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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.

Обзор исследования

Статус

Завершенный

Условия

Вмешательство/лечение

Подробное описание

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.

Тип исследования

Интервенционный

Регистрация (Действительный)

74

Фаза

  • Фаза 4

Контакты и местонахождение

В этом разделе приведены контактные данные лиц, проводящих исследование, и информация о том, где проводится это исследование.

Места учебы

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

Критерии участия

Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.

Критерии приемлемости

Возраст, подходящий для обучения

От 18 лет до 99 лет (Взрослый, Пожилой взрослый)

Принимает здоровых добровольцев

Нет

Полы, имеющие право на обучение

Все

Описание

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).

Учебный план

В этом разделе представлена ​​подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.

Как устроено исследование?

Детали дизайна

  • Основная цель: Фундаментальная наука
  • Распределение: Н/Д
  • Интервенционная модель: Одногрупповое задание
  • Маскировка: Нет (открытая этикетка)

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Экспериментальный: 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)

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Временное ограничение
Percentage of patients with viral load under 50 copies/mL
Временное ограничение: Week 48
Week 48

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Percentage of patients without confirmed virological failure.
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 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.
Временное ограничение: Week 48
To evaluate changes in HIV tropism
Week 48
Level of X4 viruses by detected by population sequencing.
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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.
Временное ограничение: 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
Временное ограничение: Week 4
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 4
Cumulative number of adverse events
Временное ограничение: Week 12
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 12
Cumulative number of adverse events
Временное ограничение: Week 24
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 24
Cumulative number of adverse events
Временное ограничение: Week 36
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 36
Cumulative number of adverse events
Временное ограничение: Week 48
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 48
Cumulative number of grade 3-4 adverse events
Временное ограничение: Week 4
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 4
Cumulative number of grade 3-4 adverse events
Временное ограничение: Week 12
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 12
Cumulative number of grade 3-4 adverse events
Временное ограничение: Week 24
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 24
Cumulative number of grade 3-4 adverse events
Временное ограничение: Week 36
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Week 36
Cumulative number of grade 3-4 adverse events
Временное ограничение: 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
Временное ограничение: Up to week 48
To evaluate the tolerability and safety with CCR5 antagonist containing regimen
Up to week 48

Соавторы и исследователи

Здесь вы найдете людей и организации, участвующие в этом исследовании.

Даты записи исследования

Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.

Изучение основных дат

Начало исследования

1 июня 2011 г.

Первичное завершение (Действительный)

1 апреля 2014 г.

Завершение исследования (Действительный)

1 мая 2014 г.

Даты регистрации исследования

Первый отправленный

17 июня 2011 г.

Впервые представлено, что соответствует критериям контроля качества

22 июня 2011 г.

Первый опубликованный (Оценивать)

23 июня 2011 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

14 ноября 2019 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

11 ноября 2019 г.

Последняя проверка

1 июля 2014 г.

Дополнительная информация

Термины, связанные с этим исследованием

Ключевые слова

Другие идентификационные номера исследования

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