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Multiple Dose Effects of Hydrochlorothiazide and Isosorbide Mononitrate on Glucose Homeostasis (MK-0000-117)(Completed)

22. juli 2015 opdateret af: Merck Sharp & Dohme LLC

A Randomized, Double-Blind, Placebo-Controlled, 2-Part Study to Evaluate the Multiple Dose Effects of Hydrochlorothiazide and Isosorbide Mononitrate on Glucose Homeostasis in Obese Patients With Hypertension

This study will measure and compare changes in insulin production and sensitivity using the hyperglycemic clamp technique in obese patients with impaired glucose tolerance and hypertension treated with placebo, isosorbide mononitrate (ISMN) or hydrochlorothiazide (HCTZ).

Studieoversigt

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

64

Fase

  • Fase 1

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

35 år til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Female participants must be post-menopausal
  • Body Mass Index (BMI) of at least 29 kg/m^2
  • Weight has been stable over the past 3 months
  • Has never been treated for hypertension or is diagnosed with hypertension taking up to 2 anti-hypertensive medications
  • Willing to stop hypertension treatment for 14 days prior to randomization and throughout the study
  • Does not have a history of diabetes
  • In good health with the exception of hypertension
  • No history of abnormal heart rhythms
  • Part I only: willing to comply with high potassium/low sodium diet for the duration of the study
  • Willing to avoid strenuous physical activity during the study
  • Nonsmoker and/or has not used nicotine for at least 3 months and agrees to refrain from use of tobacco-containing products throughout the study
  • Agrees to refrain from consuming alcohol and caffeine during in-patient periods and to limit consumption at all other times during the study
  • Agrees not to consume grapefruit, grapefruit products, and citrus, apple, and pineapple juices 2 weeks prior to administration of the first dose of study drug

Exclusion Criteria:

  • History of any illness that may make their participation in the study unsafe or confuse the study results
  • Taking spironolactone or eplerenone
  • Cannot refrain from using any prescription or non-prescription drugs during the study
  • On a weight loss program and is not in the maintenance phase
  • Started a weight loss drug within 8 weeks of the first study visit
  • Consumes excessive amounts of alcohol or caffeine
  • Has had major surgery, donated or lost 1 unit of blood within 4 weeks of the first study visit
  • History of multiple and/or severe allergies to drugs or food
  • Is dehydrated

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: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Part I, Placebo-HCTZ
Placebo in Period 1 followed by HCTZ in Period 2
HCTZ 50 mg (two 25 mg capsules) once daily for 4 weeks per treatment period.
Andre navne:
  • HCTZ
Placebo to HCTZ two 0 mg capsules once daily for 4 weeks per treatment period
Eksperimentel: Part I, HCTZ-Placebo
HCTZ in Period 1, followed by placebo in Period 2
HCTZ 50 mg (two 25 mg capsules) once daily for 4 weeks per treatment period.
Andre navne:
  • HCTZ
Placebo to HCTZ two 0 mg capsules once daily for 4 weeks per treatment period
Eksperimentel: Part II, Placebo-ISMN
Placebo in Period 1, followed by ISMN in Period 2
ISMN 60 mg extended release capsule once daily for 4 weeks per treatment period
Placebo to ISMN 0 mg capsule once daily for 4 weeks per treatment period
Eksperimentel: Part II, ISMN-Placebo
ISMN in Period 1, followed by placebo in Period 2
ISMN 60 mg extended release capsule once daily for 4 weeks per treatment period
Placebo to ISMN 0 mg capsule once daily for 4 weeks per treatment period

