- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04014985
Patients With RETT Syndrome (RETT)
Study of Biological Parameters in 100 Girls With RETT Syndrome
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The MECP2 (Methyl-CpG binding protein) gene, located on the X X28 chromosome, encodes a heterochromatin nuclear protein. Mecp2 is preferentially found in neurons at a postmitotic stage where it promotes brain development. Its ability to fix methylated DNA and contribute to the formation of a transcriptional repression complex attributes this protein to a crucial role in the control of gene expression. However, until today, its exact role is not known. In humans, mutations in the MECP2 gene are at the origin of neurological diseases, the main one being Rett's syndrome (RTT-MIM # 312750) where a mutation of MECP2 is found in 95% of cases. This dominant pathology linked to the X chromosome has a prevalence of 1/10000 to 1/15000 births and affects mostly girls. The course of the pathology is characterized by a cessation of development between 6 and 18 months after birth. Patients present a set of characteristic signs including regression of acquired abilities, manual stereotyping, loss of language, behavioral disorders and severe intellectual disability. In their attempt to better understand the pathology, many laboratories are currently trying to identify abnormal biological parameters in patients that are easy to identify in a non-invasive or minimally invasive way in order to indirectly evaluate the progression of the pathology and to identify biochemical disorders amenable to direct pharmacological intervention.
In autumn 2015, several factors were identified as deregulated in model mice or RTT patients (Rett syndrome). They could be related to the severity of the disease and indicators of its progression. Among these we can mention:
- major structural damage to red blood cells;
- Inflammation demonstrated and challenged ;
- high oxidative stress markers; lipid deregulation and in particular cholesterol abnormalities;
- a deficiency of the signaling pathway of insulin and IGF-1.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: DRS AP-HM
- Email: drci@ap-hm.fr
Study Locations
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-
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Marseille, France, 13354
- Assistance Publique Hopitaux de Marseille
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Contact:
- Mathieu Milh
- Phone Number: 0491386807
- Email: mathieu.milh@ap-hm.fr
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- People with Rett syndrome related to MECP2 gene mutation
- Aged under 18 years old.
- Regularly followed as part of their illness by Prof. Bahi-Buisson in Necker or Pr Milh in Marseille.
- Whose state of health justifies a blood test (dosage of one or more anti-epileptics, recommended annual phosphocalcic balance, pre-therapeutic assessment before introduction of a new molecule ...)
- Whose at least one parent (or legal representative) has signed the consent
- Patient fasting for 6 hours at the time of sampling.
Exclusion Criteria:
- Contraindication to a balance sheet
- Absence of consent of the legal representatives
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Girls with RETT syndrome
100 girls over 18 years old with RETT syndrome
|
To study the morphology of red blood cells, the markers of oxidative stress and the signaling pathway of IFGF1.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Comparison of red blood cell morphology
Time Frame: 1 day
|
Identification of abnormal red blood cells
|
1 day
|
Comparison of oxydative stress markers
Time Frame: 1 day
|
Identification of abnormally high cytokine levels
|
1 day
|
Comparison of cholesterol levels
Time Frame: 1 day
|
Identification of hight cholesterol levels
|
1 day
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2018-30
- 2018-A01066-49 (Registry Identifier: ANSM)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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