E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
Myasthenia Gravis in patients who have generalized Muscle Weakness |
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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 | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10028417 |
E.1.2 | Term | Myasthenia gravis |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10028423 |
E.1.2 | Term | Myasthenia gravis-like syndrome |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
|
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLT |
E.1.2 | Classification code | 10071942 |
E.1.2 | Term | Myasthenia gravis and related conditions |
E.1.2 | System Organ Class | 100000004859 |
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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 evaluate the long-term safety and tolerability of ARGX-113 in acetylcholine receptor antibody (AChR-Ab) seropositive patients. |
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E.2.2 | Secondary objectives of the trial |
To evaluate the long-term safety and tolerability of ARGX-113 in the overall population (AChR-Ab seropositive and AChR-Ab seronegative patients). |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Patients will roll over in this trial only if they meet all of the following criteria:
1. Patients with the ability to understand the requirements of the trial, provide written informed consent, and can comply with the trial protocol procedures.
2. Patients who participated in trial ARGX-113-1704 and are eligible for roll over, as specified in the protocol.
Other more specific inclusion criteria are further defined in the protocol. |
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E.4 | Principal exclusion criteria |
Patients will not roll over in this trial if they meet any of the following criteria:
1. Patients who discontinued early from trial ARGX-113-1704 or patients who discontinued early from randomized treatment for pregnancy or rescue reasons or an (S)AE that might jeopardize the safety of the patient in that trial.
2. Pregnant and lactating women, and those intending to become pregnant during the trial or within 90 days after the last dosing. Women of childbearing potential (DEFINITION OF TERMS) should have a negative urine pregnancy test at SEB.
3. Male patients who are sexually active and do not intend to use effective methods of contraception (as mentioned above) during the trial or within 90 days after the last dosing or male patients who plan to donate sperm during the trial or within 90 days after the last dosing.
4. Patients with known hepatitis B virus (HBV), hepatitis C virus (HCV) or human immunodeficiency virus (HIV) seropositivity.
Other more specific exclusion criteria are further defined in the protocol. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Incidence and severity of AEs, serious adverse events (SAEs), vital signs, electrocardiogram (ECG) and laboratory assessments over the duration of the trial in AChR-Ab seropositive patients. |
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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) |
Incidence and severity of AEs, SAEs, vital signs, ECG and laboratory assessments over the duration of the trial in the overall population (AChR-Ab seropositive patients and AChR-Ab
seronegative patients).
|
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
over the duration of the trial (up to maximum 3 years) |
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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 | Yes |
E.6.13.1 | Other scope of the trial description |
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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 | 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 | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 22 |
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 |
Canada |
Georgia |
Japan |
Russian Federation |
Serbia |
United States |
Belgium |
Denmark |
Germany |
Hungary |
Italy |
Netherlands |
Poland |
Czechia |
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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 | 3 |
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 | 1 |
E.8.9.2 | In all countries concerned by the trial days | 0 |