Concentrations of Maraviroc in the Semen of HIV-Infected Men (NCT01009034)
8. september 2014 oppdatert av: Canadian Immunodeficiency Research Collaborative
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.
Studieoversikt
Status
Fullført
Intervensjon / Behandling
Detaljert beskrivelse
The patient population will consist of 12 male HIV-positive patients who have been receiving stable antiretroviral therapy that includes maraviroc for a minimum of three months.
Patients will be enrolled from one clinic in downtown Toronto and a hospital affiliated HIV specialty clinic in Ottawa, Ontario.
Eligible patients will have evidence of full virologic suppression (HIV viral load < 50 copies/mL) at least one month prior to enrollment in the study.
No changes will be made to the patients antiretroviral therapy during the course of the study.
Studietype
Observasjonsmessig
Registrering (Faktiske)
14
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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Ontario
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Ottawa, Ontario, Canada, K1H 8L6
- The Ottawa Hospital
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Toronto, Ontario, Canada, M5B1L6
- Canadian Immunodeficiency Research Collaborative
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
18 år og eldre (Voksen, Eldre voksen)
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Mann
Prøvetakingsmetode
Ikke-sannsynlighetsprøve
Studiepopulasjon
12 HIV-positive males
Beskrivelse
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
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
|---|---|
|
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.
|
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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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Semen to Plasma Ratio of HIV Concentration During the Dosing Interval for Dar, Evr, Mar & Ral.
Tidsramme: 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.
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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.
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Determine the Extent of Maraviroc Penetration Into Semen by Obtaining Semen to Plasma Ratios Across the Dosing Interval
Tidsramme: 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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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.
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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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Determine the Area Under the Concentration Time Curve of Maraviroc in Semen.
Tidsramme: 6 months
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6 months
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Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. oktober 2009
Primær fullføring (Faktiske)
1. desember 2011
Studiet fullført (Faktiske)
1. desember 2012
Datoer for studieregistrering
Først innsendt
5. november 2009
Først innsendt som oppfylte QC-kriteriene
5. november 2009
Først lagt ut (Anslag)
6. november 2009
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
9. september 2014
Siste oppdatering sendt inn som oppfylte QC-kriteriene
8. september 2014
Sist bekreftet
1. september 2014
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
- WS 353380
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