Spinocerebellar AtaxiasRISCANCT01037777
RISCA : Prospective Study of Individuals at Risk for SCA1, SCA2, SCA3, SCA6, SCA7
An observational study of Spinocerebellar Ataxias, run by Institut National de la Santé Et de la Recherche Médicale, France at 1 site in France.
Trial summary
The spinocerebellar ataxias (SCAs) are a clinically and genetically heterogeneous group of autosomal dominantly inherited progressive ataxia disorders. It is estimated that there are 30,000 individuals in the European Community that directly descend from individuals affected by a SCA disorder and thus carry a 50% risk… Read more about this study
- Who is it for?
- Ages 18 to 70 years
- Conditions the study is for
- Spinocerebellar Ataxias
- How many people
- 37 participants
- Where
- 1 siteFrance
- Study dates
- 7 May 2009to 14 Dec 2017
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: French population
Who may be able to join
- individuals at risk for spinocerebellar ataxia type 1, type 2, type 3, type 6 and type 7 (SCA1, SCA2, SCA3, SCA6 and SCA7)
- age between 18 and 50 years old for SCA1, SCA2, SCA3 or SCA7
- age between 35 and 70 years old for SCA6
- no clinical sign of ataxia (SARA < 3)
Who cannot join
- no writing consent
- no family members affected
- presence of clinical sign of ataxia (SARA > 3)
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Prospective Study of Individuals at Risk for Spinocerebellar Ataxia Type 1, Type 2, Type 3, Type 6 and Type 7 (SCA1, SCA2, SCA3, SCA6, SCA7)
The spinocerebellar ataxias (SCAs) are a clinically and genetically heterogeneous group of autosomal dominantly inherited progressive ataxia disorders. It is estimated that there are 30,000 individuals in the European Community that directly descend from individuals affected by a SCA disorder and thus carry a 50% risk of having inherited an SCA mutation. These at risk individuals provide a unique research opportunity to prospectively study the presymptomatic phase of SCA disorders and to identify the earliest and most sensitive clinical signs and biological markers that herald the onset of the illness. This information is of critical importance for the development of future therapeutic interventions aimed at postponing the clinical onset of ataxia.
We therefore propose to perform a prospective observational study of individuals at risk for the most common SCA disorders, SCA1, SCA2, SCA3 and SCA6 (RISCA). It is our aim to answer the following questions: (1) What is the incidence of disease manifestation in mutation carriers? (2) Which clinical signs precede the onset of manifest ataxia in SCA1, SCA2, SCA3 and SCA6? (3) What are the prevalence and incidence of preceding signs? (4) Are the prevalence and incidence of preceding signs affected by genotype, gender, age, estimated time until disease manifestation and repeat length? (5) Does the presence of certain preceding signs predict the manifestation of ataxia ? (6) Are there MRI alterations that precede the onset of ataxia? It is planned to enroll 480 study participants and to follow them at regular intervals over six years. At each visit, study participants are asked in a structured interview for a number of predefined clinical signs that potentially precede the onset of ataxia. In addition, the following self-assessment scales will be applied: Pittsburgh Sleep Quality Index (PSQI), Diagnostic Criteria for Restless Legs Syndrome, Patient´s Health Questionnaire (PHQ-9). All study participants will undergo a physical examination including the Scale for the Assessment and Rating of Ataxia (SARA). Study participants will further perform the SCA Functional Composite (SCA-FC) which is a comprehensive measure of functional capacity based on results in quantitative tests related to gait (8m timed walk), speech (PATA rate) and hand function (9 hole pegboard). In a subset of study participants, we will record eye movements and obtain volumetric MRIs. The study will also be used to collect and store blood and urine samples for proteomic and gene expression studies.
RISCA is conducted by the Ataxia Study Group (ASG). It relies on the network structure created by the EUROSCA project.
- Conditions
- Spinocerebellar Ataxias
- Keywords
- individuals at risk for SCA1, SCA2, SCA3, SCA6 and SCA7
- Medical subject headings
- Spinocerebellar Ataxias
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| presymptomatic carriers | Not described | |
| non carrier relatives | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Determination of the incidence rate of ataxia onset among mutation carriers
Blood sample for a genetic test. Identification of individuals carrying a mutation for SCA types 1, 2, 3, 6, and 7
Measured: Day 0
Confidence Rating for Ataxia Assessment
The invetigator must specify the degree of confidence in the presence of specific signs that may be associated with SCA ataxia . 90-100 % : investigator very confident in the diagnosis of ataxia, 70-89 % : high confidence, but with some uncertainty, 50-69 % : moderate confidence, <50 % : significant uncertainty.
Measured: Day 0, Month 24, Month 48, Month 72
INAS scoring in ataxia (Inventory of Non-Ataxia Signs)
Score range 0-16. 0 : No nonataxia signsdetected. Higher score : more non-ataxia neurological signs are present
Measured: Day 0, Month 24, Month 48, Month 72
Assessmet of sleep quality in ataxia : PSQI (Pittsburg Sleep Quality Index)
The global PSQI score ranges from 0 to 21. 0-5 : good sleep quality. >5 : Poor sleep quality / clinically significant slep disturbance. Higher scores : worse sleep quality
Measured: Day 0, Month 24, Month 48, Month 72
Restless Legs Syndrome (RLS) assessment in Ataxia
Total Score : 0-40 0 : No RLS symptoms, 1-10 : Mild, 11-20 : Moderate, 21-30 : Severe, 31-40 : Very severe.
Measured: Day 0, Month 24, Month 48, Month 72
Assessment of depression by Patient's Health Questionnaire PHQ-9
Used to evaluatethe severity of depressive symptoms, giving a total score rangong from 0 to 27. 0-4 : minimal or no deprssive symptoms, 5-9 : mild depression, 10-14 : moderate depression, 15-19 : moderately severe depression, 20-27 : severe depression
Measured: Day 0, Month 24, Month 48, Month 72
Assessment of the disease's impact on quality of life based on EQ-5D index (EuroQoL-5 Dimensions)
It generally ranges from less than 0 to 1 (perfect health). Higher scores indicate a better quality of life
Measured: Day 0, Month 24, Month 48, Month 72
Assessment and Rating of Ataxia
SARA (Scale of Assessment and Rating Ataxia) is an 8-item performance based scale, yielding a total score of 0 (no ataxia) to 40 (most severe ataxia).
Measured: Day 0, Month 24, Month 48, Month 72
Functional assessment of the severity of ataxia
Using CCFS (Composite Cerebellar Functional Severity Score) method for assessing cerebellar ataxia across a wide range of severity. =0,85 : average value in an individual without ataxia. 0,90-1,00 : very mild or early-stage cerebellar impairment. 1,00-1,20 : Mild to moderate cerebellar impairment. >1,2 : More pronounced cerebellar impairment.
Measured: Day 0, Month 24, Month 48, Month 72
Upper Limb motor coordination assessment
A device equipped with a pre-calibrated force sensor that measures grip strength and lifting capacity, and a Polhemus 3D position sensor that measures position along the -x, -y, and -z axes and the object's orientation to assess movement. Grip force variability coefficient is calculated : Lowe % (more stable greap force control) - Higher % (greater variability and poorer motor coordination)
Measured: Day 0, Month 24, Month 48, Month 72
Finger tapping assessment
Number of taps within 10 seconds (higher = better)
Measured: Day 0, Month 24, Month 48, Month 72
GAITRite in an ataxia assessment
The participant walks along a carpet equipped with sensors that record the time it takes to make a step as well as the position of the feet.
Measured: Day 0, Month 24, Month 48, Month 72
Secondary outcomes (6)
Functional performance assessment by 8MW test (8 meters walking time)
Measure in seconds, the time needed to cover a distance of 8 meters as quickly and safely as possible
Measured: Day 0, Month 24, Month 48, Month 72
Functional performance assessment by 9HPT : Nine Hole Peg Test
The test consists of insertingand removing 9 wooden pegs from a board as quickly as possible, using only one hand. A healthy adult completes the test in about 10 to 20 seconds.
