Uno studio che valuta le caratteristiche della malattia nell'emofilia B Partecipanti maschi adulti che ricevono la profilassi con terapia sostitutiva standard di proteine fattore IX di cura (FIX) (Honey-B)
Uno studio prospettico per valutare le caratteristiche della malattia nei partecipanti all'emofilia B che ricevono la profilassi con la terapia sostitutiva standard FIX
This study is focused on males who have Hemophilia B and who need regular preventive treatment with factor IX protein (FIX) replacement therapy to prevent and also to control their bleeding events. The aim of the study is to gather at least 6 months of information on bleeding events for each individual participant while they continue to use their usual FIX replacement therapy. There is no experimental treatment being tested in this study. The study is informational, and part of a larger program to understand and treat Hemophilia B with a potential experimental new therapy in the future. There is no obligation to agree to taking part in this future study.
The study is looking to answer several other research questions to help understand each participant's individual disease characteristics, including:
- How often to use FIX replacement therapy, both on a regular basis (prophylaxis) and as needed to treat bleeding events
- Measurement of FIX activity (factor IX is a clotting factor) by different laboratories using different types of tests in Hemophilia B participants
- Possible complications from the FIX replacement therapy the patient receives (usual standard of care will continue to be used)
- How quality of life is affected by Hemophilia B
- How joint health is affected by Hemophilia B
- How often the participant visits the emergency room, urgent care center, physician's office, hospital, or has a telemedicine visit as a result of bleeding events
- Whether the body makes antibodies (a protein produced by the body's immune system) against the FIX replacement therapy you receive, which could make the drug less effective or could lead to side effects
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Tipo di studio
Tipo di studio
Iscrizione (Effettivo)
Iscrizione
Contatti e Sedi
Luoghi di studio
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Ontario
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Hamilton, Ontario, Canada, L8N 3Z5
- McMaster University Medical Centre - Hamilton Health Sciences
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Quebec
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Montreal, Quebec, Canada, H4A 3J1
- Mcgill University Health Center (MUHC)
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Frankfurt, Germania, 60590
- Klinikum der Johann Wolfgang Goethe-Universitaet Frankfurt
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Hamburg, Germania, 20246
- University Hospital Hamburg Eppendorf
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Bavaria
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Regensburg, Bavaria, Germania, 93053
- University Hospital of Regensburg
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London, Regno Unito, SE1 7EH
- St. Thomas' Hospital
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London, Regno Unito, E1 1FR
- Barts Health NHS Trust, Royal London Hospital
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Hampshire
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Southampton, Hampshire, Regno Unito, SO16 6YD
- Southampton General Hospital
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Colorado
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Aurora, Colorado, Stati Uniti, 80045
- University of Colorado Hemophilia and Thrombosis Center
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Connecticut
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New Haven, Connecticut, Stati Uniti, 06510
- Yale HTC
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District of Columbia
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Washington D.C., District of Columbia, Stati Uniti, 20057
- Georgetown University Medical Center
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Florida
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Gainesville, Florida, Stati Uniti, 32610
- University of Florida
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Illinois
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Chicago, Illinois, Stati Uniti, 60612
- Rush University Medical Center
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Indiana
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Indianapolis, Indiana, Stati Uniti, 46260
- Indiana Hemophilia and Thrombosis Center
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Michigan
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Ann Arbor, Michigan, Stati Uniti, 48109
- University of Michigan
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Ohio
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Columbus, Ohio, Stati Uniti, 43205
- Nationwide Children's Hospital
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Texas
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Houston, Texas, Stati Uniti, 77030
- University of Texas Health Science Center at Houston
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Male patients with Hemophilia B with a history of FIX:C ≤2% or a documented genotype known to produce severe hemophilia B on current FIX Replacement Therapy prophylaxis
Descrizione
Key Inclusion Criteria:
