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Efanesoctocog alfa profylakse hos patienter med hæmofili A med synovial hypertrofi (SYNOVIIIUS)

6. november 2026 opdateret af: Sanofi

Prospektiv interventionsundersøgelse af effektiviteten af ​​efanesoctocog alfa -profylakse om synovial hypertrofi hos patienter med hæmofili a

The objective of the study is to assess the improvement of synovial hypertrophy during the 12 months of efanesoctocog alfa prophylaxis once per week (QW) in joints with existing evidence of synovial hypertrophy in participants with hemophilia A.

The study duration for each participant is approximately 12 months.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

35

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Trial Transparency email recommended (Toll free for US & Canada)
  • Telefonnummer: option 6 800-633-1610
  • E-mail: Contact-US@sanofi.com

Studiesteder

    • Western Australia
      • Murdoch, Western Australia, Australien, 6150
        • Afsluttet
        • Investigational Site Number : 0360001
    • Alberta
      • Calgary, Alberta, Canada, T2N 1N4
        • Rekruttering
        • Investigational Site Number : 1240002
    • Newfoundland and Labrador
      • St. John's, Newfoundland and Labrador, Canada, A1B 3V6
        • Rekruttering
        • Investigational Site Number : 1240001
    • Ontario
      • Hamilton, Ontario, Canada, L8N 3Z5
        • Rekruttering
        • Investigational Site Number : 1240003
      • Hamilton, Ontario, Canada, L8N 3Z5
        • Afsluttet
        • Investigational Site Number : 1240004
    • California
      • Los Angeles, California, Forenede Stater, 90007
        • Afsluttet
        • Orthopedic Institute for Children- Site Number : 8400009
      • Sacramento, California, Forenede Stater, 95817-1399
        • Rekruttering
        • University of California Davis Medical Center-Site Number: 8400005
    • Indiana
      • Indianapolis, Indiana, Forenede Stater, 46260
        • Rekruttering
        • Indiana Hemophilia and Thrombosis Center- Site Number : 8400006
    • Iowa
      • Iowa City, Iowa, Forenede Stater, 52242
        • Rekruttering
        • University of Iowa- Site Number : 8400004
    • Ohio
      • Columbus, Ohio, Forenede Stater, 43203
        • Afsluttet
        • The Ohio State University Wexner Medical Center - CarePoint East- Site Number : 8400001
    • Oregon
      • Portland, Oregon, Forenede Stater, 97239-3011
        • Rekruttering
        • Oregon Health and Science University-Site Number: 8400002
    • Washington
      • Seattle, Washington, Forenede Stater, 98101-3932
        • Rekruttering
        • Washington Center for Bleeding Disorders- Site Number : 8400008
      • Hiroshima, Japan, 734-8551
        • Afsluttet
        • Investigational Site Number : 3920002
      • Saitama, Japan, 330-8777
        • Rekruttering
        • Investigational Site Number : 3920001
      • Tokyo, Japan, 160-0023
        • Afsluttet
        • Investigational Site Number : 3920004
    • Kanagawa
      • Kawasaki, Kanagawa, Japan, 216-8511
        • Rekruttering
        • Investigational Site Number : 3920003
      • Kaohsiung City, Taiwan, 80756
        • Rekruttering
        • Investigational Site Number: 1580003
      • Taichung, Taiwan, 407
        • Rekruttering
        • Investigational Site Number: 1580001
      • Taipei, Taiwan, 114
        • Rekruttering
        • Investigational Site Number: 1580002

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

12 år og ældre (Barn, Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Participant is diagnosed with moderate to severe hemophilia A (defined as less than or equal to (≤)5 percent (%) of endogenous FVIII clotting activity) at the time of consent/assent.

  • Participant is more than or equal to (≥)12 years old at the time of consent/assent.

  • Participant has existing synovial hypertrophy, defined as at least 1 eligible* joint by the HEAD-US score (Synovitis score: 1 or 2) at the time of consent/assent.

  • Participant has at least 1 eligible* joint without planned future major orthopedic procedures (example, arthroscopic synovectomy, radioisotopic or chemical synoviorthesis), or major orthopedic procedures in the past 3 months prior to the screening visit (Visit 1).

    *An eligible joint is a joint with existing synovial hypertrophy, as defined by a HEAD-US synovitis score of 1 or 2, considering hypertrophic synovium as an indication of the presence of synovitis

  • Participant has received prophylactic treatment with hemophilia prophylaxis prescriptions in the last 12 months prior to the baseline visit (Visit 2).

  • Participant is capable of understanding the written Informed Consent Form (ICF)/assent form, provides a signed and witnessed written ICF/assent form, and agrees to comply with the protocol requirements.

  • If male, no contraceptive measures are required for this study.

  • If female, is not pregnant or breastfeeding, and one of the following conditions applies:

  • Is a women of nonchildbearing potential (WONCBP)

  • Is a WOCBP and agrees to use a highly effective contraceptive method, with a failure rate of less than (<)1 percent during the study treatment period (at least until the Week 52/ End of Treatment [EoT] visit).

  • A WOCBP must have a negative serum pregnancy test at the screening visit (Visit 1)

Exclusion Criteria:

  • Participants are excluded from the study if any of the following criteria apply:
  • Has other associated clotting disorders at the time of consent/assent.
  • Is already under efanesoctocog alfa treatment.
  • Has a current diagnosis of an factor VIII (FVIII) inhibitor, defined as inhibitor titer ≥0.60 BU/mL.
  • Has ITI within the last 2 years prior to the baseline visit (Visit 2).
  • Has been enrolled in a concurrent clinical interventional study or exposed to other investigational drug(s) within 3 months prior to screening for this study.
  • Is currently in an institution because of regulatory or legal order (that is, is a prisoner or a patient who is legally institutionalized).
  • Is not suitable for participation, whatever the reason, as judged by the investigator, including medical or clinical conditions, or patients potentially at risk of noncompliance to study procedures.
  • Is an employee or family member of the investigator or site personnel.
  • Is involved in a specific situation during study implementation or the course of the study that may raise ethics considerations.
  • Has hypersensitivity to efanesoctocog alfa or its components or any of its excipients that, in the opinion of the investigator, contraindicates participation in the study.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Efanesoctocog Alfa

Participants will receive Efanesoctocog Alfa at 50 international unit per kilogram (IU/kg) intravenous (IV) QW

Pharmaceutical form:Lyophilized powder in a sterile vial that requires reconstitution with sterile water for injection (diluent)-Route of administration:Intravenous

Andre navne:
  • BIVV001
  • Altuviiio®

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of joints with improvement in the Hemophilia Early Arthropathy Detection with Ultrasound (HEAD-US) synovitis domain score
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change from baseline in the distribution of joint HEAD-US synovitis score
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Number of joints with the HEAD-US synovitis domain score that has remained unchanged or worsened
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Percentage of joints with the HEAD-US synovitis domain score that has remained unchanged or worsened
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Number of index joint type with the HEAD-US synovitis domain score that has improved, remained unchanged, or worsened
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Percentage of index joint type with the HEAD-US synovitis domain score that has improved, remained unchanged, or worsened
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Number of participants with at least 1 joint with the HEAD-US synovitis domain score that has improved, remained unchanged, or worsened
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Percentage of participants with at least 1 joint with the HEAD-US synovitis domain score that has improved, remained unchanged, or worsened
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Change from baseline in average HEAD-US synovitis domain score across all index joints
Tidsramme: From Baseline up to Week 52

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 52
Change from baseline in total/ domain scores of the HEAD-US
Tidsramme: From Baseline up to Week 26

HEAD-US scoring system is a simplified ultrasound scanning procedure to image the elbow, knee, and ankle (index joints) and a scoring system based on an additive scale to define the joint status from disease activity and disease damage parameters to evaluate disease progression and monitor the results of treatment.

From Baseline up to Week 26
Change from baseline in total/domain scores of the HJHS
Tidsramme: From Baseline up to Week 26

HJHS comprises an assessment of specific features, or items, of the 6 index joints and an assessment of global gait. For each of the 6 joints, the following items are scored: swelling (0 to 3), duration of swelling (0 to 1), muscle atrophy (0 to 2), crepitus on motion (0 to 2), flexion loss (0 to 3), extension loss (0 to 3), joint pain (0 to 2), and strength (0 to 4). The maximum score for an individual index joint is 20. Gait is scored from 0 to 4. The maximum HJHS total score is 124, with a higher score indicating worse joint health.

From Baseline up to Week 26
Change from baseline in total/domain scores of the HJHS
Tidsramme: From Baseline up to Week 52

HJHS comprises an assessment of specific features, or items, of the 6 index joints and an assessment of global gait. For each of the 6 joints, the following items are scored: swelling (0 to 3), duration of swelling (0 to 1), muscle atrophy (0 to 2), crepitus on motion (0 to 2), flexion loss (0 to 3), extension loss (0 to 3), joint pain (0 to 2), and strength (0 to 4). The maximum score for an individual index joint is 20. Gait is scored from 0 to 4. The maximum HJHS total score is 124, with a higher score indicating worse joint health.

From Baseline up to Week 52
Change from baseline in total/ domain scores of magnetic resonance imaging (MRI)
Tidsramme: From Baseline up to Week 52

MRI will be used to detect changes in synovial hypertrophy in index joints of participants.

From Baseline up to Week 52
Change from baseline in patient-reported outcome (PRO)
Tidsramme: From Baseline up to Week 52

Change from baseline in PRO will be assessed by the EQ-5D 5-level (EQ-5D-5L), Patient-Reported Outcomes Measurement Information System - Short Form (PROMIS-SF) version 2.0 Pain Intensity 3a, PROMIS-SF version 1.1 Pain Interference 6a, and PROMIS-SF version 2.0 Physical Function 6b.

From Baseline up to Week 52
Patient reported treatment preference and satisfaction
Tidsramme: At Week 52

Patient reported treatment preference and satisfaction will be assessed through surveys and exit interviews.

At Week 52
Change from baseline in annualized bleeding rate (ABR) (spontaneous, traumatic)
Tidsramme: At Week 52

The ABR will be defined as (number of bleeding episodes occurring during the treatment period)/(duration of the treatment period [days]) × 365.25.

At Week 52
Change from baseline in annualized joint bleeding rate (AjBR) (spontaneous, traumatic)
Tidsramme: At Week 52

The AjBR will be defined as (number of joint bleeding episodes occurring during the treatment period)/(duration of the treatment period [days]) × 365.25.

At Week 52
Change from baseline in target joint resolution, recurrence, or development
Tidsramme: At Week 52

Change from baseline in target joint resolution, recurrence, or development will be assessed.

At Week 52
The occurrence of Adverse Events (AEs), all AEs leading to treatment discontinuation, Serious Adverse Events (SAEs), and Adverse Event of Special Interest (AESIs)
Tidsramme: Up to Week 52

The safety and tolerability of efanesoctocog alfa evaluated in all participants

Up to Week 52

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

23. september 2025

Primær færdiggørelse (Anslået)

25. oktober 2027

Studieafslutning (Anslået)

25. oktober 2027

Datoer for studieregistrering

Først indsendt

16. april 2025

Først indsendt, der opfyldte QC-kriterier

16. april 2025

Først opslået (Faktiske)

24. april 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

9. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • LPS18168
  • U1111-1311-1701 (Registry Identifier: ICTRP)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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 .