- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT02354209
Targeted Clinical Strategies and Low Level Viraemia (LLV) in Boosted Protease Inhibitor Therapy
Targeted Clinical Strategies and Low Abundance HIV Viraemia in Boosted-PI Therapy: an Observational Study
Studienübersicht
Status
Bedingungen
Detaillierte Beschreibung
Phase of Study: Non-Drug Study
Objectives:
Primary To investigate the causes of low level viraemia (LLV) in HIV-infected individuals with no PI resistance associated mutations (RAMs) on conventional genotyping who have a detectable plasma HIV viral load (pVL) and report >95% adherence* to their ARV regimens containing a boosted protease inhibitor.
*in case the questionnaire cannot be performed, clinical documentation of adherence will be used for interpretation of adherence level.
Secondary To observe the evolution in virologic and immunologic responses following routine clinical intervention in HIV-infected individuals with no primary protease inhibitor mutations (IAS, USA) on conventional genotyping who have a detectable plasma HIV viral load (pVL) and report >95% adherence* to antiretroviral regimens containing a boosted protease inhibitor.
- in case the questionnaire cannot be performed, clinical documentation of adherence will be used for interpretation of adherence level.
Study Design: A multi-centre, non-drug, observational cohort study.
Methodology: HIV-infected individuals attending three selected HIV clinics at the Chelsea and Westminster Hospital, St Mary's Hospital and Guy's and St Thomas' Hospital over the duration of the study will be identified at weekly viral resistance meetings and routine clinic appointments if they demonstrate the following HIV pVL criteria:
- An HIV pVL of 41-2000 copies/ml (c/ml) on two consecutive tests after being <40 c/ml on at least two occasions on a bPI-containing regimen
- An HIV pVL of 41-2000 c/ml on two consecutive tests having never achieved <40 c/ml on a bPI-containing regimen after more than six months of treatment.
Eligible patients will be provided with a patient information sheet and a written consent form. Following consent:
- Virologic and immunologic assessments will be collected from the clinical records available
- Viral resistance test (VRT) (using VircoTYPE HIV-1 Virtual PhenotypeTM-LM for conventional genotyping and Ilumina MiSeq as next generation sequencing, NGS for minority species testing) will be performed on the first detectable HIV pVL(>40 c/mL) found in clinic and at 3 to 6 and 12 months later, if HIV pVL is still >40 c/mL.
Planned Sample Size: 120 to 240 samples over the one-year study period, with each centre providing 40 to 80 samples.
Summary of Eligibility Criteria: HIV-infected individuals with no primary protease inhibitor mutations (IAS, USA) on standard VRTs who have a detectable pVL and report >95% adherence* ARV regimens containing a boosted protease inhibitor with HIV VL criteria as detailed above. Individuals who have a detectable HIV VL after stopping ARV or having an 8-item Morisky score of above 2 (or <95% reported adherence will not be eligible.
*in case the questionnaire cannot be performed, clinical documentation of adherence will be used for interpretation of adherence level.
Number of Study Centres: Three
Duration of Study: One year from study approval. Samples for resistance testing will be collected over the duration of the study.
Criteria for Evaluation:
- Emergence of new primary protease inhibitor mutations (IAS, USA) using NGS will be described.
- Comparison of respective parameters (HIV VL and CD4 count) between different clinical interventions. The latter will not be dictated by the protocol but will be conducted as routine clinical practice.
Primary Endpoint:
Development of primary protease inhibitor mutations (IAS, USA) on NGS in HIV-infected patients with primary protease inhibitor mutations (IAS, USA) on standard VRTs who demonstrate LLV on ARV regimens containing a bPI.
Secondary Endpoints:
- Proportion of patients achieving an undetectable HIV VL following an intervention during periods of LLV on ARV regimens containing a bPI
- Evolution of CD4 cell count following an intervention during periods of LLV on ARV regimens containing a bPI.
Note: This is a non-drug study and no interventions will be dictated by this protocol.
