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1.
J Antimicrob Chemother ; 67(8): 2020-8, 2012 Aug.
Article in English | MEDLINE | ID: mdl-22532465

ABSTRACT

OBJECTIVES: The efficacy and hepatic safety of the non-nucleoside reverse transcriptase inhibitors rilpivirine (TMC278) and efavirenz were compared in treatment-naive, HIV-infected adults with concurrent hepatitis B virus (HBV) and/or hepatitis C virus (HCV) infection in the pooled week 48 analysis of the Phase III, double-blind, randomized ECHO (NCT00540449) and THRIVE (NCT00543725) trials. METHODS: Patients received 25 mg of rilpivirine once daily or 600 mg of efavirenz once daily, plus two nucleoside/nucleotide reverse transcriptase inhibitors. At screening, patients had alanine aminotransferase/aspartate aminotransferase levels ≤5× the upper limit of normal. HBV and HCV status was determined at baseline by HBV surface antigen, HCV antibody and HCV RNA testing. RESULTS: HBV/HCV coinfection status was known for 670 patients in the rilpivirine group and 665 in the efavirenz group. At baseline, 49 rilpivirine and 63 efavirenz patients [112/1335 (8.4%)] were coinfected with either HBV [55/1357 (4.1%)] or HCV [57/1333 (4.3%)]. The safety analysis included all available data, including beyond week 48. Eight patients seroconverted during the study (rilpivirine: five; efavirenz: three). A higher proportion of patients achieved viral load <50 copies/mL (intent to treat, time to loss of virological response) in the subgroup without HBV/HCV coinfection (rilpivirine: 85.0%; efavirenz: 82.6%) than in the coinfected subgroup (rilpivirine: 73.5%; efavirenz: 79.4%) (rilpivirine, P = 0.04 and efavirenz, P = 0.49, Fisher's exact test). The incidence of hepatic adverse events (AEs) was low in both groups in the overall population (rilpivirine: 5.5% versus efavirenz: 6.6%) and was higher in HBV/HCV-coinfected patients than in those not coinfected (26.7% versus 4.1%, respectively). CONCLUSIONS: Hepatic AEs were more common and response rates lower in HBV/HCV-coinfected patients treated with rilpivirine or efavirenz than in those who were not coinfected.


Subject(s)
Antiviral Agents/administration & dosage , HIV Infections/complications , Hepatitis B/drug therapy , Hepatitis C/drug therapy , Nitriles/administration & dosage , Pyrimidines/administration & dosage , Adolescent , Adult , Aged , Alanine Transaminase/blood , Alkynes , Animals , Antiviral Agents/adverse effects , Aspartate Aminotransferases/blood , Benzoxazines/administration & dosage , Benzoxazines/adverse effects , Coinfection/drug therapy , Coinfection/virology , Cyclopropanes , Double-Blind Method , Drug-Related Side Effects and Adverse Reactions/epidemiology , Female , HIV Infections/virology , HIV-1/isolation & purification , Hepatitis B Surface Antigens/blood , Hepatitis C Antibodies/blood , Humans , Liver/drug effects , Liver/physiology , Liver Function Tests , Male , Middle Aged , Nitriles/adverse effects , Placebos/administration & dosage , Pyrimidines/adverse effects , Rilpivirine , Treatment Outcome , Young Adult
2.
Can J Infect Dis Med Microbiol ; 23(4): 209-15, 2012.
Article in English | MEDLINE | ID: mdl-24294277

ABSTRACT

Amid numerous complications that plague the health and quality of life of people living with HIV, neurocognitive and psychiatric illnesses pose unique challenges. While there remains uncertainty with respect to the pathophysiology surrounding these disorders, their adverse implications are increasingly recognized. Left undetected, they have the potential to significantly impact patient well being, adherence to antiretroviral treatment and overall health outcomes. As such, early identification of HIV-associated neurocognitive disorders (HAND) and psychiatric illnesses will be paramount in the proactive management of affected patients. The present review focuses on strategies to ensure optimal screening and detection of HAND, depression and substance abuse in routine practice. For each topic, currently available screening methods are discussed. These include identification of risk factors, recognition of relevant symptomatology and an update on validated screening tools that can be efficiently implemented in the clinical setting. Specifically addressed in the present review are the International HIV Dementia Scale, a novel screening equation and algorithm for HAND, as well as brief, validated, verbal questionnaires for detection of depression and substance abuse. Adequate understanding and usage of these screening mechanisms can ensure effective use of resources by distinguishing patients who require referral for more extensive diagnostic procedures from those who likely do not.


Parmi les multiples complications qui compromettent la santé et la qualité de vie des personnes qui vivent avec le VIH, les maladies neurocognitives et psychiatriques comportent des défis uniques. Il reste de l'incertitude quant à la physiopathologie de ces troubles, mais leurs conséquences négatives sont de plus en plus établies. Non décelées, elles peuvent nuire considérablement au bien-être du patient, à sa compliance à l'antivirothérapie et à son issue de santé globale. C'est pourquoi il est capital de dépister rapidement les troubles neurocognitifs associés au VIH (TNAV) et les maladies psychiatriques dans la prise en charge proactive des patients atteints. La présente analyse porte sur des stratégies pour garantir le dépistage et la détection optimales des TNAV, de la dépression et de la consommation abusive d'alcool et de drogues dans la pratique habituelle. Pour chaque sujet, les méthodes de dépistage existantes sont exposées,soitladéterminationdesfacteursderisqueetdelasymptomatologie pertinente ainsi qu'une mise à jour des outils de dépistage validés qui peuvent être mis en œuvre avec efficacité en milieu clinique. L'échelle de démence du VIH, un nouvel outil et algorithme de dépistage des TNAV et de brefs questionnaires verbaux validés pour déceler la dépression et la consommation excessive d'alcool et de drogues. Si on comprend et qu'on utilise bien ces mécanismes de dépistage, on peut s'assurer d'une utilisation efficace des ressources en séparant les patients qui ont besoin d'être aiguillés vers des interventions diagnostiques plus poussées de ceux qui n'en ont probablement pas besoin.

