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Clinical Study to Investigate the Pharmacokinetics, Efficacy, Safety and Immunogenicity of a Recombinant FVIII in Patients With Severe Hemophilia A

27. september 2019 opdateret af: Octapharma

Clinical Study to Investigate the Pharmacokinetics, Efficacy, Safety and Immunogenicity of Human-cl rhFVIII, a Newly Developed Human Cell-line Derived Recombinant FVIII Concentrate in Previously Treated Patients With Severe Hemophilia A

This is a clinical study to investigate the pharmacokinetics, efficacy, safety and immunogenicity of human-cl rhFVIII, a newly developed human cell-line derived recombinant FVIII concentrate in previously treated patients with severe Hemophilia A.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

22

Fase

  • Fase 2

Kontakter og lokationer

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

Studiesteder

  • Bulgarien
      • Sofia, Bulgarien
        • Prof. Lissitchkov
  • Forenede Stater
    • California
      • Los Angeles, California, Forenede Stater, 90007
        • UCLA Orthodpedic Hospital
      • Sacramento, California, Forenede Stater, 95817
        • University of California, Davis
    • Colorado
      • Denver, Colorado, Forenede Stater, 80045
        • University of Colorado
    • District of Columbia
      • Washington, District of Columbia, Forenede Stater, 20057
        • Georgetown University
    • Illinois
      • Chicago, Illinois, Forenede Stater, 60612
        • Rush University Medical Center
    • New Jersey
      • New Brunswick, New Jersey, Forenede Stater, 08903
        • University of Medicine and Dentistry
  • Tyskland
      • Berlin, Tyskland
        • Vivantes Klinikum
    • Niedersachsen
      • Hannover, Niedersachsen, Tyskland
        • Medizinische Hochschule

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 til 65 år (Barn, Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Han

Beskrivelse

Inclusion Criteria:

  • Severe hemophilia A (FVIII:C <= 1%)
  • Male subjects between 12 and 65 years of age
  • Body weight 25 kg to 110 kg
  • Previously treated with FVIII concentrate for at least 150 EDs

Exclusion Criteria:

  • Other coagulation disorder than hemophilia A
  • Present or past FVIII inhibitor activity

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: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Human-cl rhFVIII
Biologisk: Human-cl rhFVIII
50 IU/kg for PK dose
Aktiv komparator: Kogenate FS
Biologisk: Kogenate FS
50 IU/kg for PK dose

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
The Area Under the Concentration Curve for Human-cl rhFVIII Compared to Kogenate FS
Tidsramme: At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
After the infusion of 50IU/kg bw of Human-cl rhFVIII and Kogenate FS respectively, FVIII activity levels were measured at various time points before and after the infusion. FVIII level results derived from the chromogenic FVIII assay were used to calculate the mean of the area under the curve normalized to the dose administered.
At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Invivo Half-life (T1/2) for Human-cl rhFVIII Compared to Kogenate FS
Tidsramme: At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
After the infusion of 50IU/kg bw of Human-cl rhFVIII and Kogenate FS respectively, FVIII activity levels were measured at various time points before and after the infusion. FVIII level results derived from the chromogenic FVIII assay were used to calculate the mean of the area under the curve normalized to the dose administered.
At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
Maximum Plasma Concentration (Cmax) for Human-cl rhFVIII Compared to Kogenate FS
Tidsramme: At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
After the infusion of 50IU/kg bw of Human-cl rhFVIII and Kogenate FS respectively, FVIII activity levels were measured at various time points before and after the infusion. FVIII level results derived from the chromogenic FVIII assay were used to calculate the mean of the area under the curve normalized to the dose administered.
At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
Time to Reach Maximum Plasma Concentration (Tmax) for Human-cl rhFVIII Compared to Kogenate FS
Tidsramme: At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
After the infusion of 50IU/kg bw of Human-cl rhFVIII and Kogenate FS respectively, FVIII activity levels were measured at various time points before and after the infusion. FVIII level results derived from the chromogenic FVIII assay were used to calculate the mean of the area under the curve normalized to the dose administered.
At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
Mean Residence Time (MRT) for Human-cl rhFVIII Compared to Kogenate FS
Tidsramme: At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
After the infusion of 50IU/kg bw of Human-cl rhFVIII and Kogenate FS respectively, FVIII activity levels were measured at various time points before and after the infusion. FVIII level results derived from the chromogenic FVIII assay were used to calculate the mean of the area under the curve normalized to the dose administered.
At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
Volume of Distribution at Steady State (Vss) for Human-cl rhFVIII Compared to Kogenate FS
Tidsramme: At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
After the infusion of 50IU/kg bw of Human-cl rhFVIII and Kogenate FS respectively, FVIII activity levels were measured at various time points before and after the infusion. FVIII level results derived from the chromogenic FVIII assay were used to calculate the mean of the area under the curve normalized to the dose administered.
At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
Clearance (CL) for Human-cl rhFVIII Compared to Kogenate FS
Tidsramme: At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
After the infusion of 50IU/kg bw of Human-cl rhFVIII and Kogenate FS respectively, FVIII activity levels were measured at various time points before and after the infusion. FVIII level results derived from the chromogenic FVIII assay were used to calculate the mean of the area under the curve normalized to the dose administered.
At baseline (prior to infusion), 0.25, 0.5, 0.75, 1, 3, 6, 9, 12, 24, 30 and 48 hours after the end of the infusion.
Efficacy of On-demand Treatment of Bleeding Episodes
Tidsramme: From 1st treatment after PK cycle 2 until study end.

