- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica 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.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
-
-
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Lusaka, Zambia
- Centre for Infectious Disease Research in Zambia
-
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Ricerca sui servizi sanitari
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
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Nessun intervento: 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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Sperimentale: 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.
|
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.
Altri nomi:
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
|---|---|
|
Sopravvivenza del paziente
Lasso di tempo: 36 mesi
|
36 mesi
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Misure di risultato secondarie
Misura del risultato |
Lasso di tempo |
|---|---|
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To assess HIV clinical disease progression (weight, CD4 cell response, incident opportunistic infections)
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 36 months
|
36 months
|
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To characterize the timing and sequence of HIV drug resistance development among patients in each study arm
Lasso di tempo: 36 months
|
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
Lasso di tempo: 36 months
|
36 months
|
Collaboratori e investigatori
Collaboratori
Investigatori
- Investigatore principale: Michael S. Saag, M.D., University of Alabama at Birmingham
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Infezioni da virus a RNA
- Malattie virali
- Infezioni
- Infezioni a trasmissione ematica
- Malattie trasmissibili
- Malattie sessualmente trasmissibili, virali
- Malattie trasmesse sessualmente
- Infezioni da lentivirus
- Infezioni da retroviridae
- Sindromi da deficit immunologico
- Malattie del sistema immunitario
- Infezioni da HIV
Altri numeri di identificazione dello studio
- VLS
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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