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TerminatedNCT01691014Updated Dec 29, 2016Results posted

Formation of Antibodies and Subsequent Prediction of Clinical Response in Patients With Rheumatoid Arthritis Treated With Four TNF Blocking Agents

An observational study in Rheumatoid Arthritis (RA), sponsored by Pfizer. Terminated at 13 sites in Denmark. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-12-29.

Sponsored by Pfizer · Observational

Why this study was terminated
The study was terminated on 10DEC2014 due to the inability to enroll the planned number of patients. There were no safety concerns.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
79
Ages
18 Years and older
Sex
All
01

Study summary

The rationale for this study is to further explore if development of antibodies against TNF-α blocking agents is associated with reduced clinical effect/worsened clinical outcome. An important aspect of the study is to carry out an exploratory analysis of the immunogenicity of the 4 recommended TNF-α blockers in the treatment of RA in Denmark, using the same cell-based assay.

Read the detailed description

no sampling

02

Conditions studied

  • Rheumatoid Arthritis (RA)
03

In context

Arthritis

3,554 studies on the registry are indexed under Arthritis; 317 are open to participants now.

This study's enrollment of 79 is below the median of 155 across 1,057 observational studies indexed under Arthritis.

Browse Arthritis studies →

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

patients with Rheumatoid Arthritis (RA)

Inclusion criteria

  • Subject fulfils criteria for Rheumatoid Arthritis (RA) according to ACR or EULAR criteria.
  • Subjects who are planned to start treatment with ADA, ETA, CER or IFX
  • Subjects taking a minimum weekly dose of 7.5 mg of methotrexate

Exclusion criteria

Exclusion Criteria:

  • Patients with compliance problems
  • Patients who have difficulties in reading and understanding local language
  • Patients with Juvenile Idiopathic Arthritis (JIA)
  • Azathioprine or cyclophosphamide treatment within 6 months before entering into the study
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
79 participants (actual)

Groups and cohorts

  • adalimumab

    Other: non-interventional study

  • Etanercept

    Other: non-interventional study

  • infliximab

    Other: non-interventional study

  • Certolizumab

    Other: non-interventional study

Interventions

  • Othernon-interventional study

    Study with 4 arms/groups with 36 patients per group. In total 144 patients.

  • Othernon-interventional study

    Study with 4 arms/groups with 36 patients per group. In total 144 patients.

  • Othernon-interventional study

    Study with 4 arms/groups with 36 patients per group. In total 144 patients.

  • Othernon-interventional study

    Study with 4 arms/groups with 36 patients per group. In total 144 patients.

06

What researchers measure

Primary outcomes

  1. Number of Participants With Anti-drug Antibodies Formation Levels 6 Months After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab

    Anti-drug antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab were to be measured in serum samples using a validated commercially available cell-based reporter-gene assay.

    Time frame: Month 6

  2. Number of Participants With Presence of Active Drugs in Serum 6 Months After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab

    Presence of active drugs in serum 6 months after treatment with Adalimumab, Certolizumab, Etanercept and Infliximab were to be measured in serum samples using a validated commercially available cell-based reporter-gene assay.

    Time frame: Month 6

Secondary outcomes

  1. Correlation Between Formation of Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab 6 Months After Initiation of Treatment and Disease Activity Score 28 (DAS28) 12 Months After Initiation of Treatment

    Association between formation of antibodies to Adalimumab, Certolizumab, Etanercept, Infliximab and DAS28 was to be analyzed using Pearson and Spearman correlations across and within each of the four treatment groups. DAS28-4 was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joint count, C-reactive protein (CRP) in milligram per liter (mg/L) and participant global assessment (PGA) of disease activity (participant rated arthritis activity assessment with total score ranging from 0 \[good condition\] to 10 \[worst condition\]; higher score indicates worse condition). DAS28-4 total score range: 0 (no disease activity) to 9.4 (maximum disease activity), higher score indicates more disease activity.

    Time frame: Month 6, 12

  2. Correlation Between Formation of Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab 6 Months After Initiation of Treatment and Health Assessment Questionnaire (HAQ) 12 Months After Initiation of Treatment

    Association between formation of antibodies to Adalimumab, Certolizumab, Etanercept, Infliximab and HAQ scores was to be analyzed using Pearson and Spearman correlations across and within each of the four treatment groups. HAQ was a self-reported, valid assessment of functional disability in rheumatoid arthritis based on ability of participants to perform daily activities. HAQ total score range: 0 (normal functioning) to 3 (worst functioning), where higher score indicates worse functioning.

    Time frame: Month 6, 12

  3. Correlation Between Formation of Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab 6 Months After Initiation of Treatment and Cessation of Therapy Between Month 6 and 12 Visits

    Association between formation of antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab and cessation of therapy was to be analyzed. Cessation of therapy between month 6 and month 12 was the time to withdrawal from study due to either adverse events or lack of effect between the 6 month visit and the 12 month visit.

    Time frame: Month 6, 12

  4. Number of Participants With Anti-drug Antibodies Levels 3 and 12 Months After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab

    Anti-drug antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab were to be measured in serum samples using a validated commercially available cell-based reporter-gene assay.

    Time frame: Month 3, 12

  5. Correlation Between the Formation of Anti-drug Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab and Concomitant Methotrexate Treatment

    Association between formation of anti-drug antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab and concomitant Methotrexate treatment (weekly dose of 7.5 milligram) was to be analyzed.

    Time frame: Month 12

  6. Disease Activity Score Based on 28-Joints Count (DAS28) After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab at Month 3, 6 and 12

    DAS28-4 was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joint count, C-reactive protein (CRP) in milligram per liter (mg/L) and participant global assessment (PGA) of disease activity (participant rated arthritis activity assessment with total score ranging from 0 \[good condition\] to 10 \[worst condition\]; higher score indicates worse condition). DAS28-4 total score range: 0 (no disease activity) to 9.4 (maximum disease activity), higher score indicates more disease activity. DAS28-4 (CRP) less than or equal to (\<=) 3.2 implied low disease activity and greater than (\>) 3.2 to 5.1 implied moderate to high disease activity.

    Time frame: Month 3, 6, 12

  7. Health Assessment Questionnaire (HAQ) Score After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab at Baseline, Month 3, 6 and 12

    HAQ was a self-reported, valid assessment of functional disability in rheumatoid arthritis based on ability of participants to perform daily activities. HAQ total score range: 0 (normal functioning) to 3 (worst functioning), where higher score indicates worse functioning.

    Time frame: Baseline, Month 3, 6, 12

07

Results

Posted Dec 29, 2016
Limitations and caveats
Due to premature termination of the study, the primary objective and few of the secondary objectives for the study were not met.

Participant flow

Participant flow — Overall Study
MilestoneAdalimumabEtanerceptCertolizumabInfliximab
Started826369
Completed511254
Not completed315115
Withdrew: Premature termination1603
Withdrew: Other0020
Withdrew: Withdrawal by subject0111
Withdrew: Adverse event0511
Withdrew: Lack of efficacy2370

Outcome measures

PrimaryNumber of Participants With Anti-drug Antibodies Formation Levels 6 Months After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab

Anti-drug antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab were to be measured in serum samples using a validated commercially available cell-based reporter-gene assay.

Time frame:
Month 6

No measurements were reported for this outcome.

PrimaryNumber of Participants With Presence of Active Drugs in Serum 6 Months After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab

Presence of active drugs in serum 6 months after treatment with Adalimumab, Certolizumab, Etanercept and Infliximab were to be measured in serum samples using a validated commercially available cell-based reporter-gene assay.

Time frame:
Month 6

No measurements were reported for this outcome.

SecondaryCorrelation Between Formation of Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab 6 Months After Initiation of Treatment and Disease Activity Score 28 (DAS28) 12 Months After Initiation of Treatment

Association between formation of antibodies to Adalimumab, Certolizumab, Etanercept, Infliximab and DAS28 was to be analyzed using Pearson and Spearman correlations across and within each of the four treatment groups. DAS28-4 was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joint count, C-reactive protein (CRP) in milligram per liter (mg/L) and participant global assessment (PGA) of disease activity (participant rated arthritis activity assessment with total score ranging from 0 \[good condition\] to 10 \[worst condition\]; higher score indicates worse condition). DAS28-4 total score range: 0 (no disease activity) to 9.4 (maximum disease activity), higher score indicates more disease activity.

Time frame:
Month 6, 12

No measurements were reported for this outcome.

SecondaryCorrelation Between Formation of Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab 6 Months After Initiation of Treatment and Health Assessment Questionnaire (HAQ) 12 Months After Initiation of Treatment

Association between formation of antibodies to Adalimumab, Certolizumab, Etanercept, Infliximab and HAQ scores was to be analyzed using Pearson and Spearman correlations across and within each of the four treatment groups. HAQ was a self-reported, valid assessment of functional disability in rheumatoid arthritis based on ability of participants to perform daily activities. HAQ total score range: 0 (normal functioning) to 3 (worst functioning), where higher score indicates worse functioning.

Time frame:
Month 6, 12

No measurements were reported for this outcome.

SecondaryCorrelation Between Formation of Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab 6 Months After Initiation of Treatment and Cessation of Therapy Between Month 6 and 12 Visits

Association between formation of antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab and cessation of therapy was to be analyzed. Cessation of therapy between month 6 and month 12 was the time to withdrawal from study due to either adverse events or lack of effect between the 6 month visit and the 12 month visit.

Time frame:
Month 6, 12

No measurements were reported for this outcome.

SecondaryNumber of Participants With Anti-drug Antibodies Levels 3 and 12 Months After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab

Anti-drug antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab were to be measured in serum samples using a validated commercially available cell-based reporter-gene assay.

Time frame:
Month 3, 12

No measurements were reported for this outcome.

SecondaryCorrelation Between the Formation of Anti-drug Antibodies to Adalimumab, Certolizumab, Etanercept or Infliximab and Concomitant Methotrexate Treatment

Association between formation of anti-drug antibodies to Adalimumab, Certolizumab, Etanercept and Infliximab and concomitant Methotrexate treatment (weekly dose of 7.5 milligram) was to be analyzed.

Time frame:
Month 12

No measurements were reported for this outcome.

SecondaryDisease Activity Score Based on 28-Joints Count (DAS28) After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab at Month 3, 6 and 12

DAS28-4 was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joint count, C-reactive protein (CRP) in milligram per liter (mg/L) and participant global assessment (PGA) of disease activity (participant rated arthritis activity assessment with total score ranging from 0 \[good condition\] to 10 \[worst condition\]; higher score indicates worse condition). DAS28-4 total score range: 0 (no disease activity) to 9.4 (maximum disease activity), higher score indicates more disease activity. DAS28-4 (CRP) less than or equal to (\<=) 3.2 implied low disease activity and greater than (\>) 3.2 to 5.1 implied moderate to high disease activity.

Time frame:
Month 3, 6, 12
Reported as:
Mean · units on a scale
Disease Activity Score Based on 28-Joints Count (DAS28) After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab at Month 3, 6 and 12
units on a scaleAdalimumabEtanerceptCertolizumabInfliximab
Month 3 (n= 7, 23, 34, 8)3.2 ± 1.03.0 ± 1.13.0 ± 1.43.0 ± 2.0
Month 6 (n= 6, 18, 26, 6)2.7 ± 1.62.2 ± 1.12.4 ± 1.31.8 ± 1.0
Month 12 (n= 5, 11, 25, 4)2.6 ± 0.82.4 ± 0.82.5 ± 1.12.7 ± 0.6
Statistical analysis
  • Adalimumab vs Etanercept vs Certolizumab vs Infliximab · Fisher Exact · p = 0.990
  • Adalimumab vs Etanercept vs Certolizumab vs Infliximab · Fisher Exact · p = 0.586
  • Adalimumab vs Etanercept vs Certolizumab vs Infliximab · Fisher Exact · p = 0.980
SecondaryHealth Assessment Questionnaire (HAQ) Score After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab at Baseline, Month 3, 6 and 12

HAQ was a self-reported, valid assessment of functional disability in rheumatoid arthritis based on ability of participants to perform daily activities. HAQ total score range: 0 (normal functioning) to 3 (worst functioning), where higher score indicates worse functioning.

