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- Klinische proef NCT00222508
The Microvascular Complications Study
Microvascular Complications of Cystic Fibrosis Related Diabetes
Studie Overzicht
Toestand
Gedetailleerde beschrijving
Microvascular complications of diabetes such as eye, kidney and nerve disease are common in individuals with type 1 and type 2 diabetes, and are a source of significant morbidity and mortality. Microvascular diabetes complications have been anecdotally reported in cystic fibrosis related diabetes (CFRD), but their prevalence is unknown. 40% of adult CF patients have CFRD, which shares features of both type 1 and type 2 diabetes but is a distinct clinical entity (1). Many clinicians are reluctant to add the burden of aggressive diabetes management to the already complex medical regimen of these patients. It is sometimes stated that they will not live long enough to develop complications of diabetes. However, longevity in CF has dramatically increased, and many patients now live into their thirties, forties, and fifties. As they live longer, it becomes increasingly likely that at least some will develop diabetes complications. A better understanding of this negative outcome would help resolve the question of whether aggressive screening and management of diabetes is necessary in CF.
As in other forms of diabetes, duration of diabetes and the magnitude of chronic hyperglycemia are probably important determinants of microvascular complications in CFRD. This information is not usually known at the time of presentation of CFRD because of the insidious onset of the disease. Theoretically, CF pulmonary disease, including chronic hypoxia and venous congestion related to pulmonary hypertension, may additionally aggravate microvascular changes. However, the metabolic differences between CFRD and type 1 and type 2 diabetes may also serve to protect CF patients from some diabetes complications. At the time diabetes complications develop, patients with type 1 and type 2 diabetes tend to have concomitant obesity, hypertension, insulin resistance, hyperlipidemia and atherosclerotic cardiovascular disease. These factors, which are generally absent in CF, may contribute to the pathophysiology of microvascular complications in other forms of diabetes.
The University of Minnesota CF Center is in the unique position of having a well-characterized diabetes population, since diabetes screening was instituted several years ago as part of routine annual CF studies. In our population of 450 CF patients, 113 have been diagnosed with diabetes, and the remainder are known to have either normal or impaired glucose tolerance. In addition to our CFRD experience, the University of Minnesota has a strong background of experience in large population-based screening and intervention trials concerning diabetes complications. Not only were we a participating center in the NIH-sponsored multi-center Diabetes Control and Complications Trial (DCCT) (2) and the current DCCT follow-up Epidemiology of Diabetes Interventions and Complications trial (EDIC), but our laboratory was central reference laboratory for the DCCT and EDIC. Thus, our physicians, nurses, biostatisticians, GCRC staff and laboratory staff are all quite knowledgeable and experienced in the methods to be used in the present application.
Studietype
Inschrijving (Verwacht)
Contacten en locaties
Studie Locaties
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Minnesota
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Minneapolis, Minnesota, Verenigde Staten, 55455
- University of Minnesota
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
CFRD patients with and without fasting hyperglycemia
Exclusion Criteria:
None
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Tijdsperspectieven: Prospectief
Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Antoinette Moran, MD, University of Minnesota
Studie record data
Bestudeer belangrijke data
Studie start
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
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Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 0012M75862
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