Study of Recovery of Intestinal CD4+ and Th17 T Cells in HIV-infected Individuals on Short-term Antiretroviral Therapy
Recruitment status was: Active, not recruiting
HIV infection is associated with a state of chronic, generalized immune activation that has been shown in many studies to be a key predictor of progression to AIDS. The molecular, cellular, and pathophysiological mechanisms underlying the HIV-associated immune activation are complex and still poorly studied. There is, however, growing consensus that both viral and host factors contribute to this phenotype, with emphasis on the role played by the mucosal immune dysfunction (and consequent microbial translocation). Moreover if it is known that in HIV-infected individuals, a severe depletion of intestinal cluster of differentiation 4 (CD4+) T-cells, is associated with loss of epithelium integrity, microbial translocation and systemic immune activation, the kinetics of intestinal CD4+ T-cell reconstitution under combined antiretroviral therapy (cART) remains poorly understood.
This study sought to evaluate the reconstitution of intestinal CD4+ T-cells, including Th1 and Th17, in blood and colon samples collected from HIV-infected individuals before and after a short term cART.
|HIV Infection||Drug: Tenofovir-Emtricitabine plus Lopinavir/Ritonavir or Darunavir/Ritonavir|
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
|Official Title:||HIV Infection and Gut Mucosal Immune Function: Longitudinal Analyses of Intestinal CD4+ and Th17 T Cells in HIV-infected Individuals on Short-term Antiretroviral Therapy|
- Difference of number of total Th1 and Th17 CD4+ T-cells (cell/mmc and %) in colon samples between T0 (before start of cARV) and T1 (after 6 months of cARV) [ Time Frame: 6 months ]recovery of total Th1 and Th17 CD4+ T-cells (cell/mmc and %) in gut mucosa after 6 months of cARV)
- Difference of number of total Th1 and Th17 CD4+ T-cells (cell/mmc and %) in blood samples between T0 (before start of cARV) and T1 (after 6 months of cARV) [ Time Frame: 6 months ]recovery of total Th1 and Th17 CD4+ T-cells (cell/mmc and %) in peripheral blood after 6 months of cARV)
|Study Start Date:||April 2010|
|Estimated Study Completion Date:||December 2014|
|Primary Completion Date:||March 2014 (Final data collection date for primary outcome measure)|
naïve for cART that met the criteria to start treatment
patients naïve for antiretroviral treatment that met the criteria to start cART according to International Guidelines.
These patients will be studied for primary and secondary outcomes after a short term antiretroviral therapy.
Drug: Tenofovir-Emtricitabine plus Lopinavir/Ritonavir or Darunavir/Ritonavir
Conventional antiretroviral therapy started in naïve patients for antiretroviral treatment that met the criteria to start cART according to International Guidelines.
The antiretroviral treatment consisted in a tenofovir-emtricitabine NRTI backbone (TDF/FTC, 300/200 mg/ml, once a day) plus boosted protease inhibitor, lopinavir/ritonavir (LPV/r, 400/100 mg twice a day) or darunavir/ritonavir (DRV/r 800/100mg once a day).
Please refer to this study by its ClinicalTrials.gov identifier: NCT02097381
|Department of Public Health and Infectious Diseases, University of Rome "Sapienza", Italy|
|Rome, RM, Italy, 00161|
|Principal Investigator:||Vincenzo Vullo, MD||University of Roma La Sapienza|