E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Primary Immune Thrombocytopenia |
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E.1.1.1 | Medical condition in easily understood language |
Primary immune thrombocytopenia is a autoimmune disease which is characterized by an isolated low platelet count (thrombocytopenia) and the absence of other causes of thrombocytopenia. |
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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 | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10043554 |
E.1.2 | Term | Thrombocytopenia |
E.1.2 | System Organ Class | 10005329 - Blood and lymphatic system disorders |
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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 |
Demonstrate the clinical efficacy of rozanolixizumab in maintenance treatment in study participants with primary immune thrombocytopenia (ITP) |
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E.2.2 | Secondary objectives of the trial |
Assess the safety and tolerability of rozanolixizumab |
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Study participants who have consented can participate in the pharmacogenomics sub-study. |
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E.3 | Principal inclusion criteria |
-Study participant must be ≥18 years of age at the time of the Screening Visit -Study participant has a diagnosis of persistent (>3 months duration) or chronic (>12 months duration) primary immune thrombocytopenia (ITP) at the Screening Visit -Study participant has a documented intolerance or insufficient response to two or more appropriate standard of care ITP treatments prior to Screening -Study participants must have prior history of a response to a previous ITP therapy -If taking allowed drugs, study participant must be on stable doses during defined time periods prior to Baseline (Day 1) -Study participant has a documented history of low platelet count (<30x10^9/L) prior to Screening -Study participant has a platelet count measurement at Screening and at Baseline (Day 1) with an average of the two <30x10^9/L and no single count may be >35x10^9/L (using local laboratories) -Study participant has a current or history of a peripheral blood smear consistent with ITP -Study participants may be male or female: a. A male participant must agree to use contraception during the Treatment Period and for at least 3 months after the final dose of study treatment and refrain from donating sperm during this period b. A female participant is eligible to participate if she is not pregnant as confirmed by a negative serum pregnancy test and not planning to get pregnant during the participation in the study, not breastfeeding, and at least one of the following conditions applies: Not a woman of childbearing potential (WOCBP) OR A WOCBP who agrees to follow the contraceptive guidance during the Treatment Period and for at least 3 months after the dose of study treatment
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E.4 | Principal exclusion criteria |
-Participant has a history of arterial or venous thromboembolism (eg, stroke, transient ischemic attack, myocardial infarction, deep vein thrombosis or pulmonary embolism) within the 6 months prior to randomization or requires current anticoagulant treatment -Study participant has clinically significant bleeding that warrants immediate platelet adjustment (eg, menorrhagia with significant drop in hemoglobin) -Study participant has a known hypersensitivity to any components of the study medication or any other anti-neonatal Fc receptor (FcRn) medications -Study participant has evidence of a secondary cause of immune thrombocytopenia (clear association with other medical conditions, eg. untreated H. pylori infection, leukemia, lymphoma, common variable immunodeficiency, systemic lupus erythematosus, autoimmune thyroid disease or drug is induced), participant has a multiple immune cytopenia (eg, Evan's syndrome) -Study participant has a clinically relevant active infection (eg, sepsis, pneumonia, or abscess) in the opinion of the investigator, or had a serious infection (resulting in hospitalization or requiring parenteral antibiotic treatment) within 6 weeks prior to the first dose of investigational medicinal product (IMP) -Study participant with a known tuberculosis (TB) infection, at high risk of acquiring TB infection, or latent tuberculosis infection (LTBI), or current/history of nontuberculous mycobacterial infection (NTMBI) -Study participant has a history of a major organ transplant or hematopoietic stem cell/marrow transplant -Study participant has experienced intracranial bleed in the last 6 months prior to the Screening Visit -Study participant has a history of coagulopathy disorders other than ITP -Study participant has a Karnofsky Performance Status rating <60% at the Screening Visit -Study participant with current or medical history of immunoglobulin A (IgA) deficiency, or a measurement of IgA <50 mg/dL at the Screening Visit -Study participant has undergone a splenectomy in the 2 years prior to the Baseline Visit
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E.5 End points |
E.5.1 | Primary end point(s) |
Durable Clinically Meaningful Platelet Response of ≥50x10^9/L, for at least 8 out of 12 weeks during the last 12 weeks
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
During the last 12 weeks (Week 13 to Week 25) |
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E.5.2 | Secondary end point(s) |
1. Cumulative number of weeks with Clinically Meaningful Platelet Response of ≥50x10^9/L over the 24-week Treatment Period 2. Time to first Clinically Meaningful Platelet Response of ≥50x10^9/L: time from starting treatment to achievement of first response of ≥ 50x10^9/L 3. Clinically Meaningful Platelet Response of ≥50x10^9/L by Day 8 4. Response defined as platelet count ≥30x10^9/L and at least a 2-fold increase of the Baseline count confirmed on at least 2 separate occasions at two adjacent nominal visits at least 7 days apart, and absence of bleeding by visit 5. Time to first rescue therapy 6. Change from Baseline to Week 25 in ITP Patient Assessment Questionnaire (ITP-PAQ) Symptoms Score 7. Occurrence of treatment-emergent adverse events (TEAEs) 8. Occurrence of TEAEs leading to withdrawal of investigational medicinal product (IMP) (ie, study discontinuation)
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1.; 2.; 3. and 7. From Baseline during Treatment Period (up to Week 25) 4. Time from starting treatment to achievement of first response of ≥50x10^9/L (up to Week 25) 5. Baseline to Day 8 6. From Baseline during Treatment Period (up to Week 25) 7.; 8. From Baseline to end of Safety Follow-Up Period (up to Week 32)
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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 | Yes |
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 | Yes |
E.6.13.1 | Other scope of the trial description |
Tolerability, Immunogenicity |
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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 | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
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 | Yes |
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 | 4 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 45 |
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 |
Croatia |
Czechia |
France |
Georgia |
Greece |
Hungary |
Italy |
Japan |
Korea, Republic of |
Moldova, Republic of |
Netherlands |
Poland |
Romania |
Russian Federation |
Spain |
Taiwan |
Turkey |
Ukraine |
United Kingdom |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
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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last visit of the last subject (LVLS) |
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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 | 2 |
E.8.9.1 | In the Member State concerned months | 7 |
E.8.9.1 | In the Member State concerned days | 27 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 9 |
E.8.9.2 | In all countries concerned by the trial days | 15 |