| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Persistently aPL-positive patients with at least 1 of the following non-criteria manifestations:  aPL-nephropathy, skin ulcers and/or thrombocytopenia. |  
| Pacientes con anticuerpos antifosfolípidos (aFL) persistentes con al menos 1 de las siguientes manifestaciones que no cumplen los criterios de clasificación del SAFL: nefropatía por aFL, úlceras en la piel o trombocitopenia. |  | 
| E.1.1.1 | Medical condition in easily understood language | 
| Antiphospholipid Syndrom |  
| síndrome antifosfolípidos |  | 
| E.1.1.2 | Therapeutic area | Body processes [G] - Immune system processes [G12] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 18.0 |  
| E.1.2 | Level | PT |  
| E.1.2 | Classification code | 10002817 |  
| E.1.2 | Term | Antiphospholipid syndrome |  
| E.1.2 | System Organ Class | 10005329 - Blood and lymphatic system disorders |  | 
| 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 | 
| Safety and Tolerability of ALXN1007 |  
| Evaluar la seguridad y la tolerabilidad de ALXN1007 |  | 
| E.2.2 | Secondary objectives of the trial | 
| -Evaluate Pharmacokinetic parameters -Evaluate Pharmacodynamic effects
 -Assess Efficacy of ALXN1007
 |  
| -Evaluar los parámetros farmacocinéticos -Evaluar los efectos farmacodinámicos
 -Evaluar el efecto de ALXN1007
 |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| -Males or females age 18-75 years. 
 -Patient with persistent and clinically significant aPL profile
 
 -Patient must be willing and able to give written informed consent and comply with all study visits and procedures.
 |  
| - Hombres y mujeres de 18-75 años de edad. 
 - Pacientes con un perfil de aFL persistentes y clínicamente significativo.
 
 - Los pacientes deben estar dispuestos y ser capaces de dar su consentimiento informado por escrito y cumplir con todas las visitas y los procedimientos del estudio.
 |  | 
| E.4 | Principal exclusion criteria | 
| -Patients meeting the ACR classification criteria for systemic lupus erythematosus, systemic sclerosis or other systemic autoimmune diseases other than Primary APS. 
 -Patients experiencing an acute thrombosis or a Major Adverse Vascular Event (MAVE) within 12 weeks prior to first administration of study drug.
 
 -History of an uncontrolled thyroid disorder or abnormal Thyroid Stimulating Hormone (TSH) or free thyroxine (FT4), at screening.
 
 -Unresolved meningococcal disease.
 
 -Known hypersensitivity to human immunoglobulin proteins or excipients of ALXN1007.
 
 -Women who are pregnant or nursing.
 |  
| - Los pacientes que cumplan los criterios de clasificación de ACR para el lupus eritematoso sistémico, la esclerosis sistémica u otras enfermedades autoinmunes sistémicas distintas del SAFL primario. 
 - Los pacientes que experimenten una trombosis aguda o un acontecimiento vascular adverso importante dentro de las 12 semanas anteriores a la primera administración de la medicación del estudio.
 
 - Historial de trastorno de la tiroides no controlado o tirotropina (TSH) o tiroxina libre (FT4) anómalos en la selección.
 
 - Enfermedad meningocócica sin resolver.
 
 - Hipersensibilidad conocida a las proteínas de inmunoglobulina humana o excipientes de ALXN1007.
 
 - Las mujeres que estén embarazadas o en fase de lactancia.
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point |  | 
| E.5.2 | Secondary end point(s) | 
| Pharmacokinetic, pharmacodynamic and efficacy parameters |  
| farmacocinética, farmacodinámica y parámetros de eficacia |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point |  | 
| 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 | 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 | 2 | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.5.1 | Number of sites anticipated in the EEA | 12 | 
| 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 | 
| Brazil |  
| Canada |  
| France |  
| Italy |  
| Japan |  
| Spain |  
| United Kingdom |  
| United States |  | 
| 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 | 
| LVLS |  
| Ultima visita del último sujeto |  | 
| 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 | 6 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| 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 | 6 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |