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Assess the Efficacy and Safety of Personalized Prophylaxis Human-cl rhFVIII in Patients With Severe Haemophilia A

21. desember 2020 oppdatert av: Octapharma

Prospective, Open-label, Multi-centre Phase 3b Study to Assess the Efficacy and Safety of Personalized Prophylaxis With Human-cl rhFVIII in Previously Treated Adult Patients With Severe Haemophilia A

The rationale of this study is to further fine-tune and individualize prophylactic treatment of patients with severe Haemophilia A with the goal of keeping the trough FVIII level above 1% between doses. Because trough FVIII levels are likely to be important predictors of the efficacy of prophylaxis, the focus of this study is on pharmacokinetic (PK) data.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Faktiske)

58

Fase

  • Fase 3

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Canada
    • Alberta
      • Edmonton, Alberta, Canada, T6G1C9
        • Octapharma Research Site
    • Newfoundland and Labrador
      • St. John's, Newfoundland and Labrador, Canada
        • Octapharma Research Site
    • Ontario
      • Hamilton, Ontario, Canada, L8N 4K1
        • McMaster University
  • Finland
      • Helsinki, Finland, 00290
        • Helsinki University Hospital
  • Forente stater
    • California
      • Sacramento, California, Forente stater, 95817
        • Octapharma Research Site
    • Colorado
      • Aurora, Colorado, Forente stater, 80045
        • Octapharma Research Site
    • District of Columbia
      • Washington, District of Columbia, Forente stater, 20057
        • Octapharma Research Site
    • Florida
      • Miami, Florida, Forente stater, 33136
        • Octapharma Research Site
    • Illinois
      • Chicago, Illinois, Forente stater, 60612
        • Octapharma Research Site
    • Indiana
      • Indianapolis, Indiana, Forente stater, 46260
        • Octapharma Research Site
    • Tennessee
      • Memphis, Tennessee, Forente stater, 38163
        • Octapharma Research Site
    • Texas
      • Houston, Texas, Forente stater, 77030
        • Octapharma Research Site
    • Utah
      • Salt Lake City, Utah, Forente stater, 84112
        • Octapharma Research Site
  • Frankrike
      • Bron, Frankrike, 69677
        • Centre Régional de Traitement de l'hémophilie
      • Clermont-Ferrand, Frankrike
        • CHU Estaing
      • La Réunion, Frankrike, 97400
        • Centre Hospitalier Universitaire Félix Guyon
      • Nantes, Frankrike, 44093
        • Centre Régional de Traitement de l'hémophilie
      • Toulouse, Frankrike, 31059
        • Hôpital Purpan - Centre de Traitment Regional de l'Hemophilie Pole
  • Japan
      • Maebashi, Japan
        • Gunma University Hospital
      • Osaka, Japan
        • Osaka National Hospital
      • Tokyo, Japan
        • Ogikubo Hospital
      • Tokyo, Japan
        • Teikyo University Hospital
    • Aichi
      • Nagoya, Aichi, Japan
        • Nagoya University Hospital
    • Fukuoka
      • Kitakyushu, Fukuoka, Japan
        • Hospital of the Univ of Occupational and Environmental Health
    • Kanagawa
      • Kawasaki, Kanagawa, Japan
        • St. Marianna Univ School of Medicine Hospital
    • Nara
      • Kashihara, Nara, Japan
        • Nara Medical University Hospital
  • Kroatia
      • Zagreb, Kroatia
        • University Hospital Centre Zagreb
  • Nederland
      • Groningen, Nederland, 9713
        • University Medical Center Groningen
  • Nord-Makedonia
      • Skopje, Nord-Makedonia
        • PHI Institute of Transfusion Medicine of Republic of Macedonia
  • Slovenia
      • Ljubljana, Slovenia
        • University Medical Centre Ljubljana

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Mann

Beskrivelse

Inclusion Criteria:

  • Severe Haemophilia A (FVIII:C < 1%)
  • Male patients >= 18 years of age
  • Previous treatment with a FVIII concentrate for at least 150 EDs
  • Good documentation regarding dosing and bleeding frequency in the 6 months preceding study start
  • Immunocompetence (CD4+ count > 200/uL)

Exclusion Criteria:

  • Any coagulation disorder other than Haemophilia A
  • Present of past FVIII inhibitor activity
  • Severe liver or kidney disease

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Human-cl rhFVIII
Biologisk: Human cl rhFVIII

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Annualized Total Bleeding Rate of Individually Tailored Prophylaxis
Tidsramme: 6 months
Total annualized bleeding rate (ABR) of individually tailored prophylaxis (GENA-21b) compared to historical bleeding rate in patients having received on-demand treatment (GENA-01) with Human-cl rhFVIII
6 months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Annualized Spontaneous Bleeding Rate of Individually Tailored Prophylaxis
Tidsramme: 6 months
Spontaneous annualized bleeding rate (ABR) of individually tailored prophylaxis (GENA-21b) compared to historical bleeding rate in patients having received on-demand treatment (GENA-01) with Human-cl rhFVIII
6 months
Annualized Total Bleeding Rate in Patients With 2x/Week (or Less) Prophylaxis
Tidsramme: 6 months
Total annualized bleeding rate (ABR) in patients with 2x/week (or less) prophylaxis (GENA-21b) compared to historical bleeding rate in patients having received on-demand treatment (GENA-01) with Human-cl rhFVIII
6 months
Median Prophylactic Dosing Interval
Tidsramme: 6 months
Median over median actual dosing intervals between two prophylactic treatments per patient. The median time (hours) between two prophylactic doses of Human-cl rhFVIII in the prophylactic treatment Phase II per patient
6 months
Mean Prophylactic Dosing Interval
Tidsramme: 6 months
Mean over mean actual dosing intervals between two prophylactic treatments per patient. The mean time (hours) between two prophylactic doses of Human-cl rhFVIII in the prophylactic treatment Phase II per patient
6 months
AUC Divided by the Dose (AUCnorm) of Human-cl rhFVIII
Tidsramme: Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
AUCnorm of Human-cl rhFVIII measured using the one-stage (OS) assay
Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
In-vivo Recovery (IVR) of Human-cl rhFVIII
Tidsramme: Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
IVR of Human-cl rhFVIII measured using the one-stage (OS) assay and will be determined from the FVIII level before the infusion and the peak level after the infusion of Human-cl rhFVIII
Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
Half Life (t1/2) of Human-cl rhFVIII
Tidsramme: Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
T1/2 of Human-cl rhFVIII measured using the one-stage (OS) assay
Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
Mean Residence Time (MRT) of Human-cl rhFVIII
Tidsramme: Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
MRT of Human-cl rhFVIII measured using the one-stage (OS) assay
Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
Clearance (CL) of Human-cl rhFVIII
Tidsramme: Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
CL of Human-cl rhFVIII measured using the one-stage (OS) assay
Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
Volume of Distribution at Steady State (Vss) of Human-cl rhFVIII
Tidsramme: Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
Vss of Human-cl rhFVIII measured using the one-stage (OS) assay
Before injection (within 1 h before injection) and up to 72 h (± 2 h) after the end of injection
Usage of Human-cl rhFVIII (FVIII IU/kg BW Per Week Per Patient)
Tidsramme: 6 months
Average weekly consumption of Human-cl rhFVIII reported as IU/kg BW per week per patient was determined during individualized prophylactic treatment
6 months
Number of Patients With Adverse Events (AEs)
Tidsramme: At each study visit over the study duration (7-9 months)
AEs were documented at each (scheduled or unscheduled) study visit. Severity and seriousness of all AEs were documented by the investigator according to pre-defined criteria
At each study visit over the study duration (7-9 months)

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Octapharma

Etterforskere

  • Hovedetterforsker: Craig M Kessler, MD, Georgetown University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. mai 2015

Primær fullføring (Faktiske)

1. september 2018

Studiet fullført (Faktiske)

1. september 2018

Datoer for studieregistrering

Først innsendt

30. september 2014

Først innsendt som oppfylte QC-kriteriene

1. oktober 2014

Først lagt ut (Anslag)

6. oktober 2014

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

19. januar 2021

Siste oppdatering sendt inn som oppfylte QC-kriteriene

21. desember 2020

Sist bekreftet

1. desember 2020

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • GENA-21B

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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