CClinicalTrials.gg
CompletedNCT03780959Updated Aug 2, 2019Results posted

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

A Phase 2/3 interventional study of Etanercept and Placebo in Juvenile Rheumatoid Arthritis, sponsored by Amgen. Completed. Open to participants aged 4 Years to 18 Years. Per ClinicalTrials.gov, last updated 2019-08-02.

Sponsored by Amgen · Phase 2/3, Interventional, and Treatment

From the registry’s dates

  • Registered 21 years 7 months after the study started (first participant enrolled May 1997, registered Dec 2018).
Phase
Phase 2/3
Study type
Interventional
Enrollment
69
Allocation
Randomized
Ages
4 Years to 18 Years
Sex
All
01

Study summary

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

Read the detailed description

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).

02

Conditions studied

03

In context

Arthritis

3,554 studies on the registry are indexed under Arthritis; 318 are open to participants now.

This study's enrollment of 69 is below the median of 90 across 2,377 interventional studies indexed under Arthritis.

Browse Arthritis studies →

Lead sponsor

Amgen is the lead sponsor of 1,015 studies on the registry; 49 are open to participants now.

Of its 245 completed or terminated interventional studies of FDA-regulated products, 159 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

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
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
69 participants (actual)

Study arms

  • Placebo comparator
    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.

    Drug: Etanercept · Drug: Placebo

  • Experimental
    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.

    Drug: Etanercept

Interventions

  • DrugEtanercept

    Administered twice weekly by subcutaneous injection

    Also known as: Enbrel, TNFR:Fc

  • DrugPlacebo

    Administered twice weekly by subcutaneous injection

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With Disease Flare in Part 2

    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).

    Time frame: End of part 1 (day 90) and months 4 to 7

Secondary outcomes

  1. Time to Flare in Part 2

    The time from day 90 to flare. Participants who withdrew without flare were censored at the time of withdrawal.

    Time frame: Months 4 to 7

  2. Number of Participants With Adverse Events

    Time frame: 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).

07

Results

Posted Aug 2, 2019

Participant flow

Participants were enrolled at 9 sites in the United States and Canada. The study consisted of an open-label treatment period (part 1) where all participants received 0.4 mg etanercept twice weekly for 3 months, followed by a randomized double-blind treatment period (part 2).

Part 1
Participant flow — Part 1
MilestonePart 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kg
Started6900
Completed6400
Not completed500
Withdrew: Adverse event100
Withdrew: Withdrawal by subject100
Withdrew: Withdrawal by parent/guardian100
Withdrew: Response status200
Part 2
Participant flow — Part 2
MilestonePart 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kg
Started02625
Completed0719
Not completed0196
Withdrew: Withdrawal by parent/guardian010
Withdrew: Response status0186

Outcome measures

PrimaryPercentage of Participants With Disease Flare in Part 2

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).

Time frame:
End of part 1 (day 90) and months 4 to 7
Reported as:
Number · percentage of participants
Percentage of Participants With Disease Flare in Part 2
percentage of participantsPart 2: PlaceboPart 2: Etanercept 0.4 mg/kg
Percentage of Participants With Disease Flare in Part 28128
Statistical analysis
  • Part 2: Placebo vs Part 2: Etanercept 0.4 mg/kg · Mantel Haenszel · p = 0.0030Stratified by study center and the number of active joints at randomization
SecondaryTime to Flare in Part 2

The time from day 90 to flare. Participants who withdrew without flare were censored at the time of withdrawal.

Time frame:
Months 4 to 7
Reported as:
Median · days
Time to Flare in Part 2
daysPart 2: PlaceboPart 2: Etanercept 0.4 mg/kg
Time to Flare in Part 228.0 (6 to 123)116.0 (28 to 127)
Statistical analysis
  • Part 2: Placebo vs Part 2: Etanercept 0.4 mg/kg · Log Rank · p = 0.0001
SecondaryNumber of Participants With Adverse Events
Time frame:
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).
Reported as:
Count of participants · Participants
Number of Participants With Adverse Events
ParticipantsPart 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kg
Noninfectious adverse events51913
Injection site reactions2711
Infections43815
Serious adverse events101
Deaths000

Adverse events

Collected over 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).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Part 1: Etanercept 0.4 mg/kg—1/69 (1.4%)59/69 (85.5%)
Part 2: Placebo—0/26 (0%)12/26 (46.2%)
Part 2: Etanercept 0.4 mg/kg—1/25 (4%)19/25 (76%)
Most frequent serious events
Most frequent serious events
EventPart 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kg
Abnormal behaviourPsychiatric disorders0/690/261/25
GastroenteritisInfections and infestations1/690/260/25
Most frequent other events
Showing 10 of 23
Most frequent other events
EventPart 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kg
Upper respiratory tract infectionInfections and infestations24/694/2610/25
Injection site erythemaGeneral disorders23/691/260/25
HeadacheNervous system disorders14/693/265/25
Injection site pruritusGeneral disorders13/691/260/25
Injection site swellingGeneral disorders13/691/261/25
VomitingGastrointestinal disorders10/690/263/25
Injection site painGeneral disorders10/691/260/25
PharyngitisInfections and infestations10/690/263/25
GastroenteritisInfections and infestations5/691/263/25
RhinorrhoeaRespiratory, thoracic and mediastinal disorders4/690/263/25

Baseline characteristics

Baseline data are included for all enrolled participants in part 1 (69) and all participants who randomized in part 2 (51).

Age, Continuous
Age, Continuous(years)Part 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kgTotal
Part 110.5 ± 3.9——10.5 ± 3.9
Part 2—12.2 ± 3.58.9 ± 3.710.6 ± 3.9
Age, Customized
Age, Customized(Participants)Part 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kgTotal
Part 1 — 4 - 8 years25——25
Part 1 — 9 - 12 years14——14
Part 1 — 13 - 17 years30——30
Part 2 — 4 - 8 years—51318
Part 2 — 9 - 12 years—459
Part 2 — 13 - 17 years—17724
Sex: Female, Male
Sex: Female, Male(Participants)Part 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kgTotal
Part 1 — Female43——43
Part 1 — Male26——26
Part 2 — Female—151934
Part 2 — Male—11617
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Part 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kgTotal
Part 1 — Black6——6
Part 1 — White52——52
Part 1 — Asian1——1
Part 1 — Hispanic9——9
Part 1 — Native American1——1
Part 2 — Black—134
Part 2 — White—231437
Part 2 — Asian—011
Part 2 — Hispanic—268
Part 2 — Native American—011
Type of Onset of Juvenile Rheumatoid Arthritis (JRA)
Type of Onset of Juvenile Rheumatoid Arthritis (JRA)(Participants)Part 1: Etanercept 0.4 mg/kgPart 2: PlaceboPart 2: Etanercept 0.4 mg/kgTotal
Part 1 — Pauciarticular7——7
Part 1 — Polyarticular40——40
Part 1 — Systemic22——22
Part 2 — Pauciarticular—123
Part 2 — Polyarticular—171431
Part 2 — Systemic—8917
08

Study locations

No study locations are listed for this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 2, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03780959
Lead sponsor
Amgen
Responsible party
Sponsor
First posted
Dec 19, 2018
Start date
May 1, 1997
Primary completion
Jul 8, 1998
Completion
Jul 8, 1998
Results posted
Aug 2, 2019
Last update
Aug 2, 2019

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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