- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT00891995
Effect of Metabolic Control at Onset of Diabetes on Progression of Type 1 Diabetes
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
The specific aim of this study is to determine if early restoration of metabolic control will improve C-peptide production compared to children receiving routine diabetes management and the secondary aim is to determine if allowing the islet cells to be less metabolically active will have an impact on the underlying autoimmune process.
Following completion of the baseline procedures (Mixed Meal Tolerance Test and blood sample collection), participants are randomized to either the Standard Treatment Group or the Intensive Treatment Group which includes 4-6 days of inpatient closed loop therapy followed by outpatient use of an insulin pump and continuous glucose monitor for diabetes management.
All subjects will be seen 7 times in the first year and 4 times in the second year for follow-up testing. Subjects who are still producing insulin after 2 years may be asked to return every 6 months for an additional 2 years.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 2
- Fase 3
Contacten en locaties
Studie Locaties
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California
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Stanford, California, Verenigde Staten, 94305
- Stanford University
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Colorado
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Aurora, Colorado, Verenigde Staten, 80010
- Barbara Davis Center for Childhood Diabetes
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Connecticut
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New Haven, Connecticut, Verenigde Staten, 06519
- Yale University
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Indiana
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Indianapolis, Indiana, Verenigde Staten, 46202
- Indiana University
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Tennessee
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Nashville, Tennessee, Verenigde Staten, 37232
- Vanderbilt University
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Age 6.0 to <46.0 years
- Diagnosis of type 1 diabetes with initiation of insulin therapy within past 7 days (day 1 being the first day of insulin therapy)
- If participant is female with reproductive potential, willing to avoid pregnancy and pregnancy test negative.
- Willing to accept randomization to either the intensive diabetes management group or the standard care group.
- Willing to complete the planned 2 years of follow-up.
- Able to electronically transmit data monthly.
- Investigator believes that the participant (and parent/guardian for children) understands and agrees to comply with the study protocol and is capable of undertaking all necessary testing.
Exclusion Criteria:
- Currently pregnant or lactating, or anticipate getting pregnant in the next one year.
- Currently anemic (hematocrit level will be obtained at the screening visit).
- Chronic use of systemic steroids or other noninsulin pharmaceuticals that might affect glycemic control or the presence of a disease that is likely to be treated with such medications during the first two years of the study.
- Complicating medical issues that might interfere with study conduct.
- Inpatient psychiatric treatment in the past 6 months (if the participant is a minor, for either the participant or the participant's primary care giver).
- Currently participating in another type 1 diabetes treatment study, including an intervention trial for treatment of diabetic ketoacidosis.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: Intensive Treatment
closed loop therapy (4-6 days), insulin pump (2 years), continuous glucose monitoring (2 years), home glucose monitoring (2 years)
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Closed loop therapy for up to 4 to 6 days
Standard diabetes management using a home glucose meter.
Insulin pump use for 2 years
Continuous glucose monitor use for 2 years
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Actieve vergelijker: Standard Treatment
home glucose monitoring (2 years)
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Standard diabetes management using a home glucose meter.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
C-peptide Average Area Under the Curve (AUC) in Response to a Mixed Meal at 1 Year Following Enrollment.
Tijdsspanne: At baseline, MMTT data were collected at 0 and 90 min; at 12 months, MMTT data were collected at 0 to 240 min post meal
|
In the primary analysis of the 12-month Mixed-Meal Tolerance Test (MMTT) results, the geometric mean (95% C.I.) of C-peptide average AUC (=AUC/time) was 0.43 (0.34, 0.52) pmol/ml in the intensive treatment group and 0.52 (0.32, 0.75) pmol/ml in the usual care group (P=0.49).
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At baseline, MMTT data were collected at 0 and 90 min; at 12 months, MMTT data were collected at 0 to 240 min post meal
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
HbA1c
Tijdsspanne: 1 jaar
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1 jaar
|
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Peak C-peptide in Response to a Mixed Meal at 1 Year Following Enrollment
Tijdsspanne: 0 to 240 min post meal at 1 year MMTT
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0 to 240 min post meal at 1 year MMTT
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Incidence of the Loss of the 2 Hour Peak C-peptide < 0.2 Pmol/ml on a Semi-annual MMTT
Tijdsspanne: 0 to 240 min post meal at 1 year MMTT
|
Outcome measure in the table is the incidence of 2 hour peak C-peptide>=0.2
pmol/ml.
Since the formal clinical trial stopped at 12 months due to lack of efficiency (later follow-up were used to collect data for secondary analyses by pooling the two groups), only the outcome at 12 months are reported.
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0 to 240 min post meal at 1 year MMTT
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Adverse Events (Severe Hypoglycemia)
Tijdsspanne: 1 year
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1 year
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CGM Mean Glucose
Tijdsspanne: 1 year
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1 year
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CGM Measured Glucose Outcomes
Tijdsspanne: 1 year
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Include a series of glucose indices created from CGM measured glucose data, such as % time with glucose values <=70 mg/dl, % time with glucose values within target range of 71-180 mg/dl, % time with glucose values >180 mg/dl, and glucose variability as measured by coefficient of variation.
These indices were calculated by giving equal weight to each of the 24 h of the day.
At least 24 h of CGM data were required for calculating these indices.
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1 year
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Daily Insulin Dose
Tijdsspanne: 1 year
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1 year
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BMI Percentile
Tijdsspanne: 1 year
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1 year
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Jay S. Skyler, M.D., M.A.C.P., University of Miami
Publicaties en nuttige links
Algemene publicaties
- Buckingham B, Beck RW, Ruedy KJ, Cheng P, Kollman C, Weinzimer SA, DiMeglio LA, Bremer AA, Slover R, Tamborlane WV; Diabetes Research in Children Network (DirecNet) Study Group; Type 1 Diabetes TrialNet Study Group. Effectiveness of early intensive therapy on beta-cell preservation in type 1 diabetes. Diabetes Care. 2013 Dec;36(12):4030-5. doi: 10.2337/dc13-1074. Epub 2013 Oct 15.
- Diabetes Research in Children Network (DirecNet) Study Group; Type 1 Diabetes TrialNet Study Group; Buckingham BA, Beck RW, Ruedy KJ, Cheng P, Kollman C, Weinzimer SA, DiMeglio LA, Bremer AA, Slover R, Cantwell M. The effects of inpatient hybrid closed-loop therapy initiated within 1 week of type 1 diabetes diagnosis. Diabetes Technol Ther. 2013 May;15(5):401-8. doi: 10.1089/dia.2013.0002. Epub 2013 Apr 9.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- DirecNet 012
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