- Previous experience with FIX therapy (≥50 documented exposure days to a FIX protein product such as recombinant, plasma-derived or extended half-life FIX product) with a current stable prophylaxis regimen for >2 months prior to enrollment and intention to use FIX replacement therapy for the duration of the study
- No known hypersensitivity to FIX replacement product
- Willing to be contacted about a potential future clustered regularly interspaced short palindromic repeats (CRISPR)-based Factor 9 (F9) gene insertion clinical trial in which they may have the opportunity to screen for enrollment
Key Exclusion Criteria:
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History of any coagulation disorder; requires anticoagulant therapy
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Lack of adherence with documentation of bleeds and/or prophylaxis replacement therapy administration in the opinion of the investigator, based on medical history
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History of FIX inhibitor (clinical or laboratory-based assessment) on 2 or more occasions, as defined in the protocol
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Bethesda inhibitor titer greater than the upper limit of normal (ULN) at screening
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Any detectable pre-existing antibodies to the Adeno-associated virus serotype 8 (AAV8) capsid; as measured by an assay at prescreening, as defined in the protocol
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Is positive for hepatitis B or C at screening, as defined in protocol
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If any of the following pre-existing diagnoses are documented:
- Cholestatic liver disease
- Liver cirrhosis
- Portal hypertension; or
- Splenomegaly; or
- Hepatic encephalopathy
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History of arterial or venous thrombo-embolic events, as defined in the protocol
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History of clinically significant cardiovascular, respiratory, hepatic, renal (including nephrotic syndrome), gastrointestinal (including protein-losing enteropathy), endocrine, hematological (including thrombophilia), psychiatric, or neurological disease, as assessed by the investigator that may confound the results of the study or poses an additional risk to the participant by study participation
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Previously received of any AAV-gene based therapy with a marketed gene therapy or in a clinical trial or intent to receive approved or investigational AAV-gene based therapy during the study period
NOTE: Other Inclusion/Exclusion Protocol Defined Criteria Apply
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Modelli osservazionali: COHORT
- Prospettive temporali: PROSPECTIVE
Numero di gruppi/coorti
Coorti e interventi
Gruppo / CoorteGruppo / Coorte |
Intervento / TrattamentoIntervento / Trattamento |
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Cohort 1
Male participants with hemophilia B on current FIX Replacement Therapy prophylaxis or a documented genotype known to produce severe hemophilia B |
No study treatment will be administered in this study. |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
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Tasso di sanguinamento annualizzato (ABR)
Lasso di tempo: Almeno 26 settimane Fino a 96 settimane
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Almeno 26 settimane Fino a 96 settimane
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Differenza di FIX:C nei partecipanti alla profilassi Terapia sostitutiva FIX mediante analisi a una fase e cromogeniche
Lasso di tempo: Fino alla fine dello studio, circa 96 settimane
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Fino alla fine dello studio, circa 96 settimane
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Differenza di FIX:C tra il test one-stage e il test del substrato cromogenico da parte del laboratorio nei partecipanti alla profilassi con terapia sostitutiva FIX
Lasso di tempo: Fino alla fine dello studio, circa 96 settimane
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Fino alla fine dello studio, circa 96 settimane
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Differenza di FIX:C tra laboratori per analisi (analisi in una fase e analisi del substrato cromogenico) nei partecipanti alla profilassi con terapia sostitutiva FIX
Lasso di tempo: Fino alla fine dello studio, circa 96 settimane
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Fino alla fine dello studio, circa 96 settimane
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Utilizzo annualizzato (UI/kg) della terapia sostitutiva con FIX
Lasso di tempo: Fino a 96 settimane
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Fino a 96 settimane
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Incidenza di eventi avversi (EA)
Lasso di tempo: Fino alla fine dello studio, circa 96 settimane
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Fino alla fine dello studio, circa 96 settimane
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Gravità degli eventi avversi
Lasso di tempo: Fino alla fine dello studio, circa 96 settimane
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Fino alla fine dello studio, circa 96 settimane
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Rilevazione di anticorpi contro le proteine del capside del virus adeno-associato (AAV).