After each infusion of IMP and at the end of a BE, the following efficacy assessment is made by the subject (together with the Investigator in case of on-site treatment):

Excellent: Abrupt pain relief and/or unequivocal improvement in objective signs of bleeding within approximately 8 hours after a single infusion.

Good: Definite pain relief and/or improvement in signs of bleeding within approximately 8 - 12 hours after an infusion requiring up to 2 infusions for complete resolution.

Moderate: Probable or slight beneficial effect within approximately 12 hours after the first infusion requiring more than two infusions for complete resolution.

None: No improvement within 12 hours, or worsening of symptoms, requiring more than 2 infusions for complete resolution.

The assessment was made at the end of a BE in case more than one infusion was needed.
From 1st treatment after PK cycle 2 until study end.
Immunogenicity (Number of Patients That Developed an Inhibitor During the Course of the Study)
Tidsramme: study entry, then immediately before both PK cycles, in the 48 hour sample of both PK cycles, after 10 to 15 EDs with human-cl rhFVIII, at the 3-month visit (± 2 weeks), then every 3 months (± 2 weeks) until study completion, and after >50 EDs (except for
Inhibitor activity was determined by the modified Bethesda assay (Nijmegen modification) at study entry, then immediately before both PK cycles, in the 48 hour sample of both PK cycles, after 10 to 15 EDs with human-cl rhFVIII, at the 3-month visit (± 2 weeks), then every 3 months (± 2 weeks) until study completion, and after >50 EDs (except for some patients who may finish the study before they achieve 50 EDs), with human-cl rhFVIII (i.e. at the study completion visit).
study entry, then immediately before both PK cycles, in the 48 hour sample of both PK cycles, after 10 to 15 EDs with human-cl rhFVIII, at the 3-month visit (± 2 weeks), then every 3 months (± 2 weeks) until study completion, and after >50 EDs (except for

Samarbejdspartnere og efterforskere

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

Sponsor

Octapharma

Efterforskere

  • Studieleder: Sigurd Knaub, PhD, Octapharma

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

1. maj 2010

Primær færdiggørelse (Faktiske)

1. oktober 2011

Studieafslutning (Faktiske)

1. september 2012

Datoer for studieregistrering

Først indsendt

30. september 2009

Først indsendt, der opfyldte QC-kriterier

1. oktober 2009

Først opslået (Skøn)

2. oktober 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

8. oktober 2019

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

27. september 2019

Sidst verificeret

1. september 2019

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • GENA-01

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 .

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