This is a Phase 1, open-label, study of TGR-1202, a PI3K delta inhibitor, administered together with ruxolitinib in patients with myeloproliferative neoplasms (specifically: polycythemia vera, primary myelofibrosis, PPV-MF or PET-MF) and MDS/MPN.
The escalation will include 2 initial sequential stages. Stage 1 will include myelofibrosis or hydroxyurea-resistant/refractory PV patients already taking therapeutic levels of ruxolitinib, but who are not achieving maximal response at the highest tolerated dose of ruxolitinib as discussed among investigators. Only TGR-1202 will be escalated in a modified 3+3 dose escalation algorithm to determine the MTD of TGR-1202 to be given with any given dose of ruxolitinib. Stage 2 will include myelofibrosis or hydroxyurea-resistant/refractory PV patients who have never been on JAK-STAT inhibitory agents, and includes simultaneously initiation of both ruxolitinib and TGR-1202. In Stage 2, JAK Inhibitor naïve patients will receive TGR-1202 at the recommended dose established in Cohort 1, and ruxolitinib. As patients in Stage 1 will be on ruxolitinib at different doses, dose levels in Stage 2 will expand to meet requirements for safety analysis.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
60
Stage 1 will include myelofibrosis or hydroxyurea-resistant/refractory PV patients already taking therapeutic levels of ruxolitinib, but who are not achieving maximal response at highest tolerated dose of ruxolitinib. Stage 2 will include myelofibrosis or hydroxyurea-resistant/refractory PV patients who have never been on JAK-STAT inhibitory agents, and includes simultaneously initiation of both ruxolitinib and TGR-1202. TGR-1202 will be administered at or below the recommended dose established in Stage 1. Expansion will commence after proper combination doses of both agents is established.
Mayo Clinic - Arizona
Phoenix, Arizona, United States
University of Colorado Cancer Center
Aurora, Colorado, United States
Vanderbilt-Ingram Cancer Center
Nashville, Tennessee, United States
Mays Cancer Center at University of Texas Health San Antonio
San Antonio, Texas, United States
Safety of TGR1202 in combination with ruxolitinib
All patients who have received at least one dose of TGR-1202 will be included in the safety population. All clinical safety data (vital signs, routine laboratory tests, and adverse events) will be tabulated and listed. The safety and tolerability of TGR-1202 and ruxolitinib will be evaluated by means of drug-related dose limiting toxicity, adverse event (AE) reports, physical examinations and laboratory safety evaluations.
Time frame: </=12 months
Overall response
Number of patients in each response category, polycythemia IWG response criteria, IWG-MRT response criteria, IWG MDS/MPN response criteria summarized as follows for target lesion criteria (see IWG for additional details): complete response (CR), normalization of bone marrow, peripheral counts, spleen size, and symptoms; partial response (PR); Hematologic improvement (HI), or progressive disease (PD). Patients are categorized according to the best response achieved prior to occurrence of progressive disease, where best response hierarchy is CR\>PR\>HI\>SD\>PD.
Time frame: EOT - 12 months
Total symptom score (MPN-TSS)
The myeloproliferative neoplasm - total symptoms score (MPN-TSS) is a validated tool in measurement in symptoms for patients with these diseases and we will measure patient reported outcomes with this validated tool
Time frame: 16 weeks of therapy
Blood levels of TGR1202 in combination with ruxolitinib (Pharmacokinetics)
The PK parameters (including AUC (0-∞), AUC (0- τ), Cmax, tmax, λz, and t½) of TGR-1202 and ruxolitinib following will be assessed by analysis of TGR-1202 plasma concentrations during the dose escalation phase of the study.
Time frame: 30 days
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Medical College of Wisconsin
Milwaukee, Wisconsin, United States