E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Paroxysmal Nocturnal Haemoglobinuria |
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E.1.1.1 | Medical condition in easily understood language |
PNH is a rare blood condition where blood cells are prone to be attacked by part of the body’s immune system. |
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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 | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10034042 |
E.1.2 | Term | Paroxysmal nocturnal haemoglobinuria |
E.1.2 | System Organ Class | 10038359 - Renal and urinary 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 |
The primary objective of this study is to demonstrate comparable clinical efficacy of SB12 and Soliris®, by evaluating the lactate dehydrogenase (LDH) in subjects with paroxysmal nocturnal haemoglobinuria (PNH). |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives are: • To evaluate the efficacy of SB12 compared to Soliris® by - LDH profile over time - Number of units of packed red blood cells (pRBCs) transfused • To evaluate the safety and tolerability of SB12 compared to Soliris® • To evaluate the pharmacokinetic (PK) of SB12 compared to Soliris® • To evaluate the immunogenicity of SB12 compared to Soliris® • To evaluate the pharmacodynamic (PD) of SB12 compared to Soliris® |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects must meet all of the following criteria to be eligible for the study: 1. Male or female aged 18 or older at the time of signing the informed consent form (ICF), if local regulations are different in this regard, follow the local regulations. 2. Documented diagnosis of PNH. 3. Presence of the PNH white blood cell (WBC) clone ≥ 10% by high-sensitivity flow cytometry at Screening. 4. Documented LDH level ≥ 1.5 × upper limit of normal (ULN) at Screening. 5. History of transfusion for anaemia within 12 months prior to Screening or having PNH-related symptoms (e.g., fatigue, haemoglobinuria, abdominal pain, chest pain, shortness of breath [dyspnoea], dysphagia, erectile dysfunction) at Screening. 6. All subjects must be vaccinated against Neisseria meningitidis within 3 years prior to or on Day 1 in accordance with current local guidelines or Soliris® Summary of Product Characteristics (SmPC) to reduce the risk of meningococcal infection. 7. Female subjects who are not pregnant or nursing at Screening and on initiation of study drug (Day 1) and who are not planning to become pregnant from Screening until 5 months after the last dose of study drug. 8. Subjects and their partners of childbearing potential (female or male) who agree to use of a highly effective contraceptive method (e.g., established use of oral, injected or implanted hormonal contraceptive, placement of an intrauterine device or intrauterine system, male sterilisation or true abstinence) from Screening until 5 months after the last dose of study drug. 9. Subjects must be able to understand the implications of taking part in the study and be willing to follow the study instructions and requirements fully. 10. Subjects must be able to provide informed consent, which must be obtained prior to any study related procedures. |
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E.4 | Principal exclusion criteria |
Subjects meeting any of the following criteria are not eligible for the study: 1. Previous treatment with a complement pathway inhibitor (including eculizumab). 2. Known hypersensitivity to the investigational product (IP) or any of the ingredients or excipients of the IP. 3. Known contraindication/hypersensitivity for meningococcal vaccine or the antibiotic to be used in the study. 4. Abnormal haematological parameters at Screening defined as the following: a. Absolute neutrophil count (ANC) ≤ 500/mm3 b. Platelet count < 70,000/mm3 5. History of meningococcal disease. 6. History of bone marrow transplantation. 7. History of serious thrombotic event (e.g., stroke, myocardial infarction, pulmonary embolism, etc.). 8. Known or suspected active bacterial, virus, fungal infection within 30 days prior to initiation of study drug (Day 1). 9. Known history of human immunodeficiency virus (HIV) infection or have positive results at Screening. 10. Concomitant use of any of the following medications is prohibited if the following conditions apply. a. Erythropoietin, systemic corticosteroids, low-molecular-weight heparins, iron supplements, and androgen therapy that has not been on a stable dose for at least 4 weeks prior to initiation of study drug (Day 1). b. Warfarin with an unstable international normalized ratio (INR) for at least 4 weeks prior to initiation of study drug (Day 1). c. Cyclosporine that has not been on a stable dose for at least 8 weeks prior to initiation of study drug (Day 1). 11. Subjects who have received or participated in another investigational drug, device, or procedures within 30 days or within 5 half-lives of that IP prior to Screening, whichever is greater. 12. History of malignancy within 5 years prior to Screening, except for curatively treated carcinoma in situ of uterine cervix, basal cell carcinoma of the skin, or squamous cell carcinoma of the skin. 13. Any other cardiac, hepatic, immunologic, pulmonary, rheumatoid disease, other conditions causing rise in LDH (e.g., tumours, muscular dystrophies, liver and bile disease etc.), or the disorder which, at the discretion of the Investigator, will put the subjects at risk if they are enrolled. 14. Other unspecified reasons that, at the discretion of the Investigator or Sponsor, make the subjects unsuitable for enrolment. |
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E.5 End points |
E.5.1 | Primary end point(s) |
• LDH level (U/L) at Week 26 • Area under the effect curve (AUEC) of LDH from Week 14 to Week 26 and from Week 40 to Week 52 |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Efficacy endpoints • LDH profile over time • Number of units of pRBCs transfused throughout the study duration for each period Safety endpoints • Incidence of adverse events (AEs) and serious AEs (SAEs) • Incidence of infection-related AEs - Meningococcal infection - Other systemic infections • Incidence of infusion-related reactions (IRRs) Safety of subjects will be monitored by 12-lead electrocardiogram (ECG), vital sign assessment, and physical examination. Haematological, biochemical, and urinalysis laboratory parameters will be also measured. PK endpoint • Concentration prior to infusion (trough serum concentration [Ctrough]) Immunogenicity endpoints • Incidence of anti-drug antibodies (ADAs) • Incidence of neutralising antibodies (NAbs) PD endpoint • Terminal complement activity |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Efficacy: end of study Safety: end of study PK endpoint: at Weeks 0 (Day 1), 2, 4, 6, 10, 14, 18, 22, 26, 28, 30, 32, 36, 40, 44, 48, and 52 Immunogenicity endpoints: ADAs at Weeks 0 (Day 1), 2, 4, 6, 10, 14, 18, 22, 26, 28, 30, 32, 36, 40, 44, 48, 52, and end of study (EOS)/early termination (ET) NAbs at Weeks 0 (Day 1), 2, 4, 6, 10, 14, 18, 22, 26, 28, 30, 32, 36, 40, 44, 48, 52, and EOS/ET PD endpoint: at Weeks 0 (Day 1), 2, 4, 6, 10, 14, 26, 28, 30, 32, 36, 40, and 52 |
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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 | 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 |
To demonstrate biosimilarity of SB12 to the comparator |
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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 | No |
E.8.1.6 | Cross over | Yes |
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 | 5 |
E.8.5 | The trial involves multiple Member States | No |
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 |
China |
India |
Korea, Republic of |
Malaysia |
Mexico |
Taiwan |
Thailand |
Romania |
Turkey |
Ukraine |
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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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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 | 8 |
E.8.9.1 | In the Member State concerned days | 5 |
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 | 8 |
E.8.9.2 | In all countries concerned by the trial days | 5 |