- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica 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.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Iscrizione (Effettivo)
Contatti e Sedi
Luoghi di studio
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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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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Descrizione
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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
Intervento / Trattamento |
|---|---|
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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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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Semen to Plasma Ratio of HIV Concentration During the Dosing Interval for Dar, Evr, Mar & Ral.
Lasso di tempo: 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.
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Determine the Extent of Maraviroc Penetration Into Semen by Obtaining Semen to Plasma Ratios Across the Dosing Interval
Lasso di tempo: 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.
Lasso di tempo: 6 months
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6 months
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Collaboratori e investigatori
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Altri numeri di identificazione dello studio
- WS 353380
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
Prove cliniche su Maraviroc Concentrations in Semen
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Next Life SciencesReclutamentoContraccezione maschile | Volume del Semen | Motilità degli SpermatozoiStati Uniti
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Johns Hopkins UniversityCompletatoSoggetti sani | Polimorfismo enzimatico del citocromo P450 CYP3A5 | Farmacocinetica di MaravirocStati Uniti
Prove cliniche su Measuring semen samples
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Città di Lecce Hospital, GVM Care & ResearchNon ancora reclutamentoInfertilità maschile | Malattia della valvola cardiacaItalia
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KK Women's and Children's HospitalReclutamentoProblemi di fertilità | Problemi riproduttiviSingapore
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Universitair Ziekenhuis BrusselVrije Universiteit BrusselIscrizione su invitoCancro infantile | Patologie ematologicheBelgio