We updated the design of this site on September 25th. Learn more.
Show more
ClinicalTrials.gov
ClinicalTrials.gov Menu

Pilot Study to Assess Gut Mucosal B Cells in Individuals With HCV and HIV

This study has been terminated.
(Investigator left Rockefeller University)
Sponsor:
ClinicalTrials.gov Identifier:
NCT01040039
First Posted: December 25, 2009
Last Update Posted: May 17, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Rockefeller University
  Purpose
This pilot study aims to study gut B cells in HCV+HIV+, HCV+HIV-, HCV-HIV+, and HCV-HIV- volunteers. Volunteers will undergo a screening blood draw and flexible sigmoidoscopy with biopsy.

Condition
HIV Infections Hepatitis C Virus

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Pilot Study to Assess Gut Mucosal B Cells in Individuals Co-Infected With HCV and HIV

Resource links provided by NLM:


Further study details as provided by Rockefeller University:

Primary Outcome Measures:
  • Numbers of HCV-specific gut mucosal B cells in HCV+HIV+, compared to HCV+HIV- subjects [ Time Frame: one year ]

Secondary Outcome Measures:
  • Numbers of HCV-specific gut mucosal B cells in HCV-HIV+ and HCV-HIV- subjects [ Time Frame: 1 year ]
  • Distribution of gut mucosal B cell Ig gene segment usage in HCV+HIV+, compared to HCV+HIV- subjects [ Time Frame: 1 year ]

Biospecimen Retention:   Samples With DNA
whole blood, mucosal samples

Estimated Enrollment: 20
Study Start Date: November 2009
Study Completion Date: September 2011
Primary Completion Date: September 2011 (Final data collection date for primary outcome measure)
Groups/Cohorts
HCV+HIV+
HCV+HIV-

Detailed Description:
Hepatitis C virus (HCV) infects approximately 170 million people worldwide and is the leading indication of liver transplantation in the United States. HCV is primarily a blood-borne infection, and heterosexual transmission is rare. However, acute HCV infection is increasingly being reported among HIV-positive men who have sex with men (MSM) with no risk factors for parenteral HCV transmission, suggestive of a possible mucosal route of infection in these individuals. While it is possible that HCV may be transmitted into the bloodstream via mucosal tears induced by sexual activity, is also possible that a mucosal immune defect predisposes HIV+ persons to mucosal HCV transmission. Our pilot study aims to study gut B cells in HCV+HIV+, HCV+HIV-, HCV-HIV+, and HCV-HIV- volunteers. Volunteers will undergo a screening blood draw and flexible sigmoidoscopy with biopsy. We will isolate peripheral and mucosal mononuclear cells and we will perform HCV-specific ELISPOT and single B cell immunoglobulin (Ig) RT-PCR to assess volunteers' gut B cell repertoire. If successful, we would like to expand the study so as to better assess Ig repertoire differences among HCV+HIV+ and HCV+HIV- individuals.
  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Healthy volunteers
Criteria

Inclusion Criteria:

  1. Between 18 and 75 years of age.
  2. Ability to give informed consent.
  3. Platelets greater than 70,000/mm3.
  4. Hb at least 9.5 g/dl.
  5. INR < 1.5.

Exclusion Criteria:

  1. Decompensated cirrhosis.
  2. Serious uncontrolled medical illness.
  3. Ingestion of Aspirin within 72 hours of sigmoidoscopy
  4. Ingestion of non aspirin NSAIDS within 8 hours of sigmoidoscopy
  5. Receipt of immune modulators or suppressors within 30 days prior to study entry, including, but not limited to, interferons and thalidomide.
  6. Psychiatric illness or social condition that, in the opinion of the investigator, would interfere with adherence to study requirements.
  7. Alcohol or drug use or dependence that, in the opinion of the investigator, would interfere with adherence to study requirements.
  8. Medical illness requiring prescribed Aspirin or NSAIDs.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01040039


Locations
United States, New York
Rockefeller University
New York, New York, United States, 10065
Sponsors and Collaborators
Rockefeller University
Investigators
Principal Investigator: Edgar Charles, MD Rockefeller University
  More Information

Responsible Party: Rockefeller University
ClinicalTrials.gov Identifier: NCT01040039     History of Changes
Other Study ID Numbers: ECH-0675
First Submitted: November 19, 2009
First Posted: December 25, 2009
Last Update Posted: May 17, 2013
Last Verified: May 2013

Keywords provided by Rockefeller University:
HCV
HIV

Additional relevant MeSH terms:
Hepatitis C
HIV Infections
Hepatitis, Viral, Human
Virus Diseases
Flaviviridae Infections
RNA Virus Infections
Hepatitis
Liver Diseases
Digestive System Diseases
Lentivirus Infections
Retroviridae Infections
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases