Beta Cell Function in (Pre) Type 1 Diabetes
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Fase
Fase
- Fase 2
- Fase 1
Kontakter og lokationer
Studiesteder
-
-
-
Antwerpen, Belgien
- Universitair Ziekenhuis Antwerpen
-
Brussels, Belgien, 1090
- UZ Brussels
-
Gent, Belgien, 9000
- UZ Gent
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Leuven, Belgien, 3000
- UZ Leuven
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
The following groups of first degree relatives of type1 diabetes patients with normal glucose tolerance during OGTT (5-39 years) will be included after informed consent on the basis of their antibody status (n = 40 per group):
- IA-2A-positives;
- Ab.-positives (positive for at least 2 different Abs. (IAA, GADA and/or ICA) and/or persistently Ab.-positive for 1 of these Abs;
- persistently Ab.-negatives.
- 40 type 1 diabetes patients with the following criteria will be studied: 1) aged 12-39 years; 2) < 4 weeks of insulin treatment; 3) auto-Ab.-positive; 4) polyuria since < 6 months; 5) < 10% weight loss over the last 6 months; 6) informed consent.
Exclusion Criteria:
- Pregnancy or lactation in women
- Use of illicit drugs or overconsumption of alcohol (> 3 beers/day) or history of drug or alcohol abuse
- Being legally incapacitated, having significant emotional problems at the time of the study, or having a history of psychiatric disorders
- Having received antidepressant medications during the last 6 months
- Treatment with immune modulating or diabetogenic medication (such as corticosteroids)
- Presently participating in another clinical study
- History of any illness that, in the opinion of the investigator, might confound the results of the study or pose additional risks to the subjects
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Ingen indgriben: FDR of type 1 diabetes patients receiving glucose 20%
First Degree Relatives of diabetes type 1 patient with a high, intermedian or low risk (accoring to the criteria of the protocol), for developing diabetes type 1.
|
maintain glycemia at 180 mg/dL till 150 min.
after start glucose infusion: with a maintenance dose computed at 5- to 10-minute intervals
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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The systematic and simultaneous determination of markers of functional beta cell mass and immune status allows stratification according to the stage of the pathogenic process rather than according to a late metabolic consequence of this process
Tidsramme: 48 months
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48 months
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: katelijn Decochez, MD PhD, UZ Brussels
Publikationer og nyttige links
Generelle publikationer
- DeFronzo RA, Tobin JD, Andres R. Glucose clamp technique: a method for quantifying insulin secretion and resistance. Am J Physiol. 1979 Sep;237(3):E214-23. doi: 10.1152/ajpendo.1979.237.3.E214.
- Decochez K, De Leeuw IH, Keymeulen B, Mathieu C, Rottiers R, Weets I, Vandemeulebroucke E, Truyen I, Kaufman L, Schuit FC, Pipeleers DG, Gorus FK; Belgian Diabetes Registry. IA-2 autoantibodies predict impending type I diabetes in siblings of patients. Diabetologia. 2002 Dec;45(12):1658-66. doi: 10.1007/s00125-002-0949-8. Epub 2002 Nov 12.
- Gorus FK, Goubert P, Semakula C, Vandewalle CL, De Schepper J, Scheen A, Christie MR, Pipeleers DG. IA-2-autoantibodies complement GAD65-autoantibodies in new-onset IDDM patients and help predict impending diabetes in their siblings. The Belgian Diabetes Registry. Diabetologia. 1997 Jan;40(1):95-9. doi: 10.1007/s001250050648.
- Achenbach P, Warncke K, Reiter J, Naserke HE, Williams AJ, Bingley PJ, Bonifacio E, Ziegler AG. Stratification of type 1 diabetes risk on the basis of islet autoantibody characteristics. Diabetes. 2004 Feb;53(2):384-92. doi: 10.2337/diabetes.53.2.384. Erratum In: Diabetes. 2004 Apr;53(4):1175-6.
- Bingley PJ, Gale EA; European Nicotinamide Diabetes Intervention Trial (ENDIT) Group. Progression to type 1 diabetes in islet cell antibody-positive relatives in the European Nicotinamide Diabetes Intervention Trial: the role of additional immune, genetic and metabolic markers of risk. Diabetologia. 2006 May;49(5):881-90. doi: 10.1007/s00125-006-0160-4. Epub 2006 Mar 3.
- Maclaren N, Lan M, Coutant R, Schatz D, Silverstein J, Muir A, Clare-Salzer M, She JX, Malone J, Crockett S, Schwartz S, Quattrin T, DeSilva M, Vander Vegt P, Notkins A, Krischer J. Only multiple autoantibodies to islet cells (ICA), insulin, GAD65, IA-2 and IA-2beta predict immune-mediated (Type 1) diabetes in relatives. J Autoimmun. 1999 Jun;12(4):279-87. doi: 10.1006/jaut.1999.0281.
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- KD_BF_01
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