E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Hemophilia A with anti factor VIII |
Emofilia A congenita con inibitori all’FVIII |
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E.1.1.1 | Medical condition in easily understood language |
Hemophilia A with anti factor VIII |
Emofilia A congenita con inibitori all’FVIII |
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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 | LLT |
E.1.2 | Classification code | 10053751 |
E.1.2 | Term | Hemophilia A with anti factor VIII |
E.1.2 | System Organ Class | 100000004850 |
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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 perioperative hemostatic efficacy of BAX 802 in male subjects with CHA with inhibitors to human factor VIII (hFVIII) undergoing major or minor elective surgical, dental, or other invasive procedures as determined by the Global Hemostatic Efficacy Assessment (GHEA) score. |
Valutare l’efficacia emostatica peri-operatoria di BAX 802 in soggetti di sesso maschile affetti da CHA con inibitori al fattore VIII umano (human factor VIII, hFVIII) sottoposti a procedure chirurgiche elettive, dentali o ad altre procedure invasive di entità maggiore o minore, in base al punteggio basato sulla Valutazione globale dell’efficacia emostatica (Global Hemostatic Efficacy Assessment, GHEA). |
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E.2.2 | Secondary objectives of the trial |
1. To determine the safety of BAX 802 used in the perioperative setting 2. To determine the intra- and postoperative and overall perioperative blood loss at the end of surgery, compared to the estimated volume of expected average and maximum blood loss in a comparable healthy individual as predicted preoperatively by the investigator/surgeon 3. To determine the daily and total weight-adjusted administration of BAX 802 per subject 4. To determine the blood product utilization 5. To determine the occurrence of bleeding episodes during the intra- and postoperative periods and additional need for surgical intervention 6. To evaluate any unrelated bleeding episodes in the postoperative period. |
1. Determinare la sicurezza di BAX 802 utilizzato in ambito peri-operatorio 2. Determinare la perdita di sangue intra- e post-operatoria e quella peri-operatoria complessiva al termine dell’intervento chirurgico, rispetto al volume stimato della perdita di sangue media e massima stimata in un individuo sano di confronto in base a quanto previsto in fase pre-operatoria dallo sperimentatore/dal chirurgo 3. Determinare la somministrazione quotidiana e totale ponderata di BAX 802 per soggetto 4. Determinare l’utilizzo degli emoderivati 5. Determinare la comparsa di episodi emorragici durante i periodi intra- e post-operatori e l’ulteriore necessità di ricorso all’intervento chirurgico 6. Valutare qualsiasi episodio emorragico non correlato nel periodo post-operatorio
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Subject is male and ≥ 18 to ≤ 65 years old at the time of screening 2. Subject has provided signed informed consent 3. Subject has severe (FVIII level < 1%) or moderately severe (FVIII level ≤ 2%) CHA with inhibitors to human FVIII, as tested at screening at the central laboratory 4. Subject requires elective surgery or other invasive procedures 5. Subject is not currently receiving or has recently received (< 30 days) ITI therapy 6. Subject has a Karnofsky performance score of ≥ 60 7. Subject is human immunodeficiency virus negative (HIV-); or HIV+ with stable disease and CD4+ count ≥ 200 cells/mm3 at screening 8. Subject is hepatitis C virus negative (HCV-) by antibody or polymerase chain reaction (PCR) testing; or HCV+ with chronic stable hepatitis disease 9. Subject is willing and able to comply with the requirements of the protocol. |
1. Il soggetto è maschio e di età compresa fra 18 e 65 anni al momento dello screening. 2. Il soggetto ha fornito un consenso informato firmato. 3. Il soggetto presenta CHA grave (livello FVIII < 1%) o moderatamente grave (livello FVIII ≤ 2%) con inibitori all’FVIII umano, come verificato allo screening presso il laboratorio centrale. 4. Il soggetto richiede intervento chirurgico elettivo o altre procedure invasive. 5. Il soggetto non sta attualmente ricevendo o ha ricevuto di recente (< 30 giorni) terapia di induzione dell’immunotolleranza (immune tolerance induction, ITI). 6. Il soggetto presenta uno stato prestazionale di Karnofsky ≥ 60. 7. Il soggetto è negativo al virus dell’immunodeficienza umana (HIV-) o è HIV+ con malattia stabile e conta CD4+ ≥ 200 cellule/mm3 allo screening. 8. Il soggetto è negativo al virus dell’epatite C (HCV-) in base al test anticorpale o della reazione a catena della polimerasi (polymerase chain reaction, PCR) o è HCV+ con epatite cronica stabile. 9. Il soggetto intende ed è in grado di attenersi ai requisiti previsti dal protocollo. |
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E.4 | Principal exclusion criteria |
1. The subject requires emergency surgery 2. The subject’s weight is < 35 kg or > 120 kg 3. Clinically symptomatic liver disease (eg, ≥ 5 X upper limit of normal alanine aminotransferase [ALT], as confirmed by central laboratory at screening, clinical evidence of portal hypertension, severe hypoalbuminemia or a documented prothrombin time/international normalized ratio [PT/INR] > 1.5) 4. Clinically symptomatic renal disease (serum creatinine > 2.0 mg/dL), as confirmed by central laboratory at screening 5. Anti-porcine inhibitor > 10 Bethesda units (BU) prior to surgery 6. Platelet count < 100,000/μL 7. Subject has another active coagulation disorder, other than hemophilia A, as per the medical history 8. Planned use of α-interferon with or without ribavarin for HCV infected patients or planned use of a protease inhibitor for HIV-infected patients. Patients currently taking any of these medications for ≥ 30 days are eligible 9. Known hypersensitivity to rpFVIII, or hamster or murine proteins 10. Subject has been exposed to an IP within 30 days prior to enrollment or is scheduled to participate in another clinical study involving an IP or investigational device during the course of this study 11. Unable to tolerate quantity of blood to be drawn for protocol procedures 12. Subject is a family member or employee of the investigator |
1. Il soggetto necessita di intervento chirurgico urgente. 2. Il peso del soggetto è < 35 kg o > 120 kg. 3. Epatopatia clinicamente sintomatica (ad es. alanina aminotransferasi [ALT] ≥ 5 X il limite superiore della norma, in base ai valori confermati dal laboratorio centrale allo screening, evidenza clinica di ipertensione portale, grave ipoalbuminemia o tempo di protrombina documentato/rapporto internazionale normalizzato [prothrombin time, PT/international normalized ratio, INR] > 1,5). 4. Malattia renale clinicamente sintomatica (creatinina sierica > 2,0 mg/dl), in base ai valori confermati dal laboratorio centrale allo screening. 5. Inibitore anti-suino > 10 unità Bethesda (Bethesda units, BU) prima dell’intervento chirurgico. 6. Conta piastrinica < 100.000/μl. 7. Il soggetto presenta un’altra patologia della coagulazione attiva, diversa dall’emofilia A, in base alla sua anamnesi medica. 8. Uso programmato di interferone α con o senza ribavarina per i pazienti con HCV oppure uso programmato di un inibitore della proteasi per pazienti con HIV. I pazienti che attualmente assumono uno qualsiasi di questi farmaci per ≥ 30 giorni sono idonei. 9. Ipersensibilità nota all’rpFVIII o alle proteine di criceto o murine. 10. Il soggetto è stato esposto ad un IP nei 30 giorni precedenti l’arruolamento oppure è previsto che il soggetto partecipi a un altro studio clinico con un prodotto o un dispositivo sperimentale nel corso di questo studio. 11. Non in grado di tollerare la quantità di sangue prelevato prevista dalle procedure del protocollo. 12. Il soggetto è un familiare o un dipendente dello sperimentatore. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary outcome measure is the GHEA score, which is composed of 3 individual ratings: • Assessment of intraoperative hemostatic efficacy of BAX 802 performed by the operating surgeon • Assessment of postoperative hemostatic efficacy of BAX 802 at postoperative Day 1 (approximately 24 hours after surgery) performed by the operating surgeon • Assessment of overall perioperative hemostatic efficacy of BAX 802 at Day 14 or discharge (whichever is earlier), performed by the investigator. The scores of each of the 3 individual ratings described above, will be added together to form a GHEA score.
