Determining How the Nervous System Processes Pain in Adults With Fibromyalgia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00496886
Recruitment Status : Completed
First Posted : July 6, 2007
Last Update Posted : October 2, 2015
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Information provided by (Responsible Party):
University of Wisconsin, Madison

Brief 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. The purpose of this study is to evaluate how the nervous system, specifically the brain, processes pain in women with FM.

Condition or disease
Fibromyalgia Rheumatoid Arthritis

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.

Study Type : Observational
Actual Enrollment : 137 participants
Observational Model: Case Control
Time Perspective: Cross-Sectional
Official Title: Imaging the Cognitive Modulation of Pain
Study Start Date : April 2006
Actual Primary Completion Date : June 2010
Actual Study Completion Date : June 2011

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Fibromyalgia

Primary Outcome Measures :
  1. Brain responses to pain [ Time Frame: Single experimental session ]
    The study determines brain responses to pain in both healthy participants and those with fibromyalgia under conditions designed to manipulate anticipation and attention.

Secondary Outcome Measures :
  1. Physical activity [ Time Frame: one week ]
    The study measures physical activity the week prior to brain imaging

  2. Brain white matter [ Time Frame: single experimental session ]
    The study measures white matter using diffusion tensor imaging methods

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Community and primary care clinic samples.

Inclusion Criteria:

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

Exclusion Criteria:

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00496886

United States, Wisconsin
University of Wisconsin - Madison
Madison, Wisconsin, United States, 53706
Sponsors and Collaborators
University of Wisconsin, Madison
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Principal Investigator: Dane B. Cook, PhD University of Wisconsin, Madison

Responsible Party: University of Wisconsin, Madison Identifier: NCT00496886     History of Changes
Other Study ID Numbers: R01AR050969 ( U.S. NIH Grant/Contract )
R01AR050969 ( U.S. NIH Grant/Contract )
1R01AR050969-01A1 ( U.S. NIH Grant/Contract )
First Posted: July 6, 2007    Key Record Dates
Last Update Posted: October 2, 2015
Last Verified: February 2013

Keywords provided by University of Wisconsin, Madison:

Additional relevant MeSH terms:
Arthritis, Rheumatoid
Myofascial Pain Syndromes
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Connective Tissue Diseases
Autoimmune Diseases
Immune System Diseases
Muscular Diseases
Neuromuscular Diseases
Nervous System Diseases