Effect of Metabolic Control at Onset of Diabetes on Progression of Type 1 Diabetes
9. november 2016 oppdatert av: Jaeb Center for Health Research
The purpose of this study is to find out if very tight blood glucose control from the onset of Type 1 Diabetes can preserve beta cell function.
Study subjects will be randomly assigned to receive either standard diabetes management or intensive diabetes management, which involves several days of closed loop therapy followed by home use of a continuous glucose monitor and insulin pump.
Studieoversikt
Status
Avsluttet
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
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
Intervensjonell
Registrering (Faktiske)
71
Fase
- Fase 2
- Fase 3
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
-
-
California
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Stanford, California, Forente stater, 94305
- Stanford University
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Colorado
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Aurora, Colorado, Forente stater, 80010
- Barbara Davis Center for Childhood Diabetes
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Connecticut
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New Haven, Connecticut, Forente stater, 06519
- Yale University
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Indiana
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Indianapolis, Indiana, Forente stater, 46202
- Indiana University
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Tennessee
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Nashville, Tennessee, Forente stater, 37232
- Vanderbilt University
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
6 år til 45 år (Barn, Voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
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.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: Intensive Treatment
closed loop therapy (4-6 days), insulin pump (2 years), continuous glucose monitoring (2 years), home glucose monitoring (2 years)
|
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
|
|
Aktiv komparator: Standard Treatment
home glucose monitoring (2 years)
|
Standard diabetes management using a home glucose meter.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
C-peptide Average Area Under the Curve (AUC) in Response to a Mixed Meal at 1 Year Following Enrollment.
Tidsramme: 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).
|
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
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
HbA1c
Tidsramme: 1 år
|
1 år
|
|
|
Peak C-peptide in Response to a Mixed Meal at 1 Year Following Enrollment
Tidsramme: 0 to 240 min post meal at 1 year MMTT
|
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
Tidsramme: 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.
|
0 to 240 min post meal at 1 year MMTT
|
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Adverse Events (Severe Hypoglycemia)
Tidsramme: 1 year
|
1 year
|
|
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CGM Mean Glucose
Tidsramme: 1 year
|
1 year
|
|
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CGM Measured Glucose Outcomes
Tidsramme: 1 year
|
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.
|
1 year
|
|
Daily Insulin Dose
Tidsramme: 1 year
|
1 year
|
|
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BMI Percentile
Tidsramme: 1 year
|
1 year
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Hovedetterforsker: Jay S. Skyler, M.D., M.A.C.P., University of Miami
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
- 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.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. september 2010
Primær fullføring (Faktiske)
1. oktober 2013
Studiet fullført (Faktiske)
1. oktober 2013
Datoer for studieregistrering
Først innsendt
30. april 2009
Først innsendt som oppfylte QC-kriteriene
30. april 2009
Først lagt ut (Anslag)
1. mai 2009
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
30. desember 2016
Siste oppdatering sendt inn som oppfylte QC-kriteriene
9. november 2016
Sist bekreftet
1. november 2016
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- DirecNet 012
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .