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CompletedNCT00459706Updated Mar 28, 2013Results posted

Study Comparing Perceptions and Satisfaction for Two Different Delivery Mechanisms for Etanercept

A Phase 3 interventional study of Enbrel 50 mg Prefilled Syringe and Enbrel 50 mg Autoinjector in Rheumatoid Arthritis, sponsored by Pfizer. Completed at 113 sites in 9 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2013-03-28.

Sponsored by Pfizer · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
640
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to explore and compare the perceptions and satisfaction for two different delivery mechanisms for Etanercept (Etanercept Autoinjector and the Etanercept Prefilled Syringe) in patients with rheumatoid arthritis (RA).

Read the detailed description

This study describes patient perceptions related to device attributes, which are of importance in describing overall patient perception. A range of potential device benefits (e.g. ease of use, convenience, confidence, presence or absence of fear, side effects related to administration) is captured using a questionnaire based on the outputs of patient interviews.

The study aims to characterize patient attributes that will indicate when one device may result in greater patient satisfaction than another. Patient attributes are composed of patient characteristics (e.g. age, sex, self efficacy, expectations of treatment, perception of their illness) and RA characteristics (e.g. disease severity, disease duration, prior treatment, functional impairment).

02

Conditions studied

  • Rheumatoid Arthritis

Keywords

  • Rheumatoid Arthritis
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 640 is above the median of 90 across 2,377 interventional 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

Inclusion criteria

  • Diagnosis of RA according to the ACR-Criteria.
  • Eligible for treatment with etanercept according to Summary of Product Characteristics (SmPC), and applicable local guidelines.
  • Willing and able to self-inject etanercept.

Exclusion criteria

Exclusion:

  • Prior experience of biologics and anti-TNF treatment for their RA including etanercept.
  • Sepsis or risk of sepsis.
  • Current or recent infections, including chronic or localized.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
640 participants (actual)

Study arms

  • Experimental
    Enbrel 50 mg Prefilled Syringe

    Enbrel 50 mg subcutaneously once weekly for 12 Weeks using Prefilled Syringe

    Device: Enbrel 50 mg Prefilled Syringe

  • Experimental
    Enbrel 50 mg Autoinjector

    Enbrel 50 mg subcutaneously once weekly for 12 Weeks using Autoinjector

    Device: Enbrel 50 mg Autoinjector

Interventions

  • DeviceEnbrel 50 mg Prefilled Syringe

    Enbrel 50 mg subcutaneously once weekly for 12 Weeks using Prefilled Syringe

  • DeviceEnbrel 50 mg Autoinjector

    Enbrel 50 mg subcutaneously once weekly for 12 Weeks using Autoinjector

06

What researchers measure

Primary outcomes

  1. Participant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Modified Intent-to-treat Population

    Participant's response to the question "How satisfied are you with your injection device?" scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher score indicated greater satisfaction with the delivery mechanism.

    Time frame: Day 84

  2. Participant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Per-Protocol Population

    Participant's response to the question "How satisfied are you with your injection device?" scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher score indicated greater satisfaction with the delivery mechanism.

    Time frame: Day 84

Secondary outcomes

  1. Percentage of Participants on Day 28 Satisfied With Either of the Different Delivery Mechanisms for Etanercept

    Percentage of participants answering "Yes" to the question "Are you satisfied with your injection device?"

    Time frame: Day 28

  2. Percentage of Participants on Day 84 Satisfied With Either of the Delivery Mechanisms for Etanercept

    Percentage of participants answering "Yes" to the question "Are you satisfied with your injection device?"

    Time frame: Day 84

  3. Participant Satisfaction by Age for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. Results are reported by age categories: \<=46 years, \>46-55 years, \>55-65 years, \>65 years.

    Time frame: Day 84

  4. Participant Satisfaction by Gender for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism.

    Time frame: Day 84

  5. Participant Satisfaction by Socio-Educational Level for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. Participants were categorized into those having only reading/writing capacity, those at the high-school/baccalaureate level, and those at the university level.

    Time frame: Day 84

  6. Participant Satisfaction by the Hospital Anxiety Depression (HAD) Anxiety Subscale Score for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. The HAD scale assessed participants' levels of anxiety and depression over the past week; total 14 questions, odd-numbered questions related to anxiety. Responses scored on a 4-point scale; each question was graded in a different way. Anxiety subscale scores ranged from 0 to 21. Lower HAD Anxiety subscale scores indicated better health. Categories are anxiety subscale scores.

    Time frame: Day 84

  7. Participant Satisfaction by the HAD Depression Subscale Score for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. The HAD scale assessed participants' levels of anxiety and depression over the past week; total 14 questions, even-numbered questions related to depression. Responses scored on a 4-point scale; each question was graded in a different way. Depression subscale scores ranged from 0 to 21. Lower HAD Depression subscale scores indicated better health. Categories are depression subscale scores.

    Time frame: Day 84

  8. Participant Satisfaction by Patient Activation Measure (PAM) Score for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. The 13-item short form of the PAM survey assessed participants' knowledge, skill, and confidence for self-management; calibrated scale score ranged from 0 to 100. Higher scores indicated more confidence in managing participants' condition and lifestyle. Results reported by PAM score: \<=49.9, \>49.9-56.4, \>56.4-66, \>66.

    Time frame: Day 84

  9. Participant Satisfaction by Prior Self-Injection Experience for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Participants were grouped into 2 categories: those who did and did not have prior self-injection experience. Higher scores indicated greater satisfaction in the delivery mechanism.

    Time frame: Day 84

  10. Participant Satisfaction by Duration of Rheumatoid Arthritis (RA) for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. Results are reported by duration of RA: \<=3 years, \>3-6 years, \>6-13 years, \>13 years.

    Time frame: Day 84

  11. Participant Satisfaction by 28-joint Disease Activity Score (DAS28) for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. DAS28 includes a 28 tender joint count, a 28 swollen joint count, erythrocyte sedimentation rate, and a general health assessment on a visual analog scale. Score ranged from 0 to 9.4. Interpretation: disease activity is low when score ≤3.2, moderate when 3.2\<score≤5.1, or high when score \>5.1, remission when score \<2.6. Results are reported by categories of DAS28 score: \<=4.7, \>4.7-5.4, \>5.4-6.2, \>6.2.

    Time frame: Day 84

  12. Participant Satisfaction by Participant's Global Assessment of RA Activity for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. Participants' global assessment of disease activity was measured on a visual analog scale (VAS) ranging from 0 (inactive) to 100 millimeter (mm) (extremely active). Results are reported by VAS scores observed for the participant's global assessment of RA activity: \<=50 mm, \>50-67 mm, \>67-79 mm, \>79 mm.

    Time frame: Day 84

  13. Participant Satisfaction by Physician's Global Assessment of RA Activity for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. Physicians' global assessment of disease activity was measured on a VAS ranging from 0 (inactive) to 100 mm (extremely active). Results are reported by VAS scores observed for physician's global assessment of RA activity: \<=47 mm, \>47-61 mm, \>61-72 mm, \>72 mm.

    Time frame: Day 84

  14. Participant Satisfaction by Health Assessment Questionnaire - Disability Index (HAQ-DI) for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. The 20-item HAQ-DI assessed the extent of participants' functional ability. Calculation yielded a single disability score from 0=normal or no difficulty to 3=unable to do. Lower HAQ-DI scores indicated better health. Results are reported by categories of HAQ-DI scores observed: \<=0.9, \>0.9-1.4, \>1.4-1.9, \>1.9.

    Time frame: Day 84

  15. Participant Satisfaction by Maximum Combination of Disease-Modifying Antirheumatic Drug (DMARD) Use for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. Participants were categorized into those who received only 1 DMARD, only 2 DMARDs, only 3 DMARDs, and at least 3 DMARDs.

    Time frame: Day 84

  16. Participant Satisfaction by Prior Injection Experience for 2 Different Delivery Mechanisms for Etanercept

    Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Participants were grouped into 2 categories: those who did and did not have prior injection experience. Higher scores indicated greater satisfaction with the delivery mechanism.

    Time frame: Day 84

  17. Short Form of the State-Trait Anxiety Inventory (SF-STAI) Global Score

    The SF-STAI consisted of 6 questions, each scored from 1 to 4. Total score ranged from 6=less anxiety to 24=more anxiety. Higher score indicated that the participant was more anxious.

    Time frame: Day 84

  18. Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Life as a Whole?

    Score indicated satisfaction in response to the question "Thinking about your own life and personal circumstances, how satisfied are you with your life as a whole?" Score ranged from 0=completely dissatisfied to 10=completely satisfied. Higher scores indicated greater satisfaction.

    Time frame: Day 84

  19. Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Health?

    Score indicated satisfaction in response to the question "How satisfied are you with your health?" Score ranged from 0=completely dissatisfied to 10=completely satisfied. Higher scores indicated greater satisfaction.

    Time frame: Day 84

  20. Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With All the Treatments He/She is Currently Receiving for RA?

    Score indicated satisfaction in response to the question "How satisfied are you with all the treatments you are currently receiving for your rheumatoid arthritis?" Score ranged from 0=completely dissatisfied to 10=completely satisfied. Higher scores indicated greater satisfaction.

    Time frame: Day 84

  21. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 1, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q1: Overall, How Easy Was It to Perform an Injection with this Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

    Time frame: Day 84

  22. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 2, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q2: How Easy Was It to Learn to Use the Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

    Time frame: Day 84

  23. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 3, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q3: How Easy Is It to Dispose Of the Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

    Time frame: Day 84

  24. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 4, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q4: How Easy Is It to Know When the Injection Is Completed? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

    Time frame: Day 84

  25. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 5, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q5: How Easy Is It to Hold the Device Whilst Injecting? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

    Time frame: Day 84

  26. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 6, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q6: Did You Feel any Hand Discomfort Whilst Using the Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

    Time frame: Day 84

  27. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 7, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q7: How Long Does It Take to Perform the Injection, Including any Preparation and Disposal? Participants specified their responses on a 5-point Likert scale: 0=\<5 minutes to 4=\>30 minutes.

    Time frame: Day 84

  28. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 8, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Convenient You Find the Device Is to Use - Q8: How Much Do You Think Injecting Etanercept Will Interfere with Your Ability to Enjoy Social or Leisure Activities? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  29. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 9, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Convenient You Find the Device Is to Use - Q9: Do You Think Injecting Etanercept Will Interfere with Your Usual Daily Activities? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  30. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 10, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Convenient You Find the Device Is to Use - Q10: How Much Do You Think Injecting Etanercept Will Interfere with Travelling on Holiday/ Business/Visiting? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  31. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 11, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q11: Overall, How Confident Are You in Your Management of Your Weekly Injections? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  32. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 12, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q12: How Confident Are You That You Inject the Right Amount of Medicine Every Time? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  33. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 13, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q13: How Confident Are You That You Can Inject Yourself Properly with the Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  34. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 14, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q14: Are You Confident That You Have Good Control over the Injection Process? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  35. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 15, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q15: How Confident Are You That You Injected Yourself Successfully? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  36. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 16, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q16: Overall, How Nervous Do You Feel about Your Injections? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  37. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 17, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q17: Overall, How Nervous Do You Feel about Inserting the Needle into Your Skin? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  38. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 18, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q18: Do You Dislike Injecting Yourself with this Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  39. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 19, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q19: Overall, Are You Emotionally Distressed or Anxious about Your Injections? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  40. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 20, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: What Characteristics of the Device You Appreciate - Q20: How Much Do You Like the Look of the Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  41. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 21, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: What Characteristics of the Device You Appreciate - Q21: How Much Do You Like the Feel of the Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  42. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 22, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: What Characteristics of the Device You Appreciate - Q22: How Much Does the Device Look Like Something You Would Feel Comfortable to Use? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  43. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 23, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: Side Effects from Using the Device - Q23: Do You Experience Pain During or Immediately After the Injection? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

    Time frame: Day 84

  44. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 24, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Likely Is It That You Would Use the Device Again - Q24: To What Extent Would You Consider Alternative Devices If You Were to Continue on Etanercept? Participants specified their responses on a 5-point Likert scale: 0=very little to 4=very much.

    Time frame: Day 84

  45. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 25, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Likely Is It That You Would Use the Device Again - Q25: Would You Recommend this Device to Someone Else Who Needed to Self Inject? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=yes definitely.

    Time frame: Day 84

  46. Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 26, Day 84

    Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Likely Is It That You Would Use the Device Again - Q26: If Your Doctor Advised You to, How Likely Would You to Be Continue Injecting Regularly With this Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very likely.

    Time frame: Day 84

  47. Age Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean age was determined for each cluster of participants.

    Time frame: Day 84

  48. Percentage of Male Participants Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all male and female participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The percentage of participants who were male was determined for each cluster of participants.

    Time frame: Day 84

  49. Percentage of Female Participants Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all male and female participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants who were female was determined for each cluster of participants.

    Time frame: Day 84

  50. Percentage of Participants With Only Reading/Writing Capacity Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants in all 3 social-educational level (only reading/writing capacity, high-school level, university level) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants with only reading/writing capacity was determined for each cluster of participants.

    Time frame: Day 84

  51. Percentage of Participants at High School/Baccalaureate Level Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants in all 3 social-educational level (only reading/writing capacity, high-school level, university level) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants at high school/baccalaureate level was determined for each cluster of participants.

    Time frame: Day 84

  52. Percentage of Participants at University Level Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants in all 3 social-educational level (only reading/writing capacity, high-school level, university level) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants at the university level was determined for each cluster of participants.

    Time frame: Day 84

  53. HAD Anxiety Subscale Score Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean HAD Anxiety Subscale Score was determined for each cluster of participants. Score ranged from 0 to 21. Lower scores indicated better health.

    Time frame: Day 84

  54. HAD Depression Subscale Score Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean HAD Depression Subscale Score was determined for each cluster of participants. Score ranged from 0 to 21. Lower scores indicated better health.

    Time frame: Day 84

  55. PAM Score Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean PAM Score was determined for each cluster of participants. Calibrated PAM scale score ranged from 0 to 100.Higher scores indicated more confidence in managing participants' condition and lifestyle.

    Time frame: Day 84

  56. Percentage of Participants With Prior Injection Experience Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The percentage of participants with prior injection experience was determined for each cluster of participants.

    Time frame: Day 84

  57. Percentage of Participants With Prior Self-Injection Experience Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using a multiple correspondence analysis and an ascending hierarchical classification. The percentage of participants with prior self-injection experience was determined for each cluster of participants.

    Time frame: Day 84

  58. RA Duration Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean RA Duration was determined for each cluster of participants.

    Time frame: Day 84

  59. DAS28 Score Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean DAS28 Score was determined for each cluster of participants. Score ranged from 0 to 9.4. Interpretation: disease activity is low when score ≤3.2, moderate when 3.2\<score≤5.1, or high when score \>5.1, remission when score \<2.6.

    Time frame: Day 84

  60. Participant's Global Assessment of RA Activity Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Participants' mean Global Assessment of RA Activity was determined for each cluster of participants. VAS scores ranged from 0 (inactive) to 100 mm (extremely active).

    Time frame: Day 84

  61. Physician's Global Assessment of RA Activity Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Mean Physician's Global Assessment of RA Activity was determined for each cluster of participants. VAS scores ranged from 0 (inactive) to 100 mm (extremely active).