Measured: Day 0, Month 24, Month 48, Month 72
Functional performance assessment by by PATA
It involves counting the number of clear répétitions of the syllable or sentence " pa-ta " that a patient can produce in 10 seconds
Measured: Day 0, Month 24, Month 48, Month 72
Assessment of retinal thickness
By using Optical Coherence Tomography (OCT) scan
Measured: Day 0, Month 24, Month 48, Month 72
Identification of slow saccades during eye tracking
By recording of eye movements
Measured: Day 0, Month 24, Month 48, Month 72
Evaluation of the functional connectivity
Brain imaging will help determine whether functional connectivity between the cortex and the cerebellum is impaired
Measured: Day 0, Month 72
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Dec 2009 (estimated)
- Study start7 May 2009
- Primary completionDec 2017
- Study completion14 Dec 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Spinocerebellar AtaxiasStudies of the same condition, open and under way.
- More trials run by Institut National de la Santé Et de la Recherche Médicale, FranceThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Family based
- Time perspective
- Prospective
- Enrolment
- 37 participants (actual)
Sponsor and investigators
- Sponsor type
- Other government
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01037777
- Sponsor's protocol ID
- C08-37
- Acronym
- RISCA
- Status last verified
- Aug 2021
- First submitted
- 21 Dec 2009
- Last updated
- 19 Aug 2026
- Results posted
- No
Publications
Wilke C, Haas E, Reetz K, Faber J, Garcia-Moreno H, Santana MM, van de Warrenburg B, Hengel H, Lima M, Filla A, Durr A, Melegh B, Masciullo M, Infante J, Giunti P, Neumann M, de Vries J, Pereira de Almeida L, Rakowicz M, Jacobi H, Schule R, Kaeser SA, Kuhle J, Klockgether T, Schols L; SCA3 neurofilament study group; Barro C, Hubener-Schmid J, Synofzik M. Neurofilaments in spinocerebellar ataxia type 3: blood biomarkers at the preataxic and ataxic stage in humans and mice. EMBO Mol Med. 2020 Jul 7;12(7):e11803. doi: 10.15252/emmm.201911803. Epub 2020 Jun 8.
PubMed 32510847Jacobi H, du Montcel ST, Romanzetti S, Harmuth F, Mariotti C, Nanetti L, Rakowicz M, Makowicz G, Durr A, Monin ML, Filla A, Roca A, Schols L, Hengel H, Infante J, Kang JS, Timmann D, Casali C, Masciullo M, Baliko L, Melegh B, Nachbauer W, Burk-Gergs K, Schulz JB, Riess O, Reetz K, Klockgether T. Conversion of individuals at risk for spinocerebellar ataxia types 1, 2, 3, and 6 to manifest ataxia (RISCA): a longitudinal cohort study. Lancet Neurol. 2020 Sep;19(9):738-747. doi: 10.1016/S1474-4422(20)30235-0.
PubMed 32822634Wilke C, Mengel D, Schols L, Hengel H, Rakowicz M, Klockgether T, Durr A, Filla A, Melegh B, Schule R, Reetz K, Jacobi H, Synofzik M. Levels of Neurofilament Light at the Preataxic and Ataxic Stages of Spinocerebellar Ataxia Type 1. Neurology. 2022 May 17;98(20):e1985-e1996. doi: 10.1212/WNL.0000000000200257. Epub 2022 Mar 9.
PubMed 35264424Jacobi H, Reetz K, du Montcel ST, Bauer P, Mariotti C, Nanetti L, Rakowicz M, Sulek A, Durr A, Charles P, Filla A, Antenora A, Schols L, Schicks J, Infante J, Kang JS, Timmann D, Di Fabio R, Masciullo M, Baliko L, Melegh B, Boesch S, Burk K, Peltz A, Schulz JB, Dufaure-Gare I, Klockgether T. Biological and clinical characteristics of individuals at risk for spinocerebellar ataxia types 1, 2, 3, and 6 in the longitudinal RISCA study: analysis of baseline data. Lancet Neurol. 2013 Jul;12(7):650-8. doi: 10.1016/S1474-4422(13)70104-2. Epub 2013 May 22.
