- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT01486485
Nafamostat Efficacy and Safety in Critically Ill Patients(NICE)
Circuit Survival and Efficacy for Middle Molecular-weight Solute Elimination Between Nafamostat Infusion and Heparinized Saline Priming
Acute kidney injury (AKI) is a common and serious problem in critically ill patients, and is known to be an independent risk factor for mortality. Renal replacement therapy (RRT) is the mainstay of supportive treatment of patients with severe acute kidney injury. The goal of RRT is to achieve adequate correction of uremia, electrolyte abnormalities, and volume overload while ensuring good hemodynamic tolerance. The advantages of continuous renal replacement therapy (CRRT) are increased time-averaged dialysis dose, less hemodynamic instability, and possibly, removal of high molecular weight solutes, such as inflammatory cytokines. Solute removal can occur by several different mechanisms in CRRT. For relatively small solutes, the importance of diffusion and convection is emphasized, for solutes of larger molecular weight, the importance of convection and adsorption is emphasized. The ability of a specific CRRT to remove a certain solute is determined by membrane characteristics. But actual measurements of middle molecule clearance in large clinical trials have not been available in most trials.
During CRRT, blood is conducted through an extracorporeal circuit, circuit clotting is a major problem in daily practice of CRRT, increasing blood loss, workload, and costs. Early clotting is related to bioincompatibility, critical illness, vascular access, CRRT circuit, and modality. Therefore, one major intervention to influence circuit survival is anticoagulation. However, systemic anticoagulation, usually with heparin, can produce hemorrhagic complications in patients at high risk of bleeding. To minimize the risk of bleeding, a number of alternative regimens has been proposed, however, each of those methods has its own limitations and complication. Nafamostat mesilate, a serine proteinase inhibitor, while inhibiting various clotting factors in filter circuit, is characterized by short half life resulting in little systemic anticoagulation effect. A recently developed CRRT AN69ST membrane® (Gambro Inc) is coated with a polyethylene imine (PEI, cationic biopolymer) on the membrane surface. Once adsorbed onto the membrane, heparin keeps its anticoagulant properties. Therefore CRRT has been managed without systemic administration of heparin.
The investigators will conduct a multicenter prospective randomized controlled open-label trial which compares the difference in circuit survival between between nafamostat infusion and heparinized saline priming as anticoagulation for CRRT. The primary end-point of this study is circuit survival, the time of 1st membrane exchange. The secondary end-point is clearance of small molecule (urea) and middle molecule (β2 microglobulin) at 0, 1, 6, 24h, ACT(activated coagulation time) measurements after 1hr of the CRRT, Hemorrhagic complication. This is a noninferiority trial. The aim is to demonstrate that nafamostat infusion is not inferior to the heparinized saline priming. For this purpose, at least 80 subjects (a total of 160) would be required for each group if type I error rate is 5% and type II error is 20% given 20% of drop-out rate during the study period. Block randomization will be used by means of a dedicated website.
There are still conflicting data on the effective exchange time of circuit membrane. Our study may help to improve prognosis in patients with severe AKI.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Tipo di studio
Iscrizione (Anticipato)
Fase
- Fase 3
Contatti e Sedi
Luoghi di studio
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-
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Koyang, Corea, Repubblica di
- Reclutamento
- National Health Insurance Corporation Ilsan Hospital
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Contatto:
- Tae Ik Chang, MD
- Numero di telefono: 82-31-900-0246
- Email: tichang@hanmail.net
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Seongnam, Corea, Repubblica di
- Reclutamento
- Seoul National University Bundang Hospital
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Contatto:
- Sejoong Kim, MD, PhD
- Numero di telefono: 82-11-9196-5245
- Email: imsejoong@hanmail.net
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Seoul, Corea, Repubblica di
- Reclutamento
- Seoul National University Hospital
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Contatto:
- Su Mi Lee
- Numero di telefono: 82-2-2072-1705
- Email: promise131@hanmail.net
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Seoul, Corea, Repubblica di
- Reclutamento
- Seoul National University Boramae Medical Center
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Contatto:
- Jung Pyo Lee, MD, PhD
- Numero di telefono: 82-2-870-2261
- Email: kjwa1@medimail.co.kr
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Injury stage of RIFLE criteria or more: > 2-fold increase in the serum creatinine or urine output < 0.5 mL/kg/hr for 12 hours
- Patients with any dialysis treatment before admission to the ICU or patients with end-stage renal failure and receiving dialysis
- Informed consent has been obtained.
Exclusion Criteria:
- patient age < 20 years or > 85 years
- life expectancy less than 3 months (ex. terminal stage of malignancy)
- Child-Pugh class C liver cirrhosis
- pregnancy or lactation
- history of anticoagulation prior to the randomization
- bleeding tendency (platelet count < 50,000/ul, INR > 2.5, PTT > 65, or fibrinogen < 1.00 g/L)
- history of hemorrhagic disease (ex. GI bleeding, cerebral hemorrhage, pulmonary hemorrhage)
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: heparinized saline priming group
Experimental group : heparinized saline priming group
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|
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Comparatore attivo: nafamostat infusion group after heparinized saline priming
active comparator : nafamostat infusion group after heparinized saline priming
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
the time of 1st membrane exchange
Lasso di tempo: the time of 'filter is clotted'
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the time of 'filter is clotted'
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the time of 'filter is clotted'
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Clearance of small molecule (urea)
Lasso di tempo: 0, 1, 6, 24h
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Clearance of small molecule (urea)
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0, 1, 6, 24h
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Clearance of middle molecule (β-2 microglobulin)
Lasso di tempo: 0, 1, 6, 24h
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Clearance of middle molecule (β-2 microglobulin)
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0, 1, 6, 24h
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ACT(activated coagulation time) measurements after 1hr of the CRRT
Lasso di tempo: after 1hr of the CRRT
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ACT(activated coagulation time) measurements after 1hr of the CRRT
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after 1hr of the CRRT
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Hemorrhagic complication
Lasso di tempo: during CRRT
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Hemorrhagic complication
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during CRRT
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Collaboratori e investigatori
Collaboratori
Investigatori
- Cattedra di studio: Dong Ki Kim, MD, PhD, Seoul National University Hospital
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Anticipato)
Completamento dello studio (Anticipato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Malattie renali
- Malattie urologiche
- Insufficienza renale
- Danno renale acuto
- Effetti fisiologici delle droghe
- Meccanismi molecolari dell'azione farmacologica
- Agenti del sistema nervoso periferico
- Inibitori enzimatici
- Analgesici
- Agenti del sistema sensoriale
- Agenti antinfiammatori, non steroidei
- Analgesici, non narcotici
- Agenti antinfiammatori
- Agenti antireumatici
- Agenti immunosoppressivi
- Fattori immunologici
- Inibitori della proteasi
- Inibitori della Serina Proteinasi
- Anticoagulanti
- Inibitori della tripsina
- Agenti inattivanti del complemento
- Nafamostato
Altri numeri di identificazione dello studio
- Nafamostat01
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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