    Time frame: Day 84

  62. HAQ-DI Score Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean HAQ-DI Score, assessing the extent of functional ability, was determined for each cluster of participants. Disability score ranged from 0=normal or no difficulty to 3=unable to do. Lower HAQ-DI scores indicated better health.

    Time frame: Day 84

  63. Percentage of Participants Receiving Only 1 DMARD Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all participants receiving DMARDs (only 1, only 2, only 3, 4 or more DMARDs) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants receiving only 1 DMARD was determined for each cluster of participants.

    Time frame: Day 84

  64. Percentage of Participants Receiving Only 2 DMARDs Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all participants receiving DMARDs (only 1, only 2, only 3, 4 or more DMARDs) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants receiving only 2 DMARDs was determined for each cluster of participants.

    Time frame: Day 84

  65. Percentage of Participants Receiving Only 3 DMARDs Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all participants receiving DMARDs (only 1, only 2, only 3, 4 or more DMARDs) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants receiving only 3 DMARDs was determined for each cluster of participants.

    Time frame: Day 84

  66. Participant Satisfaction at Endpoint Associated With Participant Perception

    Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Mean participant satisfaction was determined for each cluster of participants. Satisfaction was scored on a 10-point scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction.

    Time frame: Day 84

07

Results

Posted Mar 28, 2013

Participant flow

Participant flow — Overall Study
MilestoneEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Started325315
Modified intent-to-treat population324313
Completed299294
Not completed2621
Withdrew: Adverse event1913
Withdrew: Withdrawal by subject16
Withdrew: Physician decision20
Withdrew: Discontinuation of study by sponsor10
Withdrew: Protocol violation21
Withdrew: Failed to return10
Withdrew: Other01

Outcome measures

PrimaryParticipant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Modified Intent-to-treat Population

Participant's response to the question "How satisfied are you with your injection device?" scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher score indicated greater satisfaction with the delivery mechanism.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Modified Intent-to-treat Population
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Participant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Modified Intent-to-treat Population8.3 ± 2.47.2 ± 2.6
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · ANOVA · p = <0.001 · Mean difference (net): 1.11 · 95% CI 0.71 to 1.50ANOVA=analysis of variance
PrimaryParticipant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Per-Protocol Population

Participant's response to the question "How satisfied are you with your injection device?" scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher score indicated greater satisfaction with the delivery mechanism.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Per-Protocol Population
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Participant Satisfaction on Day 84 for 2 Different Delivery Mechanisms for Etanercept, Per-Protocol Population8.4 ± 2.27.2 ± 2.6
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · ANOVA · p = <0.001 · Mean difference (net): 1.25 · 95% CI 0.85 to 1.64
SecondaryPercentage of Participants on Day 28 Satisfied With Either of the Different Delivery Mechanisms for Etanercept

Percentage of participants answering "Yes" to the question "Are you satisfied with your injection device?"

Time frame:
Day 28
Reported as:
Number · percentage of participants
Percentage of Participants on Day 28 Satisfied With Either of the Different Delivery Mechanisms for Etanercept
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Percentage of Participants on Day 28 Satisfied With Either of the Different Delivery Mechanisms for Etanercept92.788.6
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE Model+Logit Link+Binomial Distributn · p = 0.058 · Odds ratio (or): 1.73 · 95% CI 0.98 to 3.05GEE=Generalized estimating equation Distribn=distribution
SecondaryPercentage of Participants on Day 84 Satisfied With Either of the Delivery Mechanisms for Etanercept

Percentage of participants answering "Yes" to the question "Are you satisfied with your injection device?"

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants on Day 84 Satisfied With Either of the Delivery Mechanisms for Etanercept
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Percentage of Participants on Day 84 Satisfied With Either of the Delivery Mechanisms for Etanercept93.387.7
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE Model+Logit Link+Binomial Distributn · p = 0.019 · Odds ratio (or): 1.96 · 95% CI 1.12 to 3.43
SecondaryParticipant Satisfaction by Age for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. Results are reported by age categories: \<=46 years, \>46-55 years, \>55-65 years, \>65 years.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Age for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
<=46 years8.18 ± 2.526.58 ± 2.73
>46 - 55 years8.81 ± 1.847.01 ± 2.70
>55 - 65 years8.31 ± 2.447.56 ± 2.57
>65 years7.74 ± 2.547.63 ± 2.28
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.160 · Regression coefficient: 0.11 · 95% CI -0.04 to 0.27
SecondaryParticipant Satisfaction by Gender for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Gender for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Male (n=85, 77)8.45 ± 2.318.13 ± 2.07
Female (n=239, 236)8.21 ± 2.406.89 ± 2.72
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.001 · Regression coefficients: -0.75 · 95% CI -1.20 to -0.29
SecondaryParticipant Satisfaction by Socio-Educational Level for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. Participants were categorized into those having only reading/writing capacity, those at the high-school/baccalaureate level, and those at the university level.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Socio-Educational Level for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Only Reading/Writing Capacity (n=122, 129)8.11 ± 2.247.53 ± 2.44
High School/Baccalaureate Level (n=147, 136)8.32 ± 2.506.90 ± 2.87
University Level (n=54, 46)8.44 ± 2.367.09 ± 2.38
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.676 · Regression coefficient: -0.18 · 95% CI -0.62 to 0.26
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.676 · Regression coefficient: 0.00 · 95% CI -0.59 to 0.60
SecondaryParticipant Satisfaction by the Hospital Anxiety Depression (HAD) Anxiety Subscale Score for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. The HAD scale assessed participants' levels of anxiety and depression over the past week; total 14 questions, odd-numbered questions related to anxiety. Responses scored on a 4-point scale; each question was graded in a different way. Anxiety subscale scores ranged from 0 to 21. Lower HAD Anxiety subscale scores indicated better health. Categories are anxiety subscale scores.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by the Hospital Anxiety Depression (HAD) Anxiety Subscale Score for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
HAD anxiety subscale score <=48.56 ± 2.297.67 ± 2.44
HAD anxiety subscale score >4 - 78.13 ± 2.477.32 ± 2.56
HAD anxiety subscale score >7 - 107.87 ± 2.686.93 ± 2.53
HAD anxiety subscale score >108.46 ± 2.066.67 ± 2.97
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.020 · Regression coefficient: -0.28 · 95% CI -0.52 to -0.05
SecondaryParticipant Satisfaction by the HAD Depression Subscale Score for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. The HAD scale assessed participants' levels of anxiety and depression over the past week; total 14 questions, even-numbered questions related to depression. Responses scored on a 4-point scale; each question was graded in a different way. Depression subscale scores ranged from 0 to 21. Lower HAD Depression subscale scores indicated better health. Categories are depression subscale scores.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by the HAD Depression Subscale Score for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
HAD depression subscale score <=38.75 ± 2.027.70 ± 2.37
HAD depression subscale score >3 - 57.97 ± 2.587.35 ± 2.66
HAD depression subscale score >5 - 8.28.28 ± 2.397.17 ± 2.49
HAD depression subscale score >8.28.03 ± 2.486.23 ± 2.94
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.008 · Regression coefficient: -0.35 · 95% CI -0.61 to -0.09
SecondaryParticipant Satisfaction by Patient Activation Measure (PAM) Score for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. The 13-item short form of the PAM survey assessed participants' knowledge, skill, and confidence for self-management; calibrated scale score ranged from 0 to 100. Higher scores indicated more confidence in managing participants' condition and lifestyle. Results reported by PAM score: \<=49.9, \>49.9-56.4, \>56.4-66, \>66.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Patient Activation Measure (PAM) Score for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
PAM scale score <=49.97.91 ± 2.587.06 ± 2.72
PAM scale score >49.9 - 56.48.48 ± 2.147.42 ± 2.36
PAM scale score >56.4 - 668.02 ± 2.566.97 ± 2.83
PAM scale score >668.49 ± 2.327.38 ± 2.63
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.030 · Regression coefficient: 0.17 · 95% CI 0.02 to 0.32
SecondaryParticipant Satisfaction by Prior Self-Injection Experience for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Participants were grouped into 2 categories: those who did and did not have prior self-injection experience. Higher scores indicated greater satisfaction in the delivery mechanism.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Prior Self-Injection Experience for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Self-Injection Experience (n=97, 101)8.10 ± 2.516.57 ± 2.51
No Self-Injection Experience (n=227, 212)8.34 ± 2.327.49 ± 2.64
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.006 · Regression coefficient: -0.60 · 95% CI -1.03 to -0.18
SecondaryParticipant Satisfaction by Duration of Rheumatoid Arthritis (RA) for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. Results are reported by duration of RA: \<=3 years, \>3-6 years, \>6-13 years, \>13 years.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Duration of Rheumatoid Arthritis (RA) for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
RA duration <=3 years7.99 ± 2.567.32 ± 2.59
RA duration >3 - 6 years8.39 ± 2.346.68 ± 2.83
RA duration >6 - 13 years8.52 ± 2.377.24 ± 2.67
RA duration >13 years8.29 ± 2.147.40 ± 2.47
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.278 · Regression coefficient: 0.06 · 95% CI -0.05 to 0.18
SecondaryParticipant Satisfaction by 28-joint Disease Activity Score (DAS28) for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. DAS28 includes a 28 tender joint count, a 28 swollen joint count, erythrocyte sedimentation rate, and a general health assessment on a visual analog scale. Score ranged from 0 to 9.4. Interpretation: disease activity is low when score ≤3.2, moderate when 3.2\<score≤5.1, or high when score \>5.1, remission when score \<2.6. Results are reported by categories of DAS28 score: \<=4.7, \>4.7-5.4, \>5.4-6.2, \>6.2.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by 28-joint Disease Activity Score (DAS28) for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
DAS28 score <=4.78.24 ± 2.507.01 ± 2.50
DAS28 score >4.7 - 5.48.11 ± 2.597.36 ± 2.64
DAS28 score >5.4 - 6.28.45 ± 2.197.58 ± 2.55
DAS28 score >6.28.31 ± 2.236.90 ± 2.85
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.749 · Regression coefficient: 0.03 · 95% CI -0.15 to 0.21
SecondaryParticipant Satisfaction by Participant's Global Assessment of RA Activity for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. Participants' global assessment of disease activity was measured on a visual analog scale (VAS) ranging from 0 (inactive) to 100 millimeter (mm) (extremely active). Results are reported by VAS scores observed for the participant's global assessment of RA activity: \<=50 mm, \>50-67 mm, \>67-79 mm, \>79 mm.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Participant's Global Assessment of RA Activity for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
VAS score for participant's assessment <=50 mm8.45 ± 2.147.55 ± 2.43
VAS score for participant's assessment >50 - 678.41 ± 2.157.31 ± 2.61
VAS score for participant's assessment >67 - 79 mm8.07 ± 2.607.11 ± 2.53
VAS score for participant's assessment >79 mm8.17 ± 2.596.88 ± 2.83
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.105 · Regression coefficient: -0.08 · 95% CI -0.18 to 0.02
SecondaryParticipant Satisfaction by Physician's Global Assessment of RA Activity for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. Physicians' global assessment of disease activity was measured on a VAS ranging from 0 (inactive) to 100 mm (extremely active). Results are reported by VAS scores observed for physician's global assessment of RA activity: \<=47 mm, \>47-61 mm, \>61-72 mm, \>72 mm.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Physician's Global Assessment of RA Activity for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
VAS score for physician's assessment <=47 mm8.23 ± 2.407.40 ± 2.24
VAS score for physician's assessment >47 - 61 mm8.36 ± 2.006.92 ± 2.73
VAS score for physician's assessment >61 - 72 mm8.03 ± 2.757.14 ± 2.96
VAS score for physician's assessment >72 mm8.47 ± 2.347.32 ± 2.59
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.819 · Regression coefficient: 0.01 · 95% CI -0.10 to 0.12
SecondaryParticipant Satisfaction by Health Assessment Questionnaire - Disability Index (HAQ-DI) for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction with the delivery mechanism. The 20-item HAQ-DI assessed the extent of participants' functional ability. Calculation yielded a single disability score from 0=normal or no difficulty to 3=unable to do. Lower HAQ-DI scores indicated better health. Results are reported by categories of HAQ-DI scores observed: \<=0.9, \>0.9-1.4, \>1.4-1.9, \>1.9.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Health Assessment Questionnaire - Disability Index (HAQ-DI) for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
HAQ-DI scale score <=0.98.61 ± 2.077.67 ± 2.24
HAQ-DI scale score >0.9 - 1.48.27 ± 2.377.40 ± 2.39
HAQ-DI scale score >1.4 - 1.98.33 ± 2.377.03 ± 2.84
HAQ-DI scale score >1.97.96 ± 2.586.57 ± 2.95
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.012 · Regression coefficient: -0.39 · 95% CI -0.69 to -0.09
SecondaryParticipant Satisfaction by Maximum Combination of Disease-Modifying Antirheumatic Drug (DMARD) Use for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction for the delivery mechanism. Participants were categorized into those who received only 1 DMARD, only 2 DMARDs, only 3 DMARDs, and at least 3 DMARDs.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Maximum Combination of Disease-Modifying Antirheumatic Drug (DMARD) Use for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
1 DMARD (n=177, 162)8.29 ± 2.417.23 ± 2.66
2 DMARDs (n=123, 123)8.18 ± 2.427.19 ± 2.53
3 DMARDs (n=16, 26)8.94 ± 1.846.85 ± 3.04
At Least 4 DMARDs (n=4, 0)9.50 ± 1.00NA ± NA
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.541 · Regression coefficient: -0.10 · 95% CI -0.52 to 0.32
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.541 · Regression coefficient: -0.14 · 95% CI -0.97 to 0.68
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.541 · Regression coefficient: 1.72 · 95% CI -0.82 to 4.25
SecondaryParticipant Satisfaction by Prior Injection Experience for 2 Different Delivery Mechanisms for Etanercept

Participant satisfaction scored on a 10-point ordinal scale: 0=totally dissatisfied to 10=totally satisfied. Participants were grouped into 2 categories: those who did and did not have prior injection experience. Higher scores indicated greater satisfaction with the delivery mechanism.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction by Prior Injection Experience for 2 Different Delivery Mechanisms for Etanercept
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Prior Injection Experience (n=177, 174)8.29 ± 2.357.05 ± 2.53
No Prior Injection Experience (n=147, 139)8.24 ± 2.427.37 ± 2.75
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · Regression, Linear · p = 0.465 · Regression coefficient: -0.15 · 95% CI -0.55 to 0.25
SecondaryShort Form of the State-Trait Anxiety Inventory (SF-STAI) Global Score

The SF-STAI consisted of 6 questions, each scored from 1 to 4. Total score ranged from 6=less anxiety to 24=more anxiety. Higher score indicated that the participant was more anxious.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Short Form of the State-Trait Anxiety Inventory (SF-STAI) Global Score
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Short Form of the State-Trait Anxiety Inventory (SF-STAI) Global Score10.0 ± 3.710.5 ± 3.4
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.154 · Mean difference (net): -0.41 · 95% CI -0.97 to 0.15
SecondaryDevice Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Life as a Whole?

Score indicated satisfaction in response to the question "Thinking about your own life and personal circumstances, how satisfied are you with your life as a whole?" Score ranged from 0=completely dissatisfied to 10=completely satisfied. Higher scores indicated greater satisfaction.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Life as a Whole?
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Life as a Whole?7.3 ± 2.27.1 ± 2.1
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.212 · Mean difference (net): 0.22 · 95% CI -0.12 to 0.56
SecondaryDevice Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Health?

Score indicated satisfaction in response to the question "How satisfied are you with your health?" Score ranged from 0=completely dissatisfied to 10=completely satisfied. Higher scores indicated greater satisfaction.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Health?
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With His/Her Health?6.1 ± 2.56.1 ± 2.4
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.965 · Mean difference (net): -0.01 · 95% CI -0.39 to 0.37
SecondaryDevice Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With All the Treatments He/She is Currently Receiving for RA?

Score indicated satisfaction in response to the question "How satisfied are you with all the treatments you are currently receiving for your rheumatoid arthritis?" Score ranged from 0=completely dissatisfied to 10=completely satisfied. Higher scores indicated greater satisfaction.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With All the Treatments He/She is Currently Receiving for RA?
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Device Attributes and Participant Perception Questionnaire: How Satisfied Is the Subject With All the Treatments He/She is Currently Receiving for RA?7.4 ± 2.47.3 ± 2.4
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.519 · Mean difference (net): 0.12 · 95% CI -0.25 to 0.50
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 1, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q1: Overall, How Easy Was It to Perform an Injection with this Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 1, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Very Easy69.554.2
1=Easy17.126.1
2=Neither Easy nor Difficult7.012.5
3=Difficult4.75.4
4=Very Difficult1.71.7
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 1.85 · 95% CI 1.33 to 2.57
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 2, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q2: How Easy Was It to Learn to Use the Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 2, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Very Easy75.362.9
1=Easy15.930.6
2=Neither Easy nor Difficult5.45.1
3=Difficult1.71.0
4=Very Difficult1.70.3
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.007 · Odds ratio (or): 1.61 · 95% CI 1.14 to 2.29
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 3, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q3: How Easy Is It to Dispose Of the Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 3, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Very Easy85.474.9
1=Easy10.419.2
2=Neither Easy nor Difficult2.44.8
3=Difficult1.01.0
4=Very Difficult0.70.0
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.002 · Odds ratio (or): 1.92 · 95% CI 1.26 to 2.92
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 4, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q4: How Easy Is It to Know When the Injection Is Completed? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 4, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Very Easy81.163.4
1=Easy13.126.1
2=Neither Easy nor Difficult2.77.8
3=Difficult2.72.4
4=Very Difficult0.30.3
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 2.39 · 95% CI 1.65 to 3.46
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 5, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q5: How Easy Is It to Hold the Device Whilst Injecting? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 5, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Very Easy63.747.3
1=Easy23.326.9
2=Neither Easy nor Difficult7.916.0
3=Difficult2.77.1
4=Very Difficult2.42.7
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 2.06 · 95% CI 1.50 to 2.83
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 6, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q6: Did You Feel any Hand Discomfort Whilst Using the Device? Participants specified their responses on a 5-point Likert scale: 0=very easy to 4=very difficult.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 6, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Very Easy69.054.3
1=Easy18.519.9
2=Neither Easy nor Difficult7.715.1
3=Difficult3.47.6
4=Very Difficult1.33.1
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 2.00 · 95% CI 1.44 to 2.78
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 7, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Easy You Find the Device Is to Use - Q7: How Long Does It Take to Perform the Injection, Including any Preparation and Disposal? Participants specified their responses on a 5-point Likert scale: 0=\<5 minutes to 4=\>30 minutes.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 7, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
<5 minutes64.757.6
5-10 minutes22.030.8
11-20 minutes6.86.8
21-30 minutes5.13.7
>30 minutes1.41.0
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.184 · Odds ratio (or): 1.25 · 95% CI 0.90 to 1.72
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 8, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Convenient You Find the Device Is to Use - Q8: How Much Do You Think Injecting Etanercept Will Interfere with Your Ability to Enjoy Social or Leisure Activities? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 8, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all71.164.3
1=A little14.317.7
2=Somewhat7.011.3
3=A lot4.74.7
4=Very much3.02.0
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.106 · Odds ratio (or): 1.32 · 95% CI 0.94 to 1.85
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 9, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Convenient You Find the Device Is to Use - Q9: Do You Think Injecting Etanercept Will Interfere with Your Usual Daily Activities? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 9, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all78.873.2
1=A little12.315.7
2=Somewhat5.65.7
3=A lot2.34.3
4=Very much1.01.0
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.112 · Odds ratio (or): 1.35 · 95% CI 0.93 to 1.96
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 10, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Convenient You Find the Device Is to Use - Q10: How Much Do You Think Injecting Etanercept Will Interfere with Travelling on Holiday/ Business/Visiting? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 10, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all60.548.0
1=A little20.623.0
2=Somewhat9.317.7
3=A lot7.07.7
4=Very much2.73.7
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.002 · Odds ratio (or): 1.65 · 95% CI 1.21 to 2.24
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 11, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q11: Overall, How Confident Are You in Your Management of Your Weekly Injections? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 11, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all2.32.0
1=A little1.65.4
2=Somewhat6.28.4
3=A lot22.030.4
4=Very much67.953.8
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 0.57 · 95% CI 0.41 to 0.78
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 12, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q12: How Confident Are You That You Inject the Right Amount of Medicine Every Time? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 12, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all1.31.3
1=A little2.35.0
2=Somewhat5.67.3
3=A lot17.721.3
4=Very much73.165.0
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.022 · Odds ratio (or): 0.67 · 95% CI 0.47 to 0.94
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 13, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q13: How Confident Are You That You Can Inject Yourself Properly with the Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 13, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all3.01.7
1=A little3.06.0
2=Somewhat5.98.4
3=A lot17.223.4
4=Very much71.060.5
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.009 · Odds ratio (or): 0.64 · 95% CI 0.46 to 0.89
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 14, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q14: Are You Confident That You Have Good Control over the Injection Process? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 14, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all2.31.7
1=A little2.64.0
2=Somewhat5.67.7
3=A lot17.025.1
4=Very much72.561.5
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.007 · Odds ratio (or): 0.63 · 95% CI 0.45 to 0.88
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 15, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Confident You Feel When Using the Device - Q15: How Confident Are You That You Injected Yourself Successfully? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 15, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all2.61.0
1=A little2.03.7
2=Somewhat4.98.7
3=A lot20.125.8
4=Very much70.460.9
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.014 · Odds ratio (or): 0.66 · 95% CI 0.47 to 0.92
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 16, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q16: Overall, How Nervous Do You Feel about Your Injections? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 16, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all66.749.0
1=A little19.325.3
2=Somewhat8.815.0
3=A lot3.67.0
4=Very much1.63.7
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 2.10 · 95% CI 1.53 to 2.88
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 17, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q17: Overall, How Nervous Do You Feel about Inserting the Needle into Your Skin? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 17, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all64.345.8
1=A little21.327.8
2=Somewhat6.912.4
3=A lot5.98.4
4=Very much1.65.7
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 2.14 · 95% CI 1.57 to 2.91
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 18, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q18: Do You Dislike Injecting Yourself with this Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 18, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all70.846.0
1=A little17.422.0
2=Somewhat6.614.3
3=A lot3.99.7
4=Very much1.38.0
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 3.08 · 95% CI 2.23 to 4.25
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 19, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How You Feel When Using the Device - Q19: Overall, Are You Emotionally Distressed or Anxious about Your Injections? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 19, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all70.657.2
1=A little18.022.7
2=Somewhat7.28.7
3=A lot2.36.4
4=Very much2.05.0
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 1.88 · 95% CI 1.35 to 2.62
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 20, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: What Characteristics of the Device You Appreciate - Q20: How Much Do You Like the Look of the Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 20, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all1.610.4
1=A little3.610.1
2=Somewhat19.435.9
3=A lot32.624.8
4=Very much42.818.8
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 0.25 · 95% CI 0.18 to 0.34
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 21, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: What Characteristics of the Device You Appreciate - Q21: How Much Do You Like the Feel of the Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 21, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all3.09.5
1=A little3.010.8
2=Somewhat20.135.1
3=A lot33.627.0
4=Very much40.517.6
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 0.26 · 95% CI 0.19 to 0.36
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 22, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: What Characteristics of the Device You Appreciate - Q22: How Much Does the Device Look Like Something You Would Feel Comfortable to Use? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 22, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all4.012.1
1=A little3.68.8
2=Somewhat18.231.6
3=A lot27.529.0
4=Very much46.718.5
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 0.27 · 95% CI 0.20 to 0.36
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 23, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: Side Effects from Using the Device - Q23: Do You Experience Pain During or Immediately After the Injection? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 23, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all36.239.6
1=A little28.029.9
2=Somewhat20.417.8
3=A lot11.89.1
4=Very much3.63.7
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.196 · Odds ratio (or): 0.82 · 95% CI 0.61 to 1.11
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 24, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Likely Is It That You Would Use the Device Again - Q24: To What Extent Would You Consider Alternative Devices If You Were to Continue on Etanercept? Participants specified their responses on a 5-point Likert scale: 0=very little to 4=very much.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 24, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Very little48.828.4
1=A little8.821.1
2=Somewhat20.822.8
3=A lot8.311.2
4=Very much13.316.4
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = 0.001 · Odds ratio (or): 1.74 · 95% CI 1.25 to 2.42
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 25, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Likely Is It That You Would Use the Device Again - Q25: Would You Recommend this Device to Someone Else Who Needed to Self Inject? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=yes definitely.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 25, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all3.34.4
1=Rarely2.35.4
2=Occasionally7.624.7
3=Often12.319.3
4=Yes definitely74.446.3
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 0.30 · 95% CI 0.21 to 0.42
SecondaryPercentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 26, Day 84

Percentage of participants responding to Device Attributes and Subject Perceptions Questionnaire: How Likely Is It That You Would Use the Device Again - Q26: If Your Doctor Advised You to, How Likely Would You to Be Continue Injecting Regularly With this Device? Participants specified their responses on a 5-point Likert scale: 0=not at all to 4=very likely.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Responding to the Device Attribute and Participant Questionnaire, Question 26, Day 84
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
0=Not at all3.03.7
1=Usually not3.07.7
2=Occasionally9.317.8
3=Likely11.018.9
4=Very likely73.851.9
Statistical analysis
  • Enbrel 50 mg Autoinjector vs Enbrel 50 mg Prefilled Syringe · GEE model+logit link+multinomial distrib · p = <0.001 · Odds ratio (or): 0.40 · 95% CI 0.29 to 0.56
SecondaryAge Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean age was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Mean · years
Age Associated With Participant Perception
yearsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)54.3 ± 12.356.0 ± 13.0
Cluster 2, Satisfied (n=51, 71)55.1 ± 11.954.1 ± 12.5
Cluster 3, Not Satisfied (n=47, 92)54.0 ± 14.652.7 ± 13.2
Statistical analysis
  • Enbrel 50 mg Autoinjector · ANOVA · p = 0.896
  • Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.166
SecondaryPercentage of Male Participants Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all male and female participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The percentage of participants who were male was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of male participants
Percentage of Male Participants Associated With Participant Perception
percentage of male participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)30.930.1
Cluster 2, Satisfied (n=51, 71)23.529.6
Cluster 3, Not Satisfied (n=47, 92)14.914.1
Statistical analysis
  • Enbrel 50 mg Autoinjector · Chi-squared · p = 0.069
  • Enbrel 50 mg Prefilled Syringe · Chi-squared · p = 0.015
SecondaryPercentage of Female Participants Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all male and female participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants who were female was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of female participants
Percentage of Female Participants Associated With Participant Perception
percentage of female participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)69.169.9
Cluster 2, Satisfied (n=51, 71)76.570.4
Cluster 3, Not Satisfied (n=47, 92)85.185.9
Statistical analysis
  • Enbrel 50 mg Autoinjector · Chi-squared · p = 0.069
  • Enbrel 50 mg Prefilled Syringe · Chi-squared · p = 0.015
SecondaryPercentage of Participants With Only Reading/Writing Capacity Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants in all 3 social-educational level (only reading/writing capacity, high-school level, university level) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants with only reading/writing capacity was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants With Only Reading/Writing Capacity Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=203, 132)35.044.7
Cluster 2, Satisfied (n=51, 70)45.142.9
Cluster 3, Not Satisfied (n=47, 92)36.233.7
Statistical analysis
  • Enbrel 50 mg Autoinjector · Chi-squared · p = 0.652
  • Enbrel 50 mg Prefilled Syringe · Chi-squared · p = 0.459
SecondaryPercentage of Participants at High School/Baccalaureate Level Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants in all 3 social-educational level (only reading/writing capacity, high-school level, university level) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants at high school/baccalaureate level was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants at High School/Baccalaureate Level Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=203, 132)48.843.2
Cluster 2, Satisfied (n=51, 70)37.341.4
Cluster 3, Not Satisfied (n=47, 92)48.947.8
Statistical analysis
  • Enbrel 50 mg Autoinjector · Chi-squared · p = 0.652
  • Enbrel 50 mg Prefilled Syringe · Chi-squared · p = 0.459
SecondaryPercentage of Participants at University Level Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants in all 3 social-educational level (only reading/writing capacity, high-school level, university level) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants at the university level was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants at University Level Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=203, 132)16.312.1
Cluster 2, Satisfied (n=51, 70)17.615.7
Cluster 3, Not Satisfied (n=47, 92)14.918.5
Statistical analysis
  • Enbrel 50 mg Autoinjector · Chi-squared · p = 0.652
  • Enbrel 50 mg Prefilled Syringe · Chi-squared · p = 0.459
SecondaryHAD Anxiety Subscale Score Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean HAD Anxiety Subscale Score was determined for each cluster of participants. Score ranged from 0 to 21. Lower scores indicated better health.

Time frame:
Day 84
Reported as:
Mean · units on a scale
HAD Anxiety Subscale Score Associated With Participant Perception
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=203, 132)6.8 ± 4.26.4 ± 4.5
Cluster 2, Satisfied (n=51, 71)7.9 ± 3.87.4 ± 4.0
Cluster 3, Not Satisfied (n=47, 92)8.3 ± 3.78.7 ± 3.8
Statistical analysis
  • Enbrel 50 mg Autoinjector · Kruskal-Wallis · p = 0.023
  • Enbrel 50 mg Prefilled Syringe · Kruskal-Wallis · p = <0.001
SecondaryHAD Depression Subscale Score Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean HAD Depression Subscale Score was determined for each cluster of participants. Score ranged from 0 to 21. Lower scores indicated better health.

Time frame:
Day 84
Reported as:
Mean · units on a scale
HAD Depression Subscale Score Associated With Participant Perception
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=203, 133)5.8 ± 3.85.0 ± 3.9
Cluster 2, Satisfied (n=51, 71)6.6 ± 3.95.2 ± 3.5
Cluster 3, Not Satisfied (n=47, 92)7.3 ± 4.16.7 ± 3.6
Statistical analysis
  • Enbrel 50 mg Autoinjector · Kruskal-Wallis · p = 0.038
  • Enbrel 50 mg Prefilled Syringe · Kruskal-Wallis · p = <0.001
SecondaryPAM Score Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean PAM Score was determined for each cluster of participants. Calibrated PAM scale score ranged from 0 to 100.Higher scores indicated more confidence in managing participants' condition and lifestyle.

