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Modulating Mechanisms in Patients With Chronic Subjective Tinnitus and/or Chronic Pain

Modulating Mechanisms in Patients With Chronic Subjective Tinnitus and/or Chronic Pain

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05186259
Enrollment
135
Registered
2022-01-11
Start date
2021-12-21
Completion date
2022-04-01
Last updated
2024-01-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain, Tinnitus

Brief summary

This is a cross-sectional investigation into modulating mechanisms in patients with chronic subjective tinnitus, which will compare 4 patient groups namely chronic tinnitus with chronic pain, chronic tinnitus without chronic pain, chronic pain without tinnitus and healthy controls.

Detailed description

The first aim is to investigate differences in pain-related factors, psychological factors, lifestyle factors and tinnitus-related factors in patients with chronic subjective tinnitus and the comparison with patients suffering from both chronic subjective tinnitus and chronic musculoskeletal pain, chronic musculoskeletal pain only and healthy controls. The primary outcome measures will be pain-related factors and correlations will also be calculated between pain-related factors on the one hand and psychological factors, lifestyle factors and tinnitus-related factors on the other hand. A second aim is to assess contributing factors to tinnitus severity (measured by the Tinnitus Functional Index) in patients with tinnitus with or without chronic pain. Contributing factors will include pain-related factors, psychological factors, lifestyle factors, and tinnitus-related factors, audiological factors, cognitive factors. * Pain-related factors include: 1. Self-perceived symptoms of central sensitization by means of the Central Sensitization Inventory: The Central Sensitization Inventory is a self-report questionnaire that assesses clinical symptoms indicative for central sensitization. 2. Experimental measures of central sensitization: Quantitative Sensory Testing Quantitative Sensory Testing (QST) is a psychophysiological assessment of sensory pathways including mechanicaldetection and pain thresholds, cutaneous heat detection and pain thresholds, and endogenous pain facilitation and inhibition. 3. Self-reported pain processing by means of the Pain Catastrophizing Scale 4. Self-reported neck pain related disability by means of the Neck Disability Index * Psychological factors include: Self-reported stress, anxiety and depression (Depression, Anxiety and Stress Scale\_21 and Beck Depression Inventory), resilience (Connor Davidson Resilience Scale), personality (Big Five Index) \*Lifestyle factors include: Self-reported physical activity (Baecke Questionnaire), self-reported sleep quality (Pittsburgh Sleep Quality Index) and self-reported insomnia severity (Insomnia Severity Index), self-reported quality of life (SF-36) \*Tinnitus-related factors include: Self-reported tinnitus severity and impact (Tinnitus Functional Index), self-reported hyperacusis (Hyperacusis Questionnare), self-reported tinnitus characteristics (Tinnitus Sample Case History Questionnaire) * Cognitive factors include: 1. Verbal working memory capacity and processing speed (Letter-number sequencing task) 2. Attention span (detecting letters-task (COTESS)) 3. Cognitive flexibility and inhibition (Auditory Stroop task) 4. Listening effort (Modified version of the behavioral listening effort test based on a dual-task paradigm by Degeest, Keppler & Corthals (2018)) * Audiological factors include: 1. Hearing thresholds (Pure tone audiometry) 2. Psychoacoustic features of tinnitus (tinnitus pitch, loudness, masking ability, and residual inhibition using same devices as for pure tone audiometry) 3. Uncomfortable Loudness (using same devices as for pure tone audiometry)

Interventions

DIAGNOSTIC_TESTSelf-reported signs of central sensitization

Self-reported signs of central sensitization by means of the Central Sensitization Inventory (questionnaire)

DIAGNOSTIC_TESTObjective signs of central sensitization

Objective signs of central sensitization by means of Quantitative Sensory Testing (mechanical and heat detection and pain thresholds, endogenous pain facilitation and inhibition)

DIAGNOSTIC_TESTAudiological outcome measures (audiometry, tinnitus analysis, uncomfortable loudness) in tinnitus patients with and without pain

* Audiometry Performance of pure tone audiometry according to the modified Hughson-Westlake method * Tinnitus analysis Measurement of psychoacoustic features of tinnitus, including (1) tinnitus pitch, (2) loudness, (3) masking ability, and (4) residual inhibition. * Uncomfortable Loudness measures Performance of Uncomfortable Loudness measurements to evaluate the presence of hyperacusis. .

DIAGNOSTIC_TESTCognitive functioning

Evaluation of cognitive functioning by means of: * Auditory Stroop test * Detecting letters task * Letter-number sequencing task

DIAGNOSTIC_TESTListening effort

Evaluation of listening effort by means of the modified version of the behavioral listening effort test based on a dual-task paradigm by Degeest, Keppler & Corthals (2018) .

DIAGNOSTIC_TESTSelf-reported psychological factors

Evaluation of psychological factors by means of: * Depression, Anxiety and Stress Scale (DASS-21) * Beck Depression Inventory (BDI) * Big Five Inventory (BFI) * Connor-Davidson Resilience Scale

DIAGNOSTIC_TESTSelf-reported lifestyle factors

Evaluation of lifestyle factors by means of: Baecke Questionnaire Pittsburg Sleep Quality Index Insomnia Severity Index Stress subscale of the DASS 21

DIAGNOSTIC_TESTSelf-reported measure of pain processing

Evaluation of self-reported pain processing by means of the Pain Catastrophizing Scale

DIAGNOSTIC_TESTSelf-reported quality of life

Self-reported quality of life by means of the SF-36 questionnaire

DIAGNOSTIC_TESTSelf-reported tinnitus severity and impact on daily life

Evaluation of self-reported tinnitus severity and impact on daily life by means of the Tinnitus Functional Index

DIAGNOSTIC_TESTSelf-reported hyperacusis

Evaluation of self-reported characteristics of hyperacusis by means of the Hyperacusis Questionnaire

DIAGNOSTIC_TESTSelf-reported tinnitus characteristics

Evaluation of self-reported tinnitus characteristics by means of the Tinnitus Sample Case History Questionnaire

DIAGNOSTIC_TESTSelf reported neck pain related disability

Evaluation of self-reported neck pain related disability using the Neck Disability Index

Sponsors

Bijzonder onderzoeksfonds (BOF)
CollaboratorUNKNOWN
University Ghent
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Chronic subjective tinnitus patients without chronic pain: * Aged between 18-65 years * Chronic subjective tinnitus (\> 3 months during most of the days (4 or more)and for more than 5 minutes/day) * Speaking and understanding Dutch fluently * Chronic subjective tinnitus patients with chronic pain: * Aged between 18-65 years * Chronic subjective tinnitus (\> 3 months during most of the days (4 or more)and for more than 5 minutes/day) * Speaking and understanding Dutch fluently * Persistent musculoskeletal pain lasting more than 3 months * Mean pain intensity of more than 3 of 10 on a numeric pain rating scale during the preceding month (the cutoff for clinically relevant pain) * Chronic ideopathic neck pain: * Aged between 18-65 years * Persistent neck pain lasting more than 3 months * Mean pain intensity of more than 3 of 10 on a numeric pain rating scale during the preceding month (the cutoff for clinically relevant pain) * Healthy controls: * Aged between 18-65 years

Exclusion criteria

* Chronic subjective tinnitus with/without chronic pain: * Objective tinnitus * Subjective tinnitus caused by clear causes such as tumor, trauma, vascular dysfunction, neurological disorder, pulsatile tinnitus * Vertigo (Menière's disease, BPPV,…) * Deafness * Progressive middle ear pathology * Intracranial pathologies * Subjects with prior otologic surgery (for example stapedotomy), active outer or middle ear pathology * History of head, neck or shoulder trauma or surgery (\< 5 years, or remaining complaints) * A history of whiplash trauma * Major depression or psychiatric illness (diagnosed by a psychiatrist and being in medicamental or psychiatric treatment) * Life threatening, metabolic, cardiovascular, neurologic, systemic diseases * Diagnosis of fibromyalgia/chronic fatigue syndrome * Pregnancy or given birth in the preceding year * Dyslexia, dyscalculia, AD(H)D, language/communication disorder * Chronic subjective tinnitus without chronic pain (additional

Design outcomes

Primary

MeasureTime frameDescription
Between-group differences in mechanical pain sensitivity by means of pressure detection and pain thresholds (expressed in kgf)At baselinePain sensitivity will be assessed by a mechanical stimulus, which is given by the tester with a digital pressure algometer (FDX; Wagner Instruments) at a rate of 1 kg pressure rise per second. The participant is asked to say 'yes' if the point was reached when the pressure stimulus causes a sensation of pain (detection threshold), the tester continues giving pressure until the patient says 'yes' for a second time indicating the feeling of pain reached a 6/10 of the NRS (pain threshold). T Two consecutive measurements with a break of 30 seconds are performed. This protocol is performed at 5 standardized body locations, being: C5-C cervical joint, N. Trigeminus, M. Masseter, M. Extensor carpi radialis longus, M. Tibialis Anterior

