- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT00729365
PREVENTKD (Prevent Risks by Early interVEntion at Nighttime in Type 1 Diabetes for Kidney Disease) (PREVENTKD)
Nocturnal Hypertension and Prevention of Microalbuminuria in Type 1 Diabetes
Přehled studie
Postavení
Podmínky
Intervence / Léčba
Detailní popis
Only a fraction of persons with Type 1 diabetes (less than 40%) develop diabetic kidney disease (nephropathy). When the urinary albumin (a protein normally excreted in small amounts) is within the normal range, the prevalence of high blood pressure (hypertension) based on office blood pressure readings is very low. Many of these persons, however, develop nocturnal hypertension (high nighttime blood pressure) before the development of abnormally high urinary albumin excretion (a condition referred to as microalbuminuria). Currently, early treatment with medications called ACE inhibitors is only recommended after there is an indication of kidney damage, as reflected by the presence of microalbuminuria. Beginning ACE inhibitor therapy is currently not recommended prior to the development of microalbuminuria, unless patients have high blood pressure, because it would result in over-treatment of many people. By the time that microalbuminuria develops, however, kidney damage may be present and many patients will develop kidney disease. It would therefore be beneficial to identify those subjects who will develop microalbuminuria, so that treatment could be started early for those individuals. Persons who may go on to develop protein in their urine and eventual kidney disease perhaps could be identified on the basis of an abnormal fall (too little) in blood pressure at night. This pattern should not be confused with high blood pressure, but instead seen as an early indication present before the development of high blood pressure and microalbuminuria.
The purpose of the current study is therefore aimed at demonstrating that it is possible to prevent kidney disease in patients with type 1 diabetes and normal office blood pressure and urine protein excretion by selecting them on the basis of an abnormal fall in blood pressure at night. Moreover, this clinical trial will reveal the impact of long-term administration of an ACE inhibitor on nighttime blood pressure and also assess changes in the relative stiffness of blood vessels(endothelial dysfunction) in persons with type 1 diabetes over time.
Typ studie
Zápis (Aktuální)
Fáze
- Fáze 3
Kontakty a umístění
Studijní místa
-
-
Florida
-
Gainesville, Florida, Spojené státy, 32611
- University of Florida
-
-
Illinois
-
Chicago, Illinois, Spojené státy, 60612
- University of Illinois at Chicago
-
Chicago, Illinois, Spojené státy, 60637
- University of Chicago
-
Chicago, Illinois, Spojené státy, 60611
- Northwestern University Feinberg School of Medicine
-
Chicago, Illinois, Spojené státy, 60612
- Rush University Medical Center, Endocrinology Section
-
Maywood, Illinois, Spojené státy, 60153
- Loyola University Chicago
-
-
Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
Přijímá zdravé dobrovolníky
Pohlaví způsobilá ke studiu
Popis
Inclusion Criteria:
- Subjects with type 1 diabetes confirmed by C peptide measurements.
- Male and Female subjects of all races will be included in this study.
- Subjects age must be between 13 to 50 years
- Duration of the disease (from time of diagnosis of diabetes) must be between 5 to 28 years.
- Subjects must be normotensive defined as a systolic blood pressure of ≤ 130 mmHg and diastolic of ≤ 85 mmHg in subjects 18 and older and for children (ages 13-17) blood pressure will be in the normal range based on standard tables which takes in to account gender, height and age.
- The mean 24 blood pressure must meet the same criteria as the office blood pressures outlined above.
- Subject must have normoalbuminuria (UAE < 30 mg/24 hrs)
- If subject is a female she must not be breast-feeding, and not of child-bearing potential, defined as post-menopausal for at least 1 year or surgically sterile; if she is of child bearing potential, then she must be practicing one of the following methods of birth control: 1) condoms, sponge, foams, jellies, diaphragm or intrauterine device (IUD), 2) contraceptives (oral or parenteral) initiated three months prior to study drug administration, 3) maintain a monogamous relationship with a vasectomized partner, or 4) total abstinence from sexual intercourse.
Exclusion Criteria:
- Type 2 diabetics and other types of diabetics such as those with maturity onset diabetes or the young (MODY) will be excluded on the basis of established clinical criteria.
- Subjects who have a history of hypertension or is taking any hypertensive medications.
- Females who are pregnant or express a desire to become pregnant during the study. Females who are breast-feeding. Refer to details in inclusion criteria above regarding females.
- Subjects who have a history of taking ACE inhibitors within the last six months or have a current indication for ACE inhibitor therapy.
- Subjects (18 years of age and over) with a current blood pressure above 130mmHg/85mmHg. Subjects (13-17 years of age) who do not meet the normal range based on the standard tables
- Subjects who are currently microalbuminuric i.e. 24hr albumin > 30mg
- Subjects who have participated in an interventional clinical trial involving ABPM 6 months prior to this study.
- Subjects that have a diagnosis of chronic atrial fibrillation.
- Subjects with a lifestyle that would disrupt normal circadian rhythm (i.e. night-shift workers).
- Subjects with a current serious co-morbid condition for which life expectancy is <2 years.
- Subjects with a history of non-compliance, or psychiatric disturbance that would preclude successful completion of the study.
- Inability to give informed consent.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Prevence
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Čtyřnásobek
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
---|---|
Komparátor placeba: Dippers - Placebo Treated
Subjects with normal nighttime blood pressure profile that decreases at night (Dippers).
This group are all given placebo.
|
Dippers (category of subjects with a nighttime dip in blood pressure) will all be given Placebo.
Control group.
Subjects with nighttime blood pressure that does not drop during the night ("non-dippers") maybe randomized into the control group and given Placebo.
|
Komparátor placeba: NonDippers - Placebo Treated
Subjects with nighttime blood pressure that does not drop during the night (non-dippers).
This group will be given placebo.
|
Dippers (category of subjects with a nighttime dip in blood pressure) will all be given Placebo.
Control group.
Subjects with nighttime blood pressure that does not drop during the night ("non-dippers") maybe randomized into the control group and given Placebo.
|
Aktivní komparátor: NonDippers - Ramipril Treated
Subjects with nighttime blood pressure that does not drop during the night (non-dippers).
This group will be given ACE inhibitor (study medication).
|
ACE inhibitor known as Ramipril Subjects with nighttime blood pressure that does not drop during the night ("non-dippers") maybe randomized into this group and given an ACE inhibitor (study medication). Therefore, the "Non-Dippers" groups II and III will be randomized to receive either drug or placebo.
Ostatní jména:
|
Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Časové okno |
---|---|
Development of Microalbuminuria (High Urine Albumin). Hypertension, Urine and Blood Markers Will Also be Evaluated for Assessment of Kidney Disease State.
Časové okno: at 3months and then every 6months during the 5years of the study
|
at 3months and then every 6months during the 5years of the study
|
Sekundární výstupní opatření
Měření výsledku |
Časové okno |
---|---|
We Will Assess Changes in the Relative Stiffness of Your Arteries (Endothelial Dysfunction) in Persons With Type 1 Diabetes Over the 5year Study.
Časové okno: year 1, 3, 5 and after the washout phase (5years and 1month)
|
year 1, 3, 5 and after the washout phase (5years and 1month)
|
Spolupracovníci a vyšetřovatelé
Sponzor
Spolupracovníci
Vyšetřovatelé
- Vrchní vyšetřovatel: Mark E Molitch, MD, Professor of Medicine
Publikace a užitečné odkazy
Obecné publikace
- Haller MJ, Stein J, Shuster J, Theriaque D, Silverstein J, Schatz DA, Earing MG, Lerman A, Mahmud FH. Peripheral artery tonometry demonstrates altered endothelial function in children with type 1 diabetes. Pediatr Diabetes. 2007 Aug;8(4):193-8. doi: 10.1111/j.1399-5448.2007.00246.x.
- Dolan E, Stanton A, Thijs L, Hinedi K, Atkins N, McClory S, Den Hond E, McCormack P, Staessen JA, O'Brien E. Superiority of ambulatory over clinic blood pressure measurement in predicting mortality: the Dublin outcome study. Hypertension. 2005 Jul;46(1):156-61. doi: 10.1161/01.HYP.0000170138.56903.7a. Epub 2005 Jun 6.
- Lurbe E, Redon J, Kesani A, Pascual JM, Tacons J, Alvarez V, Batlle D. Increase in nocturnal blood pressure and progression to microalbuminuria in type 1 diabetes. N Engl J Med. 2002 Sep 12;347(11):797-805. doi: 10.1056/NEJMoa013410.
- Lurbe A, Redon J, Pascual JM, Tacons J, Alvarez V, Batlle DC. Altered blood pressure during sleep in normotensive subjects with type I diabetes. Hypertension. 1993 Feb;21(2):227-35. doi: 10.1161/01.hyp.21.2.227.
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia
Primární dokončení (Aktuální)
Dokončení studie (Aktuální)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Odhad)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Odhad)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
- Poruchy metabolismu glukózy
- Metabolické choroby
- Onemocnění imunitního systému
- Autoimunitní onemocnění
- Onemocnění endokrinního systému
- Diabetes Mellitus
- Diabetes mellitus, typ 1
- Molekulární mechanismy farmakologického působení
- Antihypertenziva
- Inhibitory enzymů
- Inhibitory proteázy
- Ramipril
- Inhibitory enzymu konvertujícího angiotensin
Další identifikační čísla studie
- 1U01DK071733-01A1 (Grant/smlouva NIH USA)
Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .
Klinické studie na Diabetes typu 1
-
Institute of Child HealthGreat Ormond Street Hospital for Children NHS Foundation TrustZatím nenabíráme
-
NYU Langone HealthNational Heart, Lung, and Blood Institute (NHLBI)Nábor
-
Hoffmann-La RocheDokončenoDiabetes 2. typu, Diabetes 1. typuRakousko, Spojené království
-
Oshadi Drug AdministrationDokončenoDiabetes Mellitus | Závislá na inzulínu | Typ 1Izrael
-
Duke UniversityDokončenoHyperglykémie | Kardiovaskulární onemocnění | Diabetes, typ 2 | Diabetes, typ 1Spojené státy
-
Technical University of MunichLudwig-Maximilians - University of Munich; Technische Universität Dresden; Helmholtz...Aktivní, ne nábor
-
University of California, San FranciscoJuvenile Diabetes Research FoundationDokončenoDiabetes mellitus 1. typu | Diabetes Mellitus, typ I | Diabetes mellitus závislý na inzulínu 1 | Diabetes Mellitus, závislý na inzulínu, 1 | IDDMSpojené státy, Austrálie
-
Capillary Biomedical, Inc.UkončenoDiabetes typu 1 | Diabetes mellitus 1. typu | Diabetes Mellitus, typ I | Diabetes Mellitus, závislý na inzulínu, 1 | IDDMRakousko
-
KU LeuvenDokončeno
-
Zhejiang Provincial People's HospitalZatím nenabírámeCukrovka typu 2 | diabetes typu 1Čína