Neuropsychiatry and Cognition in SCA3/MJD
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ClinicalTrials.gov Identifier: NCT04714307 |
Recruitment Status :
Recruiting
First Posted : January 19, 2021
Last Update Posted : January 19, 2021
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Condition or disease | Intervention/treatment |
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Spinocerebellar Ataxia Type 3 Machado-Joseph Disease SCA3 MJD | Diagnostic Test: SCA3/MJD molecular diagnosis Diagnostic Test: Cognitive Testing Diagnostic Test: Psychiatric Evaluation Diagnostic Test: Clinical Neurological Evaluation Diagnostic Test: Emotional Attribution Evaluation Diagnostic Test: Activities of Daily Living |
Study Type : | Observational |
Estimated Enrollment : | 144 participants |
Observational Model: | Case-Control |
Time Perspective: | Cross-Sectional |
Official Title: | Neuropsychiatry and Cognition in the Context of Spinocerebellar Ataxia Type 3/Machado-Joseph Disease (SCA3/MJD) |
Actual Study Start Date : | December 13, 2019 |
Estimated Primary Completion Date : | February 1, 2021 |
Estimated Study Completion Date : | August 1, 2023 |

Group/Cohort | Intervention/treatment |
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Symptomatic
Molecularly diagnosed SCA3/MJD Symptomatic subjects.
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Diagnostic Test: Cognitive Testing
Cross-sectional Cognitive evaluation with
Diagnostic Test: Psychiatric Evaluation Cross-sectional Psychiatric evaluation with Hamilton-Anxiety and Hamilton-Depression rating scales. Diagnostic Test: Clinical Neurological Evaluation Cross-sectional neurological evaluation with standardized clinical scales - SARA, SCAFI and CCFS. Diagnostic Test: Emotional Attribution Evaluation Cross-sectional emotional attribution evaluation by means of the Reading the Mind in the Eyes Test (RMET). Diagnostic Test: Activities of Daily Living Cross-sectional evaluation of Activities of Daily Living (ADLs) by means of Friedreich Ataxia Rating Scale Part II. |
Non-related Controls
Controls matched with symptomatic by age and educational level.
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Diagnostic Test: Cognitive Testing
Cross-sectional Cognitive evaluation with
Diagnostic Test: Psychiatric Evaluation Cross-sectional Psychiatric evaluation with Hamilton-Anxiety and Hamilton-Depression rating scales. Diagnostic Test: Emotional Attribution Evaluation Cross-sectional emotional attribution evaluation by means of the Reading the Mind in the Eyes Test (RMET). |
At 50% risk for SCA3/MJD group
The offspring of affected individuals with SARA<3. This group will be comprised of two subpopulations: pre-symptomatic individuals and related controls. The determination will be made upon molecular diagnosis to be done in a double-blind manner.
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Diagnostic Test: SCA3/MJD molecular diagnosis
Double-blind molecular diagnosis for determination of the presence of the mutation. Diagnostic Test: Cognitive Testing Cross-sectional Cognitive evaluation with
Diagnostic Test: Psychiatric Evaluation Cross-sectional Psychiatric evaluation with Hamilton-Anxiety and Hamilton-Depression rating scales. Diagnostic Test: Clinical Neurological Evaluation Cross-sectional neurological evaluation with standardized clinical scales - SARA, SCAFI and CCFS. Diagnostic Test: Emotional Attribution Evaluation Cross-sectional emotional attribution evaluation by means of the Reading the Mind in the Eyes Test (RMET). Diagnostic Test: Activities of Daily Living Cross-sectional evaluation of Activities of Daily Living (ADLs) by means of Friedreich Ataxia Rating Scale Part II. |
- Cerebellar Cognitive Affective Syndrome Scale [ Time Frame: Through study completion, an average of 1 year ]Study the performance on the Cerebellar Cognitive Affective Syndrome Scale of SCA3/MJD symptomatic subjects when compared to matched healthy controls and of pre-symptomatic subjects when compared to familial healthy controls.
- Trail-Making Test Part A and B [ Time Frame: Through study completion, an average of 1 year ]Study the performance on the Trail-Making Test Part A and B of SCA3/MJD symptomatic subjects when compared to matched healthy controls and of pre-symptomatic subjects when compared to familial healthy controls.
- Stroop Color-Word Test [ Time Frame: Through study completion, an average of 1 year ]Study the performance on the Stroop Color-Word Test of SCA3/MJD symptomatic subjects when compared to matched healthy controls and of pre-symptomatic subjects when compared to familial healthy controls.
- Emotion Attribution impairment in SCA3/MJD [ Time Frame: Through study completion, an average of 1 year ]Study the performance of symptomatic SCA3/MJD carriers in the Reading the Mind in the Eyes Test.
- Emotion Attribution in different phases of the disease [ Time Frame: Through study completion, an average of 1 year ]Study the performance of pre-symptomatic SCA3/MJD carriers in the Reading the Mind in the Eyes Test.
- Hamilton Anxiety Rating Scale [ Time Frame: Through study completion, an average of 1 year ]Study the profile of symptomatic and pre-symptomatic SCA3/MJD carriers in the Hamilton Anxiety Rating Scale.
- Hamilton Depression Rating Scale [ Time Frame: Through study completion, an average of 1 year ]Study the profile of symptomatic and pre-symptomatic SCA3/MJD carriers in the Hamilton Depression Rating Scale.
- Scale for the Assessment and Rating of Ataxia (SARA) [ Time Frame: Through study completion, an average of 1 year ]Correlations between primary outcomes and SARA.
- Composite Cerebellar Functional Severity Score (CCFS) [ Time Frame: Through study completion, an average of 1 year ]Correlations between primary outcomes and CCFS.
- SCA Functional Index [ Time Frame: Through study completion, an average of 1 year ]Correlations between primary outcomes and SCAFI.
- Friedreich Ataxia Rating Scale part II (FARS part II) [ Time Frame: Through study completion, an average of 1 year ]Correlations between primary outcomes and Activities of Daily Living from FARS part II.
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Symptomatic:
- older than 18 year old;
- molecular diagnosis of SCA3/MJD;
- SARA>2.5.
- At 50% risk:
- older than 18 year old;
- have a parent with molecular diagnosis of SCA3/MJD;
- SARA<3.
- Healthy Controls
- older than 18 year old;
- no genetic relationship with a SCA3/MJD carrier.
Exclusion Criteria:
- Non agreement in signing the informed consent;
- Healthy Controls: having any history of genetic disorders in their families or any psychiatric or neurologic disorder.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04714307
Contact: Laura B. Jardim, MD, PhD | +55513359-8011 | ljardim@hcpa.edu.br | |
Contact: Gabriela Bolzan, MD | +55513359-8011 | gbgabrielabolzan@gmail.com |
Brazil | |
Hospital de Clinicas de Porto Alegre | Recruiting |
Porto Alegre, Rio Grande Do Sul, Brazil, 90035-903 | |
Contact: Laura B. Jardim, MD, PhD +555133598011 ljardim@hcpa.edu.br | |
Contact: Gabriela Bolzan, MD +555133598011 gbgabrielabolzan@gmail.com | |
Principal Investigator: Laura B. Jardim, MD, PhD | |
Sub-Investigator: Gabriela Bolzan, MD |
Principal Investigator: | Laura B. Jardim, MD, PhD | Hospital de Clinicas de Porto Alegre and Universidade Federal do Rio Grande do Sul |
Responsible Party: | Hospital de Clinicas de Porto Alegre |
ClinicalTrials.gov Identifier: | NCT04714307 |
Other Study ID Numbers: |
20190606 |
First Posted: | January 19, 2021 Key Record Dates |
Last Update Posted: | January 19, 2021 |
Last Verified: | January 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Data sharing will be done via direct contact with the Principal Investigator in order to preserve individual participants identities. |
Supporting Materials: |
Study Protocol Informed Consent Form (ICF) Clinical Study Report (CSR) |
Time Frame: | Data will become available after final statistical analysis and data publishing via direct contact with principal investigator. |
Access Criteria: | Investigators and researchers of the area |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Ataxia Spinocerebellar Ataxias Spinocerebellar Degenerations Machado-Joseph Disease Dyskinesias Neurologic Manifestations Nervous System Diseases Cerebellar Ataxia |
Cerebellar Diseases Brain Diseases Central Nervous System Diseases Spinal Cord Diseases Heredodegenerative Disorders, Nervous System Neurodegenerative Diseases Genetic Diseases, Inborn |