (SD). The investigators further propose that this infusion of donor NK cells will influence the development of particular NK and T cell subtypes which will provide immediate/long-term tumor surveillance, infectious monitoring, and durable engraftment. Patients with high-risk solid tumors (Ewings Sarcoma, Neuroblastoma and Rhabdomyosarcoma) who have either measurable or unmeasurable disease and have met eligibility will be enrolled on this trial for a goal enrollment of 20 patients over 4 years.