Time frame:
Day 84
Reported as:
Mean · units on a scale
PAM Score Associated With Participant Perception
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=198, 131)61.6 ± 13.160.1 ± 14.0
Cluster 2, Satisfied (n=51, 71)56.6 ± 11.556.5 ± 11.7
Cluster 3, Not Satisfied (n=47, 91)57.4 ± 13.855.3 ± 11.9
Statistical analysis
  • Enbrel 50 mg Autoinjector · ANOVA · p = 0.018
  • Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.019
SecondaryPercentage of Participants With Prior Injection Experience Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The percentage of participants with prior injection experience was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants With Prior Injection Experience Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)52.954.9
Cluster 2, Satisfied (n=51, 71)47.154.9
Cluster 3, Not Satisfied (n=47, 92)70.259.8
Statistical analysis
  • Enbrel 50 mg Autoinjector · Chi-squared · p = 0.049
  • Enbrel 50 mg Prefilled Syringe · Chi-squared · p = 0.736
SecondaryPercentage of Participants With Prior Self-Injection Experience Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using a multiple correspondence analysis and an ascending hierarchical classification. The percentage of participants with prior self-injection experience was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants With Prior Self-Injection Experience Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)31.931.6
Cluster 2, Satisfied (n=51, 71)15.736.6
Cluster 3, Not Satisfied (n=47, 92)38.331.5
Statistical analysis
  • Enbrel 50 mg Autoinjector · Chi-squared · p = 0.033
  • Enbrel 50 mg Prefilled Syringe · Chi-squared · p = 0.730
SecondaryRA Duration Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean RA Duration was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Mean · years
RA Duration Associated With Participant Perception
yearsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)8.6 ± 8.09.7 ± 9.1
Cluster 2, Satisfied (n=51, 71)9.4 ± 8.28.6 ± 8.1
Cluster 3, Not Satisfied (n=47, 92)8.9 ± 8.910.3 ± 8.4
Statistical analysis
  • Enbrel 50 mg Autoinjector · ANOVA · p = 0.838
  • Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.483
SecondaryDAS28 Score Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean DAS28 Score was determined for each cluster of participants. Score ranged from 0 to 9.4. Interpretation: disease activity is low when score ≤3.2, moderate when 3.2\<score≤5.1, or high when score \>5.1, remission when score \<2.6.

Time frame:
Day 84
Reported as:
Mean · units on a scale
DAS28 Score Associated With Participant Perception
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=197, 128)5.3 ± 1.15.5 ± 1.1
Cluster 2, Satisfied (n=50, 70)5.4 ± 1.35.0 ± 1.3
Cluster 3, Not Satisfied (n=45, 89)5.5 ± 1.15.5 ± 1.2
Statistical analysis
  • Enbrel 50 mg Autoinjector · Kruskal-Wallis · p = 0.466
  • Enbrel 50 mg Prefilled Syringe · Kruskal-Wallis · p = 0.035
SecondaryParticipant's Global Assessment of RA Activity Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Participants' mean Global Assessment of RA Activity was determined for each cluster of participants. VAS scores ranged from 0 (inactive) to 100 mm (extremely active).

Time frame:
Day 84
Reported as:
Mean · millimeters on the VAS
Participant's Global Assessment of RA Activity Associated With Participant Perception
millimeters on the VASEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=202, 132)63.5 ± 20.262.5 ± 21.4
Cluster 2, Satisfied (n=50, 71)64.7 ± 19.257.5 ± 24.0
Cluster 3, Not Satisfied (n=46, 91)65.7 ± 19.568.2 ± 17.6
Statistical analysis
  • Enbrel 50 mg Autoinjector · ANOVA · p = 0.784
  • Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.006
SecondaryPhysician's Global Assessment of RA Activity Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Mean Physician's Global Assessment of RA Activity was determined for each cluster of participants. VAS scores ranged from 0 (inactive) to 100 mm (extremely active).

Time frame:
Day 84
Reported as:
Mean · millimeters on the VAS
Physician's Global Assessment of RA Activity Associated With Participant Perception
millimeters on the VASEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=203, 132)58.8 ± 18.660.8 ± 19.0
Cluster 2, Satisfied (n=50, 71)58.3 ± 18.357.4 ± 21.6
Cluster 3, Not Satisfied (n=46, 92)60.3 ± 16.860.1 ± 16.6
Statistical analysis
  • Enbrel 50 mg Autoinjector · ANOVA · p = 0.843
  • Enbrel 50 mg Prefilled Syringe · ANOVA · p = 0.461
SecondaryHAQ-DI Score Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. The mean HAQ-DI Score, assessing the extent of functional ability, was determined for each cluster of participants. Disability score ranged from 0=normal or no difficulty to 3=unable to do. Lower HAQ-DI scores indicated better health.

Time frame:
Day 84
Reported as:
Mean · units on a scale
HAQ-DI Score Associated With Participant Perception
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)1.4 ± 0.71.3 ± 0.7
Cluster 2, Satisfied (n=51, 71)1.5 ± 0.61.3 ± 0.6
Cluster 3, Not Satisfied (n=45, 92)1.5 ± 0.61.6 ± 0.6
Statistical analysis
  • Enbrel 50 mg Autoinjector · Kruskal-Wallis · p = 0.150
  • Enbrel 50 mg Prefilled Syringe · Kruskal-Wallis · p = 0.002
SecondaryPercentage of Participants Receiving Only 1 DMARD Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all participants receiving DMARDs (only 1, only 2, only 3, 4 or more DMARDs) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants receiving only 1 DMARD was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Receiving Only 1 DMARD Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=112, 73)55.455.3
Cluster 2, Satisfied (n=26, 38)52.053.5
Cluster 3, Not Satisfied (n=25, 44)54.348.4
Statistical analysis
  • Enbrel 50 mg Autoinjector · Cochran-Mantel-Haenszel · p = 0.934
  • Enbrel 50 mg Prefilled Syringe · Cochran-Mantel-Haenszel · p = 0.656
SecondaryPercentage of Participants Receiving Only 2 DMARDs Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all participants receiving DMARDs (only 1, only 2, only 3, 4 or more DMARDs) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants receiving only 2 DMARDs was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Receiving Only 2 DMARDs Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=77, 49)38.137.1
Cluster 2, Satisfied (n=21, 26)42.036.6
Cluster 3, Not Satisfied (n=19, 40)41.344.0
Statistical analysis
  • Enbrel 50 mg Autoinjector · Cochran-Mantel-Haenszel · p = 0.934
  • Enbrel 50 mg Prefilled Syringe · Cochran-Mantel-Haenszel · p = 0.656
SecondaryPercentage of Participants Receiving Only 3 DMARDs Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, all participants receiving DMARDs (only 1, only 2, only 3, 4 or more DMARDs) were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Percentage of participants receiving only 3 DMARDs was determined for each cluster of participants.

Time frame:
Day 84
Reported as:
Number · percentage of participants
Percentage of Participants Receiving Only 3 DMARDs Associated With Participant Perception
percentage of participantsEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=9, 10)4.57.6
Cluster 2, Satisfied (n=3, 7)6.09.9
Cluster 3, Not Satisfied (n=2, 7)4.37.7
Statistical analysis
  • Enbrel 50 mg Autoinjector · Cochran-Mantel-Haenszel · p = 0.934
  • Enbrel 50 mg Prefilled Syringe · Cochran-Mantel-Haenszel · p = 0.656
SecondaryParticipant Satisfaction at Endpoint Associated With Participant Perception

Participant perception was assessed with the 26 questions in the Device Attribute and Participant Questionnaire. Based on the scores assigned to the 26 questions, participants were grouped into 3 clusters (Cluster 1=very satisfied, Cluster 2=satisfied, Cluster 3=not satisfied) using multiple correspondence analysis and ascending hierarchical classification. Mean participant satisfaction was determined for each cluster of participants. Satisfaction was scored on a 10-point scale: 0=totally dissatisfied to 10=totally satisfied. Higher scores indicated greater satisfaction.

Time frame:
Day 84
Reported as:
Mean · units on a scale
Participant Satisfaction at Endpoint Associated With Participant Perception
units on a scaleEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Cluster 1, Very Satisfied (n=204, 133)9.0 ± 1.98.0 ± 2.5
Cluster 2, Satisfied (n=51, 71)8.1 ± 1.78.2 ± 1.6
Cluster 3, Not Satisfied (n=47, 92)5.5 ± 2.85.3 ± 2.4
Statistical analysis
  • Enbrel 50 mg Autoinjector · Kruskal-Wallis · p = <0.001
  • Enbrel 50 mg Prefilled Syringe · Kruskal-Wallis · p = <0.001

Adverse events

Non-serious events are listed at a 2% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Enbrel 50 mg Autoinjector—18/325 (5.5%)203/325 (62.5%)
Enbrel 50 mg Prefilled Syringe—9/313 (2.9%)201/313 (64.2%)
Most frequent serious events
Showing 10 of 35
Most frequent serious events
EventEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
CystitisInfections and infestations0/3252/313
AnaemiaBlood and lymphatic system disorders1/3251/313
Abdominal pain upperGastrointestinal disorders0/3251/313
Gastric ulcerGastrointestinal disorders0/3251/313
PyrexiaGeneral disorders0/3251/313
Herpes zosterInfections and infestations0/3251/313
InfectionInfections and infestations0/3251/313
Heart rate irregularInvestigations0/3251/313
OsteoarthritisMusculoskeletal and connective tissue disorders0/3251/313
LymphomaNeoplasms benign, malignant and unspecified (incl cysts and polyps)0/3251/313
Most frequent other events
Showing 10 of 17
Most frequent other events
EventEnbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled Syringe
Injection site reactionGeneral disorders46/32555/313
Injection site erythemaGeneral disorders25/32529/313
NasopharyngitisInfections and infestations22/32526/313
Injection site painGeneral disorders20/32513/313
Injection site haematomaGeneral disorders15/3256/313
BronchitisInfections and infestations6/32512/313
Injection site irritationGeneral disorders3/32510/313
Rheumatoid arthritisMusculoskeletal and connective tissue disorders6/32510/313
Injection site haemorrhageGeneral disorders10/3256/313
NauseaGastrointestinal disorders7/3259/313

Baseline characteristics

Age Continuous
Age Continuous(years)Enbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled SyringeTotal
Mean54.7 ± 12.954.8 ± 12.954.7 ± 12.9
Sex/Gender, Customized
Sex/Gender, Customized(participants)Enbrel 50 mg AutoinjectorEnbrel 50 mg Prefilled SyringeTotal
Male8578163
Female240237477
08

Study locations

113 sites
  • Frederiksberg, 02000, Denmark
  • Hjorring, 09800, Denmark
  • Holbaek, 04300, Denmark
  • Silkeborg, DK-8600, Denmark
  • Helsinki, 00130, Finland
  • Hyvinkaa, 05800, Finland
  • Joensuu, 802 10, Finland
  • Lohja, 08200, Finland
  • Amiens, 80054, France
  • Aulnay-sous-Bois, 93602, France
  • Avignon, 84000, France
  • Boulogne Billancourt, 92104, France
  • Brest, 29609, France
  • Cahors, 49000, France
  • Corbeilles-Essonnes, 91100, France
  • Grenoble, 38043, France
  • Lille, 59037, France
  • Lyon, 69091, France
  • Marseille, 13008, France
  • Montpellier, 34000, France
  • Montpellier, 34059, France
  • Niort, 79021, France
  • Orléans, 45032, France
  • Paris, 75013, France
  • Paris, 75018, France
  • Pierre-Bénite, 69495, France
  • Reims, 51092, France
  • Rouen, 76031, France
  • Toulouse, 31054, France
  • Vandoeuvre-les-Nancy, 54511, France
  • Erlangen, Bay 91054, Germany
  • Frankfurt, Hessen 60590, Germany
  • Pirna, Sachsen 01796, Germany
  • Bad Abbach, 93077, Germany
  • Bad Nauheim, 61231, Germany
  • Berlin, 10777, Germany
  • Berlin, 13125, Germany
  • Duesseldorf, 40211, Germany
  • Erlangen, 91056, Germany
  • Essen, 45326, Germany
  • Goettingen, 37075, Germany
  • Hannover, 30159, Germany
  • Hannover, 30161, Germany
  • Hofheim/Taunus, 65719, Germany
  • Köln, 50924, Germany
  • Leipzig, 04103, Germany
  • Muenchen, 80336, Germany
  • Nienburg, 31582, Germany
  • Oberammergau, 82487, Germany
  • Osnabrueck, 49074, Germany
  • Tübingen, 72076, Germany
  • Villingen-Schwenningen, 78034, Germany
  • Wuerzburg, 97080, Germany
  • Zeven, 27404, Germany
  • Ariano Irpino, Avellino 83031, Italy
  • S. Pietro Vernotico, Brescia 72027, Italy
  • San Cesario di Lecce, Lecce 73016, Italy
  • Alessandria, 15100, Italy
  • Bologna, 40133, Italy
  • Cagliari, 09042, Italy
  • Cinisello Balsamo, 20099, Italy
  • Como, 22100, Italy
  • Coppito, 67010, Italy
  • Fano, 61032, Italy
  • Ferrara, 44100, Italy
  • Foggia, 71100, Italy
  • Massa, 54100, Italy
  • Milano, 20124, Italy
  • Napoli, 80137, Italy
  • Napoli, 80144, Italy
  • Padova, 35128, Italy
  • Palermo, 90100, Italy
  • Parma, 43100, Italy
  • Reggio Calabria, 89133, Italy
  • Rieti, 02100, Italy
  • Roma, 00165, Italy
  • Roma, 00189, Italy
  • S. Dona di Piave, 30027, Italy
  • Terni, 05100, Italy
  • Torino, 10128, Italy
  • Torrette di Ancona, 60020, Italy
  • Verona, 37134, Italy
  • Vimercate, 20059, Italy
  • Arnhem, 6815 AD, Netherlands
  • Eindhoven, 5631 BM, Netherlands
  • Rotterdam, 3078 HT, Netherlands
  • Gjettum, 01346, Norway
  • Harstad, 09480, Norway
  • Kristiansand, 04615, Norway
  • Lillehammer, 02609, Norway
  • Skien, 03722, Norway
  • Trondheim, NO-7030, Norway
  • Tønsberg, 03118, Norway
  • Danderyd, 182 88, Sweden
  • Malmö, SE-205 02, Sweden
  • Stockholm, 11152, Sweden
  • Sundsvall, 851 86, Sweden
  • Uppsala, 75185, Sweden
  • Vasterås, 721 89, Sweden
  • Västerås, 72189, Sweden

Showing the first 100 of 113 sites across 9 countries.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 28, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00459706
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Apr 12, 2007
Start date
Sep 2007
Primary completion
Apr 2009
Completion
Sep 2009
Results posted
Mar 28, 2013
Last update
Mar 28, 2013

Study contacts

Medical Monitor
study director · Wyeth is now a wholly owned subsidiary of Pfizer
View the source record on ClinicalTrials.gov ↗

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