Clinical trial
A 2-Part, Phase 2, Open-Label Study of the Safety, Tolerability, and Efficacy of Itacitinib Immediate Release in Participants With Primary Myelofibrosis or Secondary Myelofibrosis (Post-Polycythemia Vera Myelofibrosis or Post-Essential Thrombocythemia Myelofibrosis) Who Have Received Prior Ruxolitinib and/or Fedratinib Monotherapy
Name
INCB 39110-213/LIMBER-213
Description
This is a 2-part study. In Part 1, participants will be dosed at 2 different dose levels in order to select the RP2D for Part 2 of the study.
Trial arms
Trial start
2021-07-12
Estimated PCD
2023-08-24
Trial end
2023-08-24
Status
Completed
Phase
Early phase I
Treatment
itacitinib
itacitinb Immediate Release (IR) will be dosed orally twice a day
Arms:
Part 1 : Dose Escalation of itacitinib, Part 2 : Dose Expansion of itacitinib
Other names:
INCB039110
Size
4
Primary endpoint
Part 1 : Treatment Emergent Adverse Events (TEAE'S)
24 Weeks
Part 2 : Spleen Volume Reduction by MRI/CT Scan
24 weeks
Part 2 : Spleen Volume Reduction
24 weeks
Eligibility criteria
Inclusion Criteria:
* Diagnosis of primary MF meeting the 2016 WHO criteria for overt PMF or secondary MF (PPV-MF or PET-MF) meeting the 2008 IWG-MRT criteria.
* At least Intermediate 1 risk MF according to the DIPSS.
* Prior treatment with ruxolitinib and/or fedratinib monotherapy
* Currently receiving ruxolitinib or fedratinib monotherapy for PMF or secondary MF.
* Splenomegaly defined as palpable spleen at least 5 cm below the left costal margin or volume ≥ 450 cm3 on imaging assessed during screening.
* Allogeneic stem cell transplant not planned.
* Platelet is greater than or equal to 50 × 109/L at screening.
* Ability to comprehend and willingness to sign a written ICF for the study.
* Willingness to avoid pregnancy or fathering children.
Exclusion Criteria:
* Prior treatment with a JAK inhibitor other than ruxolitinib or fedratinib
* Record of ≥ 10% myeloid blasts in the peripheral blood (on peripheral blood smear) or bone marrow prior to or at the time of screening
* For participants on ruxolitinib or fedratinib, unable to be tapered from that treatment over the course of 14 days without corticosteroids, hydroxyurea, or other agents
* Treatment with ruxolitinib, fedratinib or other MF-directed therapy (approved or investigational) within 2 weeks of Day 1
* Prior splenectomy or splenic irradiation within 6 months before receiving the first dose of itacitinib
* Unable or unwilling to undergo serial MRI or CT scans for spleen volume measurement
* Unable or unwilling to complete MFSAF v4.0 diary on a daily basis during the study
* ECOG performance status ≥ 3
* Life expectancy less than 24 weeks
* Not willing to receive RBC or platelet transfusions
* Participants with laboratory values at screening outside of protocol defined ranges
* Significant concurrent, uncontrolled medical condition
* Participants with impaired cardiac function or clinically significant cardiac disease unless approved by medical monitor/sponsor
* History or presence of an abnormal ECG that, in the investigator's opinion, is clinically meaningful
* Chronic or current active infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment.
* Evidence of HBV or HCV infection or risk of reactivation
* Known HIV infection.
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE2'], 'designInfo': {'allocation': 'NON_RANDOMIZED', 'interventionModel': 'SEQUENTIAL', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'NONE'}}, 'enrollmentInfo': {'count': 4, 'type': 'ACTUAL'}}
Updated at
2023-08-30
1 organization
1 product
3 indications
Product
itacitinibIndication
MyelofibrosisIndication
Polycythemia VeraIndication
ThrombocythemiaOrganization
Incyte