Long-Term Safety and Efficacy of rFIXFc in the Prevention and Treatment of Bleeding Episodes in Previously Treated Participants With Hemophilia B (B-YOND)
An Open-Label, Multicenter, Evaluation of the Long-Term Safety and Efficacy of Recombinant Human Coagulation Factor IX Fusion Protein (rFIXFc) in the Prevention and Treatment of Bleeding Episodes in Previously Treated Subjects With Hemophilia B
The primary objective of the study is to evaluate the long-term safety of rFIXFc in participants with hemophilia B.
The secondary objective of this study is to evaluate the efficacy of rFIXFc in the prevention and treatment of bleeding episodes.
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Description détaillée
Type d'étude
Type d'étude
Inscription (Réel)
Inscription
Phase
Phase
- Phase 3
Contacts et emplacements
Lieux d'étude
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Gauteng
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Johannesburg, Gauteng, Afrique du Sud, 2193
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Western Cape
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Cape Town, Western Cape, Afrique du Sud, 7925
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North Rhine-westphalia
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Bonn, North Rhine-westphalia, Allemagne, 53127
- Research Site
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South Australia
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Adelaide, South Australia, Australie, 5000
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Victoria
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Parkville, Victoria, Australie, 3052
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Western Australia
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Murdoch, Western Australia, Australie, 6150
- Research Site
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Perth, Western Australia, Australie, 6008
- Research Site
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Bruxelles, Belgique, 1200
- Research Site
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Leuven, Belgique, 3000
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Sao Paulo
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Campinas, Sao Paulo, Brésil, 13083-878
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Ontario
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Toronto, Ontario, Canada, M5B 1W8
- Research Site
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Quebec
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Montreal, Quebec, Canada, H3T 1C5
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Beijingshì
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Beijing, Beijingshì, Chine, 100005
- Research Site
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Guangdongsheng
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Guangzhou, Guangdongsheng, Chine, 510515
- Research Site
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Shànghaishì
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Shanghai, Shànghaishì, Chine, 200025
- Research Site
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Tianjinshì
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Tianjing, Tianjinshì, Chine, 300020
- Research Site
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Bouches-Du-Rhône
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Marseille, Bouches-Du-Rhône, France, 13385
- Research Site
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Hong Kong, Hong Kong
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New Territories
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Hong Kong, New Territories, Hong Kong
- Research Site
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Karnataka
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Bangalore, Karnataka, Inde, 560034
- Research Site
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Maharashtra
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Pune, Maharashtra, Inde, 411004
- Research Site
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Tamil Nadu
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Vellore, Tamil Nadu, Inde, 632004
- Research Site
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Dublin, Irlande, D12 N512
- Research Site
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Florence, Italie, 50134
- Research Site
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Milano, Italie, 20122
- Research Site
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Aichi-Ken
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Nagoya-Shi, Aichi-Ken, Japon, 466-8550
- Research Site
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Fukuoka-Ken
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Kitakyushu, Fukuoka-Ken, Japon, 807-8555
- Research Site
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Kanagawa-Ken
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Kawasaki, Kanagawa-Ken, Japon, 216-8511
- Research Site
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Nara-Ken
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Kashihara-shi, Nara-Ken, Japon, 634-8522
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Tokyo-To
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Shinjuku-ku, Tokyo-To, Japon, 160-0023
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Tokyo, Tokyo-To, Japon, 167-8515
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Utrecht, Pays-Bas, 3584 CX
- Research Site
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Lodz, Pologne, 93-510
- Research Site
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Cambridgeshire
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Cambridge, Cambridgeshire, Royaume-Uni, CB2 0QQ
- Research Site
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Greater London
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London, Greater London, Royaume-Uni, E1 1BB
- Research Site
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London, Greater London, Royaume-Uni, SE1 7EH
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Hampshire
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Basingstoke, Hampshire, Royaume-Uni, RG24 9NA
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Malmö, Suède, 20502
- Research Site
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Stockholm, Suède, 17176
- Research Site
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Arizona
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Phoenix, Arizona, États-Unis, 85016
- Research Site
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California
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Sacramento, California, États-Unis, 95817
- Research Site
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Colorado
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Aurora, Colorado, États-Unis, 80045
- Research Site
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Georgia
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Atlanta, Georgia, États-Unis, 30322
- Research Site
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Hawaii
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Honolulu, Hawaii, États-Unis, 96826
- Research Site
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Indiana
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Indianapolis, Indiana, États-Unis, 46260
- Research Site
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Louisiana
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New Orleans, Louisiana, États-Unis, 70112
- Research Site
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Michigan
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East Lansing, Michigan, États-Unis, 48823
- Research Site
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Pennsylvania
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Pittsburgh, Pennsylvania, États-Unis, 15213
- Research Site
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Washington
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Seattle, Washington, États-Unis, 98104
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Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
- Enfant
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Key Inclusion Criteria:
- Subjects who have completed studies 998HB102 (NCT01027364) or 9HB02PED (NCT01440946) or other studies with rFIXFc
- Ability to understand the purposes & risks of the study and provide signed and dated informed consent.
Key Exclusion Criteria:
- High-titer inhibitor (>/=5.00 BU/mL)
NOTE: Other protocol defined Inclusion/ Exclusion criteria may apply.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Non randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Nombre de bras
Armes et Interventions
Groupe de participants / BrasGroupe de participants / Bras |
Intervention / TraitementIntervention / Traitement |
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Expérimental: On-Demand
The individual dose of rFIXFc to treat bleeding episodes will be based on participant's clinical condition, type and severity of the bleeding event, and if indicated, Factor IX peak (recovery) levels.
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Administered as specified in the treatment arm.
Autres noms:
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Expérimental: Prophylaxis
Weekly prophylaxis, individualized prophylaxis or personalized prophylaxis available.
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Administered as specified in the treatment arm.
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Number of Participants With Any Positive Inhibitor Development
Délai: Approximately 5 years
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An inhibitor test result greater than or equal to (>=)0.6 Bethesda units per milliliter (BU/mL), confirmed on 2 separate samples drawn 2 to 4 weeks apart, was considered positive.
Both tests were to be performed by the central laboratory using the Nijmegen-modified Bethesda Assay.
Data was summarized by treatment regimen for participants from Study 998HB102 and by age cohort (<6 years and 6 to <12 years old) and treatment regimen for participants from Study 9HB02PED per planned analysis.
Participants were included in summary of more than 1 treatment regimen if their regimen changed during study.
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Approximately 5 years
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Mesures de résultats secondaires
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Annualized Bleeding Rate (ABR)
Délai: Approximately 5 years
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ABR is annualized number of bleeding episodes per participant per year.
Bleeding episodes were classified as spontaneous if participant records bleeding event when there is no known contributing factor such as definite trauma/antecedent strenuous activity and classified as traumatic if participant records bleeding event when there is known reason for bleed.
ABR=(Number of bleeding episodes during efficacy period/number of days during efficacy period)*365.25.
Efficacy period reflects sum of all intervals of time during which participants were treated with rFIXFc per treatment regimen excluding major and minor surgical/rehabilitation periods and large injection intervals.
ABR was summarized by treatment regimen for participants from study 998HB102 and by age cohort (<6 years and 6 to <12 years old) and treatment regimen for participants from study 9HB02PED per planned analysis.
Participants were included in summary of more than 1 treatment regimen if their regimen changed during study.
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Approximately 5 years
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Annualized Spontaneous Joint Bleeding Episodes
Délai: Approximately 5 years
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Bleeding episodes were classified as spontaneous if participant records a bleeding event when there is no known contributing factor such as definite trauma/antecedent strenuous activity.
In addition, location of bleed (joint, internal, skin/mucosa or muscle) were also collected.
Annualized spontaneous joint bleeding episodes=(Number of spontaneous joint bleeding episodes during efficacy period/number of days during efficacy period)*365.25.
Efficacy period reflects sum of all intervals of time during which participants were treated with rFIXFc per treatment regimen excluding major and minor surgical/rehabilitation periods and large injection intervals.
Bleeding episodes were summarized by treatment regimen for participants from study 998HB102 and by age cohort (<6 years and 6 to <12 years old) and treatment regimen for participants from study 9HB02PED as per planned analysis.
Participants were included in summary of more than 1 treatment regimen if their regimen changed during study.
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Approximately 5 years
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Total Number of Exposure Days (EDs)
Délai: Approximately 5 years
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An exposure day is a 24-hour period in which one or more rFIXFc injections are given.
The total number of days of exposure to rFIXFc were summarized by treatment regimen for participants from study 998HB102 and by age cohort (<6 years and 6 to <12 years old) and treatment regimen for participants from study 9HB02PED as per planned analysis.
Participants were included in summary of more than 1 treatment regimen if their regimen changed during study.
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Approximately 5 years
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Annualized rFIXFc Consumption (International Units Per Kilogram [IU/kg])
Délai: Approximately 5 years
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Annualized consumption = (total international unit per kilogram [IU/kg] of study treatment received during the efficacy period / total number of days during the efficacy period) multiplied by 365.25.
Efficacy period reflects sum of all intervals of time during which participants were treated with rFIXFc per treatment regimen excluding major and minor surgical/rehabilitation periods and large injection intervals.
Annualized consumption was summarized by treatment regimen for participants from study 998HB102 and by age cohort (<6 years and 6 to <12 years old) and treatment regimen for participants from study 9HB02PED as per planned analysis.
Participants were included in summary of more than 1 treatment regimen if their regimen changed during study.
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Approximately 5 years
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Physicians' Global Assessment of Participant's Response to rFIXFc Regimen Using a 4-Point Scale
Délai: Approximately 5 years
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Participants were assessed for response to their rFIXFc regimen using following 4-point scale: 1=Excellent: bleeding episodes responded to less than or equal to (<=)usual number of injections or dose of rFIXFc or rate of breakthrough bleeding during prophylaxis was <= that usually observed; 2=Effective: most bleeding episodes responded to same number of injections and dose, but some required more injections or higher doses, or there was minor increase in rate of breakthrough; 3=Partially Effective: bleeding episodes most often required more injections and/or higher doses than expected or adequate breakthrough bleeding prevention during prophylaxis required more frequent injections and/or higher doses and 4=Ineffective: routine failure to control hemostasis/hemostatic control require additional agents.
Total number of scale responses =total count of scale responses for all participants; multiple responses per participant including those at scheduled and unscheduled visits are counted.
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Approximately 5 years
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Participant's Assessment of Response (Excellent or Good Response) to rFIXFc Injections for the Treatment of Bleeding Episodes Using a 4-Point Scale
Délai: Approximately 5 years
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Using eDiary, participant received rating for treatment response to any bleeding episode (BE) using 4-point scale- 1=Excellent: Abrupt pain relief and/or improvement in signs of bleeding within approximately (approx.) 8 hours (h) after initial injection (inj.);
2=Good: Definite pain relief and/or improvement in signs of bleeding within approx.
8h after an injection, but possibly requiring more than 1 injection after 24-48h for complete resolution; 3=Moderate: Probable/slight beneficial effect within 8h after initial injection and requires more than 1 injection and 4=None: No improvement, or condition worsens within approx.
8h after initial injection.
This assessment was to be made approx.
8 to 12h from time the injection was given to treat BE and prior to any additional doses of rFIXFc given for same bleeding episode.
Percentages are based on the number of bleeding episodes for which a response (excellent or good) was provided for the first injection during the efficacy period.
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Approximately 5 years
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Collaborateurs et enquêteurs
Parrainer
Parrainer
Les enquêteurs
Les enquêteurs
- Directeur d'études: Medical Director, Bioverativ Therapeutics Inc.
Publications et liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Début de l'étude
Achèvement primaire (Réel)
Achèvement primaire
Achèvement de l'étude (Réel)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- 9HB01EXT
- 2011-003075-11
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