Time frame:
Baseline, Month 3, 6, 12
Reported as:
Mean · units on a scale
Health Assessment Questionnaire (HAQ) Score After Initiation of Treatment With Adalimumab, Certolizumab, Etanercept or Infliximab at Baseline, Month 3, 6 and 12
units on a scaleAdalimumabEtanerceptCertolizumabInfliximab
Baseline (n= 8, 26, 36, 9)1.1 ± 0.61.2 ± 0.61.2 ± 0.71.1 ± 0.5
Month 3 (n= 7, 23, 34, 8)0.8 ± 0.60.9 ± 0.70.8 ± 0.71.2 ± 0.8
Month 6 (n= 6, 18, 26, 6)0.8 ± 0.20.6 ± 0.60.7 ± 0.60.8 ± 0.7
Month 12 (n= 5, 11, 25, 4)0.7 ± 0.41.0 ± 0.80.6 ± 0.60.8 ± 0.7
Statistical analysis
  • Adalimumab vs Etanercept vs Certolizumab vs Infliximab · Fisher Exact · p = 0.945
  • Adalimumab vs Etanercept vs Certolizumab vs Infliximab · Fisher Exact · p = 0.458
  • Adalimumab vs Etanercept vs Certolizumab vs Infliximab · Fisher Exact · p = 0.896
  • Adalimumab vs Etanercept vs Certolizumab vs Infliximab · Fisher Exact · p = 0.390

Adverse events

Collected over Baseline upto 12 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Adalimumab—1/8 (12.5%)2/8 (25%)
Etanercept—2/26 (7.7%)13/26 (50%)
Certolizumab—2/36 (5.6%)6/36 (16.7%)
Infliximab—0/9 (0%)6/9 (66.7%)
Most frequent serious events
Most frequent serious events
EventAdalimumabEtanerceptCertolizumabInfliximab
VasculitisVascular disorders1/80/260/360/9
PyelonephritisInfections and infestations0/81/260/360/9
Adenocarcinoma of esophagusNeoplasms benign, malignant and unspecified (incl cysts and polyps)0/81/260/360/9
LymphadenopathyBlood and lymphatic system disorders0/80/261/360/9
InfectionInfections and infestations0/80/261/360/9
TuberculosisInfections and infestations0/80/261/360/9
Most frequent other events
Showing 10 of 36
Most frequent other events
EventAdalimumabEtanerceptCertolizumabInfliximab
Urinary tract infectionInfections and infestations0/81/260/362/9
Periumbilical painGastrointestinal disorders1/80/260/360/9
Foreign body reactionGeneral disorders1/80/260/360/9
Infection localisedInfections and infestations1/80/260/360/9
Nose infection NOSInfections and infestations1/80/260/360/9
Hypertension arterialVascular disorders1/80/260/360/9
NauseaGastrointestinal disorders0/80/261/361/9
Feeling unwellGeneral disorders0/80/260/361/9
PolypGeneral disorders0/80/260/361/9
Allergy NOSImmune system disorders0/80/260/361/9

Baseline characteristics

Effectiveness analysis set (EAS) included all participants that provided at least 1 post-baseline assessment.

Age, Continuous
Age, Continuous(years)AdalimumabEtanerceptCertolizumabInfliximabTotal
Mean51 ± 657 ± 1356 ± 1451 ± 1155 ± 13
Gender
Gender(Participants)AdalimumabEtanerceptCertolizumabInfliximabTotal
Female42123654
Male4513325
08

Study locations

13 sites
  • Aalborg Universitetshospital Nord/Reumatologisk Afdelning
    Aalborg, 9000, Denmark
  • Aarhus Universitetshospital/Reumatologisk Afdelning U
    Aarhus C., 8000, Denmark
  • Sydvestjysk Sygehus / Reumatologisk Afdeling
    Esbjerg, 6700, Denmark
  • Frederiksberg Hospital / Reumatologisk Afdeling
    Frederiksberg, 2000, Denmark
  • Gentofte Hospital, Medicinsk afd. C
    Hellerup, 2900, Denmark
  • Hillerod Hospital/Reumatologisk Afdeling
    Hillerod, 3400, Denmark
  • Holbaek Sygehus
    Holbaek, 4300, Denmark
  • Reumatologisk afd
    Kolding, 6000, Denmark
  • Odense Universitets Hospital/Reumatologisk Afdeling C
    Odense C, 5000, Denmark
  • Regionshospitalet Randers / Reumatologisk Klinik
    Randers NØ, 8930, Denmark
  • Svendborg Sygehus / Medicinsk Afdeling M
    Svendborg, 5700, Denmark
  • Vejle Sygehus / Medicinsk Afdeling
    Vejle, 7100, Denmark
  • Hospitalsenheden Viborg Reumatologisk Ambulatorium
    Viborg, 8800, Denmark
09

References and documents

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 29, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01691014
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Sep 24, 2012
Start date
Apr 2013
Primary completion
Jan 2015
Completion
Jan 2015
Results posted
Dec 29, 2016
Last update
Dec 29, 2016

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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