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FibromyalgiaNCT00496886

Determining How the Nervous System Processes Pain in Adults With Fibromyalgia

An observational study of Fibromyalgia and Rheumatoid Arthritis, run by University of Wisconsin, Madison at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Fibromyalgia (FM) is a disabling chronic disorder characterized by widespread muscle pain, fatigue, and multiple tender points, specific places on the body that become painful with only slight pressure. Pain associated with FM cannot be explained medically, often leading to a delayed diagnosis and delayed treatment. Read more about this study

Who is it for?
Ages 18 to 60 years, women onlyHealthy volunteers can take part
Conditions the study is for
Fibromyalgia, Rheumatoid Arthritis
How many people
137 participants
Where
1 siteUnited States
Study dates
Apr 2006to Jun 2011
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Study population: Community and primary care clinic samples.

Who may be able to join

  • Diagnosis of FM or RA OR healthy
  • Right-handed

Who cannot join

  • Diagnosis of depression
  • Using illegal drugs
  • Claustrophobic
  • Metal objects in body
  • Require cardiovascular, high-dose antidepressant, or certain analgesic medications

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Wisconsin - Madison

    Madison, Wisconsin, 53706

Other trials in United States

About this study

Official title: Imaging the Cognitive Modulation of Pain

Fibromyalgia (FM) is a disabling chronic disorder characterized by widespread muscle pain, fatigue, and multiple tender points, specific places on the body that become painful with only slight pressure. Pain associated with FM cannot be explained medically, often leading to a delayed diagnosis and delayed treatment. The purpose of this study is to evaluate how the nervous system, specifically the brain, processes pain in women with FM.

Read the detailed description

The cause of FM remains unknown, and more than half of all FM patients do not experience adequate pain relief from current treatment. Identifying the mechanisms of unexplained pain in people with FM is necessary to develop more beneficial treatments. One possible cause of FM may be associated with problems in how the body processes pain. People with FM appear to be hypersensitive to stimuli that normally are not painful. Specifically, the brain and spinal cord may not signal sensations correctly, resulting in abnormal pain sensations. This study will use functional magnetic resonance imaging (fMRI) to examine how pain is processed in the brain of adults with FM compared with adults with rheumatoid arthritis (RA), another chronic disease characterized by long-term pain with a known cause. This study will also determine the effect that anticipation and attention have on the processing of nonpainful stimuli in women with FM and RA. Both groups of people will also be compared to a control group of healthy people.

Participants in this study will include only women. This study will include two study visits that will occur on separate days. Each study visit will last from 2 to 3 hours. During the first study visit, participants will complete questionnaires. They will then rate heat stimuli applied to their hand and perform mental tasks while in a mock MRI machine. The mental tasks will consist of naming the color of words. Some participants will receive nonpainful heat stimuli; others will receive both painful and nonpainful heat stimuli. During the second study visit, participants will undergo the exact same procedures while in an actual MRI machine. There will be no follow-up visits for this study.

Keywords
Pain, Nociception
Medical subject headings
Fibromyalgia, Arthritis, Rheumatoid, Pain

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Brain responses to pain

    The study determines brain responses to pain in both healthy participants and those with fibromyalgia under conditions designed to manipulate anticipation and attention.

    Measured: Single experimental session

Secondary outcomes (2)
  1. Physical activity

    The study measures physical activity the week prior to brain imaging

    Measured: one week

  2. Brain white matter

    The study measures white matter using diffusion tensor imaging methods

    Measured: single experimental session

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jul 2007 (estimated)
  2. Study startApr 2006
  3. Primary completionJun 2010
  4. Study completionJun 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
137 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00496886
Sponsor's protocol ID
R01AR050969
Other IDs
R01AR050969, 1R01AR050969-01A1
Status last verified
Feb 2013
First submitted
5 Jul 2007
Last updated
2 Oct 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Fibromyalgia and Rheumatoid Arthritis, run by University of Wisconsin, Madison at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Brain responses to pain (time frame: Single experimental session). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Oct 2015; AzTrials last refreshed its copy on 6 Nov 2026.

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