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Reduced Ability to Make Decisions: a Study That Observe Differences in Patients With Fibromyalgia and Healthy Control

NCT06118970, Unknown, Vrije Universiteit Brussel

Trial 9

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

FieldValueSource
TitleReduced Ability to Make Decisions: a Study That Observe Differences in Patients With Fibromyalgia and Healthy ControlClinicalTrials.gov
NCT numberNCT06118970ClinicalTrials.gov
StatusUnknownClinicalTrials.gov
Enrollment90 participants, estimatedClinicalTrials.gov
Lead sponsorVrije Universiteit BrusselClinicalTrials.gov
ConditionsFibromyalgiaClinicalTrials.gov
InterventionsNeuropsychological tasks and self-report questionnairesClinicalTrials.gov
First posted2023-11-07ClinicalTrials.gov
Last updated2024-05-08ClinicalTrials.gov

Registered outcomes 9

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescriptionSource
PrimaryIowa gambling task (IGT)Baseline (cross sectional)
This task is designed to assess cognitive function in emotional decision-making. It is a computerized decision-making task that involves uncertainty, risk assessment, and the evaluation of both reinforcement and punishment.
ClinicalTrials.gov
SecondaryStroop task and Emotional Stroop taskBaseline (cross sectional)
The Stroop test is an instrument for assessing executive functions and aims to measure an individual's ability for selective attention, cognitive flexibility, and inhibition of automatic answers. The Stroop task can also be manipulated to examine how emotional stimuli disrupt colour-naming performance (Emotional Stroop task).
ClinicalTrials.gov
OtherFibromyalgia Impact Questionnaire (FIQ)Baseline (cross sectional)
The FIQ is a solid, worldwide-used questionnaire with a history of 20 years consisting of three domains (functional domain, physical symptom domain, and mental symptom domain). It is composed of 10 questions. The first question contains 11 items related to the ability to perform large muscle tasks - each question is rated on a 4 point Likert type scale. Items 2 and 3 ask the patient to mark the number of days they felt well and the number of days they were unable to work (including housework) because of fibromyalgia symptoms. Items 4 through 10 are horizontal line-ar scales marked in 10 increments on which the patient rates work difficulty, pain, fatigue, morn-ing tiredness, stiffness, anxiety and depression. The internal consistency of the FIQ is high (Cronbach's Alpha\> 0.80). The scale is translated and validated in French and Dutch.
ClinicalTrials.gov
OtherThe Multidimensional Scale of Perceived Social Support (MSPSS)Baseline (cross sectional)
The MSPSS assess an individual's perception of the social support he or she receives from family, friends, and significant others. It is a self-report measure and contains 12-items, rated on a 7-point Likert-type scale, ranging from 1 "very strongly disagree" to 7 "very strongly agree." The scale was divided into 3 subscales: family, friends, and significant other, with each section consisting of 4 items. The scale reports the three subscale scores and an overall total score. The average item rating is reported as the score for the subscales and for the total score. The internal consistency of the MSPSS is excellent (Cronbach's Alpha \> 0.89). The scale is translated and validated in French and Dutch.
ClinicalTrials.gov
OtherBrief Pain Inventory (BPI)Baseline (cross sectional)
The BPI was developed to provide a quick and easy means of measuring pain intensity and the extent to which pain interferes in the lives of the pain sufferers. Using this measure, respondents rate their worst, least, average, and current pain intensity and rate the degree to which pain inter-feres with 7 domains of functioning (general activity, mood, walking ability, normal work, rela-tions with other persons, sleep, and enjoyment of life) on a scale of 0 to 10. In patients with chronic non-malignant pain the internal consistency (Cronbach's Alpha) was .85 for the intensity scale and .88 for the interference scale. The scale is translated and validated in French and translated in Dutch.
ClinicalTrials.gov
OtherGeneral Decision-Making Style (GDMS)Baseline (cross sectional)
The GDMS was designed to assess how individuals approach decision situations. It distinguishes between 5 decision styles: a rational style, an avoidant style, a dependent style, an intuitive style and a spontaneous style. The scale consists of 25 items, each item has a score ranging from 1 to 5 (1= strongly disagree to 5= strongly agree). The internal consistency reliability (Cronbach's alpha) range between 0.62 and 0.84 for the five styles. The scale is translated and validated in French and Dutch.
ClinicalTrials.gov
OtherHospital Anxiety and Depression Scale (HADS)Baseline (cross sectional)
The HADS is a two-dimension scale developed to identify depression and anxiety among physi-cally ill patients. The HADS consists of 14 items, divided into two 7 subscales: anxiety (items reflect a state of generalized anxiety) and depression (focus on the concept of anhedonia). The respondent rates each item on a 4-point scale, higher scores indicate greater levels of anxiety or depression. The internal consistency of the HADS range from adequate to excellent (Cronbach's Alpha 0.67-0.93). The scale is translated and validated in French and Dutch.
ClinicalTrials.gov
OtherMedical Outcomes Study Short Form 36 (SF-36)Baseline (cross sectional)
The SF-36 is a generic patient-reported outcome measure that quantifies health status and measures health-related quality of life. It consists of 36-item measure divided into 8 subscales and 2 composite domains. The 8 subscales are: physical functioning, role limitations due to physical problems, general health perceptions, vitality, social functioning, role limitations due to emotion-al problems, general mental health and health transition. The internal consistency of the SF-36 in chronic pain population is good (Cronbach's Alpha 0.76). The scale is translated and validated in French and Dutch.
ClinicalTrials.gov
OtherInsomnia Severity Index (ISI)Baseline (cross sectional)
The ISI is a 7-item self-report questionnaire assessing the nature, severity, and impact of insom-nia. the dimensions evaluated are: severity of sleep onset, sleep maintenance, and early morning awakening problems, sleep dissatisfaction, interference of sleep difficulties with daytime func-tioning, noticeability of sleep problems by others, and distress caused by the sleep difficulties. A 5-point Likert scale is used to rate each item (e.g., 0 = no problem; 4 = very severe problem), yielding a total score ranging from 0 to 28. The total score is interpreted as follows: absence of insomnia (0-7); sub-threshold insomnia (8-14); moderate insomnia (15-21); and severe insomnia (22-28).The internal consistency of the ISI range between good and excellent (Cronbach's Alpha 0.76 - 0.91). The scale is translated and validated in French and Dutch.
ClinicalTrials.gov

Outcomes 0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured asSource

Results by group 0

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnitsSource

Participant flow 0

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits countedSource

Adverse events 0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEventsSource

Adverse event totals 0

The totals the trial posted for each group.

TotalGroupAffectedAt riskSource

Papers 9

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
19395361BACKGROUNDPubMed
21334501BACKGROUNDPubMed
23557844BACKGROUNDPubMed
24447855BACKGROUNDPubMed
26054236BACKGROUNDPubMed
29528888BACKGROUNDPubMed
32478943BACKGROUNDPubMed
35588963BACKGROUNDPubMed
36358377BACKGROUNDPubMed

Grants 0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

ProjectTitlePrincipal investigatorsOrganizationFunderFiscal yearsSource

Trial comparisons 0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource

Tests 3

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

TestNamed asSource
Iowa Gambling LitePrimary outcomeConductCognition
Emotional Stroop TaskSecondary outcomeConductCognition
Stroop Color-Word TestSecondary outcomeConductCognition

Source 5

FieldValueSource
Releasetrials-2026-11-12-0.4.0ClinicalTrials.gov
Release manifest SHA-2560f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4ClinicalTrials.gov
Registry capture2026-11-12ClinicalTrials.gov
Results copy, AACT2026-03-23ClinicalTrials.gov
NIH clinical studies file2026-11-13ClinicalTrials.gov

The same record as JSON

Release trials-2026-11-12-0.4.0

ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299 ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

ClinicalTrials.gov: none stated ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

NIH RePORTER's clinical studies and project files: Public domain (NIH RePORTER)