Selinexor in Advanced Liposarcoma

This is a randomized, multicenter, double-blind, placebo-controlled, Phase 2-3 study of patients diagnosed with advanced unresectable dedifferentiated liposarcoma. Approximately 342 total patients will be randomized to study treatment (selinexor or placebo).

Sex

All

Minimum age

12 Years

Inclusion Criteria:

1. Patients ≥12 years of age
2. Body surface area (BSA) ≥ 1.2 m2
3. Histologic evidence of DDLS at any time prior to randomization AND current evidence of DDLS requiring treatment
4. Must have measurable disease per RECIST v1.1 Response Criteria
5. Radiologic evidence of disease progression within 6 months prior to randomization. If the patient received other intervening therapy after documented disease progression, further disease progression must be documented after the completion of the intervening therapy
6. Must have had at least 2 prior lines of systemic therapy for liposarcoma (not to exceed 5 prior lines)
7. If patient received any previous systemic therapy, the last dose must have been ≥ 21 days prior to randomization (or ≥ 5 half-lives of that drug, whichever is shorter) with all clinically significant therapy-related toxicities having resolved to ≤ Grade 1

Exclusion Criteria:

1. Patients with pure well-differentiated liposarcoma (WDLS), myxoid/round cell or pleomorphic tumor histologic subtypes
2. Known active hepatitis B (HepB), hepatitis C (HepC) or human immunodeficiency virus (HIV) infection
3. Known central nervous system metastases

• DERIVEDGounder MM, Razak AA, Somaiah N, Chawla S, Martin-Broto J, Grignani G, Schuetze SM, Vincenzi B, Wagner AJ, Chmielowski B, Jones RL, Riedel RF, Stacchiotti S, Loggers ET, Ganjoo KN, Le Cesne A, Italiano A, Garcia Del Muro X, Burgess M, Piperno-Neumann S, Ryan C, Mulcahy MF, Forscher C, Penel N, Okuno S, Elias A, Hartner L, Philip T, Alcindor T, Kasper B, Reichardt P, Lapeire L, Blay JY, Chevreau C, Valverde Morales CM, Schwartz GK, Chen JL, Deshpande H, Davis EJ, Nicholas G, Groschel S, Hatcher H, Duffaud F, Herraez AC, Beveridge RD, Badalamenti G, Eriksson M, Meyer C, von Mehren M, Van Tine BA, Gotze K, Mazzeo F, Yakobson A, Zick A, Lee A, Gonzalez AE, Napolitano A, Dickson MA, Michel D, Meng C, Li L, Liu J, Ben-Shahar O, Van Domelen DR, Walker CJ, Chang H, Landesman Y, Shah JJ, Shacham S, Kauffman MG, Attia S. Selinexor in Advanced, Metastatic Dedifferentiated Liposarcoma: A Multinational, Randomized, Double-Blind, Placebo-Controlled Trial. J Clin Oncol. 2022 Aug 1;40(22):2479-2490. doi: 10.1200/JCO.21.01829. Epub 2022 Apr 8. PMID 35394800