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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

CCR5 antagonists might be an adequate alternative for HIV-1-infected individuals with suppressed viremia who experience antiretroviral-related toxicity. The assessment of HIV-1 tropism in proviral DNA could be helpful to inform in which of these subjects CCR5 antagonists could be efficacious.

Tutkimuksen yleiskatsaus

Tila

Valmis

Ehdot

Interventio / Hoito

Yksityiskohtainen kuvaus

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.

Opintotyyppi

Interventio

Ilmoittautuminen (Todellinen)

74

Vaihe

  • Vaihe 4

Yhteystiedot ja paikat

Tässä osiossa on tutkimuksen suorittajien yhteystiedot ja tiedot siitä, missä tämä tutkimus suoritetaan.

Opiskelupaikat

      • Alicante, Espanja, 03010
        • Hospital Gral. U. de Alicante
      • Barcelona, Espanja, 08035
        • Hospital Vall d'Hebron
      • Barcelona, Espanja, 08304
        • Hospital de Mataró
      • Granada, Espanja, 18014
        • Hospital Virgen de las Nieves
      • Granada, Espanja, 28012
        • Hospital U. San Cecilio
      • Madrid, Espanja, 28040
        • Hospital Clinico San Carlos
      • Madrid, Espanja, 28007
        • Hospital U. Gregorio Marañón
      • Madrid, Espanja, 28034
        • Hospital Ramón Y Cajal
      • Madrid, Espanja, 28029
        • Hospital Carlos III
      • Murcia, Espanja, 30003
        • Hospital Reina Sofía de Murcia
      • Tarragona, Espanja, 43007
        • Hospital Sant Pau i Santa Tecla
      • Valencia, Espanja, 46015
        • Hospital Arnau de Vilanova
      • Valencia, Espanja, 46009
        • Hospital La Fe
      • Valencia, Espanja, 46014
        • Hospital Gral. U. de Valencia
      • Valencia, Espanja, 46017
        • Hospital U. Dr. Peset
    • A Coruña
      • Santiago de Compostela, A Coruña, Espanja, 15781
        • Hospital Xeral de Vigo
    • Alicante
      • Elche, Alicante, Espanja, 03203
        • Hospital de Elche
    • Baleares
      • Palma de Mallorca, Baleares, Espanja, 07011
        • Hospital Son Espases
    • Barcelona
      • Badalona, Barcelona, Espanja, 08916
        • H. U. Germans Trias i Pujol
      • Hospitalet de Llobregat, Barcelona, Espanja, 08907
        • H. de Bellvitge
    • Cantabria
      • Santander, Cantabria, Espanja, 39011
        • Hospital U. Marques de Valdecilla
    • Castelló
      • Castelló De La Plana, Castelló, Espanja, 12004
        • Hospital General de Castellon
    • Murcia
      • Cartagena, Murcia, Espanja, 30203
        • Hospital Sta. Lucía/ H. Sta. Mª del Rosell
    • Vizcaya
      • Bilbao, Vizcaya, Espanja, 48903
        • Hospital de Cruces

Osallistumiskriteerit

Tutkijat etsivät ihmisiä, jotka sopivat tiettyyn kuvaukseen, jota kutsutaan kelpoisuuskriteereiksi. Joitakin esimerkkejä näistä kriteereistä ovat henkilön yleinen terveydentila tai aiemmat hoidot.

Kelpoisuusvaatimukset

Opintokelpoiset iät

18 vuotta - 99 vuotta (Aikuinen, Vanhempi Aikuinen)

Hyväksyy terveitä vapaaehtoisia

Ei

Sukupuolet, jotka voivat opiskella

Kaikki

Kuvaus

Inclusion Criteria:

  1. HIV-1 infected patients.
  2. Age 18 or more.
  3. 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)
  4. Patients receiving stable antiretroviral treatment for at least 6 months.
  5. Viral load under 50 copies/mL in the last 6 months
  6. Patients with CCR5 tropism based in V3 genotyping in proviral DNA using the G2P with a false positive rate of 10% interpretation method.
  7. A change of treatment is needed due to toxicity / tolerability problems with the 3rd drug (PI, NNRTI or ININ), according to investigator criteria.
  8. An antiretroviral regimen containing a CCR5-antagonist is suitable for the patient (physician criteria).
  9. Voluntary written informed consent.

Exclusion Criteria:

  1. Pregnancy or breast-feeding.
  2. Patient previously treated with maraviroc.
  3. Patients with documented resistance to maraviroc or any other drug considered for the new ARV regimen.
  4. Viral failure in the moment of inclusion.
  5. Bad adherence history or anticipated (investigator criteria).

Opintosuunnitelma

Tässä osiossa on tietoja tutkimussuunnitelmasta, mukaan lukien kuinka tutkimus on suunniteltu ja mitä tutkimuksella mitataan.

Miten tutkimus on suunniteltu?

Suunnittelun yksityiskohdat

  • Ensisijainen käyttötarkoitus: Perustiede
  • Jako: Ei käytössä
  • Inventiomalli: Yksittäinen ryhmätehtävä
  • Naamiointi: Ei mitään (avoin tarra)

Aseet ja interventiot

Osallistujaryhmä / Arm
Interventio / Hoito
Kokeellinen: Change of 3rd drug to maraviroc
Change of PI, NNRTI or integrase inhibitor to CCR5 antagonist (maraviroc)
Change of PI, NNRTI or integrase inhibitor to CCR5 antagonist (maraviroc)

Mitä tutkimuksessa mitataan?

Ensisijaiset tulostoimenpiteet

Tulosmittaus
Aikaikkuna
Percentage of patients with viral load under 50 copies/mL
Aikaikkuna: Week 48
Week 48

Toissijaiset tulostoimenpiteet

Tulosmittaus
Toimenpiteen kuvaus
Aikaikkuna
Percentage of patients without confirmed virological failure.
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: Week 12
To evaluate other aspects related to maintanence of virological response
Week 12
Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Aikaikkuna: Week 24
To evaluate other aspects related to maintanence of virological response
Week 24
Proportion of patients treated with maraviroc with viral load under 50 copies/mL
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: Up to week 48
To evaluate other aspects related to maintanence of virological response
Up to week 48
Association between pre-treatment level of X4 viruses detected by deep sequencing at screening and virological response to maraviroc based therapy at week 48.
Aikaikkuna: Week 48
To evaluate changes in HIV tropism
Week 48
Level of X4 viruses by detected by population sequencing.
Aikaikkuna: 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 population sequencing.
Aikaikkuna: 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.
Aikaikkuna: 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.
Aikaikkuna: 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.
Aikaikkuna: 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.
Aikaikkuna: 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
High-resolution assessment of virus diversity and X4 level using deep sequencing
Aikaikkuna: Week 12
High-resolution assessment of virus diversity and X4 level using deep sequencing at week 12 and at the time of virological failure.
Week 12
High-resolution assessment of virus diversity and X4 level using deep sequencing
Aikaikkuna: 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.
Aikaikkuna: From baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From baseline to week 48.
Median change of HDL cholesterol.
Aikaikkuna: From Baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From Baseline to week 48.
Median change of LDL cholesterol.
Aikaikkuna: From Baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From Baseline to week 48.
Median change of triglycerides
Aikaikkuna: From Baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From Baseline to week 48.
Median change of AST serum levels.
Aikaikkuna: From Baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From Baseline to week 48.
Median change of ALT serum levels.
Aikaikkuna: From Baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From Baseline to week 48.
Median change of alkaline phosphatase serum levels.
Aikaikkuna: From Baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From Baseline to week 48.
Median change of total bilirubin serum levels.
Aikaikkuna: From Baseline to week 48.
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
From Baseline to week 48.
Cumulative number of adverse events
Aikaikkuna: Week 4
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 4
Cumulative number of adverse events
Aikaikkuna: Week 12
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 12
Cumulative number of adverse events
Aikaikkuna: Week 24
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 24
Cumulative number of adverse events
Aikaikkuna: Week 36
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 36
Cumulative number of adverse events
Aikaikkuna: Week 48
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 48
Cumulative number of grade 3-4 adverse events
Aikaikkuna: Week 4
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 4
Cumulative number of grade 3-4 adverse events
Aikaikkuna: Week 12
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 12
Cumulative number of grade 3-4 adverse events
Aikaikkuna: Week 24
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 24
Cumulative number of grade 3-4 adverse events
Aikaikkuna: Week 36
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 36
Cumulative number of grade 3-4 adverse events
Aikaikkuna: 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
Aikaikkuna: Up to week 48
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Up to week 48

Yhteistyökumppanit ja tutkijat

Täältä löydät tähän tutkimukseen osallistuvat ihmiset ja organisaatiot.

Opintojen ennätyspäivät

Nämä päivämäärät seuraavat ClinicalTrials.gov-sivustolle lähetettyjen tutkimustietueiden ja yhteenvetojen edistymistä. National Library of Medicine (NLM) tarkistaa tutkimustiedot ja raportoidut tulokset varmistaakseen, että ne täyttävät tietyt laadunvalvontastandardit, ennen kuin ne julkaistaan ​​julkisella verkkosivustolla.

Opi tärkeimmät päivämäärät

Opiskelun aloitus

Keskiviikko 1. kesäkuuta 2011

Ensisijainen valmistuminen (Todellinen)

Tiistai 1. huhtikuuta 2014

Opintojen valmistuminen (Todellinen)

Torstai 1. toukokuuta 2014

Opintoihin ilmoittautumispäivät

Ensimmäinen lähetetty

Perjantai 17. kesäkuuta 2011

Ensimmäinen toimitettu, joka täytti QC-kriteerit

Keskiviikko 22. kesäkuuta 2011

Ensimmäinen Lähetetty (Arvio)

Torstai 23. kesäkuuta 2011

Tutkimustietojen päivitykset

Viimeisin päivitys julkaistu (Todellinen)

Torstai 14. marraskuuta 2019

Viimeisin lähetetty päivitys, joka täytti QC-kriteerit

Maanantai 11. marraskuuta 2019

Viimeksi vahvistettu

Tiistai 1. heinäkuuta 2014

Lisää tietoa

Tähän tutkimukseen liittyvät termit

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