E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Warm antibody autoimmune hemolytic anemia (wAIHA) |
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E.1.1.1 | Medical condition in easily understood language |
Autoimmune hemolytic anemia (AIHA) is an acquired disorder manifested by autoantibody- mediated red blood cell (RBC) destruction. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
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 | 10003825 |
E.1.2 | Term | Autoimmune hemolytic anemia |
E.1.2 | System Organ Class | 100000004851 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective of this study is: • To evaluate the long-term safety of fostamatinib in subjects with warm antibody autoimmune hemolytic anemia (wAIHA) |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives of this study are: • To compare the proportion of subjects with subjects with wAIHA who achieve a durable hemoglobin response between those who had been randomized to either fostamatinib or placebo in the parent study • To estimate the durability of response in subjects receiving fostamatinib for wAIHA • To assess steroid use in subjects with wAIHA treated with fostamatinib. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Subject must be willing and able to give written informed consent by signing an IRB approved Informed Consent Form prior to undergoing any study-specific procedures. 2. Subject must have completed all 24 weeks of participation in the study C-935788-057. 3. Female subjects must be either post-menopausal for at least 1 year or surgically sterile; or, if of childbearing potential, must not be pregnant or lactating and must agree to use a highly effective method of birth control throughout the duration of the trial and for 30 days following the last dose. Acceptable methods of birth control are defined as: hormonal contraception (pill, injection or implant) used consistently for at least 30 days prior to baseline an intrauterine device (IUD), or intrauterine hormone-releasing system (IUS), or true abstinence (i.e. abstinence is in line with the preferred and usual lifestyle of the subject). 4. In the investigator’s opinion, the subject has the ability to understand the nature of the study and any hazards of participation and to communicate satisfactorily with the investigator. |
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E.4 | Principal exclusion criteria |
1. Any subject who discontinued participation in Study C-935788-057 prior to Week 24. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Safety Endpoints: •Changes Incidence, frequency, seriousness, and severity of adverse events that occurred during the current study. •Change from baseline in blood pressure over time •Change from baseline in absolute neutrophil count (ANC) over time •Change from baseline in liver function tests (i.e., alanine aminotransferase [ALT], aspartate aminotransferase [AST]), total bilirubin, direct and indirect bilirubin) and selected laboratory test results over time •Categorical change from baseline in laboratory values per CTCAE v5.0 criteria for ANC, ALT, AST, total bilirubin •Change from baseline to worst post-baseline value in the current study •Change from baseline to post-baseline value in current study.
Efficacy Endpoints: •Endpoints had been listed on Table 2 of Protocol. No distinction is made between primary and secondary efficacy endpoints. To facilitate defining the endpoints noted in Table 2, observation periods are defined in Table 5 and endpoint parameters in Table 6.
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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) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | Yes |
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 | 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
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 19 |
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 |
Australia |
Georgia |
Serbia |
Austria |
Belarus |
Belgium |
Bulgaria |
Canada |
Czechia |
Germany |
Italy |
Netherlands |
Norway |
Russian Federation |
Spain |
Ukraine |
United Kingdom |
United States |
France |
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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 | 4 |
E.8.9.1 | In the Member State concerned months | 0 |
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 | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |