SEATTLE, Aug. 1, 2017 /PRNewswire/ — CTI BioPharma Corp. (NASDAQ and MTA: CTIC) today announced that the first patient has been enrolled in PAC203, a Phase 2 clinical trial of pacritinib in patients with primary myelofibrosis who have failed prior ruxolitinib therapy. PAC203 is designed to evaluate the dose response relationship for safety and efficacy (spleen volume reduction at 12 and 24 weeks) of three dose regimens: 100 mg once-daily, 100 mg twice-daily (BID) and 200 mg BID. The 200 mg BID dose regimen was used in the Phase 3 PERSIST-2 trial of pacritinib in patients with myelofibrosis. The trial is expected to enroll up to approximately 105 patients.
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