Secondary

MeasureTime frameDescription
Audiometric assessmentsAt baselineAudiometry Pure tone audiometry according to the modified Hughson-Westlake method will be performed. For air conduction, pure tone thresholds will be determined at octave frequencies from 0.25 to 8 kHz and at half-octave frequencies 3 and 6 kHz (DD45 audiometric headset, Calisto audiometer, Interacoustics). For each ear separately, hearing thresholds (using tonal luminal audiometry) and uncomfortable loudness (UCL) levels were determined on all octave frequencies between 250 and 8000 Hertz (Hz). Based on the audiometric thresholds and UCL levels, the Johnson Hyperacusis Quotient.
Between-group differences in heat pain sensitivity by means of heat detection and pain thresholds (expressed in °)At baselineHeat stimuli are given using the CHEPS PATHWAY system (Medoc). This probe is placed on the skin at the 5 standardized locations. It provides a heat stimulus that rises at a rate of 1°C/second. Using a dual response button, the participant has to indicate when the heat sensation changes into a pain sensation by pressing a blue button (detection threshold). The temperature keeps rising after the blue button is pressed. If the patient scores the pain sensation resulting from the heat stimulus as a 6/10 on the NRS they have to press the red button. At that moment, the temperature of the thermode goes back to the baseline temperature of 32°C. When the baseline temperature is reached, a second heat stimulus is given after a 15 second break. 3 consecutive trials will be performed. This protocol is performed at 5 standardized body locations, being: C5-C cervical joint, N. Trigeminus, M. Masseter, M. Extensor carpi radialis longus, M. Tibialis Anterior
Between-group differences in endogenous pain facilitation by means of a temporal summation protocol (expressed in pain scores (numeric rating scales, NRS)At baselineTemporal Summation is performed with the Contact Heat-Evoked Potential Stimulator (CHEPS) model. Temporal summation is evaluated at the M. tibialis anterior and the M. extensor carpi radialis longus. The temperature corresponding with the mean score of the 6/10 NRS score (heat pain threshold) from the corresponding body part is used as the painful stimulus. Ten stimuli from the same heat are given to the participant with a thermode. After stimulus 1, 5 and 10 a beep sound is heard. At these moments the participant has to score the pain that they experience from the previous stimulus on the NRS from 0 to 10. Between stimuli the temperature goes back to the baseline temperature of 32°C. The velocity of the heating is 70°C/second and the velocity of the cooling down is 40°/second. Each stimulus is 0.5 seconds long with a frequency of 0.5 Hz.
Between-group differences in endogenous pain inhibition by means of conditioned pain modulation protocol (expressed in kgf and °)At baselineConditioned pain modulation is tested by asking the participant to put their non- non-dominant or non-painful dominant hand (up to the wrist joint) in a water bath of 45,5°C for 1 minute. This is the conditioning stimulus. After this, a PPT measurement is performed to measure pressure detection and pain thresholds again, at the level of the M. extensor carpi radialis longus. Two consecutive measurements of the PPTs are being performed with a 30 seconds interval in between. Thereafter, the non-dominant or non-painful hand is placed in the hot water for another minute and after this minute, heat detection and pain thresholds are evaluated again at the M. extensor carpi radialis longus. Both pressure and heat are the testing stimulus. Also, the NRS score (0-10) for the water was asked to know if they perceived the water as a high enough pain stimulus.
Between-group differences in self-reported signs of central sensitization by means of the Dutch version of the Central Sensitization Inventory (questionnaire)At baselineThe Central Sensitization Inventory measures the somatic and emotional symptoms commonly associated with central sensitization. It consists of two parts, one measuring 25 symptoms, the other asks whether patients have been previously diagnosed with ten specific diagnoses. A cut off of 40 out of 100 is used to determine the presence of self-reported signs of central sensitization (the higher the score, the higher the severity).
Tinnitus analysisAt baselineTinnitus analysis Psychoacoustic features of tinnitus will be determined using the same equipment that was used for pure tone audiometry. The tinnitus analysis included determining.
Between-group differences in self-reported lifestyle factorsAt baselineSelf-reported physical activity levels were evaluated using the Baecke Physical Activity Questionnaire. This questionnaire consists of 16 items assessing three different domains of physical activity: work, sports and leisure time. The total score varies between 3 and 15 with a higher score reflecting a greater level of physical activity.
Between-group differences in self-reported quality of lifeAt baselineSelf-reported health-related quality of life will be evaluated using the SF- 36. This self-report questionnaire consists of 36 items that can be clustered into eight subscales: physical functioning, role limitations due to physical problems, bodily pain, general health, vitality, social functioning, role limitations due to emotional problems, and mental health. The summation of all subscales provides the total score (0-800).
Between-group differences in self-reported neck pain related measuresAt baselineThe Dutch version of the Neck Disability Index (NDI) will be used to evaluate the level of self-reported pain-related disability. The NDI consists of 10 items and has a total score of 50. Higher NDI scores reflect higher levels of neck pain-related disability. A score between 0 and 4 reflects no disability, a score between 5 and 14 indicates mild disability, between 15 and 24 moderate disability, between 25 and 34 severe disability and \> 35 is considered as complete disability. (
Between-group differences in self-reported tinnitus related measuresAt baselineThe Dutch validated version of the Tinnitus Sample Case History Questionnaire (TSCHQ) will be used for the standardized collection of information regarding the tinnitus history, tinnitus characteristics, modulating factors and other symptoms such as neck pain or headache.
Cognitive functioningAt baselineThe Auditory Stroop test will be used to measure cognitive flexibility and inhibition.
Between-group differences in self-reported psychological factorsAt baselineThree negative emotional dimensions: 'depression', 'anxiety' and 'stress were evaluated using the self-report Depression Anxiety and Stress Scale 21 (DASS21), which is a short version of the DASS.The total score ranges between 0 and 126 and higher scores indicate more severe negative emotional status.

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026