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MITHRIDATE: Ruxolitinib Versus Hydroxycarbamide or Interferon as First Line Therapy in High Risk Polycythemia Vera

A Phase III, Randomised, Open-label, Multicenter International Trial Comparing Ruxolitinib With Either HydRoxycarbamIDe or Interferon Alpha as First Line ThErapy for High Risk Polycythemia Vera

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04116502
Acronym
MITHRIDATE
Enrollment
586
Registered
2019-10-04
Start date
2019-10-25
Completion date
2030-04-01
Last updated
2024-11-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Polycythemia Vera

Brief summary

The trial will be a phase III, randomised-controlled, multi-centre, international, open-label trial consisting of ruxolitinib versus best available therapy, where best available therapy is a choice of interferon alpha, any formulation permitted (IFN) or hydroxycarbamide (HC), and which will be elected by the Investigator prior to randomisation.

Detailed description

The trial will be a phase III, randomised-controlled, multi-centre, international, open-label trial consisting of ruxolitinib versus best available therapy, where best available therapy is a choice of interferon alpha, any formulation permitted (IFN) or hydroxycarbamide (HC), and which will be elected by the Investigator prior to randomisation. There will be no cross-over either between arm A and B or between therapies on Arm B HC and IFN will be provided as best available therapy, IFN can include standard of pegylated-interferon at Investigators discretion.

Interventions

DRUGRuxolitinib

10mg of ruxolitinib twice daily (bd)

Via standard hospital mechanisms

DRUGInterferon-Alpha

Any formulation, via standard hospital mechanisms

Sponsors

Novartis
CollaboratorINDUSTRY
MPN Voice
CollaboratorUNKNOWN
French National Cancer Institute (Institut National Du Cancer - France)
CollaboratorUNKNOWN
University of Birmingham
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Population: High risk PV defined as WBC \>11 x 10\^9/l\* AND at least ONE of the following * Age \>60 years * Prior thrombosis or haemorrhage * Platelet count \>1000 x 10\^9/l\* * Hypertension or diabetes requiring pharmacological therapy (\*At any time since diagnosis) Inclusion Criteria: 1. Patient ≥18 years of age 2. Diagnosis of PV meeting the WHO criteria within the past 15 years 3. Meets criteria of high risk\* PV (see above for specific population) 4. Patients must have a screening haemoglobin of \>8g/dl 5. Patients may have received antiplatelet agents and venesection 6. Patients may have received ONE cytoreductive therapy for PV less than 10 years (BUT they should not be resistant or intolerant to that therapy) 7. Able to provide written informed consent

Exclusion criteria

1. Diagnosis of PV \> 15 years previously 2. Absence of JAK-2 mutation 3. Patients with any contraindications to any of the investigational medical products 4. Treatment with \>1 cytoreductive therapy OR a cytoreductive treatment duration exceeding 10 years OR resistance/intolerance to that therapy 5. Active infection including Human Immunodeficiency Virus (HIV), hepatitis B, hepatitis C, autoimmune hepatitis, Tuberculosis 6. Pregnant or lactating patients (Women of childbearing potential must have a negative urine or blood Human Chorionic Gonadotropin pregnancy test prior to trial entry) 7. Patients with lactose allergies, hypersensitivities, or rare hereditary problems, of galactose intolerance, total lactase deficiency or glucose- galactose malabsorption 8. Patients with uncontrolled neuropsychiatric disorders 9. Patients with uncontrolled cutaneous cancers 10. Patients and partners not prepared to adopt highly effective contraception measures (if sexually active) whilst on treatment and for at least 6 months after completion of study medication 11. ECOG Performance Status Score ≥ 3 12. Uncontrolled rapid or paroxysmal atrial fibrillation, uncontrolled or unstable angina, recent (within the last 6 months) myocardial infarction or acute coronary syndrome or any clinically significant cardiac disease \> NYHA ( New York Heart Association) Class II 13. Patients who have transformed to myelofibrosis 14. Previous treatment with ruxolitinib 15. Previous (within the last 12 months) or current platelet count \<100 x 109/L or neutrophil count \< 1 x 109/L not due to therapy 16. Inadequate liver function as defined by ALT/AST \>2.0 x ULN 17. Inadequate renal function as defined by eGFR \< 30 mls/min 18. Unable to give informed consent Additional

Design outcomes

Primary

MeasureTime frameDescription
Event Free Survival (EFS)the time from randomisation to the date of the first major thrombosis/haemorrhage, death,transformation to Myelodysplastic Syndromes, Acute Myeloid Leukaemia or Post-polycythemia Vera Myelofibrosis, if within the ~3 year trial periodEvent Free Survival

Secondary

MeasureTime frameDescription
Major haemorrhageOccurring while on treatment (over 3 years)As defined in the protocol
Major thrombosisOccurring while on treatment (over 3 years)As defined in the protocol, combined and split to venous and arterial
Transformation to PPV-MFOccurring while on treatment (over 3 years)Transformation to PPV-MF
Transformation to MDS and/or AMLOccurring while on treatment (over 3 years)Transformation to MDS and/or AML
Complete Haematological remission (CHR)1 year post-treatmentAs defined by ELN response criteria at 1 year
Symptom burden/Quality of life (MPN-SAF)Questionnaires collected at baseline, weeks 12, 26, 39, 55, months 15, 18, 24, 30 and 36As measured via MPN-SAF
Symptom burden/Quality of life (MDASI)Questionnaires collected at baseline, weeks 12, 26, 39, 55, months 15, 18, 24, 30 and 36As measured via MDASI
Symptom burden/Quality of life (EQ-5D)Questionnaires collected at baseline, weeks 12, 26, 39, 55, months 15, 18, 24, 30 and 36As measured via EQ-5D
Health economicsAt the end of the trial (trial duration of approximately 8 years)Including cost utility and cost effectiveness analyses as defined by the protocol (e.g. QALYs)
Peripheral blood JAK2 V617F allele burdenAt baseline and annually throughout the trial (from baseline until approximately 3 years post-randomisation)According to ELN response criteria
Rates of discontinuationFrom treatment prior to protocol defined 3 yearsTrial discontinuation
Rate and severity of adverse eventsContinuous throughout the trial (from randomisation until approximately 3 years post-randomisation))collected according to CTCAE version 4.0 and the MITHRIDATE protocol
Spleen responseResponse at 1 year post randomisationin patients with splenomegaly
Time free from venesectionDefined as the mean time between venesections while on trial treatment (treatment duration of 3 years)Time free from venesection
Secondary malignancyOccurring throughout the trial (from randomisation until approximately 3 years post-randomisation)Malignancy independent to the original diagnosis
Change in QRisk scoreCollected at baseline and years 1, 2 and 3Change in QRisk score

Other

MeasureTime frameDescription
Impact of treatment on molecular signatures of diseaseOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)Impact of treatment on molecular signatures of disease (as analysed by the WIMM in Oxford)
Clonal involvementOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)within the stem/progenitor cell compartment (as analysed by the WIMM in Oxford)
Reduction of peripheral blood allele burdenOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)of other disease-association mutations (as analysed by the WIMM in Oxford)
Assessment of the prevalence of clonality markers for haematological diseaseOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)and any change over time (as analysed by the WIMM in Oxford)
Cardiac eventOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)(angina, acute coronary syndrome, acute MI; arrhythmia)
Pulmonary hypertensionOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)Pulmonary hypertension as assessed clinically
Coronary interventionOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)e.g. angiogram, angioplasty, CABG
Deterioration in cardiac functionOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)e.g. LVEF% on ECHO/MUGA and/or NYHA classification
Cerebrovascular eventOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)TIA, haemorrhagic CVA, non-haemorrhagic CVA
Arterial vascular eventOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)peripheral vascular disease: claudication, carotid stenosis
Venous thrombosisOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)including DVT, PE, Cerebral, splanchnic, other
Pregnancy lossOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)Pregnancy loss
Thrombosis biomarkersOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)Correlation of thrombosis biomarkers with clinical thrombosis events
Progression of marrow fibrosisOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)Progression of marrow fibrosis (bone marrow collected and analysed at the Weatherall Institute of Molecular Medicine (WIMM) in Oxford
Clonal evolutionOccurring throughout the trial (from randomisation to approximately 3 years post-randomisation)(acquisition of additional mutations, as analysed by the WIMM in Oxford)

Countries

United Kingdom

Contacts

Primary ContactAlex Hainsworth
mithridate@trials.bham.ac.uk+44(0)121 414 2535

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026