Sporadic Degenerative Ataxia With Adult Onset: Natural History Study (SPORTAX-NHS)

June 28, 2017 updated by: Prof. Dr. Thomas Klockgether, Ataxia Study Group

Sporadic Degenerative Ataxia With Adult Onset: Natural History Study (SPORTAX-NHS)

The key goals of SPORTAX-NHS is to compare the phenotype of multiple system atrophy of cerebellar type (MSA-C) and sporadic adult onset ataxia of unknown aetiology (SAOA) and to determine the rate of disease progression in both groups including determination of the factors that predict the development of MSA-C vs. SAOA, and at which time after onset of ataxia, a reliable distinction between both disorders is possible.

The planned study will also allow to collect blood samples and other biomaterials from patients with sporadic ataxia, which will be useful for future genetic and biomarker studies.

Study Overview

Status

Recruiting

Detailed Description

Progressive ataxia frequently starts in adults without a familial background. These patients may suffer from an acquired ataxia or a genetically determined ataxia despite negative family history. In the majority of them, however, a genetic or acquired cause of ataxia cannot be identified suggesting a sporadic degenerative ataxia. They can be subdivided into two groups. In one group, the underlying brain disease is multiple system atrophy (MSA), specifically MSA of cerebellar type (MSA-C). The characteristic clinical feature of MSA is the presence of severe autonomic failure defined by orthostatic hypotension or urinary incontinence. The second group is distinguished from MSA-C by the lasting absence of severe autonomic failure. These patients have been designated as sporadic adult onset ataxia of unknown aetiology (SAOA). In the first years after ataxia onset, a distinction between MSA-C and SAOA is often not possible.

There are only few studies comparing the phenotype of MSA-C and SAOA, and longitudinal studies focussing on the evolution of the phenotype of these disorders are completely lacking. In particular, the progression rate of SAOA compared to MSA-C has not been defined. In addition, it is unknown which factors predict the development of MSA-C vs. SAOA, and at which time after onset of ataxia, a reliable distinction between both disorders is possible.

To answer these questions, we plan to create a European registry of patients with sporadic degenerative ataxia of adult onset and to perform a natural history study. The planned study will also allow to collect blood samples and other biomaterials from patients with sporadic ataxia, which will be useful for future genetic and biomarker studies.

Study Type

Observational

Enrollment (Anticipated)

300

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

The study population consists of patients with adult onset degenerative ataxia, in which acquired and genetic causes of ataxia have been excluded.

Description

Inclusion Criteria:

  • Progressive ataxia
  • Disease onset after the age of 40 years
  • Informative and negative family history (no similar disorders in first- and second-degree relatives; parents older than 50 years, or, if not alive, age at death of more than 50 years, no consanguinity of parents)

Exclusion Criteria:

  • No established acquired cause of ataxia

Clinical exclusion criteria:

  • No onset of ataxia in association with stroke, encephalitis, sepsis, hyperthermia or heat stroke;
  • no chronic diarrhea;
  • no unexplained visual loss;
  • no alcohol abuse;
  • no chronic intake of anticonvulsant drugs;
  • no other toxic causes; no malignancies;
  • no rapid progression (development of severe ataxia in less than 12 weeks);
  • no insulin-dependent diabetes mellitus

Imaging exclusion criteria:

  • No evidence of multiple sclerosis, ischemia, hemorrhage or tumor of the posterior fossa;
  • absence of signal abnormalities on T2/FLAIR-images except abnormalities compatible with MSA

Laboratory exclusion criteria:

  • Negative molecular genetic testing for FRDA (only required if there is no cerebellar atrophy on MRI, SCA1, SCA2, SCA3, SCA6, FMR1 premutation (only required if prominent tremor, cognitive impairment and signal abnormality on T2/FLAIR images in the middle cerebellar peduncle);
  • antineuronal antibodies negative (only required, if disease duration less than 3 years);
  • normal levels of vitamin B12;
  • VDRL negative;
  • normal thyreoid function

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
sporadic adult onset ataxia
SAOA denotes the non-hereditary degenerative adult-onset ataxia disorders that are distinct from multiple system atrophy (MSA). SAOA is a group of ataxia of unknown etiology characterized by a slowly progressive cerebellar syndrome starting around the age of 50 years. Possibly is accompanied by signs of mild autonomic dysfunction that do not meet the criteria of severe autonomic failure required for a diagnosis of MSA.
cerebellar multiple system atrophy
Multiple system atrophy of cerebellar type is a cerebellar syndrome with sporadic onset developing in midlife, with autonomic features of otherwise unexplained bladder dysfunction with or without erectile dysfunction in males, orthostatic hypotension and atrophy of the cerebellum, brainstem, and middle cerebellar peduncles.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Scale for the assessment and rating of ataxia (SARA)
Time Frame: through study completion, an average of 10 years
Both conditions (SAOA and MSAc) are part of neurodegenerative diseases, chronic progressive disorders. Their disease progression, can be measured using a validated ataxia scale, SARA. SARA was evaluated in two large validation trials performed by the EUROSCA clinical group and was found to be easy to use, reliable, and valid.
through study completion, an average of 10 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Inventory of non-ataxia signs (INAS)
Time Frame: through study completion, an average of 10 years
The occurrence of accompanying non-ataxia symptoms is recorded using INAS.
through study completion, an average of 10 years
spinocerebellar ataxia functional index (SCAFI)
Time Frame: through study completion, an average of 10 years
to assess the severity of ataxia in an objective way, three quantitative tests, 8m-walk, 9HPT (hole peg test) and PATA rate (timed speech task) are used.
through study completion, an average of 10 years
Unified Multiple System Atrophy Rating Scale (UMSARS)
Time Frame: through study completion, an average of 10 years
UMSARS is a validated scale for multiple system atrophy used to assess additional symptoms typically occurring in MSA. The scale comprises the following components: Part I, historical, 12 items; Part II, motor examination, 14 items; Part III, autonomic examination; and Part IV, global disability scale.
through study completion, an average of 10 years
Questionnaire for Cerebellar Multisystem Atrophy diagnostic criteria
Time Frame: through study completion, an average of 10 years

To distinguish between SAOA and MSAc adjusted criteria for multiple system atrophy of cerebellar type on the basis of consensus statement on the diagnostic criteria for MSAc are used (Second consensus statement on the diagnosis of multiple system atrophy: Neurology. 2008 Aug 26; 71(9): 670-676).

Probable MSAc requires a sporadic, progressive adult-onset disorder including rigorously defined autonomic failure and cerebellar ataxia. Possible cerebellar MSA requires a sporadic, progressive adult-onset disease including cerebellar ataxia and at least one feature suggesting autonomic dysfunction plus one other feature that may be a clinical or a neuroimaging abnormality (Babinski sign with hyperreflexia, Stridor, Parkinsonism (bradykinesia and rigidity), Atrophy on MRI of putamen, middle cerebellar peduncle, or pons, Hypometabolism on FDG-PET in putamen, Presynaptic nigrostriatal dopaminergic denervation on SPECT or PET. If both criteria are not met patient is classified as a SAOA.

through study completion, an average of 10 years
EQ-5D
Time Frame: through study completion, an average of 10 years
Health related Quality of life is assessed using EQ-5D, a generic instrument that has been developed and validated by the EuroQuol Group (1990) and is available in validated translations for use as a questionnaire.
through study completion, an average of 10 years
PHQ-9
Time Frame: through study completion, an average of 10 years
Assessment of depressive symptoms is done using a validated 9-item short form of the Patient Health Questionnaire (PHQ), a questionnaire that has been developed to screen for psychiatric co-morbidity in unselected populations
through study completion, an average of 10 years
Comparison of phenotype of cerebellar multiple system atrophy and sporadic adult onset ataxia of unknown etiology
Time Frame: through study completion, an average of 10 years
classified as "SAOA" can convert into MSAc, that is why they are followed with yearly clinical assessments.
through study completion, an average of 10 years
RBDSQ
Time Frame: through study completion, an average of 10 years
REM Behaviour Disorder Screening Questionnaire (RBDSQ)
through study completion, an average of 10 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Thomas Klockgether, MD, Department of Neurology, Bonn, Germany

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2010

Primary Completion (Anticipated)

December 1, 2030

Study Completion (Anticipated)

December 1, 2030

Study Registration Dates

First Submitted

January 28, 2016

First Submitted That Met QC Criteria

March 2, 2016

First Posted (Estimate)

March 8, 2016

Study Record Updates

Last Update Posted (Actual)

June 29, 2017

Last Update Submitted That Met QC Criteria

June 28, 2017

Last Verified

June 1, 2017

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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