Alzheimer DiseaseAnalzheimerNCT04844060
Cerebro Spinal Fluid Collection (CSF)
An observational study of Alzheimer Disease and Dementia With Lewy Bodies, run by University Hospital, Strasbourg, France at 1 site in France.
Trial summary
Cognitive neurodegenerative diseases are a major public health issue. At present, the diagnosis of certainty is still based on anatomopathological analyses. Even if the diagnostic tools available to clinicians have made it possible to improve probabilistic diagnosis during the patient's lifetime, there are still too… Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Alzheimer Disease, Dementia With Lewy Bodies, Frontotemporal Dementia
- What is being tested?
- Lumbar punction
- How many people
- 10,000 participants
- Where
- 1 siteFrance
- Study dates
- Feb 2010to Dec 2030
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: All patients with cognitive disorders observed at the memory center of Strasbourg and in whom a lumbar puncture is performed as part of the patient's diagnosis.
Who may be able to join
- Patients with lumbar puncture (LP)
- Patients with accurate clinical diagnosis
Who cannot join
- Patients who do not have a lumbar puncture
- Patients for whom no accurate diagnostic information is available
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
France1 site, 1 recruiting
- Recruiting
Service d'évaluation et Centre Mémoire de Ressources et de Recherche (CM2R), Hôpital de jour Saint François - Pôle de Gériatrie, Hôpitaux Universitaires de Strasbourg, Hôpital de la Robertsau
Strasbourg, 67091
Frédéric BLANC, MD/PhD, 33388115624, frédéric.blanc@chru-strasbourg.fr
Olivier BOUSIGES, PharmaD/PhD, 33388128909, olivier.bousiges@chru-strasbourg.fr
About this study
Official title: Analysis of Clinical Data and Diagnosis in Any Person Requiring an Assay of Alzheimer Biomarkers in Cerebrospinal Fluid
Cognitive neurodegenerative diseases are a major public health issue. At present, the diagnosis of certainty is still based on anatomopathological analyses. Even if the diagnostic tools available to clinicians have made it possible to improve probabilistic diagnosis during the patient's lifetime, there are still too many diagnostic errors and sub-diagnostic in this field. The arrival of biomarkers has made it possible to reduce these diagnostic errors, which were of the order of 25 to 30%. This high error rate is due to different parameters. These diseases are numerous and often present common symptoms due to the fact that common brain structures are affected. These diseases evolve progressively over several years and their early diagnosis, when the symptoms are discrete, makes them even more difficult to diagnose at this stage. In addition, co-morbidities are common in the elderly, further complicating the diagnosis of these diseases.
At present, the only cerebrospinal fluid (CSF) biomarkers that are routinely used for the biological diagnosis of neurodegenerative cognitive pathologies are those specific to Alzheimer's disease: Aβ42, Aβ40, Tau-total and Phospho-Tau. These biomarkers represent an almost indispensable tool in the diagnosis of dementia.
It is therefore important to determine whether Alzheimer's biomarkers can be disrupted in other neurodegenerative cognitive pathologies, but also to find biomarkers specific to these different pathologies by facilitating the implementation of clinical studies which will thus make it possible to improve their diagnosis.
- Conditions
- Alzheimer Disease, Dementia With Lewy Bodies, Frontotemporal Dementia, Parkinson's Disease Dementia, Multiple System Atrophy
- Being tested
- Lumbar punction
- Keywords
- CSF library, Database of patients with cognitive disorders
- Medical subject headings
- Alzheimer Disease, Lewy Body Disease, Frontotemporal Dementia, Multiple System Atrophy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Lumbar punctionOther
Lumbar punction
| Study group | Role | What they receive |
|---|---|---|
| Patients with cognitive impairment | All patients with cognitive disorders observed at the memory center of Strasbourg and in whom a lumbar puncture is performed as part of the patient's diagnosis. Receives: Other: Lumbar punction |
What is being measured
The primary outcome is the main question the study is designed to answer.
CSF collection
To create a database of patients with cognitive disorders in whom a lumbar puncture has been carried out in order to measure Alzheimer's biomarkers. This database would not only be biological but also clinical and diagnostic, including the results of neuropsychological tests, clinical examinations, the results of brain imaging (MRI, PET-FDG, DAT-SCAN,…) as well as the last diagnosis retained by the clinician in charge of the patient. Thus, after completing this database, the main objective is to evaluate the proportion of different diseases that have led to the decision to search for Alzheimer biomarkers in CSF.
Measured: 1 year
Secondary outcomes (1)
Setting up in new study/collaboration
This database would allow clinical studies and collaborations to be built easily and quickly.
For example, when setting up a clinical study with the aim of testing the discriminating potential of a biomarker between various cognitive pathologies, we will only use in this database patients for whom the diagnosis is well established. The objective will be to determine whether the biomarker is capable of discriminating between these well-defined populations.
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Apr 2021
- Study startFeb 2010
- Primary completionDec 2030 (estimated)
- Study completionDec 2030 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Alzheimer DiseaseStudies of the same condition, open and under way.
- 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
- Cohort
- Time perspective
- Other
- Enrolment
- 10,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University Hospital, Strasbourg, France
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Frédéric BLANC, MD/PhD, Principal investigator, Hôpitaux Universitaires de Strasbourg
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04844060
- Sponsor's protocol ID
- DC-2009-1002
- Acronym
- Analzheimer
- Status last verified
- Apr 2023
- First submitted
- 29 Mar 2021
- Last updated
- 27 Apr 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Apr 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Analysis of Clinical Data and Diagnosis in Any Person Requiring an Assay of Alzheimer Biomarkers in Cerebrospinal Fluid
- ClinicalTrials.gov ID
- NCT04844060
- Acronym / sponsor ID
- Analzheimer / DC-2009-1002
- Conditions
- Alzheimer Disease, Dementia With Lewy Bodies, Frontotemporal Dementia, Parkinson's Disease Dementia, Multiple System Atrophy
- Keywords
- CSF library, Database of patients with cognitive disorders
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 10,000 participants (estimated)
- Lead sponsor
- University Hospital, Strasbourg, FranceUniversity, hospital or other
- Study start
- Feb 2010 (actual)
- Primary completion
- Dec 2030 (estimated)
- Study completion
- Dec 2030 (estimated)
- First posted
- 14 Apr 2021 (actual)
- 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.
Cognitive neurodegenerative diseases are a major public health issue. At present, the diagnosis of certainty is still based on anatomopathological analyses. Even if the diagnostic tools available to clinicians have made it possible to improve probabilistic diagnosis during the patient's lifetime, there are still too many diagnostic errors and sub-diagnostic in this field. The arrival of biomarkers has made it possible to reduce these diagnostic errors, which were of the order of 25 to 30%. This high error rate is due to different parameters. These diseases are numerous and often present common symptoms due to the fact that common brain structures are affected. These diseases evolve progressively over several years and their early diagnosis, when the symptoms are discrete, makes them even more difficult to diagnose at this stage. In addition, co-morbidities are common in the elderly, further complicating the diagnosis of these diseases.
At present, the only cerebrospinal fluid (CSF) biomarkers that are routinely used for the biological diagnosis of neurodegenerative cognitive pathologies are those specific to Alzheimer's disease: Aβ42, Aβ40, Tau-total and Phospho-Tau. These biomarkers represent an almost indispensable tool in the diagnosis of dementia.
It is therefore important to determine whether Alzheimer's biomarkers can be disrupted in other neurodegenerative cognitive pathologies, but also to find biomarkers specific to these different pathologies by facilitating the implementation of clinical studies which will thus make it possible to improve their diagnosis.
Study design
- Observational model
- Cohort
- Time perspective
- Other
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Patients with cognitive impairment | – | Other: Lumbar punctionAll patients with cognitive disorders observed at the memory center of Strasbourg and in whom a lumbar puncture is performed as part of the patient's diagnosis. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- All patients with cognitive disorders observed at the memory center of Strasbourg and in whom a lumbar puncture is performed as part of the patient's diagnosis.
Key inclusion criteria (2 listed)
- Patients with lumbar puncture (LP)
- Patients with accurate clinical diagnosis
Key exclusion criteria (2 listed)
- Patients who do not have a lumbar puncture
- Patients for whom no accurate diagnostic information is available
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Lumbar punctionLumbar punction | Other | Patients with cognitive impairment |
Primary outcome
CSF collection
Time frame: 1 year
To create a database of patients with cognitive disorders in whom a lumbar puncture has been carried out in order to measure Alzheimer's biomarkers. This database would not only be biological but also clinical and diagnostic, including the results of neuropsychological tests, clinical examinations, the results of brain imaging (MRI, PET-FDG, DAT-SCAN,…) as well as the last diagnosis retained by the clinician in charge of the patient. Thus, after completing this database, the main objective is to evaluate the proportion of different diseases that have led to the decision to search for Alzheimer biomarkers in CSF.
1 secondary outcome
Setting up in new study/collaboration
Time frame: 1 year
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Apr 2023.
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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.
Frédéric BLANC, MD/PhD principal investigator
Hôpitaux Universitaires de Strasbourg
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 Alzheimer Disease and Dementia With Lewy Bodies, run by University Hospital, Strasbourg, 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 2 inclusion and 2 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: looking for participants now, as of the sponsor's last update on 27 Apr 2023. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Frédéric BLANC, MD/PhD (33388155858, frederic.blanc@unistra.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
CSF collection (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 27 Apr 2023; AzTrials last refreshed its copy on 28 Oct 2026.