Studientyp
Einschreibung (Tatsächlich)
Kontakte und Standorte
Studienorte
-
-
-
London, Vereinigtes Königreich, W2 1NY
- St Mary's Hospital
-
London, Vereinigtes Königreich, SE1 7EH
- St Thomas Hospital
-
London, Vereinigtes Königreich, SW10 9NH
- St Stephen's Centre
-
-
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
A subject will be eligible for inclusion in the study if ALL of the following criteria apply:
- Chronic HIV-1 infection (adult male, female or transgender)
- Age >18 years
- Current HIV clinic attendee at the Chelsea and Westminster Hospital, St Mary's Hospital, and Guy's and St Thomas' Hospital [defined as at least 1 attended clinic visit since January 2010]
- Receiving a boosted protease inhibitor-containing antiretroviral regimen (bPI ARV)
- HIV plasma viral load (pVL) of 41-2000 copies/ml (c/ml) on two consecutive tests after being <40 c/ml on at least two occasions on a bPI-containing regimen OR HIV pVL of 41-2000 c/ml on two consecutive tests having never achieved <40 c/ml on a bPI containing regimen after more than six months of treatment.
Exclusion Criteria:
A subject will NOT be eligible for inclusion in this clinical trial if the following criteria apply:
- Demonstrable detectable HIV VL after stopping ARV
8-item Morisky score of 2 or more or documented poor adherence to combination ARV. (<95% adherence*)
- in case the questionnaire cannot be performed, clinical documentation of adherence will be used for interpretation of adherence level
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Beobachtungsmodelle: Kohorte
- Zeitperspektiven: Sonstiges
Kohorten und Interventionen
Gruppe / Kohorte |
---|
HIV-1 patients receiving bPI ARV
Non interventional study. Interventions will be clinically directed rather than by protocol. The following procedures will be carried out:
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
---|---|
Change in primary protease inhibitor mutations on the HIV genome as defined by IAS-USA drug resistance mutations list.
Zeitfenster: Change between baseline and 12 months after first detectble viral load
|
Change between baseline and 12 months after first detectble viral load
|
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
---|---|
Proportion of patients achieving an undetectable HIV VL following an intervention following LLV on ARV regimens containing a bPI
Zeitfenster: 12 months after first detectable VL on bPI
|
12 months after first detectable VL on bPI
|
Change in cell count following an intervention during periods of LLV on ARV regimens containing a bPI
Zeitfenster: Change in CD4 cell count from baseline to 1 year
|
Change in CD4 cell count from baseline to 1 year
|
Mitarbeiter und Ermittler
Sponsor
Ermittler
- Hauptermittler: Marta Boffito, Chelsea & Westminster Hospital
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Voraussichtlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- SSAT 057
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .
Klinische Studien zur HIV
-
University of Alabama at BirminghamMobile County Health Deparment; Alabama Department of Public HealthRekrutierungHIV | HIV-Test | HIV-Verbindung zur Pflege | HIV-BehandlungVereinigte Staaten
-
French National Agency for Research on AIDS and...Elizabeth Glaser Pediatric AIDS FoundationAbgeschlossenPartner-HIV-Test | HIV-Beratung für Paare | Paarkommunikation | HIV-InzidenzKamerun, Dominikanische Republik, Georgia, Indien
-
University of MinnesotaZurückgezogenHIV-Infektionen | HIV/Aids | HIV | AIDS | Aids/HIV-Problem | AIDS und InfektionenVereinigte Staaten
-
ANRS, Emerging Infectious DiseasesHopital Universitaire Robert-Debre; Institut de Recherche pour le Developpement und andere MitarbeiterUnbekanntHIV | HIV-nicht infizierte Kinder | Kinder, die HIV ausgesetzt sindKamerun
-
Erasmus Medical CenterNoch keine RekrutierungHIV-Infektionen | HIV | HIV-1-Infektion | HIV-I-InfektionNiederlande
-
University of Maryland, BaltimoreZurückgezogenHIV | Nierentransplantation | HIV-Reservoir | CCR5Vereinigte Staaten
-
Africa Health Research InstituteLondon School of Hygiene and Tropical Medicine; University College, London; University... und andere MitarbeiterRekrutierungHIV | HIV-Test | Verbindung zur PflegeSüdafrika
-
Hospital Clinic of BarcelonaAbgeschlossenIntegrase-Inhibitoren, HIV; HIV-PROTEASE-INHIBSpanien
-
National Taiwan UniversityRekrutierung
-
Centers for Disease Control and PreventionGilead Sciences; CDC FoundationAbgeschlossenHIV-Präexpositionsprophylaxe | HIV-ChemoprophylaxeVereinigte Staaten