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CompletedNCT01078116HEORUpdated Aug 11, 2011Results posted

Cost Utility Analyses of Adalimumab Treatment in Patients With Rheumatoid Arthritis (RA)

An observational study in Rheumatoid Arthritis, sponsored by Abbott. Completed at 10 sites in Greece. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-08-11.

Sponsored by Abbott · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
124
Ages
18 Years and older
Sex
All
01

Study summary

Evaluation of Health Related Quality of Life (HRQL) is of a paramount importance in assessing the impact of rheumatoid arthritis on patients' health status, however when costs associated with rheumatoid arthritis are also taken into account, the information provided may lead to a more balanced view in analyzing the treatment of the disease.

In accordance with the above, the main objective this study was to evaluate the impact of adalimumab treatment not only on patients' Health Related Quality of Life but also on the cost of the disease management. In order to accomplish this the study has been focused on:

  1. Estimating the direct and indirect cost incurred by adalimumab treatment.
  2. Measuring the Health Related Quality of Life of rheumatoid arthritis patients under adalimumab treatment.
  3. Exploring the cost-utility relationship of rheumatoid arthritis patients treated with adalimumab by combining the Health Related Quality of Life of rheumatoid arthritis patients and direct as well as indirect costs due to RA.

More specifically, data related to patients' Health Related Quality of Life and cost associated with rheumatoid arthritis will be recorded for one-year period, and collected at four subsequent visits: baseline, month 3, 6 and 12. The visit before starting treatment with adalimumab will be considered as baseline. This information was used to compare Health Related Quality of Life and cost data before and after adalimumab initiation and therefore identify the effect of adalimumab treatment in patients with rheumatoid arthritis.

Read the detailed description

Data concerning patients' Health Related Quality of Life as well as the cost of the disease treatment were collected at four subsequent periods and specifically at baseline (Visit 1), and at months 3, 6 and 12.

Moreover, at baseline patients' socioeconomic, and history of illness data as well as the use of other prescribed medication and costs due to rheumatoid arthritis have been recorded, in order to identify patients' health state before adalimumab treatment initiation.

Patients discontinuing therapy (drop-outs) either due to adverse events or on their own initiative were categorized and analyzed separately, while reasons leading to discontinuation were recorded. Adverse events were not collected in this study with the exception of adverse events leading to withdrawal.

In order to evaluate the cost-utility of adalimumab both the cost of the disease treatment and the Health Related Quality of Life of rheumatoid arthritis patients have been taken into account. The process is described below:

Face-to-face interviews were conducted by the physicians/investigators in charge in all four subsequent periods as well as before adalimumab treatment initiation. A questionnaire, divided into the following sections, was administered: 1. Patients' Sociodemographic Characteristics 2. Measurement of Health Related Quality of Life in Rheumatoid Arthritis patients 3. Cost Assessment

02

Conditions studied

  • Rheumatoid Arthritis

Keywords

  • Rheumatoid Arthritis
  • Adalimumab treatment
  • Evaluation of the patients' Health Related Quality of Life
  • Cost of the disease management
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 124 is below the median of 155 across 1,057 observational studies indexed under Arthritis.

Browse Arthritis studies →

Lead sponsor

Abbott is the lead sponsor of 350 studies on the registry; 1 is open to participants now.

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, from hospital centres and private physicians, who were prescribed adalimimab according to the approved SmPC in the European Union, prior to the study enrollment

Inclusion criteria

  • Patients with moderate or severe active rheumatoid arthritis, who have been prescribed and are receiving adalimumab under normal clinical practice for at least one month and according to the approved Summary of Product Characteristics (SmPC) in the European Union.
  • Patients must be willing to consent to data being collected and provided to Abbott Laboratories.

