PD0332991 (Palbociclib) in Patients With Advanced or Metastatic Liposarcoma

Summary

The purpose of this study is to find out what effects, good and/or bad, Palbociclib (Ibrance) (formerly known as PD0332991) has on the patient and on the liposarcoma. Palbociclib is an investigational drug. An investigational drug is a medication that has not been approved for marketing by the Food and Drug Administration (FDA). Palbociclib blocks a protein called CDK4 which is part of a pathway in liposarcoma cells that is over-active. The investigators hope that blocking CDK4 will shut down this pathway in the liposarcoma cells and stop tumors from growing. Palbociclib is an oral medication.

Timeline

Start

2010-09-23

Primary completion

2016-10-25

Completion

2016-10-25

Outcome

Met primary endpoint

paper At 12 weeks, PFS was 66% (90% CI, 51% to 100%), significantly exceeding the primary end point. PMID 23569312 ↗

Publications

• McAndrew NP, Dickson MA, Clark AS, Troxel AB, O'Hara MH, Colameco C, Gallager M, Gramlich K, Zafman K, Vaughn D, Schwartz GK, O'Dwyer PJ, DeMichele A. Early treatment-related neutropenia predicts response to palbociclib. Br J Cancer. 2020 Sep;123(6):912-918. doi: 10.1038/s41416-020-0967-7. Epub 2020 Jul 9.
• Dickson MA, Schwartz GK, Keohan ML, D'Angelo SP, Gounder MM, Chi P, Antonescu CR, Landa J, Qin LX, Crago AM, Singer S, Koff A, Tap WD. Progression-Free Survival Among Patients With Well-Differentiated or Dedifferentiated Liposarcoma Treated With CDK4 Inhibitor Palbociclib: A Phase 2 Clinical Trial. JAMA Oncol. 2016 Jul 1;2(7):937-40. doi: 10.1001/jamaoncol.2016.0264.
• Dickson MA, Tap WD, Keohan ML, D'Angelo SP, Gounder MM, Antonescu CR, Landa J, Qin LX, Rathbone DD, Condy MM, Ustoyev Y, Crago AM, Singer S, Schwartz GK. Phase II trial of the CDK4 inhibitor PD0332991 in patients with advanced CDK4-amplified well-differentiated or dedifferentiated liposarcoma. J Clin Oncol. 2013 Jun 1;31(16):2024-8. doi: 10.1200/JCO.2012.46.5476. Epub 2013 Apr 8.

Drugs

Indications