3.
PLoS One ; 6(8): e23726, 2011.
Article in English | MEDLINE | ID: mdl-21886816

ABSTRACT

OBJECTIVES: To compare the efficacy and safety of an individualized treatment-simplification strategy consisting of switching from a highly-active anti-retroviral treatment (HAART) with a ritonavir-boosted protease inhibitor (PI/r) and 2 nucleoside reverse-transcriptase inhibitors (NRTIs) to lopinavir/ritonavir (LPV/r) monotherapy, with intensification by 2 NRTIs if necessary, to that of continuing their HAART. METHODS: This is a one-year, randomized, open-label, multi-center study in virologically-suppressed HIV-1-infected adults on their first PI/r-containing treatment, randomized to either LPV/r-monotherapy or continue their current treatment. Treatment efficacy was determined by plasma HIV-1 RNA viral load (VL), time-to-virologic rebound, patient-reported outcomes (PROs) and CD4+T-cell-count changes. Safety was assessed with the incidence of treatment-emergent adverse events (AE). RESULTS: Forty-one patients were randomized to LPV/r and 39 to continue their HAART. No statistically-significant differences between the two study groups in demographics and baseline characteristics were observed. At day-360, 71(39:LPV/r;32:HAART) patients completed treatment, while 9(2:LPV/r;7:HAART) discontinued. In a Last Observation Carried Forward Intent-to-Treat analysis, 40(98%) patients on LPV/r and 37(95%) on HAART had VL<200 copies/mL (P = 0.61). Time-to-virologic rebound, changes in PROs, CD4+ T-cell-count and VL from baseline, also exhibited no statistically-significant between-group differences. Most frequent AEs were diarrhea (19%), headache (18%) and influenza (16%). Four (10%) patients on LPV/r were intensified with 2 NRTIs, all regaining virologic control. Eight serious AEs were reported by 5(2:LPV/r;3:HAART) patients. CONCLUSION: At day-360, virologic efficacy and safety of LPV/r appears comparable to that of a PI+2NRTIs HAART. These results suggest that our individualized, simplified maintenance strategy with LPV/r-monotherapy and protocol-mandated NRTI re-introduction upon viral rebound, in virologically-suppressed patients merits further prospective long-term evaluation. TRIAL REGISTRATION: ClinicalTrials.gov NCT00159224.


Subject(s)
Anti-HIV Agents/therapeutic use , HIV Infections/drug therapy , Lopinavir/therapeutic use , Precision Medicine/methods , Adult , Aged , Anti-HIV Agents/adverse effects , Antiretroviral Therapy, Highly Active/methods , Drug-Related Side Effects and Adverse Reactions , Female , HIV Protease Inhibitors , Humans , Male , Middle Aged , Pilot Projects , Reverse Transcriptase Inhibitors , Ritonavir/therapeutic use , Treatment Outcome , Young Adult
4.
Can J Infect Dis Med Microbiol ; 18(5): 293-303, 2007 Sep.
Article in English | MEDLINE | ID: mdl-18923731

ABSTRACT

Concomitant HIV and hepatitis C virus (HCV) is a common yet complex coinfection. The present document is a practical guide for treating HCV infection in people coinfected with HIV. Effective antiretroviral therapies have prolonged survival rates for HIV-infected people over the past decade, which have made latent complications of HCV major causes of morbidity and mortality in these patients. Advances in the treatment of HCV (eg, combined pegylated interferon and ribavirin) offer the possibility of eradicating HCV infection in coinfected persons. The treatment of HCV must be considered in all cases. Intensive management of the adverse effects of HCV treatment is one of the factors for the success of these therapies. HCV eradication is predicted to decrease the mortality associated with coinfection and reduce the toxicity of HIV treatment.

5.
Can J Infect Dis Med Microbiol ; 16(4): 233-43, 2005 Jul.
Article in English | MEDLINE | ID: mdl-18159551

ABSTRACT

Approximately two years after the introduction of highly active antiretroviral therapy for the treatment of HIV infection, body shape changes and metabolic abnormalities were increasingly observed. Initially, these were ascribed to protease inhibitors, but it is now clear that nucleoside reverse transcriptase inhibitors also contribute to lipodystrophy syndrome. The syndrome groups together clinical conditions describing changes in body fat distribution that include lipoatrophy, lipoaccumulation or both. However, there does not appear to be a direct link between lipoatrophy and lipoaccumulation that would support a single mechanism for the redistribution of body fat. Currently, there is no clear definition of lipodystrophy, which explains the difficulty in determining its prevalence and etiology. There are no current guidelines for the treatment of fat distribution abnormalities that occur in the absence of other metabolic complications. The present article reviews the current state of knowledge of the definition, symptoms, risk factors, pathogenesis, diagnosis and treatment of the morphological changes associated with lipodystrophy syndrome.

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