Sensory Symptoms in Tourette Syndrome

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorVanderbilt University Medical Center

About this trial

Patients with tics will be asked to complete a series of validated questionnaires (in electronic and/or paper format) regarding symptoms and conditions often associated with Tourette syndrome, including premonitory urges, sensory experiences, inattention, obsessive-compulsive tendencies, anxiety, and depression. Participants will also be asked to complete a quality of life assessment. This series of questionnaires will be administered annually.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

18 years of age or older

Ability to provide informed consent and answer self-report questionnaires independently in English

Diagnosis of Tourette syndrome (TS), chronic motor tic disorder, or chronic vocal tic disorder

Disqualifiers

History of psychotic disorder

History of significant neurologic disorder (e.g., stroke) other than TS or another chronic tic disorder

Trial population

Individuals 18 years and older with Tourette syndrome or other chronic tic disorder

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

Baseline Sensory Perception Quotient score, short form

Validated instrument assessing anomalous sensory experiences. Scale consists of 35 items screening patients for hyper- or hypo-sensitivity to each of the sensory domains (touch, sight, sound, smell, and taste). Each scale item is a statement to which participants provide a ranking: 0 = strongly agree 1. = agree 2. = disagree 3. = strongly disagree The minimum score on the short from is 0; the maximum score is 140. Higher scores indicate more abnormal sensory experiences.

Time frame
Initial assessment at enrollment (time zero)
2

Change in Sensory Perception Quotient score, short form at 1 year

Validated instrument assessing anomalous sensory experiences. Scale consists of 35 items screening patients for hyper- or hypo-sensitivity to each of the sensory domains (touch, sight, sound, smell, and taste). Each scale item is a statement to which participants provide a ranking: 0 = strongly agree 1. = agree 2. = disagree 3. = strongly disagree The minimum score on the short from is 0; the maximum score is 140. Higher scores indicate more abnormal sensory experiences.

Time frame
1 year
3

Change in Sensory Perception Quotient score, short form at 2 years

Validated instrument assessing anomalous sensory experiences. Scale consists of 35 items screening patients for hyper- or hypo-sensitivity to each of the sensory domains (touch, sight, sound, smell, and taste). Each scale item is a statement to which participants provide a ranking: 0 = strongly agree 1. = agree 2. = disagree 3. = strongly disagree The minimum score on the short from is 0; the maximum score is 140. Higher scores indicate more abnormal sensory experiences.

Time frame
2 years

Secondary outcomes

1

Change in Sensory Gating Inventory score at 2 years

Validated instrument assessing anomalous sensory experiences. The scale consists of 36 items screening patients for hyper- or hypo-sensitivity to several of the sensory domains (primarily sight and sound). Each scale item is a statement to which participants provide a ranking: 1. = never true 2. = infrequently true 3. = sometimes but infrequently true 4. = sometimes true 5. = true 6. = always true The minimum score on the scale is 36; the maximum score is 216. Higher scores indicate more abnormal sensory experiences.

Time frame
2 years
2

Change in Sensory Gating Inventory score at 1 year

Validated instrument assessing anomalous sensory experiences. The scale consists of 36 items screening patients for hyper- or hypo-sensitivity to several of the sensory domains (primarily sight and sound). Each scale item is a statement to which participants provide a ranking: 1. = never true 2. = infrequently true 3. = sometimes but infrequently true 4. = sometimes true 5. = true 6. = always true The minimum score on the scale is 36; the maximum score is 216. Higher scores indicate more abnormal sensory experiences.

Time frame
1 year
3

Baseline Sensory Gating Inventory score

Validated instrument assessing anomalous sensory experiences. The scale consists of 36 items screening patients for hyper- or hypo-sensitivity to several of the sensory domains (primarily sight and sound). Each scale item is a statement to which participants provide a ranking: 1. = never true 2. = infrequently true 3. = sometimes but infrequently true 4. = sometimes true 5. = true 6. = always true The minimum score on the scale is 36; the maximum score is 216. Higher scores indicate more abnormal sensory experiences.

Time frame
Initial assessment at enrollment (time zero)
4

Change in Premonitory Urge to Tic Scale score at 2 years

Validated instrument assessing type and extent of premonitory sensations. The scale consists of 9 scored items and 1 non-scored item, all assessing degree of abnormal sensations and urges preceding a tic. The scored scale items are ranked 1-4, with 4 being the most abnormal. The minimum score on the scale is 9; the maximum score is 36. Higher scores indicate more frequent and severe premonitory urges.

Time frame
2 years

Other outcomes

1

Yale Global Tic Severity Scale Total Tic Score at baseline

Validated, gold-standard clinician-administered tic assessment scale, comprised of 11 items. Scale range: 0 (best) - 100 (worst)

Time frame
Initial assessment at enrollment (time zero)
2

Change in Yale Global Tic Severity Scale Total Tic Score at 1 year

Validated, gold-standard clinician-administered tic assessment scale, comprised of 11 items. Scale range: 0 (best) - 100 (worst)

Time frame
1 year
3

Change in Yale Global Tic Severity Scale Total Tic Score at 2 years

Validated, gold-standard clinician-administered tic assessment scale, comprised of 11 items. Scale range: 0 (best) - 100 (worst)

Time frame
2 years
4

Dimensional Obsessive Compulsive Scale (DOCS) at baseline

Validated self-report questionnaire assessing severity of obsessive and compulsive symptoms, comprised of 20 items. Scale range 0 (least affected) - 80 (most affected)

Time frame
Initial assessment at enrollment (time zero)

Sponsors and contacts

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