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- Sperimentazione clinica NCT00933283
A Study to Investigate the Potential Interaction Between Telaprevir and Methadone, at Steady-State
30 novembre 2012 aggiornato da: Tibotec BVBA
A Phase I, Open-Label, Single-Sequence Drug-Drug Interaction Trial in Subjects on Stable Methadone Maintenance Therapy, to Investigate the Potential Interaction Between Telaprevir 750 mg q8h and Methadone, at Steady-State
The purpose of this study is to evaluate the effect of steady-state (constant concentration of medication in the blood) telaprevir 750 mg every 8 hours on the steady-state pharmacokinetics (how the drug concentrations change over time) of R- and S-methadone.
Panoramica dello studio
Stato
Completato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
This is a Phase 1, open-label (all people know the identity of the intervention), single-sequence study to evaluate the potential interaction of steady-state telaprevir on the steady-state pharmacokinetics of methadone.
The study consists of 3 phases: the screening phase (within 21 days prior to the start of supervised methadone intake on Day -14), treatment phase, and follow-up phase.
Participants on stable methadone maintenance therapy will be enrolled in this study and their methadone doses will not be changed starting at Day -14.
During the treatment phase, telaprevir will be added for 7 days (from Day 1 to Day 7) to participants' current methadone therapy.
The methadone dosage will not to be changed from Day -14 until Day 7. All the intakes of methadone and telaprevir will be supervised and pharmacokinetic parameters will be measured during the study.
Safety evaluations for adverse events, clinical laboratory tests, alcohol breath test, cardiovascular safety, and other evaluations (physical examination, and pharmacodynamic assessments) will be performed throughout the study.
The total duration of the study for each participant is approximately 60 days.
Tipo di studio
Interventistico
Iscrizione (Effettivo)
18
Fase
- Fase 1
Criteri di partecipazione
I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.
Criteri di ammissibilità
Età idonea allo studio
Da 18 anni a 55 anni (Adulto)
Accetta volontari sani
Sì
Sessi ammissibili allo studio
Tutto
Descrizione
Inclusion Criteria:
- Must receive once daily oral methadone maintenance therapy at a stable individualized dose of 30 to 130 mg for at least 2 weeks prior to screening, formulated as commercially available tablets or solution
- Must agree not to change the current methadone dose from screening until Day 7 included to have a daily observed and documented methadone intake from Day -14 until Day 8 and a daily observed and documented telaprevir intake from Day 1 until Day 7
- Participants have to obtain approval for participation from his/her addiction physician, and the addiction physician has to agree to provide medical care for the participant after discharge from study center
- General medical condition must not interfere with the assessments and the completion of the study
- Health assessments will be done on the basis of physical examination, medical history, electrocardiogram, vital signs and the results of blood biochemistry, blood coagulation and hematology tests and a urinalysis carried out at screening
Exclusion Criteria:
- History of any illness that could confound the results of the study or pose an additional risk in administering study medication to the participant, for eg, history of relevant medication or food allergies, history of cardiovascular or central nervous system disease, history or presence of clinically significant pathology or history of mental disease
- Consumption of herbal medications or dietary supplements, vitamins, and grapefruit or grapefruit juice, apple juice or orange juice within 14 days before Day -1
- Current alcohol use, which, in the assessment of the investigator, could compromise participant's safety or compliance with the study protocol procedures
- Test positive for drugs of abuse such as cocaine, amphetamines, barbiturates, benzodiazepines, or opiates on Day -2 unless explained by allowed concomitant medications
- Participation in a clinical study involving administration of an investigational medication within 60 days or 5 half-lives (whichever was longer) prior to the screening visit
Piano di studio
Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: N / A
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Telaprevir + Methadone
Patients will receive telaprevir 750 mg orally, every 8 hours from Day 1 to Day 7, along with methadone 30 to 130 mg, once daily.
|
Telaprevir 750 mg will be administered orally, every 8 hours from Day 1 to Day 7, along with methadone, once daily.
Methadone 30 to 130 mg will be administered as a stable oral therapy from Day -14 to Day -1, in combination with telaprevir from Day 1 to Day 7, and then alone as a continued intake dose for an additional 30 to 32 days.
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Maximum plasma concentration (Cmax) of telaprevir
Lasso di tempo: On Day 7
|
Pharmacokinetic parameter Cmax of telaprevir is measured when telaprevir will be administered at 750 mg every 8 hours for 7 days added to stable methadone maintenance therapy.
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On Day 7
|
|
Minimum plasma concentration (Cmin) of telaprevir
Lasso di tempo: On Day 7
|
Pharmacokinetic parameter Cmin of telaprevir is measured when telaprevir will be administered every 8 hours for 7 days added to stable methadone maintenance therapy.
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On Day 7
|
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Area under the plasma concentration-time curve (AUC) of telaprevir
Lasso di tempo: On Day 7
|
Pharmacokinetic parameter AUC of telaprevir is measured when telaprevir will be administered every 8 hours for 7 days added to stable methadone maintenance therapy.
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On Day 7
|
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Cmax of R-methadone
Lasso di tempo: Day -1 and Day 7
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Pharmacokinetic parameter Cmax of R-methadone is measured during stable methadone maintenance therapy alone and in the presence of steady-state telaprevir at 750 mg every 8 hours.
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Day -1 and Day 7
|
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Cmin of R-methadone
Lasso di tempo: Day -1 and Day 7
|
Pharmacokinetic parameter Cmin of R-methadone is measured during stable methadone maintenance therapy alone and in the presence of steady-state telaprevir every 8 hours.
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Day -1 and Day 7
|
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AUC of R-methadone
Lasso di tempo: Day -1 and Day 7
|
Pharmacokinetic parameter AUC of R-methadone is measured during stable methadone maintenance therapy alone and in the presence of steady-state telaprevir every 8 hours.
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Day -1 and Day 7
|
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Cmax of S-methadone
Lasso di tempo: Day -1 and Day 7
|
Pharmacokinetic parameter Cmax of S-methadone is measured during stable methadone maintenance therapy alone and in the presence of steady-state telaprevir at 750 mg every 8 hours.
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Day -1 and Day 7
|
|
Cmin of S-methadone
Lasso di tempo: Day -1 and Day 7
|
Pharmacokinetic parameter Cmin of S-methadone is measured during stable methadone maintenance therapy alone and in the presence of steady-state telaprevir every 8 hours.
|
Day -1 and Day 7
|
|
AUC of S-methadone
Lasso di tempo: Day -1 and Day 7
|
Pharmacokinetic parameter AUC of S-methadone is measured during stable methadone maintenance therapy alone and in the presence of steady-state telaprevir every 8 hours.
|
Day -1 and Day 7
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Short Opiate Withdrawal Scale [SOWS]
Lasso di tempo: Day -7, and Day -2 to Day 7
|
Pharmacodynamic assessments of methadone withdrawal are performed by means of SOWS.
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Day -7, and Day -2 to Day 7
|
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Desires for Drugs Questionnaire [DDQ]
Lasso di tempo: Day -7, and Day -2 to Day 7
|
Pharmacodynamic assessments of methadone withdrawal are performed by means of DDQ.
|
Day -7, and Day -2 to Day 7
|
|
Pupillometry
Lasso di tempo: Day -1, Day 2, Day 4, and Day 7
|
Pharmacodynamic assessments of methadone withdrawal are performed by means of pupillometry.
|
Day -1, Day 2, Day 4, and Day 7
|
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Number of participants with adverse events
Lasso di tempo: Up to 60 days
|
Up to 60 days
|
Collaboratori e investigatori
Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.
Sponsor
Collaboratori
Pubblicazioni e link utili
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Studiare le date dei record
Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.
Studia le date principali
Inizio studio
1 luglio 2009
Completamento primario (Effettivo)
1 novembre 2009
Completamento dello studio (Effettivo)
1 dicembre 2009
Date di iscrizione allo studio
Primo inviato
2 luglio 2009
Primo inviato che soddisfa i criteri di controllo qualità
2 luglio 2009
Primo Inserito (Stima)
7 luglio 2009
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
3 dicembre 2012
Ultimo aggiornamento inviato che soddisfa i criteri QC
30 novembre 2012
Ultimo verificato
1 novembre 2012
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- CR015931
- VX-950-TiDP24-C135 (Altro identificatore: Tibotec-Virco Virology BVBA)
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 .
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