- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT00435201
Characterization of Clonal B Cell Populations in HCV Infection
Studieoversigt
Status
Betingelser
Detaljeret beskrivelse
Hepatitis C virus (HCV) infects approximately 170 million people worldwide. About 10-50% of persons with HCV have MC. MC is associated with the development of autoimmune symptoms and B cell proliferative disorders. We plan to study B cells from individuals chronically infected with HCV as well as from healthy controls. We sort B cells into different types, and we analyze these types for differential levels of gene expression. We are testing the hypothesis that certain types of B cells from subjects with MC have increased expression of genes that allow for increased cell survival.
People interested in participating in this study will have a complete history and general medical examinations before beginning the study. Following the screening, you will have a procedure called leukapheresis, in which white blood cells are removed, but your own red blood cells are returned. The procedure takes approximately 3 hours and is similar to blood donation. The leukapheresis is done during a same day admission to the hospital by an outside blood collection company with trained nurses and certified equipment.
Some aspects of this study are experimental which means the fluid and cells collected will be studied and analyzed to determine more precisely how your body's immune system is responding to the virus. These tests are experimental in that they are not part of the usual routine care of patients.
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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Oxford, Det Forenede Kongerige
- Oxford University
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New York
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New York, New York, Forenede Stater, 10065
- Rockefeller University Hospital
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- At least 18 years of age.
- Ability to give informed consent.
- WBC greater than 3,000/mm3.
- Platelets greater than 80,000/mm3.
- Hb at least 9.5 g/dl.
- INR less than 1.5.
- Biologic therapy: Greater than 6 months post-Rituximab therapy.
- Greater than 6 months post IFN- alpha and Ribavirin therapy.
Exclusion Criteria:
- Decompensated cirrhosis.
- Serious uncontrolled medical illness.
- Receipt of immune modulators or suppressors within 30 days prior to study entry, including, but not limited to, interferons and thalidomide.
- Psychiatric illness or social condition that, in the opinion of the investigator, would interfere with adherence to study requirements.
- Alcohol or drug use or dependence that, in the opinion of the investigator,would interfere with adherence to study requirements.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Lynn Dustin, PhD, Rockefeller University
Publikationer og nyttige links
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- ECH-0596
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