Genotypic Tropism Testing In Proviral Dna To Guide CCR5 Antagonist Treatment In Subjects With Undetectable HIV-1 Viremia
Use Of Genotypic HIV-1 Tropism Testing In Proviral DNA To Guide CCR5 Antagonist Treatment In Subjects With Undetectable HIV-1 Viremia
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
The assessment of HIV-1 tropism is needed before starting treatment with a CCR5-antagonist. Several phenotypic and genotyping tropism tests have been developed in the recent years. Phenotypic assays (i.e. TrofileTM and ES-TrofileTM) have been used.in most clinical trials. Genotypic tropism testing, however, is easier, cheaper and faster than phenotypic methods, and can be performed in a local HIV laboratories.
Viral RNA amplification is difficult in subjects with HIV-1 RNA levels <500-1000 copies/mL. In these cases, the optimal source of genetic material is peripheral blood mononuclear cell (PBMC)-associated proviral DNA. Whereas genotypic tropism testing in proviral DNA is technically feasible, it has not been validated as a tool to predict sustained virological response to CCR5-antagonist therapy in subjects with undetectable viremia.
As of today, maraviroc is the only CCR5-antagonist approved for HIV treatment. It has few drug interactions and a good security profile, particularly in terms of lipid and glucose metabolism. Therefore, it might be an adequate alternative for HIV-1-infected individuals with suppressed viremia who experience antiretroviral-related toxicity or metabolic problems.
This study will evaluate 48-week virological outcomes in aviremic subjects with an R5 virus by proviral genotypic tropism testing who switch the "third drug" of their regimen to maraviroc.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
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Alicante, Spanien, 03010
- Hospital Gral. U. de Alicante
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Barcelona, Spanien, 08035
- Hospital Vall d'hebrón
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Barcelona, Spanien, 08304
- Hospital de Mataró
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Granada, Spanien, 18014
- Hospital Virgen de las Nieves
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Granada, Spanien, 28012
- Hospital U. San Cecilio
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Madrid, Spanien, 28040
- Hospital Clinico San Carlos
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Madrid, Spanien, 28007
- Hospital U. Gregorio Marañón
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Madrid, Spanien, 28034
- Hospital Ramon y Cajal
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Madrid, Spanien, 28029
- Hospital Carlos III
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Murcia, Spanien, 30003
- Hospital Reina Sofía de Murcia
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Tarragona, Spanien, 43007
- Hospital Sant Pau i Santa Tecla
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Valencia, Spanien, 46015
- Hospital Arnau de Vilanova
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Valencia, Spanien, 46009
- Hospital La Fe
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Valencia, Spanien, 46014
- Hospital Gral. U. de Valencia
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Valencia, Spanien, 46017
- Hospital U. Dr. Peset
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A Coruña
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Santiago de Compostela, A Coruña, Spanien, 15781
- Hospital Xeral de Vigo
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Alicante
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Elche, Alicante, Spanien, 03203
- Hospital de Elche
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Baleares
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Palma de Mallorca, Baleares, Spanien, 07011
- Hospital Son Espases
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Barcelona
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Badalona, Barcelona, Spanien, 08916
- H. U. Germans Trias i Pujol
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Hospitalet de Llobregat, Barcelona, Spanien, 08907
- H. de Bellvitge
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Cantabria
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Santander, Cantabria, Spanien, 39011
- Hospital U. Marques de Valdecilla
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Castelló
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Castelló De La Plana, Castelló, Spanien, 12004
- Hospital General de Castellon
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Murcia
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Cartagena, Murcia, Spanien, 30203
- Hospital Sta. Lucía/ H. Sta. Mª del Rosell
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Vizcaya
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Bilbao, Vizcaya, Spanien, 48903
- Hospital De Cruces
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- HIV-1 infected patients.
- Age 18 or more.
- Antiretroviral treatment containing 2 Nucleoside/Nucleotide Reverse Transcriptase Inhibitors (NRTIs) plus 1 Non-nucleoside reverse-transcriptase inhibitor (NNRTI) or 1 protease inhibitor (PI) or 1 integrase inhibitor (ININ)
- Patients receiving stable antiretroviral treatment for at least 6 months.
- Viral load under 50 copies/mL in the last 6 months
- Patients with CCR5 tropism based in V3 genotyping in proviral DNA using the G2P with a false positive rate of 10% interpretation method.
- A change of treatment is needed due to toxicity / tolerability problems with the 3rd drug (PI, NNRTI or ININ), according to investigator criteria.
- An antiretroviral regimen containing a CCR5-antagonist is suitable for the patient (physician criteria).
- Voluntary written informed consent.
Exclusion Criteria:
- Pregnancy or breast-feeding.
- Patient previously treated with maraviroc.
- Patients with documented resistance to maraviroc or any other drug considered for the new ARV regimen.
- Viral failure in the moment of inclusion.
- Bad adherence history or anticipated (investigator criteria).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: Change of 3rd drug to maraviroc
Change of PI, NNRTI or integrase inhibitor to CCR5 antagonist (maraviroc)
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Change of PI, NNRTI or integrase inhibitor to CCR5 antagonist (maraviroc)
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Percentage of patients with viral load under 50 copies/mL
Tidsramme: Week 48
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Week 48
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Percentage of patients without confirmed virological failure.
Tidsramme: Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
|
|
Time to loss of virological response (TLOVR) < 200 copies/mL
Tidsramme: Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
|
|
Time to loss of virological response (TLOVR) < 50 copies/mL
Tidsramme: Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
|
|
Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Tidsramme: Week 12
|
To evaluate other aspects related to maintanence of virological response
|
Week 12
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Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Tidsramme: Week 24
|
To evaluate other aspects related to maintanence of virological response
|
Week 24
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Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Tidsramme: Week 36
|
To evaluate other aspects related to maintanence of virological response
|
Week 36
|
|
Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Tidsramme: Week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Week 48
|
|
Time to treatment discontinuation, overall, and due to factors other than loss of virological response
Tidsramme: Up to week 48
|
To evaluate other aspects related to maintanence of virological response
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Up to week 48
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Association between pre-treatment level of X4 viruses detected by deep sequencing at screening and virological response to maraviroc based therapy at week 48.
Tidsramme: Week 48
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To evaluate changes in HIV tropism
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Week 48
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Level of X4 viruses by detected by population sequencing.
Tidsramme: Screening (up to 48 weeks)
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Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
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Screening (up to 48 weeks)
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Level of X4 viruses by detected by population sequencing.
Tidsramme: Week 12
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 12
|
|
Level of X4 viruses by detected by population sequencing.
Tidsramme: Week 48
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 48
|
|
Level of X4 viruses by detected by deep sequencing.
Tidsramme: Screening (up to 48 weeks)
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Screening (up to 48 weeks)
|
|
Level of X4 viruses by detected by deep sequencing.
Tidsramme: Week 12
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 12
|
|
Level of X4 viruses by detected by deep sequencing.
Tidsramme: Week 48
|
Evolution of viral tropism in PBMC-associated DNA by population and deep sequencing between screening and week 48 in subjects treated with maraviroc.
|
Week 48
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High-resolution assessment of virus diversity and X4 level using deep sequencing
Tidsramme: Week 12
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High-resolution assessment of virus diversity and X4 level using deep sequencing at week 12 and at the time of virological failure.
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Week 12
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High-resolution assessment of virus diversity and X4 level using deep sequencing
Tidsramme: In case of virological failure (week 12 up to virological failure)
|
High-resolution assessment of virus diversity and X4 level using deep sequencing at week 12 and at the time of virological failure.
|
In case of virological failure (week 12 up to virological failure)
|
|
Median change of total cholesterol.
Tidsramme: From baseline to week 48.
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From baseline to week 48.
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Median change of HDL cholesterol.
Tidsramme: From Baseline to week 48.
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
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Median change of LDL cholesterol.
Tidsramme: From Baseline to week 48.
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
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Median change of triglycerides
Tidsramme: From Baseline to week 48.
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
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Median change of AST serum levels.
Tidsramme: From Baseline to week 48.
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
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From Baseline to week 48.
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Median change of ALT serum levels.
Tidsramme: From Baseline to week 48.
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
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Median change of alkaline phosphatase serum levels.
Tidsramme: From Baseline to week 48.
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
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From Baseline to week 48.
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Median change of total bilirubin serum levels.
Tidsramme: From Baseline to week 48.
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
From Baseline to week 48.
|
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Cumulative number of adverse events
Tidsramme: Week 4
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 4
|
|
Cumulative number of adverse events
Tidsramme: Week 12
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 12
|
|
Cumulative number of adverse events
Tidsramme: Week 24
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 24
|
|
Cumulative number of adverse events
Tidsramme: Week 36
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 36
|
|
Cumulative number of adverse events
Tidsramme: Week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 48
|
|
Cumulative number of grade 3-4 adverse events
Tidsramme: Week 4
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 4
|
|
Cumulative number of grade 3-4 adverse events
Tidsramme: Week 12
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 12
|
|
Cumulative number of grade 3-4 adverse events
Tidsramme: Week 24
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 24
|
|
Cumulative number of grade 3-4 adverse events
Tidsramme: Week 36
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 36
|
|
Cumulative number of grade 3-4 adverse events
Tidsramme: Week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 48
|
|
Proportion of patients withdrawn from the study and reason for study withdrawal
Tidsramme: Up to week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Up to week 48
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
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