- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus NCT01009034
Concentrations of Maraviroc in the Semen of HIV-Infected Men (NCT01009034)
Study to Determine the Concentrations of Maraviroc in Semen, the Seminal to Plasma Ratio of Maraviroc and the Variability in Seminal to Plasma Ratios Over the Maraviroc Dosing Period.
The objective of this study is to determine if concentrations of maraviroc in semen exceed the 50% and 95% inhibitory concentrations of HIV during the dose interval.
The secondary objective is to determine the extent of maraviroc penetration into semen by obtaining semen to plasma ratios across the dosing interval, to determine the area under the concentration time curve of maraviroc in semen, and to determine the variability in the penetration of maraviroc into the seminal compartment over the maraviroc dosing period.
Tutkimuksen yleiskatsaus
Tila
Interventio / Hoito
Yksityiskohtainen kuvaus
Opintotyyppi
Ilmoittautuminen (Todellinen)
Yhteystiedot ja paikat
Opiskelupaikat
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Ontario
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Ottawa, Ontario, Kanada, K1H 8L6
- The Ottawa Hospital
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Toronto, Ontario, Kanada, M5B1L6
- Canadian Immunodeficiency Research Collaborative
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-
Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
Hyväksyy terveitä vapaaehtoisia
Sukupuolet, jotka voivat opiskella
Näytteenottomenetelmä
Tutkimusväestö
Kuvaus
Inclusion Criteria:
- HIV infected male
- 18 years old or older
- on maraviroc twice daily as part of their antiretroviral regimen for at least 3 months prior to screening
- viral load < 50 copies/mL at least one month prior to enrolling
- able to read, understand and sign a written informed consent prior to initiation of the study
- medically stable at the time of the study, with no evidence of acute illness
Exclusion Criteria:
- having difficulty adhering to current antiretroviral therapy
- patient is expected to have difficulties adhering with study protocol
- patients with malignancy, or acute renal or liver disease
- patient with active AIDS-defining illness
- patient with any medical, psychiatric or other circumstance that may impede the provision of informed consent
- patient with any of the following abnormalities at the time of screening:
- hemoglobin < 85 g/L
- absolute neutrophil count < 1000 cells/uL
- platelet count < 50,000 cells/uL
- AST, ALT or total bilirubin > 3 times the upper limit of normal
- serum creatinine > 1.5 times upper limit of normal
- patient receiving concomitant therapy with rifampin or St. John's wort
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
Kohortit ja interventiot
Ryhmä/Kohortti |
Interventio / Hoito |
|---|---|
|
12 male HIV-positive patients
Male HIV-positive patients who have been receiving stable antiretroviral therapy that includes maraviroc for a minimum of three months.
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Measure semen sample concentrations, obtain semen to plasma ratios across the dosing interval, the area under the concentration time curve of maraviroc in semen, the variability in the penetration of maraviroc into the seminal compartment over the raltegravir dosing period.
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Semen to Plasma Ratio of HIV Concentration During the Dosing Interval for Dar, Evr, Mar & Ral.
Aikaikkuna: Semen samples were collected 30 minutes to 1 hour before the morning dose of medication (day 1), and then at hours 1, 2, 4, 8, and 12 postdrug ingestion on days 2-6. Blood samples were collected within 1 hour of the semen sample.
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We used a staggered sampling approach in which semen samples were produced by participants over several days at different sampling times relative to the morning dose of antiretrovirals.
Specifi- cally, semen samples were collected 30 minutes to 1 hour before the morning dose of medication (day 1), and then at hours 1, 2, 4, 8, and 12 postdrug ingestion on days 2-6.
We collected corresponding blood samples within 1 hour of the semen sample.
For each participant a single value (the HIV concentration ratio) was calculated as the minimum HIV concentration in the semen over the minimum HIV concentration in the blood throughout the dosing interval.
|
Semen samples were collected 30 minutes to 1 hour before the morning dose of medication (day 1), and then at hours 1, 2, 4, 8, and 12 postdrug ingestion on days 2-6. Blood samples were collected within 1 hour of the semen sample.
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Determine the Extent of Maraviroc Penetration Into Semen by Obtaining Semen to Plasma Ratios Across the Dosing Interval
Aikaikkuna: Semen samples were collected 30 minutes to 1 hour before the morning dose of medication (day 1), and then at hours 1, 2, 4, 8, and 12 postdrug ingestion on days 2-6. Blood samples were collected within 1 hour of the semen sample
|
For each participant, the Maraviroc penetration ratio was calculated as the maximum Maraviroc concentration in the semen over the maximum Maraviroc concentration in the blood throughout the dosing interval.
|
Semen samples were collected 30 minutes to 1 hour before the morning dose of medication (day 1), and then at hours 1, 2, 4, 8, and 12 postdrug ingestion on days 2-6. Blood samples were collected within 1 hour of the semen sample
|
|
Determine the Area Under the Concentration Time Curve of Maraviroc in Semen.
Aikaikkuna: 6 months
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6 months
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Yhteistyökumppanit ja tutkijat
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus
Ensisijainen valmistuminen (Todellinen)
Opintojen valmistuminen (Todellinen)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Arvio)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Arvio)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Muut tutkimustunnusnumerot
- WS 353380
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