E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
The myeloproliferative disorders essential thrombocythaemia (ET) and polycythaemia vera (PV). |
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E.1.1.1 | Medical condition in easily understood language |
PV and ET are chronic diseases. ET causes people to produce too many blood cells called platelets and PV causes too many platelets and red cells to be made. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Blood and lymphatic diseases [C15] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10043550 |
E.1.2 | Term | Thrombocythemia |
E.1.2 | System Organ Class | 100000004851 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10036058 |
E.1.2 | Term | Polycythemia |
E.1.2 | System Organ Class | 100000004851 |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
We wish to compare the ability of two different treatments to control abnormalities of blood counts in patients with essentail thrombocythaemia and polycythaemia vera who are classed as at high risk of blood clots. The two treatments are hydroxyurea and Pegylated Interferon Alfa-2a (PEGASYS). |
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E.2.2 | Secondary objectives of the trial |
Secondary objectives of the trial are: • To compare the toxicity, safety and tolerability of therapy in patients • To compare the rates of partial control of blood counts • To compare specific pre-defined toxicity and tolerance of therapy and use a tool to assess these and patient symptoms. • To compare the impact of therapy on key biomarkers of the disease activity and outcomes including JAK2-V617F a mutation or genetic change commonly found, the proportion of diseased cells, the appearance of the bone marrow, and cytogenetic or chromosomal abnormalities • To measure the occurence of serious late ccomplications of these diseases such as the development of leukaemia • To estimate incidence of major blood clotting (defined as cardiovascular death, myocardial infarction, stroke, transient ischemic attack, pulmonary embolism, Budd Chiari syndrome, deep vein thrombosis, and any other clinically relevant thrombotic event) during therapy. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- A diagnosis (<3 years prior to entry in the sudy) of Essential Thrombocythaemia (ET) or Polycythaemia Vera (PV) made in accordance with the WHO (2008) criteria. - Never treated with cytoreductive drugs except hydroxyurea for up to 3 months maximum (phlebotomy, aspirin allowed, anagrelide allowed). - Age: > 18 years (no upper limit). - Ability and willingness to comply with all study requirements. - Signed informed consent to participate in this study. - Willing to participate in associated correlative science biomarker study. - Serum creatinine < 1.5 x upper limit of normal. - AST and ALT < 2 x upper limit of normal. - Total Bilirubin within normal limits. - No known PNH (paroxysmal nocturnal hemoglobinuria) clone. - No concurrent hormonal oral contraceptive use. - Patients must have high risk disease as defined below: High risk PV ANY ONE of the following: 1)age >60 years; 2)Previous documented thrombosis, erythromelalgia or migraine (severe, recurrent, requiring medications, and felt to be secondary to the MPN) either after diagnosis or within 10 years before diagnosis and considered to be disease related; 3)significant splenomegaly (>5 cm below the left costal margin) or symptomatic splenomegaly (splenic infarcts or requiring analgesia); 4)platelets > 1000 x 109/L; 5)diabetes or hypertension requiring pharmacological therapy for > 6 months. High risk ET ANY ONE of the following: 1)age > 60 years; 2)platelet count > 1500 x 109/L; 3)previous documented thrombosis, erythromelalgia or migraine headaches (severe, recurrent, requiring medications, and felt to be secondary to the MPN) either after diagnosis or within 10 years before diagnosis and considered to be disease related; 4)previous hemorrhage related to ET; 5)Diabetes or hypertension requiring pharmacological therapy for > 6 months. |
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E.4 | Principal exclusion criteria |
- Any contraindications to Pegylated interferon or Hydroxyurea (listed below). - Presence of any life-threatening co-morbidity. - History of active substance or alcohol abuse within the last year. - Subjects who are pregnant, lactating or of reproductive potential and not practicing an effective means of contraception. - History of psychiatric disorder (e.g. depression). - History of autoimmune disorder (e.g. hepatitis). - Hypersensitivity to IFN-α HIV, HBV, or systemic infection. - Evidence of severe retinopathy (e.g. CMV retinitis, macular degeneration) or clinically relevant ophthalmological disorder (e.g. due to diabetes mellitus or hypertension). - History or other evidence of decompensated liver disease. - Splanchnic vein thrombosis (includes Budd-Chiari, portal vein, splenic and mesenteric thrombosis). - History or other evidence of chronic pulmonary disease associated with functional limitation. - Thyroid dysfunction not adequately controlled. - Any investigational drug <6 weeks prior to the first dose of study drug. - Neutrophil count <1.5 x 109/L. - JAK2 exon 12 mutation. - Patients should not meet criteria for post PV or post ET-MF - No previous exposure to any formulation of pegylated interferon. - Subjects with any other medical condition, which in the opinion of the investigator would compromise the results of the study by deleterious effects of treatment. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint is the achievement of complete haematological response (CR) as defined by the European LeukemiaNet (ELN) criteria listed below: Criteria for Response in Essential thrombocythemia (ET): o Platelet count </= 400 x 109/L AND o No disease-related symptoms* AND o Normal spleen size on imaging AND o WBC </= 10 x 109/L Criteria for Response in Polycythemia Vera (PV) o Hematocrit <0.45 without phlebotomy AND o Platelet count < 400 x 109/L AND o WBC > 10 x 109/L AND o Normal spleen size on imaging AND o No disease related symptoms* |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Patients will be treated for 12 months (with a 3 month confirmation period for a total of up to 15 months) to achieve Complete Response (CR) or Partial Response (PR). Those not achieving at least a confirmed PR will stop trial therapy. Length of therapy for responders will be determined by subject’s entrance onto the study. |
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E.5.2 | Secondary end point(s) |
The secondary end points are: o Evaluate the toxicity and tolerability of therapy in the study populations. o Ability of therapy to achieve a partial response (PR) by LeukemiaNet criteria. o Evaluate specific pre-defined toxicity and tolerance of therapy through a sequential structured symptom assessment package of patient reported outcome instruments. o Observed survival and incidence of development of a myelodysplastic disorder, myelofibrosis, or leukemic transformation. o Observed incidence of major cardiovascular events (defined as cardiovascular death, myocardial infarction, stroke, transient ischemic attack, pulmonary embolism, Budd Chiari syndrome, deep vein thrombosis, and any other clinically relevant thrombotic event) after therapy. o Measure the impact of therapy on key biomarkers of the disease(s) – JAK2-V617F, hematopoietic cell clonality in platelets and granulocytes in females, bone marrow histopathology, and cytogenetic abnormalities. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Patients will be treated for 12 months and evaluated regularly during this time. Those not achieving at least a confirmed PR will stop therapy at the end of 12 months of treatment. Length of therapy for responders will be determined by subject’s entrance onto the study. The last subjects to enter the study will continue for at least 24 months and the first subjects entered onto the study could participate for up to 48 months (assuming toxicity or loss of response does not intervene). |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 15 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Belgium |
Canada |
France |
Italy |
Netherlands |
Sweden |
United Kingdom |
United States |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 4 |
E.8.9.2 | In all countries concerned by the trial months | 6 |
E.8.9.2 | In all countries concerned by the trial days | 0 |