Phase II, Open Label, Single Arm Study of SAR302503 In Myelofibrosis Patients Previously Treated With Ruxolitinib

Summary

Primary Objective: \- To evaluate the efficacy of once daily dose of SAR302503 in subjects previously treated with ruxolitinib and with a current diagnosis of intermediate-1 with symptoms, Intermediate-2 or high-risk primary myelofibrosis (PMF), post-polycythemia vera myelofibrosis (Post-PV MF), or post-essential thrombocythemia myelofibrosis (Post-ET MF) based on the reduction of spleen volume at the end of 6 treatment cycles; Secondary Objectives: * To evaluate the effect of SAR302503 on Myelofibrosis (MF) associated symptoms as measured by the modified Myelofibrosis Symptom Assessment Form (MFSAF) diary * To evaluate the durability of splenic response * To evaluate the splenic response to SAR302503 by palpation at the end of Cycle 6 * To evaluate the splenic response to SAR302503 at the end of Cycle 3 * To evaluate the effect of SAR302503 on the Janus kinase 2 (JAK2) V617F allele burden * To evaluate the safety and tolerability of SAR302503 in this population * To evaluate plasma concentrations of SAR302503 for population PK analysis, if warranted

Timeline

Start

2012-04-30

Primary completion

2014-04-30

Completion

2014-04-30

Publications

• Harrison CN, Schaap N, Vannucchi AM, Kiladjian JJ, Tiu RV, Zachee P, Jourdan E, Winton E, Silver RT, Schouten HC, Passamonti F, Zweegman S, Talpaz M, Lager J, Shun Z, Mesa RA. Janus kinase-2 inhibitor fedratinib in patients with myelofibrosis previously treated with ruxolitinib (JAKARTA-2): a single-arm, open-label, non-randomised, phase 2, multicentre study. Lancet Haematol. 2017 Jul;4(7):e317-e324. doi: 10.1016/S2352-3026(17)30088-1. Epub 2017 Jun 8.

Drugs

Indications