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Tolerance to Hemodialysis in Insulin-Requiring Diabetic Patients: BD vs AFB With Blood Volume Biofeedback (THIRD)

1. april 2010 opdateret af: Università degli Studi di Brescia

Tolerance to Hemodialysis in Insulin-Requiring Diabetic Patients: a Prospective Randomized,Cross-over Multicenter Study Between Bicarbonate Dialysis (BD) and Blood Volume Controlled Acetate-Free Biofiltration (BVC-AFB)

Diabetic nephropathy is becoming the most common primary renal disease in end stage renal disease patients. The prevalence of diabetic patients in dialysis reaches even the 30% of the dialysis population (USRDS) with an incidence rate, in some countries, up to 40%. The 5 years surviving time of diabetic patients in dialysis is about the 20% and, compared to the hypertension and glomerulonephritis complications, still remains the worst. Diabetes is often associated to several comorbid factors such as hypertension, autonomic neuropathy, vasculopathy, metabolic disorders (ketoacidosis, poor glycaemic control), and electrolyte disorders. So, the diabetic patient is fragile, with a rather poor tolerance to dialysis, lack of achievement of dry body weight and inadequate dialysis. In order to gain a more detailed insight into a possible better tolerance to dialysis, arising from the elimination of acetate in dialysate bath (Acetate Free Biofiltration) and from the use of an automatic system to control the blood volume (Blood Volume Control),the investigators would like to investigate the cardiovascular stability and the frequency of intradialytic symptoms in a prospective, randomized, cross-over study.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Acetate-Free-Biofiltration (AFB) was proved to be a technique suitable to treat critical patients, such as elders and diabetics, because of frequency reduction of hypotensive episodes and symptoms during the treatment and a better control to metabolic aspects (such as metabolic acidosis).

The Blood Volume Control (BVC) is a tool, that allows to improve the cardiovascular tolerance to the treatment, especially in hypotension-prone patients, appearing promising in the correction of the arterial hypertension induced by the hydro-saline overload.

The use of BVC in AFB has been tested to verify the behaviour of the kinetics of electrolyte (in particular of bicarbonate) and it has got good results, in terms of a further improvement in treatment tolerance, for critical patients However, this therapy (AFB+BVC) was not yet evaluated as the dialysis tolerance improvement in diabetics concern, nor the relative contribution given by each factor in achieving this result.

The study, 9 months long, is aimed to verify the treatment tolerance of insulin requiring diabetic patients, by using standard bicarbonate dialysis (BD), or Acetate Free Biofiltration (AFB) and/or a Blood Volume Control(BVC). The study is divided in three phases: the first one, three months long, is the baseline in standard bicarbonate dialysis, then all the patients are shifted to AFB with BVC, for other three months, while the last three months long phase, after a randomization, has the aim to identify the relative contribution of each factor (absence of acetate in the bath or BVC) in the treatment tolerance improvement(if any). The treatment tolerance will be evaluated considering the frequency of intradialytic hypotensive events.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

55

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Italien
      • Bologna, Italien
        • Hospital "Policlinico S.Orsola-Malpighi"
      • Brescia, Italien
        • Hospital "Spedali Civili"
      • Rimini, Italien
        • Hospital "Degli Infermi"
    • Bologna
      • Imola, Bologna, Italien
        • Hospital "Santa Maria della Scaletta"
    • Brescia
      • Gussago, Brescia, Italien
        • Hospital "Nuovo Ronco"

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

Beskrivelse

Inclusion Criteria:

  • End stage renal disease patients
  • Patients affected by diabetic nephropathy with insulin therapy, for, at least, 6 months
  • Patients with renal replacement therapy with haemodialysis three time a week, for, at least, 6 months.
  • Age between 18 and 85 years

Exclusion Criteria:

  • Patients affected by neoplasm and/or mental illness
  • Patients with residual diuresis > 500 ml/die;
  • Patients in single needle bicarbonate dialysis.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: AFB stand alone
Patients are switched in AFB treatment, without blood volume control.
Andet: BD and BVC, AFB
Some patients are randomized into the AFB, the others into the BD and BVC
Andre navne:
  • Biofeedback,Blood Volume Control,Acetate Free Biofiltration
Aktiv komparator: BD and BVC
Patients are switched into bicarbonate dialysis with Blood Volume Control
Andet: BD and BVC, AFB
Some patients are randomized into the AFB, the others into the BD and BVC
Andre navne:
  • Biofeedback,Blood Volume Control,Acetate Free Biofiltration

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Investigate a possible better tolerance to dialysis, eliminating acetate in the dialysate bath, with AFB treatment, and using, at the same time, the automatic blood volume control (BVC).
Tidsramme: 3 months

The treatment tolerance is measured by the number of intradialytic hypotensive events, defined as:

  • systolic blood pressure less then 90 mmHg;
  • systolic blood pressure more then 25 mmHg to the predialysis value, with hypotensive events requiring therapies;
  • systolic blood pressure less then 90 mmHg with hypotensive events requiring therapies for those patients, which predialysis systolic blood pressure value was 100 mmHg.
3 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
The secondary outcome measure is to evaluate the relative efficiency of each factor (AFB in the bath and blood volume control) to reach this result.
Tidsramme: 3 months

The evaluation will be done on:

  • frequency of hypotensive events, during dialysis (defined as above);
  • number of nurse interventions (defined as ultrafiltration rate stop, or saline infusion);
  • antihypertensive drugs.
3 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Università degli Studi di Brescia

Efterforskere

  • Studiestol: Giovanni Cancarini, MD, Università of Brescia

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

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. marts 2006

Primær færdiggørelse (Faktiske)

1. marts 2010

Studieafslutning (Faktiske)

1. marts 2010

Datoer for studieregistrering

Først indsendt

29. marts 2010

Først indsendt, der opfyldte QC-kriterier

1. april 2010

Først opslået (Skøn)

2. april 2010

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

2. april 2010

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

1. april 2010

Sidst verificeret

1. marts 2010

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • THIRD-01

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 .

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