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La misura di esito primaria è il punteggio GHEA, che è composto da 3 singole valutazioni: • Valutazione dell’efficacia emostatica intra-operatoria di BAX 802 effettuata dal chirurgo che compie l’operazione • Valutazione dell’efficacia emostatica post-operatoria di BAX 802 il Giorno 1 post-operatorio (circa 24 ore dopo l’intervento chirurgico) effettuata dal chirurgo che compie l’operazione • Valutazione dell’efficacia emostatica peri-operatoria globale di BAX 802 il Giorno 14 o alla dimissione (a seconda dell’evento che si verifica prima), effettuata dallo sperimentatore I punteggi di ognuna delle 3 singole valutazioni sopra descritte saranno sommati per formare un punteggio GHEA unico.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Varying times as defined by the protocol |
Diverse volte come definito dal protocollo |
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E.5.2 | Secondary end point(s) |
Efficacy 1. Blood loss compared to the estimated volume of expected average blood loss and expected maximum blood loss in a comparable healthy individual as predicted preoperatively by the investigator/surgeon at the following time points: • Intraoperative, at the end of surgery • Postoperative Day 1, approximately 24 hours after surgery • Overall perioperative Day 14 or discharge (whichever is earlier) 2. Daily and total weight-adjusted administration of BAX 802 per subject 3. Volume of blood, red blood cells, platelets, and other blood products transfused 4. Occurrence of bleeding episodes during the intra- and postoperative periods and additional need for surgical intervention 5. Efficacy of the treatment of unrelated bleeding episodes in the postoperative period. Safety 1. Development of, and changes to, the titer of inhibitory and binding antibodies to rpFVIII 2. Development of, and changes to, the titer of inhibitory and binding antibodies to hFVIII 3. Development of binding antibodies to BHK proteins 4. Occurrence of thrombotic events 5. Incidence of severe allergic reactions (eg, anaphylaxis) 6. Incidence of other IP-related AEs 7. Incidence of clinically significant changes in vital signs and routine laboratory parameters (hematology, clinical chemistry) |
Efficacia 1. Perdita di sangue rispetto al volume stimato della perdita di sangue media prevista e della perdita di sangue massima prevista in un individuo sano di confronto in base a quanto previsto in fase pre-operatoria dallo sperimentatore/dal chirurgo ai seguenti punti temporali: • Fase intraoperatoria, al termine dell’intervento chirurgico • Fase postoperatoria al Giorno 1, circa 24 ore dopo l’intervento chirurgico • Fase perioperatoria globale al Giorno 14 o alla dimissione (a seconda dell’evento che si verifica prima) 2. Somministrazione quotidiana e totale ponderata di BAX 802 per soggetto 3. Volume di sangue, globuli rossi, piastrine e altri emoderivati trasfusi 4. Comparsa di episodi emorragici durante i periodi intra- e post-operatori e l’ulteriore necessità di ricorso all’intervento chirurgico 5. Efficacia del trattamento degli episodi emorragici non correlati nel periodo post-operatorio Sicurezza 1. Sviluppo e variazione della titolazione di anticorpi inibitori e leganti al fattore VIII suino ricombinante (recombinant porcine factor VIII, rpFVIII) 2. Sviluppo e variazione della titolazione di anticorpi inibitori e leganti all’hFVIII 3. Sviluppo di anticorpi leganti alle proteine BHK 4. Comparsa di eventi trombotici 5. Incidenza delle reazioni allergiche gravi (ad es. anafilassi) 6. Incidenza di altri AE correlati all’IP 7. Incidenza di variazioni clinicamente significative dei segni vitali e dei parametri di laboratorio di routine (ematologia, chimica clinica)
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Varying times as defined by the protocol. |
Tempistiche variabili come definite dal Protocollo |
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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 | No |
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) | 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 | Information not present in EudraCT |
E.8.1.6 | Cross over | Information not present in EudraCT |
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.8.3 |
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 | 20 |
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 | Information not present in EudraCT |
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 |
France |
Hungary |
Italy |
Netherlands |
Norway |
Poland |
Russian Federation |
Spain |
Sweden |
United Kingdom |
United States |
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E.8.7 | Trial has a data monitoring committee | No |
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 | 0 |
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 | 0 |