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- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT01443039
Phenotypical Approach of the Drug Metabolizing Hormones Activity Before and After Roux-en Y-Gastric Bypass (SODA)
Phenotypical Approach of the Drug Metabolizing Hormones Activity (CYP1A2, CYP2D6, CYP2C9, CYP2C19, CYP3A4 and P-gp) Before and After Roux-en Y-Gastric Bypass. The SODA Protocol: Surgery for Obesity and Drug Availability
The activity of drug-metabolizing enzymes and transporters evolutes after Roux-en-Y gastric Bypass.
Primary aim : To study the intra individual evolution of phenotypical markers of different drug metabolizing enzymes and one transporter (CYP1A2, CYP2D6, CYP2C9, CYP2C19, CYP3A4 and P-gp), using a cocktail phenotypic approach, after Roux-en-Y gastric Bypass.
Panoramica dello studio
Descrizione dettagliata
Principal Judgement criteria :
Phenotypical markers of enzymes and transporter activity before, at 5-8 weeks and 25-30 weeks following surgery.
Secondary judgement criteria :
- Genetic polymorphisms known to affect expression and/or activity of enzymes and transporter.
- Intestinal and hepatic expression and activity of the enzymes and transporter of interest.
- Markers of inflammation Methodology, study design : open-labelled monocentric study.
Sample size : It will be a descriptive experimental study involving 12 subjects.
Study design : In centre 1: Inclusion at least 2 weeks prior to surgery (V0)
In centre 2: Three studies of 12 hours each will occur (in addition with the usual clinical and surgical follow up) at three times periods: in the 8 weeks period before surgery (V1), at 5-8 weeks after surgery (V2) and at 25-30 weeks after surgery (V3).
In centre 3: the patients will undergo gastric bypass surgery (corresponding to the usual clinical and surgical follow up) and samples of jejunum and liver will be obtain during the surgery (J0).
Centres 4 and 5 are involved in samples analysis.Hence, patients will attend 3 visits, in addition to the usual clinical and surgical follow-up.
Study duration: 26 months (with duration of inclusion of 18 months)
Duration for a patient: 38 weeks at maximum (8 months)
Investigating center and participating units: one center enrolling the patients and three centers involving in the others investigations.
Tipo di studio
Iscrizione (Effettivo)
Fase
- Fase 1
Contatti e Sedi
Luoghi di studio
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Paris, Francia, 75010
- Unit of internal medicine A, Lariboisière Hospital
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Patients with morbid obesity (IMC > 40 kg/m²) or severe obesity (IMC=35-40 kg/m²) with co morbidities (sleep apnea syndrome or hypertension without treatment or steatosis hepatitis) candidates for a gastric bypass.
- Patient not receiving more than two treatments whose effect on the expression of enzymes and drug transporters is zero other than vitamins.
- Patient agreeing to participate at three studies of one day (12 hours) occurring at three different periods.
- Patients aged between 18 and 60 years old.
- Patient giving its well-informed and free consent.
- Patient without allergy to any of the drugs used for test.
- Patients living in France during the study and with French social security
Exclusion Criteria:
- Tabacco
- Contraception including estrogens compounds
- Medication other than vitamins.
- Allergy
Piano di studio
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 |
|---|---|
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Sperimentale: phenotypical approach
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each visit : CAFEINE : (solution orale) 2 ampoules de 2 ml = 100 mg de CAFEINE DEXTROMETHORPHANE : 15 ml de sirop contains 20 mg =>22,5 ml = 30mg Midazolam : (solution injectable, ampoule 1 ml = 1 mg) : deux ampoules = 2 mg Digoxine nativelle (solution injectable, ampoule de 0.5mg) : 1 ampoule per os = 0.5 mg Losartan 50 mg : 1cp de 50mg
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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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Phenotypical markers of enzymes and transporter activity
Lasso di tempo: at 5-8weeks
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plasmatic [Paraxanthine/caffeine] ratio (T4H) at 5-8 weeks following surgery.
- plasmatic [Omeprazole/5-hydroxyomeprazole] ratio (T4H) at 5-8 weeks following surgery.
- urinary Log (dextromethorphan/dextrorphan) (T0-T8h) at 5-8 weeks following surgery.
- urinary Losartan/ E-3174 (T0-8h) at 5-8 weeks following surgery.
- plasmatic AUC 0-inf midazolam at 5-8 weeks following surgery.
- plasmatic AUC 0-inf digoxin at 5-8 weeks following surgery
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at 5-8weeks
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Phenotypical markers of enzymes and transporter activity
Lasso di tempo: 25-30 weeks
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plasmatic [Paraxanthine/caffeine] ratio (T4H) at 25-30 weeks following surgery.
- plasmatic [Omeprazole/5-hydroxyomeprazole] ratio (T4H) at 25-30 weeks following surgery.
- urinary Log (dextromethorphan/dextrorphan) (T0-T8h) at 25-30 weeks following surgery.
- urinary Losartan/ E-3174 (T0-8h) at 25-30 weeks following surgery.
- plasmatic AUC 0-inf midazolam at 25-30 weeks following surgery.
- plasmatic AUC 0-inf digoxin at 25-30 weeks following surgery
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25-30 weeks
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Intestinal and hepatic expression and activity of the enzymes and transporter of interest and markers of inflammation
Lasso di tempo: before surgery
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Intestinal and hepatic expression and activity of the enzymes and transporter of interest and markers of inflammation
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before surgery
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Collaboratori e investigatori
Collaboratori
Investigatori
- Investigatore principale: Célia LLORET-LINARES, MD,, Assistance Publique - Hopitaux de Paris
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
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- P100506
- 2011-A00312-39 (Altro identificatore: IDRCB)
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
prodotto fabbricato ed esportato dagli Stati Uniti
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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