PubMed 23707147Tezenas du Montcel S, Durr A, Rakowicz M, Nanetti L, Charles P, Sulek A, Mariotti C, Rola R, Schols L, Bauer P, Dufaure-Gare I, Jacobi H, Forlani S, Schmitz-Hubsch T, Filla A, Timmann D, van de Warrenburg BP, Marelli C, Kang JS, Giunti P, Cook A, Baliko L, Melegh B, Boesch S, Szymanski S, Berciano J, Infante J, Buerk K, Masciullo M, Di Fabio R, Depondt C, Ratka S, Stevanin G, Klockgether T, Brice A, Golmard JL. Prediction of the age at onset in spinocerebellar ataxia type 1, 2, 3 and 6. J Med Genet. 2014 Jul;51(7):479-86. doi: 10.1136/jmedgenet-2013-102200. Epub 2014 Apr 29.
PubMed 24780882
Study at a glance
From the registry record, last updated by the sponsor on 19 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prospective Study of Individuals at Risk for Spinocerebellar Ataxia Type 1, Type 2, Type 3, Type 6 and Type 7 (SCA1, SCA2, SCA3, SCA6, SCA7)
- ClinicalTrials.gov ID
- NCT01037777
- Acronym / sponsor ID
- RISCA / C08-37
- Conditions
- Spinocerebellar Ataxias
- Keywords
- individuals at risk for SCA1, SCA2, SCA3, SCA6 and SCA7
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 37 participants (actual)
- Lead sponsor
- Institut National de la Santé Et de la Recherche Médicale, FranceOther government
- Study start
- 7 May 2009 (actual)
- Primary completion
- Dec 2017 (actual)
- Study completion
- 14 Dec 2017 (actual)
- First posted
- 23 Dec 2009 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The spinocerebellar ataxias (SCAs) are a clinically and genetically heterogeneous group of autosomal dominantly inherited progressive ataxia disorders. It is estimated that there are 30,000 individuals in the European Community that directly descend from individuals affected by a SCA disorder and thus carry a 50% risk of having inherited an SCA mutation. These at risk individuals provide a unique research opportunity to prospectively study the presymptomatic phase of SCA disorders and to identify the earliest and most sensitive clinical signs and biological markers that herald the onset of the illness. This information is of critical importance for the development of future therapeutic interventions aimed at postponing the clinical onset of ataxia.
We therefore propose to perform a prospective observational study of individuals at risk for the most common SCA disorders, SCA1, SCA2, SCA3 and SCA6 (RISCA). It is our aim to answer the following questions: (1) What is the incidence of disease manifestation in mutation carriers? (2) Which clinical signs precede the onset of manifest ataxia in SCA1, SCA2, SCA3 and SCA6? (3) What are the prevalence and incidence of preceding signs? (4) Are the prevalence and incidence of preceding signs affected by genotype, gender, age, estimated time until disease manifestation and repeat length? (5) Does the presence of certain preceding signs predict the manifestation of ataxia ? (6) Are there MRI alterations that precede the onset of ataxia? It is planned to enroll 480 study participants and to follow them at regular intervals over six years. At each visit, study participants are asked in a structured interview for a number of predefined clinical signs that potentially precede the onset of ataxia. In addition, the following self-assessment scales will be applied: Pittsburgh Sleep Quality Index (PSQI), Diagnostic Criteria for Restless Legs Syndrome, Patient´s Health Questionnaire (PHQ-9). All study participants will undergo a physical examination including the Scale for the Assessment and Rating of Ataxia (SARA). Study participants will further perform the SCA Functional Composite (SCA-FC) which is a comprehensive measure of functional capacity based on results in quantitative tests related to gait (8m timed walk), speech (PATA rate) and hand function (9 hole pegboard). In a subset of study participants, we will record eye movements and obtain volumetric MRIs. The study will also be used to collect and store blood and urine samples for proteomic and gene expression studies.
RISCA is conducted by the Ataxia Study Group (ASG). It relies on the network structure created by the EUROSCA project.
Study design
- Observational model
- Family based
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| presymptomatic carriers | – | – |
| non carrier relatives | – | – |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- French population
Key inclusion criteria (4 listed)
- individuals at risk for spinocerebellar ataxia type 1, type 2, type 3, type 6 and type 7 (SCA1, SCA2, SCA3, SCA6 and SCA7)
- age between 18 and 50 years old for SCA1, SCA2, SCA3 or SCA7
- age between 35 and 70 years old for SCA6
- no clinical sign of ataxia (SARA < 3)
Key exclusion criteria (3 listed)
- no writing consent
- no family members affected
- presence of clinical sign of ataxia (SARA > 3)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Determination of the incidence rate of ataxia onset among mutation carriers
Time frame: Day 0
Blood sample for a genetic test. Identification of individuals carrying a mutation for SCA types 1, 2, 3, 6, and 7
Confidence Rating for Ataxia Assessment
Time frame: Day 0, Month 24, Month 48, Month 72
The invetigator must specify the degree of confidence in the presence of specific signs that may be associated with SCA ataxia . 90-100 % : investigator very confident in the diagnosis of ataxia, 70-89 % : high confidence, but with some uncertainty, 50-69 % : moderate confidence, <50 % : significant uncertainty.
INAS scoring in ataxia (Inventory of Non-Ataxia Signs)
Time frame: Day 0, Month 24, Month 48, Month 72
Score range 0-16. 0 : No nonataxia signsdetected. Higher score : more non-ataxia neurological signs are present
Assessmet of sleep quality in ataxia : PSQI (Pittsburg Sleep Quality Index)
Time frame: Day 0, Month 24, Month 48, Month 72
The global PSQI score ranges from 0 to 21. 0-5 : good sleep quality. >5 : Poor sleep quality / clinically significant slep disturbance. Higher scores : worse sleep quality
Restless Legs Syndrome (RLS) assessment in Ataxia
Time frame: Day 0, Month 24, Month 48, Month 72
Total Score : 0-40 0 : No RLS symptoms, 1-10 : Mild, 11-20 : Moderate, 21-30 : Severe, 31-40 : Very severe.
Assessment of depression by Patient's Health Questionnaire PHQ-9
Time frame: Day 0, Month 24, Month 48, Month 72
Used to evaluatethe severity of depressive symptoms, giving a total score rangong from 0 to 27. 0-4 : minimal or no deprssive symptoms, 5-9 : mild depression, 10-14 : moderate depression, 15-19 : moderately severe depression, 20-27 : severe depression
Assessment of the disease's impact on quality of life based on EQ-5D index (EuroQoL-5 Dimensions)
Time frame: Day 0, Month 24, Month 48, Month 72
It generally ranges from less than 0 to 1 (perfect health). Higher scores indicate a better quality of life
Assessment and Rating of Ataxia
Time frame: Day 0, Month 24, Month 48, Month 72
SARA (Scale of Assessment and Rating Ataxia) is an 8-item performance based scale, yielding a total score of 0 (no ataxia) to 40 (most severe ataxia).
Functional assessment of the severity of ataxia
Time frame: Day 0, Month 24, Month 48, Month 72
Using CCFS (Composite Cerebellar Functional Severity Score) method for assessing cerebellar ataxia across a wide range of severity. =0,85 : average value in an individual without ataxia. 0,90-1,00 : very mild or early-stage cerebellar impairment. 1,00-1,20 : Mild to moderate cerebellar impairment. >1,2 : More pronounced cerebellar impairment.
Upper Limb motor coordination assessment
Time frame: Day 0, Month 24, Month 48, Month 72
A device equipped with a pre-calibrated force sensor that measures grip strength and lifting capacity, and a Polhemus 3D position sensor that measures position along the -x, -y, and -z axes and the object's orientation to assess movement. Grip force variability coefficient is calculated : Lowe % (more stable greap force control) - Higher % (greater variability and poorer motor coordination)
Finger tapping assessment
Time frame: Day 0, Month 24, Month 48, Month 72
Number of taps within 10 seconds (higher = better)
GAITRite in an ataxia assessment
Time frame: Day 0, Month 24, Month 48, Month 72
The participant walks along a carpet equipped with sensors that record the time it takes to make a step as well as the position of the feet.
6 secondary outcomes
Functional performance assessment by 8MW test (8 meters walking time)
Time frame: Day 0, Month 24, Month 48, Month 72
Functional performance assessment by 9HPT : Nine Hole Peg Test
Time frame: Day 0, Month 24, Month 48, Month 72
Functional performance assessment by by PATA
Time frame: Day 0, Month 24, Month 48, Month 72
Assessment of retinal thickness
Time frame: Day 0, Month 24, Month 48, Month 72
Identification of slow saccades during eye tracking
Time frame: Day 0, Month 24, Month 48, Month 72
Evaluation of the functional connectivity
Time frame: Day 0, Month 72
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Aug 2026.
- Results publication: PubMed 32510847Wilke C, Haas E, Reetz K, Faber J, Garcia-Moreno H, Santana MM, van de Warrenburg B, Hengel H, Lima M, Filla A, Durr A, Melegh B, Masciullo M, Infante J, Giunti P, Neumann M, de Vries J, Pereira de Almeida L, Rakowicz M, Jacobi H, Schule R, Kaeser SA, Kuhle J, Klockgether T, Schols L; SCA3 neurofilament study group; Barro C, Hubener-Schmid J, Synofzik M. Neurofilaments in spinocerebellar ataxia type 3: blood biomarkers at the preataxic and ataxic stage in humans and mice. EMBO Mol Med. 2020 Jul 7;12(7):e11803. doi: 10.15252/emmm.201911803. Epub 2020 Jun 8.
- Results publication: PubMed 32822634Jacobi H, du Montcel ST, Romanzetti S, Harmuth F, Mariotti C, Nanetti L, Rakowicz M, Makowicz G, Durr A, Monin ML, Filla A, Roca A, Schols L, Hengel H, Infante J, Kang JS, Timmann D, Casali C, Masciullo M, Baliko L, Melegh B, Nachbauer W, Burk-Gergs K, Schulz JB, Riess O, Reetz K, Klockgether T. Conversion of individuals at risk for spinocerebellar ataxia types 1, 2, 3, and 6 to manifest ataxia (RISCA): a longitudinal cohort study. Lancet Neurol. 2020 Sep;19(9):738-747. doi: 10.1016/S1474-4422(20)30235-0.
- Results publication: PubMed 35264424Wilke C, Mengel D, Schols L, Hengel H, Rakowicz M, Klockgether T, Durr A, Filla A, Melegh B, Schule R, Reetz K, Jacobi H, Synofzik M. Levels of Neurofilament Light at the Preataxic and Ataxic Stages of Spinocerebellar Ataxia Type 1. Neurology. 2022 May 17;98(20):e1985-e1996. doi: 10.1212/WNL.0000000000200257. Epub 2022 Mar 9.
- Results publication: PubMed 23707147Jacobi H, Reetz K, du Montcel ST, Bauer P, Mariotti C, Nanetti L, Rakowicz M, Sulek A, Durr A, Charles P, Filla A, Antenora A, Schols L, Schicks J, Infante J, Kang JS, Timmann D, Di Fabio R, Masciullo M, Baliko L, Melegh B, Boesch S, Burk K, Peltz A, Schulz JB, Dufaure-Gare I, Klockgether T. Biological and clinical characteristics of individuals at risk for spinocerebellar ataxia types 1, 2, 3, and 6 in the longitudinal RISCA study: analysis of baseline data. Lancet Neurol. 2013 Jul;12(7):650-8. doi: 10.1016/S1474-4422(13)70104-2. Epub 2013 May 22.
- Results publication: PubMed 24780882Tezenas du Montcel S, Durr A, Rakowicz M, Nanetti L, Charles P, Sulek A, Mariotti C, Rola R, Schols L, Bauer P, Dufaure-Gare I, Jacobi H, Forlani S, Schmitz-Hubsch T, Filla A, Timmann D, van de Warrenburg BP, Marelli C, Kang JS, Giunti P, Cook A, Baliko L, Melegh B, Boesch S, Szymanski S, Berciano J, Infante J, Buerk K, Masciullo M, Di Fabio R, Depondt C, Ratka S, Stevanin G, Klockgether T, Brice A, Golmard JL. Prediction of the age at onset in spinocerebellar ataxia type 1, 2, 3 and 6. J Med Genet. 2014 Jul;51(7):479-86. doi: 10.1136/jmedgenet-2013-102200. Epub 2014 Apr 29.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Spinocerebellar Ataxias, run by Institut National de la Santé Et de la Recherche Médicale, France at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 19 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Determination of the incidence rate of ataxia onset among mutation carriers (time frame: Day 0). The study lists 12 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01037777, which also lists 5 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Aug 2026.