NCT01294696

Brief Summary

This was a study to estimate the proportion of participants with osteoarthritis of the knee(s) who were treated with oral or topical analgesics for their symptoms, who did and did not report adequate pain relief at Baseline and to characterize their pain level over a 12-month follow-up period.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,261

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2010

Typical duration for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2010

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

December 22, 2010

Completed
2 months until next milestone

First Posted

Study publicly available on registry

February 11, 2011

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2013

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

March 4, 2014

Completed
Last Updated

August 29, 2024

Status Verified

February 1, 2022

Enrollment Period

2.3 years

First QC Date

December 22, 2010

Results QC Date

January 21, 2014

Last Update Submit

August 12, 2024

Conditions

Keywords

OsteoarthritisStandard of care

Outcome Measures

Primary Outcomes (2)

  • Percentage of Participants Who Reported Adequate vs. Inadequate Pain Relief at Baseline

    Participant pain at baseline was recorded using the Brief Pain Inventory (BPI). The BPI is an inventory of subject-reported questions, where for each pain severity item the response scale is 0 = No Pain and 10 = Worst Pain You Can Imagine. The questions refer to pain due to osteoarthritis in the affected knee in the last week: at its worst, at its least, on the average, and right now. Adequate pain control was defined as a score of \<=4 on question 5 of the BPI. Inadequate pain control was defined as a score \>4 on question 5 of the BPI. Question 5 of the BPI asked participants to rate their pain by circling the number that best describes their pain on the average scale from 0 to 10 (with 0=no pain and 10=worst pain imaginable).

    Baseline (Day 1)

  • Percentage of Participants Who Reported Adequate vs. Inadequate Pain Relief at Month 12

    Participant pain at baseline was recorded using the Brief Pain Inventory (BPI). The BPI is an inventory of subject-reported questions, where for each pain severity item the response scale is 0 = No Pain and 10 = Worst Pain You Can Imagine. The questions refer to pain in the last week: at its worst, at its least, on the average, and right now. Adequate pain control was defined as a score of \<=4 on question 5 of the BPI. Inadequate pain control was defined as a score \>4 on question 5 of the BPI. Question 5 of the BPI asked participants to rate their pain by circling the number that best describes their pain on the average scale from 0 to 10 (with 0=no pain and 10=worst pain imaginable).

    Month 12

Secondary Outcomes (6)

  • Percentage of Participants Who Reported Adequate Relief From Joint Stiffness or Limitation in Physical Function at Baseline (Day 1)

    Baseline (Day 1)

  • Percentage of Participants Who Reported Adequate Relief From Joint Stiffness or Limitation in Physical Function at Month 1

    Month 1

  • Percentage of Participants Who Reported Adequate Relief From Joint Stiffness or Limitation in Physical Function at Month 3

    Month 3

  • Percentage of Participants Who Reported Adequate Relief From Joint Stiffness or Limitation in Physical Function at Month 6

    Month 6

  • Percentage of Participants Who Reported Adequate Relief From Joint Stiffness or Limitation in Physical Function at Month 9

    Month 9

  • +1 more secondary outcomes

Study Arms (1)

All Enrolled Participants

All participants will be treated according to standard medical guidelines or usual clinical practice standards of the investigating physician.

Drug: Standard of care for treatment of osteoarthritis (OA) of knee(s)

Interventions

All participants will be treated according to standard medical guidelines or usual clinical practice standards of the investigating physician.

All Enrolled Participants

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants who are presently receiving prescribed oral or topical analgesics which commenced at least two weeks prior to enrollment

You may qualify if:

  • Clinical diagnosis of primary osteoarthritis of the knee(s)
  • Presently receiving prescribed oral or topical analgesics for a minimum duration of two weeks prior to enrollment

You may not qualify if:

  • Arthritis other than primary osteoarthritis
  • Treatment with disease-modifying antirheumatic drugs (DMARDS), methotrexate or biologics
  • Subtotal or total joint replacement in the affected knee
  • Chronic severe pain of other causes that in the opinion of the investigator may require long-term analgesia or confound the present study
  • Currently enrolled in a clinical trial or who have participated in a clinical trial within the past 30 days

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Conaghan PG, Peloso PM, Everett SV, Rajagopalan S, Black CM, Mavros P, Arden NK, Phillips CJ, Rannou F, van de Laar MA, Moore RA, Taylor SD. Inadequate pain relief and large functional loss among patients with knee osteoarthritis: evidence from a prospective multinational longitudinal study of osteoarthritis real-world therapies. Rheumatology (Oxford). 2015 Feb;54(2):270-7. doi: 10.1093/rheumatology/keu332. Epub 2014 Aug 23.

MeSH Terms

Conditions

Osteoarthritis

Interventions

Standard of Care

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Intervention Hierarchy (Ancestors)

Quality Indicators, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and Evaluation

Results Point of Contact

Title
Vice President, Late Stage Group Development Leader
Organization
Merck Sharp & Dohme Corp

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 22, 2010

First Posted

February 11, 2011

Study Start

October 1, 2010

Primary Completion

January 1, 2013

Study Completion

January 1, 2013

Last Updated

August 29, 2024

Results First Posted

March 4, 2014

Record last verified: 2022-02