RecruitingPrimary MyelofibrosisMyelofibrosis; Primary Myelofibrosis; Post-polycythemia Vera Myelofibrosis; Post-essential Thrombocythemia Myelofibrosis
Study of Momelotinib in Combination With Luspatercept in Participants With Transfusion Dependent Myelofibrosis
Eligible age
18+ yrs
Accepts
All genders
Locations
5 states
Healthy volunteers
No
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About this study
The purpose of this Phase 2 study is to evaluate the efficacy and safety of momelotinib (MMB) in combination with luspatercept (LUSPA) in participants with transfusion dependence (TD) primary myelofibrosis (PMF) or Post-polycythemia vera (PV)/ essential thrombocythemia (ET) myelofibrosis (MF) who are either janus kinase (JAK) inhibitor (JAKi) naïve or experienced.
Sponsor: GlaxoSmithKline
You may qualify if…
- ✓ 1. Is age ≥18 years.
- ✓ 2. Confirmed diagnosis of PMF in accordance with the World Health Organization (WHO) 2016 criteria, or Post-PV/ET myelofibrosis in accordance with the International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) criteria.
- ✓ 3. JAKi naïve or previously treated with either ruxolitinib or fedratinib for PMF or Post-PV/ET myelofibrosis for ≥90 days, or ≥28 days if JAKi therapy is complicated by RBC transfusion requirement of ≥4 units in 8 weeks, or Grade 3/4 AEs of thrombocytopenia, anemia, or hematoma.
- ✓ 4. High risk, intermediate-2, or intermediate-1 risk as defined by Dynamic International Prognostic Scoring System (DIPSS) \[Passamonti, 2010\] or DIPSS-plus \[Gangat, 2011\].
- ✓ 5. TD defined as requiring RBC transfusion ≥4 units or HgB \< 8 g/dL in the 8 weeks prior to the first dose of study treatment (NOTE: 2 consecutive Hgb \< 8 g/dL, at least 1 week apart are required; Hgb values impacted by transfusions are excluded). Only transfusions given when Hgb levels are ≤9.5 g/dL are counted towards TD. RBC transfusions given for clinically overt bleeding, or accident/injury (as assessed by the investigator) are not counted towards TD.
You may not qualify if…
- ✕ 1. History of intestinal disease, inflammatory bowel disease, major gastric surgery, or other gastrointestinal conditions (e.g., uncontrolled nausea, vomiting, malabsorption syndrome) likely to alter absorption of study intervention or result in inability to swallow oral medications.
- ✕ 2. Participants with an invasive malignancy or history of invasive malignancy other than the disease under study within the last 5 years.
- ✕ 3. Known clinically significant anemia due to iron, vitamin B12, or folate deficiencies, or autoimmune or hereditary hemolytic anemia, gastrointestinal bleeding, or thalassemia.
- ✕ 4. Uncontrolled intercurrent illness:
- ✕ 1. Active uncontrolled infection (participants receiving outpatient antibacterial and/or antiviral treatments for infection that is under control or as infection prophylaxis may be included in the trial);
- ✕ 2. Significant active or chronic bleeding event ≥ Grade 2 per Common Terminology Criteria for Adverse Events (CTCAE) v5.0, within 4 weeks prior to the first dose of study treatment; or
- ✕ 3. Uncontrolled acute and chronic liver disease (e.g., Child-Pugh score ≥10) OR has current unstable liver or biliary disease per investigator assessment defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, persistent jaundice, or cirrhosis. NOTE: Stable chronic liver disease (including Gilbert's syndrome or asymptomatic gallstones) is acceptable if participant otherwise meets entry criteria.
- ✕ 5. Uncontrolled hypertension, defined as repeated elevations of systolic blood pressure ≥140 mmHg or diastolic blood pressure ≥90 mmHg, that is not resolved at the time of the first dose of study treatment.
Where it's recruiting
Source: ClinicalTrials.gov · NCT06517875 · last updated 2026-04-20