TWEAK, a New Biomarker for Predicting Inflammatory Relapses in Multiple Sclerosis (TWEAK)
TNF-relateret svag inducer af apoptose (TWEAK), en ny biomarkør, der forudsiger inflammatorisk fremstød i multipel sklerose
A significant variation in the serum concentration of the circulating cytokine TWEAK is associated with the onset of an inflammatory attack of MS. Study the concentration variations of the serum soluble form of cytokine TWEAK during the first year of MS and to analyze their correlation with the occurrence of an inflammatory disease outbreak.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Multiple sclerosis (MS) is the most common chronic autoimmune demyelinating and neurodegenerative disease of the central nervous system (CNS) of disabling neurological diseases in young adults in France. Patients with MS can present a wide range of symptoms spread over time and space such as motor, sensory, visual or vesico-sphincter deficits. One of the current challenges in treating patients with symptoms suggestive of MS is to assess the risk of an inflammatory flare in order to avoid or limit the installation of an irreversible neurological handicap. At present, the inflammatory activity of the disease is evaluable only by cerebral imaging (MRI). However, these examinations can not be carried out as often as necessary because of their accessibility, cost, duration and the potential deleterious effects of gadolinium accumulation. This is why a blood biomarker able to report early on the inflammatory activity of the disease would be of great help during the monitoring and treatment of patients. TWEAK (TNF-related weak inducer of apoptosis or TNFSF12) is a pro-inflammatory cytokine member of the TNF family. This cytokine is overexpressed in tissues with chronic inflammatory diseases such as MS. It is produced by monocytes / macrophages and microglial cells and can exist in soluble or membrane form the investigators of the clinical department were the first to describe the pro-inflammatory role of TWEAK in MS. Indeed, the investigators have demonstrated in an animal model of MS that the inhibition of TWEAK makes it possible to reduce the severity of the disease. Their recent work (manuscript submitted for publication) has also shown results from a series of 28 patients with MS suggesting that the serum TWEAK assay may be an early marker of thrust occurrence. The investigators propose to study the concentration variations of the serum soluble form of cytokine TWEAK during the first year of MS and to analyze their correlation with the occurrence of an inflammatory disease outbreak. The investigators will perform a prospective study in which 50 patients with MS in the isolated clinical syndrome stage will be included over a 12-month period. Mental Cerebral MRIs will be performed for each patient at baseline (T0), month 6, and month 12. Serum dosages of TWEAK will be performed each month for each patient for one year. Patients will also be treated with soluble TNF, the leader in the TNF family of ligands, anti-TWEAK antibodies (which may interfere with the activity and dosage of TWEAK) as well as C-reactive Protein C ( search for intercurrent infectious episode). These dosages will be correlated with the clinical evolution (appearance or not of an inflammatory flare) as well as the data of the imagery (number of lesions raised or not by the gadolinium).
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Sophie DESPLAT-JEGO
- Telefonnummer: + 33 4 91 38 39 07
- E-mail: sophie.jego-desplat@ap-hm.fr
Studiesteder
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Marseille, Frankrig, 13354
- Rekruttering
- Assistance Publique Hopitaux de Marseille
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Kontakt:
- Sophie DESPLAT-JEGO, IP
- Telefonnummer: +33 04 91 38 39 07
- E-mail: promotion.interne@ap-hm.fr
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- a first episode of inflammation and demyelination of the central nervous system affecting the optic nerve, the spinal cord, one cerebral hemisphere, or the brainstem; or confirmed multiple sclerosis
- no differential diagnosis at enrollment based on clinical examination and laboratory tests
- compliance with the revised 2017 Mac Donald diagnostic criteria
Exclusion Criteria:
- age <18 years old
- person in an emergency situation
- adult who is subject to a legal protection measure (an adult under guardianship, conservatorship, or judicial protection), or who is unable to give consent
- not Enrolled in a Social Security Program
- pregnant or breastfeeding woman
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Andet: serum concentration changes in cytokine TWEAK
We will perform a prospective study in which 50 patients with multiple sclerosis in the isolated clinical syndrome stage will be included over a 12-month period. Mental Cerebral MRIs will be performed for each patient at baseline (T0), month 6, and month 12. Serum dosages of TWEAK will be performed each month for each patient for one year. Patients will also be treated with soluble TNF, the leader in the TNF family of ligands, anti-TWEAK antibodies (which may interfere with the activity and dosage of TWEAK) as well as C-reactive Protein C ( search for intercurrent infectious episode). These dosages will be correlated with the clinical evolution (appearance or not of an inflammatory flare) as well as the data of the imagery (number of lesions raised or not by the gadolinium). |
Blood samples (20 ml of blood on dry tube) by venipuncture at the bend of the elbow will be made at T0, then monthly for a period of 1 year . The sera will be isolated by centrifugation and then frozen at -80 degrees Assays of the soluble form of TWEAK and TNF will be performed by ELISA blot technique developed by the team. |
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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The serum concentration of soluble TWEAK
Tidsramme: 1 year
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We will then compare the soluble TWEAK concentrations observed in patients with anti-TWEAK antibodies and in patients without anti-TWEAK antibodies. We will study the correlation between the concentrations of soluble TWEAK and those of soluble TNF. |
1 year
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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The titers of anti-TWEAK antibodies
Tidsramme: 1 year
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Measured via blood samples taken at baseline and then 3 to 6 times thereafter, with at least 1 month between each sample |
1 year
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Functional properties of anti-TWEAK antibodies
Tidsramme: 1 year
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Positive or negative test Measured via blood samples taken at baseline and then 3 to 6 times thereafter, with at least 1 month between each sample |
1 year
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Soluble TWEAK concentrations
Tidsramme: 1 year
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Measured via blood samples taken at baseline and then 3 to 6 times thereafter, with at least 1 month between each sample |
1 year
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Serum concentrations of soluble TNF
Tidsramme: 1 year
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Measured via blood samples taken at baseline and then 3 to 6 times thereafter, with at least 1 month between each sample |
1 year
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Studieleder: Jean-Olivier ARNAUD, Assistance Publique des Hôpitaux de Marseille
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- RCAPHM19_0158
- 2020-A00770-39 (Anden identifikator: IDRCB)
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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