Comorbidity Between Attention Deficit Hyperactivity Disorder and Fibromyalgia (HYPERPAIN)

June 2, 2026 updated by: University Hospital, Tours

Comorbidity Between Attention Deficit Hyperactivity Disorder (ADHD) and Fibromyalgia: Cross-prevalence in Patients Treated for ADHD Who Are naïve to Methylphenidate, ADHD Treated With Methylphenidate, or Fibromyalgia, and Associated Metabolomic Factors

The overall objective of the research project presented here is to assess the prevalence of fibromyalgia in patients being treated for ADHD, the prevalence of ADHD in patients being treated for fibromyalgia, and the neurobiological correlates of ADHD-fibromyalgia comorbidity.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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.
Interventional

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.
100

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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.

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

For patients with fibromyalgia :

  • Men or women aged 18 or over
  • Diagnosis of fibromyalgia
  • Affiliated with a social security scheme
  • Having signed an informed consent form

For patients with ADHD treated with methylphenidate

  • Men or women aged 18 or over
  • ADHD diagnosis
  • Current treatment with extended-release methylphenidate for at least 1 month, with stable dosage for at least 2 weeks
  • Affiliated with a social security scheme
  • Having signed an informed consent form

For patients with ADHD but not treated with methylphenidate

  • Men or women aged 18 or over
  • ADHD diagnosis
  • Affiliated with a social security scheme
  • Having signed an informed consent form

Exclusion Criteria:

  • For patients with fibromyalgia: existence of another condition explaining chronic pain
  • Severe cognitive impairment
  • Difficulties in understanding self-administered questionnaires
  • Difficulties in assessing pain intensity
  • Acute psychiatric disorder impacting the validity of self-report questionnaire data collection
  • Inability to take biological samples
  • Persons covered by Articles L1121-5 to L1121-8 of the CSP (corresponding to all protected persons: pregnant women, women in labor, nursing mothers, persons deprived of their liberty by judicial or administrative decision, minors, persons subject to legal protection measures: guardianship or curatorship).

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

  • Primary Purpose: Other
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
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.
Experimental: Patients with fibromyalgia being treated for ADHD
Biological: Samples
Blood and urine samples including metabolomic analyses.
Other: Questionnaires
Completing self-assessment questionnaires
Other: Sensitivity to mechanical pain
Assessment of sensitivity to mechanical pain (by using the Von Frey monofilament test)

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
Percentage of patients with fibromyalgia among patients with ADHD and no prior methylphenidate treatment
Time Frame: Baseline
Comparison of the observed prevalence of fibromyalgia (as assessed by the ACR diagnostic criteria) among patients with ADHD (as assessed by the DIVA-5 diagnostic interview) and no prior methylphenidate treatment versus the theoretical prevalence of fibromyalgia in the overall French population
Baseline

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of patients with fibromyalgia among patients with ADHD and a current methylphenidate treatment
Time Frame: Baseline
Comparison of the observed prevalence of fibromyalgia (as assessed by the ACR diagnostic criteria) among patients with ADHD (as assessed by the DIVA-5 diagnostic interview) and a current methylphenidate treatment versus the theoretical prevalence of fibromyalgia in the French overall population
Baseline
Comparison of the levels of cytokines (specific biomarkers of inflammation), between patients with fibromyalgia without ADHD
Time Frame: Baseline
Plasma and urine levels of different cytokines (IFN-gamma, IL-1B, IL-6, IL10, IL-13, IL-17, TNF-alpha), as assessed by metabolomic analyses (high-performance liquid chromatography)
Baseline
Comparison of the levels of cytokines (specific biomarkers of inflammation), between patients with ADHD without fibromyalgia
Time Frame: Baseline
Plasma and urine levels of different cytokines (IFN-gamma, IL-1B, IL-6, IL10, IL-13, IL-17, TNF-alpha), as assessed by metabolomic analyses (high-performance liquid chromatography)
Baseline
Comparison of the levels of cytokines (specific biomarkers of inflammation), between patients with fibromyalgia with ADHD
Time Frame: Baseline
Plasma and urine levels of different cytokines (IFN-gamma, IL-1B, IL-6, IL10, IL-13, IL-17, TNF-alpha), as assessed by metabolomic analyses (high-performance liquid chromatography)
Baseline
Comparison of the levels of neuro-inflammation biomarkers (i.e., tryptophane derivatives, short carbon chain fatty acids, lipidomic profile) between patients with fibromyalgia without ADHD,
Time Frame: Baseline
Plasma and urine levels of tryptophane derivatives, short carbon chain fatty acids and lipidomic profile, as assessed by metabolomic analyses
Baseline
Comparison of the levels of neuro-inflammation biomarkers (i.e., tryptophane derivatives, short carbon chain fatty acids, lipidomic profile) between patients with ADHD without fibromyalgia
Time Frame: Baseline
Plasma and urine levels of tryptophane derivatives, short carbon chain fatty acids and lipidomic profile, as assessed by metabolomic analyses
Baseline
Comparison of the levels of neuro-inflammation biomarkers (i.e., tryptophane derivatives, short carbon chain fatty acids, lipidomic profile) between patients with fibromyalgia with ADHD
Time Frame: Baseline
Plasma and urine levels of tryptophane derivatives short carbon chain fatty acids and lipidomic profile, as assessed by metabolomic analyses
Baseline
Comparison of the levels of 500 biomarkers of neurotransmission between patients with fibromyalgia without ADHD
Time Frame: Baseline
Plasma and urine levels of 500 different biomarkers of neurotransmission (e.g., dopaminergic, serotoninergic, noradrenegic), as assessed by metabolomic analyses (high-performance liquid chromatography)
Baseline
Comparison of the levels of 500 biomarkers of neurotransmission between patients with: ADHD without fibromyalgia
Time Frame: Baseline
Plasma and urine levels of 500 different biomarkers of neurotransmission (e.g., dopaminergic, serotoninergic, noradrenegic), as assessed by metabolomic analyses (high-performance liquid chromatography)
Baseline
Comparison of the levels of 500 biomarkers of neurotransmission between patients with fibromyalgia with ADHD
Time Frame: Baseline
Plasma and urine levels of 500 different biomarkers of neurotransmission (e.g., dopaminergic, serotoninergic, noradrenegic), as assessed by metabolomic analyses (high-performance liquid chromatography)
Baseline

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.
University Hospital, Tours

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 (Estimated)

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.
July 1, 2026

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.
July 1, 2028

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.
July 1, 2028

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).
February 24, 2026

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.
February 24, 2026

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.
March 2, 2026

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.
June 4, 2026

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.
June 2, 2026

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.
June 1, 2026

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.
  • DR250012

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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