- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT00929604
HIV Viral Load Monitoring in Resource-Poor Settings
Effectiveness of HIV Viral Load Monitoring of Patient Outcome in Resource-Poor Settings
No randomized clinical trial to date has demonstrated a survival benefit of using regular HIV-1 ribonucleic acid (RNA) viral load (VL) testing to monitor patients' responses to antiretroviral therapy (ART) for HIV infection. The measurement of VL is recommended to monitor the response to ART in developed countries. In resource-constrained settings, the World Health Organization (WHO) does not recommend routine VL testing, in part due to the cost and complex infrastructure needed for reliable results. In these settings, WHO has proposed the use of clinical and CD4+ lymphocyte-based criteria to guide treatment decisions. However, multiple studies have demonstrated the poor performance of these criteria in sub-Saharan Africa and the frequent discordance between immunologic and virologic responses to ART.
The use of routine viral load monitoring should be evaluated in resource-constrained settings. The investigators hypothesize that routine viral load testing of patients on ART will improve patient survival, decrease disease progression and development of drug resistance, and will be feasible and cost-effective for resource-constrained settings.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Lusaka, Zambie
- Centre for Infectious Disease Research in Zambia
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Documented HIV-1 infection (according to local standard rapid testing algorithms)
- Age 18 years or greater
- Able and willing to provide informed consent to participate
Eligible for antiretroviral therapy per Zambian national guidelines, which are any of the following:
- CD4+ cell count less than 200 cells/mm3;
- WHO Stage IV disease; or
- WHO Stage III disease and CD4+ cell count less than 350 cells/mm3
- Residence in the geographical catchment area of the VLS clinic and intent to remain there for the duration of the study
- Willingness to adhere to the study visit schedule and to be followed-up at home in the event of a missed study visit
- Initiating ART on the day of VLS enrollment, informed consent, and baseline blood collection
Exclusion Criteria:
- Receipt of more than 7 days (cumulative) of prior antiretroviral therapy at any time prior to study entry, with the exception of zidovudine and/or single dose nevirapine for prevention of mother-to-child transmission;
- Any exposure to antiretroviral therapy in the past one month
- A condition that, in the opinion of the investigators, would interfere with adherence to study requirements (e.g., mental illness or active drug or alcohol use or dependence)
- Serious illness requiring referral to hospital at the time of ART initiation
- For patients seeking care at sites randomized to the standard of care arm: participation in another research protocol that offers routine viral load testing
- Unwillingness to consent to all aspects of study protocol including blood specimen storage
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Recherche sur les services de santé
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Aucune intervention: Standard of care
Standard of care arm: utilizes the current standard of care per Zambian national guidelines to determine treatment failure and eligibility for second-line ART.
HIV-1 viral load measurement is performed if the criteria for either immunologic (i.e., CD4+ lymphocyte count-based) or clinical treatment failure are fulfilled.
If both immunologic and clinical treatment failure criteria are fulfilled, the ART regimen is changed to second-line without VL testing.
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Expérimental: Routine HIV-1 viral load testing
Routine viral load testing arm: Routine HIV viral load testing at ART initiation (baseline) and at 3, 6, 12, 18, 24, 30 and 36 months thereafter.
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Plasma HIV-1 RNA viral load testing performed at ART initiation (baseline) and at 3, 6, 12, 18, 24, 30, and 36 months thereafter.
Routine viral load results are provided to clinicians for the management of the participant's HIV treatment.
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
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Survie des patients
Délai: 36 mois
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36 mois
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Mesures de résultats secondaires
Mesure des résultats |
Délai |
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To assess HIV clinical disease progression (weight, CD4 cell response, incident opportunistic infections)
Délai: 36 months
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36 months
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To assess the impact of more rapid ART regimen switching on available second and third-line treatment options
Délai: 36 months
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36 months
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To monitor the effectiveness of newer antiretroviral medications introduced in Zambia (principally tenofovir)
Délai: 36 months
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36 months
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To characterize the timing and sequence of HIV drug resistance development among patients in each study arm
Délai: 36 months
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36 months
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To assess the feasibility, acceptability, and cost effectiveness of the two management strategies in a resource-constrained sub-Saharan African setting
Délai: 36 months
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36 months
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Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Michael S. Saag, M.D., University of Alabama at Birmingham
Publications et liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Infections par virus à ARN
- Maladies virales
- Infections
- Infections transmissibles par le sang
- Maladies transmissibles
- Maladies sexuellement transmissibles, virales
- Maladies sexuellement transmissibles
- Infections à lentivirus
- Infections à rétroviridae
- Syndromes d'immunodéficience
- Maladies du système immunitaire
- Infections à VIH
Autres numéros d'identification d'étude
- VLS
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .
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