| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
| treatment of anemic myelofibrosis patients | 
 
 
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| E.1.1.1 | Medical condition in easily understood language  | 
| myelofibrosis patients with anemia | 
 
 
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| E.1.1.2 | Therapeutic area  | Diseases [C] - Cancer [C04] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 20.0 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10074692 | 
 
| E.1.2 | Term  | Post essential thrombocythaemia myelofibrosis | 
 
| E.1.2 | System Organ Class  | 100000004864 | 
 
 
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| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 20.0 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10074691 | 
 
| E.1.2 | Term  | Post polycythaemia vera myelofibrosis | 
 
| E.1.2 | System Organ Class  | 100000004864 | 
 
 
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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  | 
| To determine the spleen length response rate at Week 24 | 
 
 
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| E.2.2 | Secondary objectives of the trial  | 
- To evaluate safety
 - To determine the spleen length response rate at Week 48
 - To evaluate the effect of ruxolitinib on spleen length
 - To evaluate the effect of ruxolitinib on symptoms
 - To evaluate the effect of ruxolitinib on Patient Global Impression of Change (PGIC)
 - To evaluate the effect of ruxolitinib on transfusion requirements | 
 
 
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| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
- Male or female patients aged ≥ 18 years of age.
 - Patients must be diagnosed with PMF, according to the 2016 revised International Standard Criteria (Arber et al, 2016), PPV MF or PET-MF (Barosi 2008), irrespective of JAK2 mutation status.
 - Patients with palpable splenomegaly that is equal to or greater than 5 cm below the left costal margin.
 - Patients with a hemoglobin less than 10 g/dL
 - Patients with a history of transfusions must have a documented transfusion record in the previous 12 weeks to baseline.
 - Patients with a peripheral blood blast percentage count of < 10%.
 
 Additional inclusion criteria as per full protocol may apply. | 
 
 
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| E.4 | Principal exclusion criteria | 
- Patients with prior treatment with any JAK1 or JAK2 inhibitor.
 - Patients with inadequate bone marrow reserve at baseline visit asdemonstrated by at least one of the following:
  ANC that is ≤ 1,000/μL.
  Platelet count that is <50,000/μL without the assistance of growth factors, thrombopoietic factors or platelet transfusions.
  Hemoglobin count that is ≤ 6.5 g/dL despite transfusions.
 - Patients with severely impaired renal function
 - Patients with inadequate liver function
 - Patients being treated concurrently with a strong (potent) systemic inhibitor or inducer of CYP3A4 at the time of Screening
 - Acute viral hepatitis or active chronic hepatitis B or C infection.
 - History of progressive multifocal leuko-encephalopathy (PML)
 
 Additional exclusion criteria as per full protocol may apply. | 
 
 
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| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Proportion of patients achieving a 50% reduction in spleen length at Week 24 | 
 
 
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| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
 | 
| E.5.2 | Secondary end point(s) | 
- Frequency and severity of adverse events and serious adverse events and AEs leading to discontinuations.
 - Proportion of patients achieving a 50% reduction in spleen length at week 48
 - Percent change from baseline in spleen length over time
 - Summary of the Modified MFSAF v2.0 and MF-7 over time
 - PGIC at each visit where measured
 - Summary of transfusions over time | 
 
 
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| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
- Week 48
 - Week 48
 - Week 48
 - Week 48
 - Week 48
 - Week 48
 
 | 
 
 
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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 |  No  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  Yes  | 
| E.6.6 | Pharmacokinetic |  No  | 
| E.6.7 | Pharmacodynamic |  Yes  | 
| 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) |  Yes  | 
| E.7.3 | Therapeutic confirmatory (Phase III) |  No  | 
| E.7.4 | Therapeutic use (Phase IV) |  No  | 
| E.8 Design of the trial | 
| E.8.1 | Controlled |  No  | 
| E.8.1.1 | Randomised |  No  | 
| 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) |  No  | 
| E.8.2.2 | Placebo  |  No  | 
| E.8.2.3 | Other |  No  | 
| E.8.2.4 | Number of treatment arms in the trial | 1 | 
| 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 | 3 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 18 | 
| 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 | 
| Austria | 
 
| Belgium | 
 
| Bulgaria | 
 
| Canada | 
 
| Chile | 
 
| Germany | 
 
| Greece | 
 
| Hungary | 
 
| Italy | 
 
| Japan | 
 
| Russian Federation | 
 
| Spain | 
 
| Turkey | 
 
 
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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
                     | 
| The end of the study (last patient last visit) will occur after completion of the last follow up visit of the last patient on treatment with ruxolitinib. | 
 
 
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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 | 1 | 
| E.8.9.1 | In the Member State concerned months | 11 | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial years | 1 | 
| E.8.9.2 | In all countries concerned by the trial months | 11 |