Exclusion criteria

Exclusion Criteria:

  • Contraindications according to the SmPC
  • Patients should not participate in other observational Abbott study
05

Study design

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

Groups and cohorts

  • Patients with Rheumatoid Arthritis

    Eligible rheumatoid arthritis patients treated with adalimumab according to the approved Summary of Product Characteristics (SmPC) in European Union

06

What researchers measure

Primary outcomes

  1. Estimation of the Direct and Indirect Cost Incurred by Adalimumab Treatment

    Direct and indirect per-participant costs were estimated at Baseline (enrollment visit) for the 3-month period prior to initiation of adalimumab treatment, and at 3, 6 and 12 months following initiation of treatment. Direct costs included pharmaceutical costs, diagnostic and monitoring test costs, hospitalization costs, rheumatologist's costs, social insurance rheumatologist's costs, other specialists costs, physiotherapy costs, rehabilitation cost, home care cost, equipment cost and transportation cost. Indirect costs refer to loss of income due to rheumatoid arthritis disability.

    Time frame: Enrollment visit (Baseline), month 3, month 6, month 12

  2. Health Related Quality of Life (European Quality of Life 5 Dimensions)

    European Quality of Life 5 Dimensions (EQ-5D) is a generic health related quality of life instrument which assesses 5 health dimensions on a scale of 1 (no problems) to 5 (worst health). An overall score is derived ranging from -.59 to +1; a higher score indicates better health.

    Time frame: Enrollment visit (Baseline), month 3, month 6, month 12

  3. Health Related Quality of Life (Health Assessment Questionnaire)

    Health Assessment Questionnaire (HAQ) is designed to assess patients' abilities to perform activities of daily living. Scores range between 0 and 3, where higher values represent worse outcomes.

    Time frame: Enrollment visit (Baseline), month 3, month 6, month 12

  4. Health Related Quality of Life (Medical Outcome Study Short Form 36)

    Medical Outcome Study Short Form 36 (MOS SF-36) is a generic health related quality of life assessment that consists of 36 questions within 8 domains. Results from each domain are summarized and transformed into a scale ranging from 0 (worst) to 100 (best).

    Time frame: Enrollment visit (Baseline), month 3, month 6, month 12

  5. Cost-Utility Relationship of Rheumatoid Arthritis Patients Treated With Adalimumab Using Incremental Cost-Effectiveness Approach (ICER)

    The ICER calculation is based on comparison of differences in costs and utilities (based on Quality of Life Adjusted years \[QALYs\]) between Baseline and the 12 month visit. The ICER represents the extra costs that have to be incurred for one extra unit of perfect health to be produced. A treatment is determined to be cost-effective if the ICER is below a certain threshold (National Health Systems of European Union have suggested a threshold of 50,000 euros).

    Time frame: 12 months

07

Results

Posted Jul 25, 2011
Limitations and caveats
Study NCT 01078116 (P10-159) is a substudy of NCT 01086033(GREC-2004-06). Adverse events were not recorded in this study but will be reported in the main study upon completion. Only adverse events leading to withdrawal are reported in this substudy.

Participant flow

Participant flow — Overall Study
MilestoneAdalimumab Treatment
Started124
Completed76
Not completed48
Withdrew: Lost to follow-up17
Withdrew: Adverse event5
Withdrew: Withdrawal by subject8
Withdrew: Lack of effectiveness15
Withdrew: Case report form not completed3

Outcome measures

PrimaryEstimation of the Direct and Indirect Cost Incurred by Adalimumab Treatment

Direct and indirect per-participant costs were estimated at Baseline (enrollment visit) for the 3-month period prior to initiation of adalimumab treatment, and at 3, 6 and 12 months following initiation of treatment. Direct costs included pharmaceutical costs, diagnostic and monitoring test costs, hospitalization costs, rheumatologist's costs, social insurance rheumatologist's costs, other specialists costs, physiotherapy costs, rehabilitation cost, home care cost, equipment cost and transportation cost. Indirect costs refer to loss of income due to rheumatoid arthritis disability.

Time frame:
Enrollment visit (Baseline), month 3, month 6, month 12
Reported as:
Mean · Euros
Estimation of the Direct and Indirect Cost Incurred by Adalimumab Treatment
EurosAdalimumab Treatment
Direct Costs at Baseline (n=121)272.99 ± 383.48
Indirect Costs at Baseline (n=13)1162.62 ± 1146.60
Direct Costs at 3 months (n=104)2662.73 ± 446.86
Indirect Costs at 3 months (n=8)659.13 ± 648.82
Direct Costs at 6 months (n=91)2692.28 ± 243.82
Indirect Costs at 6 months (n=4)500.00 ± 336.65
Direct Costs at 12 months (n=76)2649.42 ± 533.47
Indirect Costs at 12 months (n=1)580.00 ± 0
PrimaryHealth Related Quality of Life (European Quality of Life 5 Dimensions)

European Quality of Life 5 Dimensions (EQ-5D) is a generic health related quality of life instrument which assesses 5 health dimensions on a scale of 1 (no problems) to 5 (worst health). An overall score is derived ranging from -.59 to +1; a higher score indicates better health.

Time frame:
Enrollment visit (Baseline), month 3, month 6, month 12
Reported as:
Mean · Units on a scale
Health Related Quality of Life (European Quality of Life 5 Dimensions)
Units on a scaleAdalimumab Treatment
EQ-5D Score at Baseline0.43 ± 0.16
EQ-5D Score at 3 months0.53 ± 0.23
EQ-5D Score at 6 months0.56 ± 0.23
ED-5D Score at 12 months0.62 ± 0.25
PrimaryHealth Related Quality of Life (Health Assessment Questionnaire)

Health Assessment Questionnaire (HAQ) is designed to assess patients' abilities to perform activities of daily living. Scores range between 0 and 3, where higher values represent worse outcomes.

Time frame:
Enrollment visit (Baseline), month 3, month 6, month 12
Reported as:
Mean · units on a scale
Health Related Quality of Life (Health Assessment Questionnaire)
units on a scaleAdalimumab Treatment
HAQ Score at Baseline1.33 ± 0.70
HAQ Score at 3 months0.95 ± 0.80
HAQ Score at 6 months0.83 ± 0.64
HAQ Score at 12 months0.62 ± 0.64
PrimaryHealth Related Quality of Life (Medical Outcome Study Short Form 36)

Medical Outcome Study Short Form 36 (MOS SF-36) is a generic health related quality of life assessment that consists of 36 questions within 8 domains. Results from each domain are summarized and transformed into a scale ranging from 0 (worst) to 100 (best).

Time frame:
Enrollment visit (Baseline), month 3, month 6, month 12
Reported as:
Mean · Units on a scale
Health Related Quality of Life (Medical Outcome Study Short Form 36)
Units on a scaleAdalimumab Treatment
Physical Functioning Score at Baseline33.5 ± 26.0
Physical Functioning Score at 3 months50.0 ± 29.4
Physical Functioning Score at 6 months56.4 ± 27.8
Physical Functioning Score at 12 months60.0 ± 28.9
Role Physical Score at Baseline18.7 ± 34.0
Role Physical Score at 3 months36.8 ± 43.3
Role Physical Score at 6 months41.0 ± 43.7
Role Physical Score at 12 months51.0 ± 45.0
Bodily Pain Score at Baseline37.2 ± 20.6
Bodily Pain Score at 3 months55.5 ± 23.5
Bodily Pain Score at 6 months60.0 ± 24.5
Bodily Pain Score at 12 months63.2 ± 23.1
General Health Score at Baseline33.8 ± 20.5
General Health Score at 3 months45.4 ± 23.5
General Health Score at 6 months48.5 ± 23.5
General Health Score at 12 months52.8 ± 23.1
Vitality Score at Baseline35.8 ± 20.2
Vitality Score at 3 months48.7 ± 21.0
Vitality Score at 6 months51.0 ± 19.6
Vitality Score at 12 months56.2 ± 18.4
Social Functioning Score at Baseline47.4 ± 33.5
Social Functioning Score at 3 months61.5 ± 28.5
Social Functioning Score at 6 months63.7 ± 29.5
Social Functioning Score at 12 months70.5 ± 26.3
Role Emotional Score at Baseline32.0 ± 44.0
Role Emotional Score at 3 months50.7 ± 47.4
Role Emotional Score at 6 months54.6 ± 47.5
Role Emotional Score at 12 months70.2 ± 42.1
Mental Health Score at Baseline48.0 ± 21.0
Mental Health Score at 3 months57.1 ± 20.0
Mental Health Score at 6 months58.5 ± 20.0
Mental Health Score at 12 months61.4 ± 16.8
PrimaryCost-Utility Relationship of Rheumatoid Arthritis Patients Treated With Adalimumab Using Incremental Cost-Effectiveness Approach (ICER)

The ICER calculation is based on comparison of differences in costs and utilities (based on Quality of Life Adjusted years \[QALYs\]) between Baseline and the 12 month visit. The ICER represents the extra costs that have to be incurred for one extra unit of perfect health to be produced. A treatment is determined to be cost-effective if the ICER is below a certain threshold (National Health Systems of European Union have suggested a threshold of 50,000 euros).

Time frame:
12 months
Reported as:
Number · Euros
Cost-Utility Relationship of Rheumatoid Arthritis Patients Treated With Adalimumab Using Incremental Cost-Effectiveness Approach (ICER)
EurosAdalimumab Treatment
Cost-Utility Relationship of Rheumatoid Arthritis Patients Treated With Adalimumab Using Incremental Cost-Effectiveness Approach (ICER)13,628

Adverse events

Collected over Adverse event data were not collected in this study with the exception of adverse events leading to withdrawal. Adverse events are collected in the main study NCT 01086033 (GREC-2004-06) and will be reported upon completion of that study.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Adalimumab Treatment—3/124 (2.4%)2/124 (1.6%)
Most frequent serious events
Most frequent serious events
EventAdalimumab Treatment
Acute Myocardial Infarction/Coronary Artery Bypass GraftCardiac disorders1/124
Muscular weaknessMusculoskeletal and connective tissue disorders1/124
CellulitisSkin and subcutaneous tissue disorders1/124
Most frequent other events
Most frequent other events
EventAdalimumab Treatment
Rash muculo-papularSkin and subcutaneous tissue disorders1/124
HypersensitivityImmune system disorders1/124

Baseline characteristics

Age Continuous
Age Continuous(years)Adalimumab Treatment
Mean56.2 ± 12.9
Sex: Female, Male
Sex: Female, Male(Participants)Adalimumab Treatment
Female100
Male21
Region of Enrollment
Region of Enrollment(participants)Adalimumab Treatment
Greece121
08

Study locations

10 sites
  • Site Reference ID/Investigator# 32052
    Athens, 115 21, Greece
  • Site Reference ID/Investigator# 32068
    Athens, 115 27, Greece
  • Site Reference ID/Investigator# 32069
    Athens, 11527, Greece
  • Site Reference ID/Investigator# 32071
    Crete, 71500, Greece
  • Site Reference ID/Investigator# 32072
    Ioannina, 45500, Greece
  • Site Reference ID/Investigator# 32073
    Larissa, 41221, Greece
  • Site Reference ID/Investigator# 32064
    Thessaloniki, 54636, Greece
  • Site Reference ID/Investigator# 32065
    Thessaloniki, 54642, Greece
  • Site Reference ID/Investigator# 32066
    Thessaloniki, 564 29, Greece
  • Site Reference ID/Investigator# 32067
    Thessaloniki, 570 10, Greece
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 11, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01078116
Lead sponsor
Abbott
Collaborators
Institute of Political Economical & Social Researches, Greece
First posted
Mar 2, 2010
Start date
Nov 2007
Primary completion
Jun 2010
Completion
Jun 2010
Results posted
Jul 25, 2011
Last update
Aug 11, 2011

Study contacts

Thanasis Floros, MD
study chair · Abbott Laboratories Hellas S.A.

Oversight

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

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