Lasso di tempo: Fino a 96 settimane
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Fino a 96 settimane
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FIX functional (coagulant) activity (FIX:C) in participants on prophylaxis FIX replacement therapy
Lasso di tempo: Through the end of the study, approximately 96 Weeks
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FIX:C includes pre-dose and average activity |
Through the end of the study, approximately 96 Weeks
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Hemophilia Quality of Life (Haemo-Qol-A) total and individual domain scores
Lasso di tempo: Up to 96 Weeks
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The Haemo-QoL-A is a self-reported Hemophilia-specific health-related quality of life questionnaire which consists of 41 questions covering 6 domains (Physical Functioning, Role Functioning, Worry, Consequences of Bleeding, Emotional Impact, and Treatment Concerns). Items are answered on a 6-point Likert-type scale, ranging from 0 (None of the time) to 5 (All of the time). Higher scores mean better health-related quality of life or less impairment. |
Up to 96 Weeks
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Hemophilia Activities List (HAL) total and individual scores
Lasso di tempo: Up to 96 Weeks
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HAL measures of the impact of Hemophilia on functional abilities in adults. The questionnaire consists of 42 items across 7 domains. Each item is rated on a scale of 1 (Impossible) to 6 (Never). Higher scores represent lower levels of activity limitations. |
Up to 96 Weeks
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European Quality of Life 5 Dimensions 3-levels (EQ-5D-3L) score
Lasso di tempo: Up to 96 Weeks
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EQ-5D-3L health questionnaire is a participant/relative answered questionnaire scoring 5 dimensions - mobility, self-care, usual activities, pain/discomfort and anxiety/depression. the status of each dimension had 3 possible responses (1 =no problem, 2 some problem 3 =severe problems) in the relevant health dimension. Higher score indicated a worsening health condition. |
Up to 96 Weeks
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Hemophilia Joint Health Score (HJHS) total and individual scores per joint
Lasso di tempo: Up to 96 Weeks
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The examination involves a physical assessment of elbow, knee, and ankle joints. Individual joints are scored based on duration and presence of swelling, joint pain, flexibility, muscle atrophy, strength, and overall gait. The HJHS is a validated 11-item scoring tool based on radiologic and clinical evaluation, sensitive to detect early signs and minor changes. HJHS ranges from 0 to 124. Higher values in the HJHS represent worse situation for the participant. |
Up to 96 Weeks
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Annualized medically attended visit (MAV) rate for any reason
Lasso di tempo: Up to 96 Weeks
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The annual rate of MAVs including emergency room (ER) visits, urgent care center visits, physician's office visits, telemedicine visits, or hospitalizations related to bleeds treated on-demand with FIX replacement therapy |
Up to 96 Weeks
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Collaboratori e investigatori
Sponsor
Sponsor
Investigatori
Investigatori
- Direttore dello studio: Clinical Trial Management, Regeneron Pharmaceuticals
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Malattie genetiche, congenite
- Malattie ematologiche
- Disturbi della coagulazione del sangue
- Disturbi emorragici
- Malattie genetiche, legate all'X
- Disturbi della coagulazione del sangue, ereditari
- Disturbi delle proteine della coagulazione
- Malattie e anomalie congenite, ereditarie e neonatali
- Malattie emiche e linfatiche
- Emofilia B
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- R0000-HEMB-2187
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Descrizione del piano IPD
All Individual Patient Data (IPD) that underlie publicly available results will be considered for sharing
Periodo di condivisione IPD
When Regeneron has
- received marketing authorization from major health authorities (e.g., FDA, European Medicines Agency (EMA), Pharmaceuticals and Medical Devices Agency (PMDA), etc.) for the product and indication or has globally discontinued development of the product for all indications on or after April 2020 and has no plans for future development
- made the study results publicly available (e.g., scientific publication, scientific conference, clinical trial registry)
- the legal authority to share the data, and
- ensured the ability to protect participant privacy
Criteri di accesso alla condivisione IPD
Qualified researchers can submit a proposal for access to individual patient or aggregate level data from a Regeneron-sponsored clinical trial through Vivli. Regeneron's Independent Research Request Evaluation Criteria can be found at: https://www.regeneron.com/sites/default/files/Regeneron-External-Data-Sharing-Policy-and-Independent-Research-Request-Evaluation-Criteria.pdf
Tipo di informazioni di supporto alla condivisione IPD
- STUDIO_PROTOCOLLO
- LINFA
- ICF
- CODICE_ANALITICO
- RSI
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .