- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT02028637
Expression of Toll-Like Receptors 2 and 4 in Asthmatic Patients.
Introduction: Recently it has involved the role of TLR (toll-like receptors) in the pathogenesis of asthma. TLRs are a family of proteins responsible for the recognition of Pathogen-Associated Molecular Patters (PAMPs). The possible role that TLRs play in IgE-dependent asthma (not eosinophilic) and its recognition as a new endotype asthma, could open new therapeutic expectations.
Objective: To analyze the expression of TLR 2 and 4 in monocytes/ macrophages and neutrophils in peripheral blood and induced sputum from asthmatic patients
Studieoversikt
Detaljert beskrivelse
Studietype
Registrering (Faktiske)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
-
-
-
Barcelona, Spania, 08025
- Hospital de la Santa Creu i Sant Pau
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Adults with persistent asthma (defined as per the Global INitiative for Asthma Management (GINA) criteria)
Exclusion Criteria:
- If they had a respiratory tract infection or asthma exacerbation within 30 days prior to inclusion
- If they were receiving oral steroids or immunosuppressive treatments.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Grunnvitenskap
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
---|---|
Eksperimentell: toll like receptor (TLRs)
TLRs are a family of proteins responsible for the recognition of Pathogen-Associated Molecular Patters
|
Recently it has involved the role of TLR (toll-like receptors) in the pathogenesis of asthma.The possible role that TLRs play in the asthma and its recognition as a new endotype asthma, could open new therapeutic expectations.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
The percentage of neutrophils expressing TLR4 in induced sputum decreases in asthma not eosinophilic
Tidsramme: 2 years
|
The percentage of neutrophils expressing TLR4 in induced sputum decreases in asthma not eosinophilic (IgEnodep).This could suggest that in this type of asthma the defense mechanism of neutrophils could be altered by decreasing expression of these receptors on their cell surface.
This mechanism would still be defined.
Probably the respiratory infections play an important role.
|
2 years
|
Samarbeidspartnere og etterforskere
Etterforskere
- Hovedetterforsker: Astrid Crespo, Department of Respiratory Medicine, Hospital de la Santa Creu i Sant Pau. Institut d'Investigació Biomédica Sant Pau (IIB Sant Pau). Universitat Autònoma de Barcelona, Department of Medicine.
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Anderson GP. Endotyping asthma: new insights into key pathogenic mechanisms in a complex, heterogeneous disease. Lancet. 2008 Sep 20;372(9643):1107-19. doi: 10.1016/S0140-6736(08)61452-X.
- Vidal S, Bellido-Casado J, Granel C, Crespo A, Plaza V, Juarez C. Flow cytometry analysis of leukocytes in induced sputum from asthmatic patients. Immunobiology. 2012 Jul;217(7):692-7. doi: 10.1016/j.imbio.2011.11.008. Epub 2011 Dec 2.
- The ENFUMOSA cross-sectional European multicentre study of the clinical phenotype of chronic severe asthma. European Network for Understanding Mechanisms of Severe Asthma. Eur Respir J. 2003 Sep;22(3):470-7. doi: 10.1183/09031936.03.00261903.
- Weiss ST. Eat dirt--the hygiene hypothesis and allergic diseases. N Engl J Med. 2002 Sep 19;347(12):930-1. doi: 10.1056/NEJMe020092. No abstract available.
- Gon Y. Toll-like receptors and airway inflammation. Allergol Int. 2008 Mar;57(1):33-7. doi: 10.2332/allergolint.R-07-157. Epub 2008 Mar 1.
- Simpson JL, Grissell TV, Douwes J, Scott RJ, Boyle MJ, Gibson PG. Innate immune activation in neutrophilic asthma and bronchiectasis. Thorax. 2007 Mar;62(3):211-8. doi: 10.1136/thx.2006.061358. Epub 2006 Jul 14.
- Crespo-Lessmann A, Juarez-Rubio C, Plaza-Moral V. [Role of toll-like receptors in respiratory diseases]. Arch Bronconeumol. 2010 Mar;46(3):135-42. doi: 10.1016/j.arbres.2009.07.011. Epub 2009 Sep 17.
Hjelpsomme linker
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 43/2009
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .
Kliniske studier på TLRs
-
Asociacion para el Estudio de las Enfermedades...Fundacion para la Investigacion Biomedica del Hospital Universitario...FullførtCytokinfrigjøringssyndrom | Sykdom, viral | TLR-erSpania