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Phenotypical Approach of the Drug Metabolizing Hormones Activity Before and After Roux-en Y-Gastric Bypass (SODA)

3. januar 2017 opdateret af: Assistance Publique - Hôpitaux de Paris

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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

11

Fase

  • Fase 1

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Frankrig
      • Paris, Frankrig, 75010
        • Unit of internal medicine A, Lariboisière Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 60 år (Voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: phenotypical approach
Medicin: phenotypical approach
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

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Phenotypical markers of enzymes and transporter activity
Tidsramme: at 5-8weeks
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
at 5-8weeks
Phenotypical markers of enzymes and transporter activity
Tidsramme: 25-30 weeks
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
25-30 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Intestinal and hepatic expression and activity of the enzymes and transporter of interest and markers of inflammation
Tidsramme: before surgery
Intestinal and hepatic expression and activity of the enzymes and transporter of interest and markers of inflammation
before surgery

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Assistance Publique - Hôpitaux de Paris

Samarbejdspartnere

Ministry of Health, France

Efterforskere

  • Ledende efterforsker: Célia LLORET-LINARES, MD,, Assistance Publique - Hôpitaux de Paris

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. september 2011

Primær færdiggørelse (Faktiske)

1. februar 2014

Studieafslutning (Faktiske)

1. februar 2014

Datoer for studieregistrering

Først indsendt

19. august 2011

Først indsendt, der opfyldte QC-kriterier

28. september 2011

Først opslået (Skøn)

29. september 2011

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

4. januar 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. januar 2017

Sidst verificeret

1. december 2016

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • P100506
  • 2011-A00312-39 (Anden identifikator: IDRCB)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med phenotypical approach

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Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Pakistan

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner