- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT01378910
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
Přehled studie
Detailní popis
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.
Typ studie
Zápis (Aktuální)
Fáze
- Fáze 4
Kontakty a umístění
Studijní místa
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Alicante, Španělsko, 03010
- Hospital Gral. U. de Alicante
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Barcelona, Španělsko, 08035
- Hospital Vall d'Hebron
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Barcelona, Španělsko, 08304
- Hospital de Mataró
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Granada, Španělsko, 18014
- Hospital Virgen de las Nieves
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Granada, Španělsko, 28012
- Hospital U. San Cecilio
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Madrid, Španělsko, 28040
- Hospital Clinico San Carlos
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Madrid, Španělsko, 28007
- Hospital U. Gregorio Marañón
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Madrid, Španělsko, 28034
- Hospital Ramon y Cajal
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Madrid, Španělsko, 28029
- Hospital Carlos III
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Murcia, Španělsko, 30003
- Hospital Reina Sofía de Murcia
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Tarragona, Španělsko, 43007
- Hospital Sant Pau i Santa Tecla
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Valencia, Španělsko, 46015
- Hospital Arnau de Vilanova
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Valencia, Španělsko, 46009
- Hospital la Fé
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Valencia, Španělsko, 46014
- Hospital Gral. U. de Valencia
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Valencia, Španělsko, 46017
- Hospital U. Dr. Peset
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A Coruña
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Santiago de Compostela, A Coruña, Španělsko, 15781
- Hospital Xeral de Vigo
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Alicante
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Elche, Alicante, Španělsko, 03203
- Hospital de Elche
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Baleares
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Palma de Mallorca, Baleares, Španělsko, 07011
- Hospital Son Espases
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Barcelona
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Badalona, Barcelona, Španělsko, 08916
- H. U. Germans Trias i Pujol
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Hospitalet de Llobregat, Barcelona, Španělsko, 08907
- H. de Bellvitge
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Cantabria
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Santander, Cantabria, Španělsko, 39011
- Hospital U. Marques de Valdecilla
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Castelló
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Castelló De La Plana, Castelló, Španělsko, 12004
- Hospital General de Castellón
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Murcia
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Cartagena, Murcia, Španělsko, 30203
- Hospital Sta. Lucía/ H. Sta. Mª del Rosell
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Vizcaya
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Bilbao, Vizcaya, Španělsko, 48903
- Hospital de Cruces
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
Přijímá zdravé dobrovolníky
Pohlaví způsobilá ke studiu
Popis
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).
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Základní věda
- Přidělení: N/A
- Intervenční model: Přiřazení jedné skupiny
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
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Experimentální: 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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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Časové okno |
|---|---|
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Percentage of patients with viral load under 50 copies/mL
Časové okno: Week 48
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Week 48
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Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
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Percentage of patients without confirmed virological failure.
Časové okno: Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
|
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Time to loss of virological response (TLOVR) < 200 copies/mL
Časové okno: Up to week 48
|
To evaluate other aspects related to maintanence of virological response.
|
Up to week 48
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Time to loss of virological response (TLOVR) < 50 copies/mL
Časové okno: Up to week 48
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To evaluate other aspects related to maintanence of virological response.
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Up to week 48
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Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Časové okno: Week 12
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To evaluate other aspects related to maintanence of virological response
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Week 12
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Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Časové okno: Week 24
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To evaluate other aspects related to maintanence of virological response
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Week 24
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Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Časové okno: Week 36
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To evaluate other aspects related to maintanence of virological response
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Week 36
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Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Časové okno: Week 48
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To evaluate other aspects related to maintanence of virological response.
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Week 48
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Time to treatment discontinuation, overall, and due to factors other than loss of virological response
Časové okno: Up to week 48
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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.
Časové okno: 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.
Časové okno: 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.
Časové okno: 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.
Časové okno: 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.
Časové okno: 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.
Časové okno: 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.
Časové okno: 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.
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Week 48
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High-resolution assessment of virus diversity and X4 level using deep sequencing
Časové okno: 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
Časové okno: In case of virological failure (week 12 up to virological failure)
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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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In case of virological failure (week 12 up to virological failure)
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Median change of total cholesterol.
Časové okno: 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 HDL cholesterol.
Časové okno: 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 LDL cholesterol.
Časové okno: 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 triglycerides
Časové okno: 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 AST serum levels.
Časové okno: 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.
Časové okno: 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 alkaline phosphatase serum levels.
Časové okno: 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.
Časové okno: 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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Cumulative number of adverse events
Časové okno: Week 4
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To evaluate the tolerability and safety with CCR5 antagonist containing regimen
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Week 4
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Cumulative number of adverse events
Časové okno: Week 12
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 12
|
|
Cumulative number of adverse events
Časové okno: Week 24
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 24
|
|
Cumulative number of adverse events
Časové okno: Week 36
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 36
|
|
Cumulative number of adverse events
Časové okno: Week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 48
|
|
Cumulative number of grade 3-4 adverse events
Časové okno: Week 4
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 4
|
|
Cumulative number of grade 3-4 adverse events
Časové okno: Week 12
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 12
|
|
Cumulative number of grade 3-4 adverse events
Časové okno: Week 24
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 24
|
|
Cumulative number of grade 3-4 adverse events
Časové okno: Week 36
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Week 36
|
|
Cumulative number of grade 3-4 adverse events
Časové okno: 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
Časové okno: Up to week 48
|
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
|
Up to week 48
|
Spolupracovníci a vyšetřovatelé
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia
Primární dokončení (Aktuální)
Dokončení studie (Aktuální)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Odhad)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
Další identifikační čísla studie
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