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Safety and Efficacy of Etanercept (Recombinant Human Tumor Necrosis Factor Receptor Fusion Protein [TNFR:Fc]) in Children With Juvenile Rheumatoid Arthritis (JRA)

10 juni 2019 bijgewerkt door: Amgen

Safety, Population Pharmacokinetics, and Efficacy of Recombinant Human Tumor Necrosis Factor Receptor Fusion Protein (TNFR:Fc) in Children With Juvenile Rheumatoid Arthritis

The primary objective of this study was to determine the efficacy of etanercept in children with polyarticular course JRA.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

This was a two-part study. In the first part of the study, all participants received open-label etanercept twice a week for 90 days. At the end of the 90 days, participants with disease response as defined by the JRA Definition of Improvement (DOI) using the JRA Core Set Criteria were randomized in part 2 of the study to receive placebo or continued administration of etanercept until either disease flare occurred or 4 months elapsed, whichever was earlier.

Participants who did not meet the DOI at day 90, participants who had disease flare during part 2 and participants who completed the blinded part of the study were eligible to receive open-label treatment with etanercept under protocol 16.0018 (NCT00357903).

Studietype

Ingrijpend

Inschrijving (Werkelijk)

69

Fase

  • Fase 2
  • Fase 3

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

4 jaar tot 18 jaar (Kind, Volwassen)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Diagnosis of JRA by the American College of Rheumatology (ACR) criteria.
  • Disease course must be polyarticular with disease duration long enough to have been given an adequate trial of non-steroidal anti-inflammatory drugs (NSAIDs) and low-dose methotrexate at a dose of at least 10 mg/m²/week
  • Continuing active disease, defined as ≥ 5 swollen joints and ≥ 3 joints with limitation of motion accompanied by pain, tenderness or warmth.
  • Disease refractory to methotrexate or intolerant of methotrexate.
  • Have not received disease-modifying anti-rheumatic drugs (DMARDs) within 28 days prior to enrollment.
  • Have not received methotrexate within 14 days prior to dosing of study drug.

Exclusion Criteria:

  • Pregnant or nursing female
  • Functional class IV by ACR criteria
  • Unable to meet concomitant medication restrictions
  • Intraarticular corticosteroid injection within 4 weeks prior to enrollment

  • Clinically significant deviations from normal, defined as:

    • thrombocytopenia; platelet count < 100,000/cmm
    • leukopenia; total white cell count < 4000 cells/cmm
    • neutropenia; neutrophils < 1000 cells/cmm
    • hepatic transaminase levels > two times the upper limit of normal (ULN)
    • serum bilirubin > 2 times ULN
    • creatinine clearance < 90 mL/min/1.73 m² body surface area (BSA) and/or a glomerular filtration rate (GFR) < 90 mL/min/1.73 m² BSA.
    • known human immunodeficiency virus (HIV), hepatitis B surface antigen positivity, or hepatitis C positivity.
    • anti-double-stranded deoxyribonucleic acid (dsDNA) antibodies or anti-cardiolipin antibodies present.
  • Previously received antibody to TNF, antibody to cluster of differentiation (CD)4, or diphtheria interleukin (IL)-2-fusion protein (DAB-IL-2)
  • Participated in a study of an investigational drug or biologic requiring informed consent within 3 months prior to study entry.
  • Any concurrent medical condition which would, in the investigator's opinion, compromise the patient's ability to tolerate the study drug or make the patient unable to cooperate with the protocol.
  • History of or current psychiatric illness that would interfere with ability to comply with protocol requirements or informed consent.
  • History or drug or alcohol abuse that would interfere with ability to comply with protocol requirements

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verdrievoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Placebo-vergelijker: Etanercept/Placebo
Participants received 0.4 mg/kg etanercept twice weekly for 90 days during Part 1. In Part 2 participants were randomized to receive placebo subcutaneous injection twice weekly for up to 4 months.
Geneesmiddel: Etanercept
Administered twice weekly by subcutaneous injection
Andere namen:
  • Enbrel
  • TNFR:Fc
Geneesmiddel: Placebo
Administered twice weekly by subcutaneous injection
Experimenteel: Etanercept/Etanercept
Participants received 0.4 mg/kg etanercept twice weekly for 90 days during Part 1. In Part 2 participants were randomized to continue receiving etanercept twice weekly for up to 4 additional months.
Geneesmiddel: Etanercept
Administered twice weekly by subcutaneous injection
Andere namen:
  • Enbrel
  • TNFR:Fc

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Percentage of Participants With Disease Flare in Part 2
Tijdsspanne: End of part 1 (day 90) and months 4 to 7

Disease flare was defined as a 30% or greater worsening in three of the six JRA Core Set Criteria and ≥ 30% improvement in one or less of the six JRA Core Set Criteria compared to day 90 and a minimum of two active joints (joints with swelling or limitation of movement plus pain and/or tenderness).

The JRA Core Set criteria consisted of:

  • Physician global assessment of disease severity assessed on a visual analog scale (VAS) from 0 (asymptomatic) to 10 (severe symptoms);
  • Patient/parent global assessment of overall well-being assesses on a VAS from 0 (asymptomatic) to 10 (severe symptoms);
  • Number of active joints;
  • Number of joints with limitation of motion (LOM) and with pain, tenderness, or both;
  • Childhood Health Assessment Questionnaire (CHAQ) disability domain;
  • Erythrocyte sedimentation rate (ESR).
End of part 1 (day 90) and months 4 to 7

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Time to Flare in Part 2
Tijdsspanne: Months 4 to 7
The time from day 90 to flare. Participants who withdrew without flare were censored at the time of withdrawal.
Months 4 to 7
Number of Participants With Adverse Events
Tijdsspanne: Part 1: 90 days (months 1-3) plus 30 days for participants who were not randomized into part 2. Part 2: From first dose of randomized treatment to 30 days after last dose (150 days; months 4-8).
Part 1: 90 days (months 1-3) plus 30 days for participants who were not randomized into part 2. Part 2: From first dose of randomized treatment to 30 days after last dose (150 days; months 4-8).

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Amgen

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 mei 1997

Primaire voltooiing (Werkelijk)

8 juli 1998

Studie voltooiing (Werkelijk)

8 juli 1998

Studieregistratiedata

Eerst ingediend

18 december 2018

Eerst ingediend dat voldeed aan de QC-criteria

18 december 2018

Eerst geplaatst (Werkelijk)

19 december 2018

Updates van studierecords

Laatste update geplaatst (Werkelijk)

2 augustus 2019

Laatste update ingediend die voldeed aan QC-criteria

10 juni 2019

Laatst geverifieerd

1 juni 2019

Meer informatie

Termen gerelateerd aan deze studie

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • 20021616
  • 016.0016 (Andere identificatie: Immunex Corporation)

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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