- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01741064
Morbidity Related to Secondary Hyperparathyroidism After Renal Transplantation (SHPT-RT)
3. december 2012 opdateret af: Gunnar Sterner, Skane University Hospital
Secondary Hyperparathyroidism Related Vascular and Bone Morbidity After Renal Transplantation - a 6 Year Follow up Retrospective Cohort Study.
The purpose of the study is to evaluate the long term vascular morbidity and mortality in kidney transplant recipients based on one year post transplant levels of intact parathyroid hormone.
Studieoversigt
Status
Afsluttet
Detaljeret beskrivelse
Secondary hyperparathyroidism (SHPT) is a well known complication to chronic renal failure.
With impaired renal function the phosphate excretion from the kidney is reduced.
Together with low levels of 25- and 1,25-vitamin D3 and hypocalcemia this uremic mineral milieu drives the release of parathyroid hormone (PTH) and the development of SHPT.
PTH has many functions but acts mainly to release calcium from the skeleton, to enhance calcium uptake from the intestines (by actions on vitamin D) and to lower serum phosphate by inducing phosphaturia.
SHPT has been shown to cause vascular morbidity and fractures in the chronic kidney disease (CKD) patient.
After successful renal transplantation (RT) the mineral disturbances are mostly recovered and stabilized at one year post RT, but in recent years it has been shown that SHPT persists in the major part of RT-recipients even after long term follow up.
This has been associated with high risk of fractures and vascular related morbidity in the post transplant period.
It has also been shown that low levels of iPTH in the post-transplant period might be associated with a high risk of fractures.
Because of insufficient data on PTH levels and associated morbidity there is no specific recommendations of target PTH levels in the RT-patient.
This indicates that there is need for further observational studies to describe the SHPT-associated morbidity in a post transplant cohort based on stabilized levels of post transplant iPTH.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
257
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år til 85 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Sandsynlighedsprøve
Studiebefolkning
All patients who underwent renal transplantation surgery between January 1:st 2003 to December 31:st 2005 at Skane University Hospital or Karolinska University Hospital.
Beskrivelse
Inclusion Criteria:
- Between 18-85 years at date of transplantation
- Signed informed consent or deceased at time of data collection
Exclusion Criteria:
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
---|
PTH below target iPTH in CKD
iPTH at one year post transplantation below target range of iPTH by stage of CKD (KDOQI-guidelines).
|
iPTH within target range of iPTH in CKD
iPTH at one year post transplantation within target range of iPTH by stage of CKD (KDOQI-guidelines).
|
iPTH above target range of iPTH in CKD
iPTH at one year post transplantation above target range of iPTH by stage of CKD (KDOQI-guidelines).
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
First Vascular Event
Tidsramme: From date of transplantation to event up to 72 months
|
Vascular events defined as (Myocardial infarction, Stroke, Peripheral Vascular Occlusion)
|
From date of transplantation to event up to 72 months
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Loss of Graft Function
Tidsramme: From date of transplantation to event up to 72 months
|
Start in Active Uremic Treatment (dialysis, renal transplantation)
|
From date of transplantation to event up to 72 months
|
Overall Mortality
Tidsramme: Fram date of transplantation to event up to 72 months
|
Mortality
|
Fram date of transplantation to event up to 72 months
|
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
First Fracture
Tidsramme: From date of transplantation to event up to 72 months
|
Fracture verified by x-ray
|
From date of transplantation to event up to 72 months
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Samarbejdspartnere
Efterforskere
- Studieleder: Gunnar Sterner, MD A/Prof, Dept of Nephrology and Transplantation Skane University Hospital Malmo
- Studiestol: Astrid Seeberger, PhD, A/Prof, ´Dept of nephrology, Karolinska University Hospital Huddinge, Stockholm
- Studiestol: Elin Isaksson, MD, Dept of Nephrology and Transplantation Skane University Hosptial Malmö
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Isaksson E, Sterner G. Early development of secondary hyperparathyroidism following renal transplantation. Nephron Clin Pract. 2012;121(1-2):c68-72. doi: 10.1159/000342811. Epub 2012 Oct 27. Erratum In: Nephron Clin Pract. 2012;121(3-4):c111.
- Kanaan N, Claes K, Devogelaer JP, Vanderschueren D, Depresseux G, Goffin E, Evenepoel P. Fibroblast growth factor-23 and parathyroid hormone are associated with post-transplant bone mineral density loss. Clin J Am Soc Nephrol. 2010 Oct;5(10):1887-92. doi: 10.2215/CJN.00950110. Epub 2010 Jul 15.
- Goldsmith D, Kothawala P, Chalian A, Bernal M, Robbins S, Covic A. Systematic review of the evidence underlying the association between mineral metabolism disturbances and risk of fracture and need for parathyroidectomy in CKD. Am J Kidney Dis. 2009 Jun;53(6):1002-13. doi: 10.1053/j.ajkd.2009.02.010.
- Evenepoel P, Meijers BK, de Jonge H, Naesens M, Bammens B, Claes K, Kuypers D, Vanrenterghem Y. Recovery of hyperphosphatoninism and renal phosphorus wasting one year after successful renal transplantation. Clin J Am Soc Nephrol. 2008 Nov;3(6):1829-36. doi: 10.2215/CJN.01310308. Epub 2008 Oct 15.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. februar 2012
Primær færdiggørelse (Faktiske)
1. oktober 2012
Studieafslutning (Faktiske)
1. oktober 2012
Datoer for studieregistrering
Først indsendt
30. november 2012
Først indsendt, der opfyldte QC-kriterier
3. december 2012
Først opslået (Skøn)
4. december 2012
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
4. december 2012
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
3. december 2012
Sidst verificeret
1. november 2012
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- SHPTTX-002
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .