The Effect of Central Sensitization on Treatment Response in Patients With Fibromyalgia

August 12, 2023 updated by: Marmara University

Investigation of the Effect of Initial Central Sensitization Severity on Treatment Response in Patients With Fibromyalgia

Central sensitization (CS) is as increased response to normal or sub-threshold stimuli of central nervous system and its close relationship with fibromyalgia has been demonstrated in several studies. However, the effect of initial CS severity on treatment response in these patients is not fully known. In this study, it was aimed to investigate the severity of CS and its effect on treatment response in patients with fibromyalgia.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Fibromyalgia is a disease characterized by chronic widespread pain and its etiology and pathophysiology are still unknown.It is considered to be the main member of the central sensitization-related disease group known as central sensitivity syndromes with impaired pain regulation.In various studies, hyperalgesia and allodynia, which are accepted as objective findings of central sensitization in patients with fibromyalgia, strengthen the relationship between fibromyalgia and central sensitization. The central sensitization inventory (CSI) was developed in 2012 to be used in the recognition of central sensitivity syndromes in patients with fibromyalgia. A score of 40 and above is accepted in favor of central sensitization in the scale, which consists of two parts, in which central sensitization-related symptoms and diagnoses are questioned; scores of 30-39 are classified as mild, 40-49 moderate, 50-59 severe, and 60-100 very severe. Parallel to the increase in the CSI score, an increase is observed in patients' pain severity, disability, depressive symptoms and sleep disorders.In addition, it has been reported in the literature that factors such as pre-treatment pain severity and depression affect the treatment response.Considering all these factors, it is possible that there is a relationship between the severity of central sensitization and treatment response in patients with fibromyalgia.Based on this, in this study, it was aimed to investigate the effect of central sensitization severity, which was evaluated with CSI before treatment, on the treatment process.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
40

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Turkey
      • İstanbul, Turkey, 34899
        • Recruiting
        • Feyza Nur YUCEL
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Fibromyalgia patients

Description

Inclusion Criteria:

  • Diagnosing fibromyalgia according to ACR 2016 criteria
  • Between the ages of 18-65
  • Agree to participate in the study

Exclusion Criteria:

  • History of concomitant systemic inflammatory disease, active infection and malignancy
  • Refusing to participate in the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Patients with fibromyalgia
Patients diagnosed with fibromyalgia according to American College of Rheumatology 2016 criteria
Drug: Duloxetine
First-line fibromyalgia treatment
Other Names:
  • Dyloxia
Drug: Pregabalin
First-line fibromyalgia treatment
Other Names:
  • Lyrica
Drug: Amitriptyline
First-line fibromyalgia treatment
Other Names:
  • Laroxyl

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Visual analog scale ( VAS) pain
Time Frame: 2 year
Pain rating scale. The VAS consists of a 10cm line, with two end points representing 0 ('no pain') and 10 ('pain as bad as it could possibly be')
2 year
Symptom severity scale
Time Frame: 2 year
The SS scale quantifies symptom severity on a 0-12 scale by scoring problems with fatigue, cognitive dysfunction and unrefreshed sleep over the past week
2 year
Fibromyalgia impact scale
Time Frame: 2 year
The questionnaire was developed to determine the degree of being affected by the disease in patients with a diagnosis of fibromyalgia.The scale consists of 10 parts in total, and the first part is a Likert scale containing 11 questions. High scores indicate that the patient is overly affected.
2 year
Short Form-36
Time Frame: 2 year
Standardized questionnaire to investigate the quality of life in patients. The score of the scale is between 0-100. The higher scores are associated with greater deterioration in quality of life.
2 year
Central sensitization inventory
Time Frame: 2 year
Standardized questionnaire to determine the level of central sensitization. Patients with a score of 40 and above are considered to have central sensitization.
2 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Marmara University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Canan SANAL TOPRAK, assoc. prof., Marmara University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 19, 2021

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2024

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 18, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 19, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 25, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 15, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 12, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 09.2021.117

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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