PeRsOnalising Treatment Of Diabetic Nephropathy: (PROTON)
PeRsOnalising Treatment Of Diabetic Nephropathy: From Albuminuria to Multidimensional Characterisation of Diabetic Nephropathy - a Cross-sectional Study
Background: Today diabetic nephropathy is a frequent, and the most lethal and costly complication of diabetes. Although treating blood pressure with agents blocking renin angiotensin system has improved outcome, the prognosis is still poor and no new interventions have been successful during the past decade. There is an urgent need for discovery of new pathways behind the development and progression of diabetic nephropathy as well as of biomarkers which can identify subjects at risk of developing adverse events. Objective: By using a multidimensional 'omics' approach, we aim to search for novel proteins, metabolites and pathways that will point to the putative new mechanisms which underlie the early renal decline.
Design: Cross-sectional study, with long-term register-based follow-up. Study population: 160 patients with type 1 diabetes recruited from Steno Diabetes Center Copenhagen stratified based on stage of diabetic kidney disease, and 50 healthy non-diabetic controls. Endpoints: Primary endpoint: Glycocalyx thickness, assessed as perfused boundary region. Secondary endpoints: Gut microbiome characterisation and markers of gastrointestinal inflammation, autonomic and periphery neuropathy, urine and plasma Flow Cytometry Analysis (FACS), metabolomics and proteomics in plasma and urine, and other potential biomarkers.
Studieoversikt
Status
Detaljert beskrivelse
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
-
-
Copenhagen
-
Gentofte, Copenhagen, Danmark, 2820
- Steno Diabetes center
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- Patients with type 1 diabetes
- Written informed consent must be provided before participation
- Male or female patients >18 years of age with a diagnosis of type 1 diabetes (WHO criteria)
- Persistent urinary albumin creatinine ratio (UACR) assessed from EPJ (Electronic Patient Journal):
- < 30 mg/g in 2 out of 3 consecutive samples (normoalbuminuria)
- 30 - 299 mg/g in 2 out of 3 consecutive samples (microalbuminuria)
≥ 300 mg/g in 2 out of 3 consecutive samples (macroalbuminuria) - at least 30 with concurrent eGFR < 60 ml/min/1.73m2
2. Control subjects without diabetes
- Written informed consent must be provided before participation.
- Male or female patients >18 years of age without a diagnosis of diabetes (assessed by Hb1Ac, haemoglobin and creatinine)
Exclusion Criteria: (Both subjects with and without diabetes)
- Non-diabetic kidney disease as indicated by medical history and/or laboratory findings
- Renal failure (eGFR<15 ml/min/1.73m2), dialysis or kidney transplantation
- Change in RAAS blocking treatment during the last month
- Treatment with antibiotics during the last 2 month
- Pregnancy or breastfeeding (urine HCG is performed on all fertile women)
- Patients who, in the judgement of the investigator, is incapable to participate
- For controls: Other diseases or intake of medicine which in the judgement of the investigator could affect the results, specifically renal, cardiovascular or inflammatory/infectious diseases should be considered for exclusion
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
|---|
|
Type 1 DM, Normo albuminuric
Type 1 diabetics with no history of albumnuria (UACR < 30 mg/g in 2 out of 3 consecutive samples)
|
|
Type 1 DM, Micro albuminuric
Type 1 diabetics with history of micro albumnuria (UACR 30-299 mg/g in 2 out of 3 consecutive samples)
|
|
Type 1 DM, Macro albuminuric
Type 1 diabetics with history of macro albumnuria (UACR 30-299 mg/g in 2 out of 3 consecutive samples)
|
|
Healthy subjects
Subjects with no history of diabetes, other diseases or intake of medicine which in the judgement of the investigator could affect the results, specifically renal, cardiovascular or inflammatory/infectious diseases should be considered for exclusion.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
The microvascular function by estimating the glycocalyx thickness
Tidsramme: 2019
|
Glycocalyx thickness assessed as perfused boundary region by a hand-hold camera (GlycoCheck)
|
2019
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Gut microbiome
Tidsramme: 2019
|
Characterisation of the gut microbiota and markers of gastrointestinal inflammation
|
2019
|
|
Urine and plasma Flow Cytometry Analysis (FACS)
Tidsramme: 2019
|
cell types related to inflammation
|
2019
|
|
Metabolomics in plasma
Tidsramme: 2019
|
metabolite risk score in plasma
|
2019
|
|
Metabolomics in urine
Tidsramme: 2019
|
metabolite risk score in urine
|
2019
|
|
proteomics in urine
Tidsramme: 2019
|
proteomic risk score in urine
|
2019
|
|
proteomics in plasma
Tidsramme: 2019
|
proteomic risk score in plasma
|
2019
|
|
Autonomic neuropathy
Tidsramme: 2019
|
beat to beat variation (R-R test) upon Deep breathing
|
2019
|
|
peripheral neuropathy
Tidsramme: 2019
|
vibration perception threshold
|
2019
|
Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Studiestol: peter Rossing, Steno Diabetes Center Copenhagen
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 36000
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Studerer et amerikansk FDA-regulert enhetsprodukt
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. .
Kliniske studier på Diabetes komplikasjoner
-
Biotronik AGFullførtPerifer arteriesykdom | Access Site Complication | Poliklinisk behandlingFrankrike, Østerrike, Belgia, Sveits
-
Kahramanmaras Sutcu Imam UniversityFullførtOvervekt, sykelig | Peroperativ komplikasjon | BMD | Laparascopic Sleeve Gastrectomy | Fedmekirurgi Dødelighetspoeng | Clavien Dindo Surgical Complication Scale