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Part I: Change in Insulin Secretion at Steady-state Compared to Placebo in Participants With Impaired Glucose Tolerance (IGT)
Tidsramme: 90 -120 minutes post-dose
Steady state was defined as 90-120 minutes post-dose. IGT was defined as a 2 hour plasma glucose >= 140 and <= 199 mg/dL during a 75g oral glucose tolerance test at screening.
90 -120 minutes post-dose
Part I: Change in Insulin Secretion at Steady-state Compared to Placebo in Participants With Impaired Fasting Glucose (IFG)
Tidsramme: 90 -120 minutes post-dose
Steady state was defined as 90-120 minutes post-dose. IFG was defined as fasting plasma glucose (FPG) between 100 and 125 mg/dL at screening.
90 -120 minutes post-dose
Part I: Change in Insulin Secretion at Steady-state Compared to Placebo in Participants Who Had Normal Glucose Tolerance (NGT)
Tidsramme: 90 -120 minutes post-dose
Steady state was defined as 90-120 minutes post-dose. NGT participants (FPG <100 mg/dL & 2 hour plasma glucose (PG) <140 mg/dL during a 75g oral glucose tolerance test (OGTT) at screening) were neither Impaired Glucose Tolerant (IGT) nor Impaired Fasting Glucose (IFG). IGT was defined as a 2 hour plasma glucose >= 140 and <= 199 mg/dL during a 75g oral glucose tolerance test at screening. IFG was defined as FPG between 100 and 125 mg/dL at screening.
90 -120 minutes post-dose
Part II: Ratio of Whole Body Glucose Disposal to Plasma Insulin at Steady-state
Tidsramme: 90 -120 minutes post-dose
Steady state was defined as 90-120 minutes post-dose. The ratio was the quantity of glucose disposed by the body per kg body weight per minute at steady state divided by the approximate steady state plasma insulin concentration. The approximate steady state plasma insulin concentration was estimated by the time-weighted average of the insulin concentration measured at 10 minute intervals in which time = 90, 100, 110, and 120 minutes.
90 -120 minutes post-dose

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Part I: Change in the Ratio of Whole Body Glucose Disposal to Plasma Insulin at Steady State in Participants With Impaired Glucose Tolerant (IGT)
Tidsramme: 90 -120 minutes post-dose
Steady state was defined as 90-120 minutes post-dose. The ratio was the quantity of glucose disposed by the body per kg body weight per minute at steady state divided by the approximate steady state plasma insulin concentration. The approximate steady state plasma insulin concentration was estimated by the time-weighted average of the insulin concentration measured at 10 minute intervals in which time = 90, 100, 110, and 120 minutes. IGT was defined as a 2 hour plasma glucose >= 140 and <= 199 mg/dL during a 75g oral glucose tolerance test at screening.
90 -120 minutes post-dose
Part I: Change in the Ratio of Whole Body Glucose Disposal to Plasma Insulin at Steady State in Participants With Impaired Fasting Glucose (IFG)
Tidsramme: 90 -120 minutes post-dose
Steady state was defined as 90-120 minutes post-dose. The ratio was the quantity of glucose disposed by the body per kg body weight per minute at steady state divided by the approximate steady state plasma insulin concentration. The approximate steady state plasma insulin concentration was estimated by the time-weighted average of the insulin concentration measured at 10 minute intervals in which time = 90, 100, 110, and 120 minutes. IFG was defined as fasting plasma glucose (FPG) between 100 and 125 mg/dL at screening.
90 -120 minutes post-dose
Part I: Change in the Ratio of Whole Body Glucose Disposal to Plasma Insulin at Steady State in Participants With Normal Glucose Tolerant (NGT)
Tidsramme: 90 -120 minutes post-dose
Steady state was defined as 90-120 minutes post-dose. The ratio was the measure of the quantity of glucose disposed per unit of plasma insulin concentration (PIC). Approximate PIC was estimated by the time-weighted average of the insulin concentration measured at 10 minute intervals, time = 90, 100, 110, and 120 minutes. NGT participants (FPG <100 mg/dL & 2 hour PG <140 mg/dL during a 75g OGTT at screening) were neither IGT nor IFG at screening. IGT - defined as a 2 hour PG >= 140 and <= 199 mg/dL during a 75g OGTT at screening. IFG - defined as FPG between 100 and 125 mg/dL at screening.
90 -120 minutes post-dose

Samarbejdspartnere og efterforskere

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

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. marts 2009

Primær færdiggørelse (Faktiske)

1. februar 2010

Studieafslutning (Faktiske)

1. marts 2010

Datoer for studieregistrering

Først indsendt

27. marts 2009

Først indsendt, der opfyldte QC-kriterier

27. marts 2009

Først opslået (Skøn)

30. marts 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

28. juli 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. juli 2015

Sidst verificeret

1. juli 2015

Mere information

Begreber relateret til denne undersøgelse

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