Et forsøg, der evaluerer sygdomskarakteristika i hæmofili B Voksne mandlige deltagere, der modtager profylakse med Standard of Care Faktor IX Protein (FIX) erstatningsterapi (Honey-B)
En prospektiv undersøgelse til evaluering af sygdomskarakteristika i hæmofili B-deltagere, der modtager profylakse med standardbehandling FIX-erstatningsterapi
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
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
Ontario
-
Hamilton, Ontario, Canada, L8N 3Z5
- McMaster University Medical Centre - Hamilton Health Sciences
-
-
Quebec
-
Montreal, Quebec, Canada, H4A 3J1
- Mcgill University Health Center (MUHC)
-
-
-
-
-
London, Det Forenede Kongerige, SE1 7EH
- St. Thomas' Hospital
-
London, Det Forenede Kongerige, E1 1FR
- Barts Health NHS Trust, Royal London Hospital
-
-
Hampshire
-
Southampton, Hampshire, Det Forenede Kongerige, SO16 6YD
- Southampton General Hospital
-
-
-
-
Colorado
-
Aurora, Colorado, Forenede Stater, 80045
- University of Colorado Hemophilia and Thrombosis Center
-
-
Connecticut
-
New Haven, Connecticut, Forenede Stater, 06510
- Yale HTC
-
-
District of Columbia
-
Washington D.C., District of Columbia, Forenede Stater, 20057
- Georgetown University Medical Center
-
-
Florida
-
Gainesville, Florida, Forenede Stater, 32610
- University of Florida
-
-
Illinois
-
Chicago, Illinois, Forenede Stater, 60612
- Rush University Medical Center
-
-
Indiana
-
Indianapolis, Indiana, Forenede Stater, 46260
- Indiana Hemophilia and Thrombosis Center
-
-
Michigan
-
Ann Arbor, Michigan, Forenede Stater, 48109
- University of Michigan
-
-
Ohio
-
Columbus, Ohio, Forenede Stater, 43205
- Nationwide Children's Hospital
-
-
Texas
-
Houston, Texas, Forenede Stater, 77030
- University of Texas Health Science Center at Houston
-
-
-
-
-
Frankfurt, Tyskland, 60590
- Klinikum der Johann Wolfgang Goethe-Universitaet Frankfurt
-
Hamburg, Tyskland, 20246
- University Hospital Hamburg Eppendorf
-
-
Bavaria
-
Regensburg, Bavaria, Tyskland, 93053
- University Hospital of Regensburg
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
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
Beskrivelse
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:
-
History of any coagulation disorder; requires anticoagulant therapy
-
Lack of adherence with documentation of bleeds and/or prophylaxis replacement therapy administration in the opinion of the investigator, based on medical history
-
History of FIX inhibitor (clinical or laboratory-based assessment) on 2 or more occasions, as defined in the protocol
-
Bethesda inhibitor titer greater than the upper limit of normal (ULN) at screening
-
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
-
Is positive for hepatitis B or C at screening, as defined in protocol
-
If any of the following pre-existing diagnoses are documented:
- Cholestatic liver disease
- Liver cirrhosis
- Portal hypertension; or
- Splenomegaly; or
- Hepatic encephalopathy
-
History of arterial or venous thrombo-embolic events, as defined in the protocol
-
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
-
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
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: COHORT
- Tidsperspektiver: PROSPECTIVE
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
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. |
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Årlig blødningshastighed (ABR)
Tidsramme: Mindst 26 uger Op til 96 uger
|
Mindst 26 uger Op til 96 uger
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Forskel på FIX:C hos deltagere på profylakse FIX-erstatningsterapi ved et-trins- og kromogene assays
Tidsramme: Til slutningen af undersøgelsen, cirka 96 uger
|
Til slutningen af undersøgelsen, cirka 96 uger
|
|
|
Forskellen på FIX:C mellem et-trins-assay og kromogent substrat-assay af laboratoriet hos deltagere på profylakse FIX-erstatningsterapi
Tidsramme: Til slutningen af undersøgelsen, cirka 96 uger
|
Til slutningen af undersøgelsen, cirka 96 uger
|
|
|
Forskel på FIX:C mellem laboratorier efter assay (et-trins assay og kromogent substrat assay) hos deltagere på profylakse FIX substitutionsterapi
Tidsramme: Til slutningen af undersøgelsen, cirka 96 uger
|
Til slutningen af undersøgelsen, cirka 96 uger
|
|
|
Annualiseret udnyttelse (IE/kg) af FIX-erstatningsterapi
Tidsramme: Op til 96 uger
|
Op til 96 uger
|
|
|
Forekomst af uønskede hændelser (AE'er)
Tidsramme: Til slutningen af undersøgelsen, cirka 96 uger
|
Til slutningen af undersøgelsen, cirka 96 uger
|
|
|
Alvorligheden af AE'er
Tidsramme: Til slutningen af undersøgelsen, cirka 96 uger
|
Til slutningen af undersøgelsen, cirka 96 uger
|
|
|
Påvisning af antistoffer mod adeno-associeret virus (AAV) capsidproteiner
Tidsramme: Op til 96 uger
|
Op til 96 uger
|
|
|
FIX functional (coagulant) activity (FIX:C) in participants on prophylaxis FIX replacement therapy
Tidsramme: Through the end of the study, approximately 96 Weeks
|
FIX:C includes pre-dose and average activity |
Through the end of the study, approximately 96 Weeks
|
|
Hemophilia Quality of Life (Haemo-Qol-A) total and individual domain scores
Tidsramme: Up to 96 Weeks
|
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
|
|
Hemophilia Activities List (HAL) total and individual scores
Tidsramme: Up to 96 Weeks
|
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
|
|
European Quality of Life 5 Dimensions 3-levels (EQ-5D-3L) score
Tidsramme: Up to 96 Weeks
|
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
|
|
Hemophilia Joint Health Score (HJHS) total and individual scores per joint
Tidsramme: Up to 96 Weeks
|
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
|
|
Annualized medically attended visit (MAV) rate for any reason
Tidsramme: Up to 96 Weeks
|
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
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Studieleder: Clinical Trial Management, Regeneron Pharmaceuticals
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Genetiske sygdomme, medfødte
- Hæmatologiske sygdomme
- Blodkoagulationsforstyrrelser
- Hæmoragiske lidelser
- Genetiske sygdomme, X-forbundet
- Blodkoagulationsforstyrrelser, arvelig
- Koagulationsproteinforstyrrelser
- Medfødte, arvelige og neonatale sygdomme og abnormiteter
- Hemiske og lymfatiske sygdomme
- Hæmofili B
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- R0000-HEMB-2187
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
All Individual Patient Data (IPD) that underlie publicly available results will be considered for sharing
IPD-delingstidsramme
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
IPD-delingsadgangskriterier
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
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
- CSR
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .