- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT03016455
B Cell Lymphocyte in Humoral Rejection and Alloimmunisation (BHL)
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
The principal objective is to better understand the B cell dependant mechanisms of the chronic antibody mediated rejection (cAMR). A particular focus will be done on the mechanisms that could explain the natural history of chronic humoral mediated rejection and of pathways from DSA negative status toward DSA positive status and from DSA positive status to histological lesions. The following will be undergone for three categories of patients (stable patients, DSA positive patients without cAMR and DSA positive patients with cAMR) :
- A phenotypic analysis of B cells of patients suffering from chronic humoral rejection or who are simply DSA positive.
- A functional analysis in autologous cultures in order to confirm our preliminary results.
- A functional analysis in a heterologous proliferation test aiming at a better understanding of the absence of B cell regulation of T cell proliferation in patients suffering from cAMR.
- A cytokine analysis (IL10, alpha-tumor necrosis factor, gamma-interferon dosing), for a better understanding of the mechanisms that are involved in the regulation of the T cell response that is induced by the B cells.
Tipo di studio
Iscrizione (Anticipato)
Contatti e Sedi
Luoghi di studio
-
-
-
Amiens, Francia, 80054
- Completato
- CHU Amiens
-
Angers, Francia, 49933
- Completato
- CHU Angers
-
Brest, Francia, 29200
- Reclutamento
- CHU Brest
-
Caen, Francia, 14033
- Completato
- CHU Caen
-
Clermont Ferrand, Francia, 63003
- Completato
- Chu Clermont Ferrand
-
Limoges, Francia, 87042
- Ritirato
- CHU Limoges
-
Paris, Francia, 75743
- Completato
- APHP Hôpital Necker
-
Poitiers, Francia, 86021
- Completato
- CHU Poitiers
-
Reims, Francia, 51092
- Completato
- CHU Reims
-
Rennes, Francia, 35033
- Completato
- Chu Rennes
-
Rouen, Francia, 76230
- Completato
- CHU Rouen
-
Strasbourg, Francia, 67091
- Completato
- Hôpitaux Universitaires de Strasbourg
-
Tours, Francia, 37044
- Completato
- CHU Tours
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion criteria :
Non stable patients :
- Patient older than 18 years old.
- Patient which is the recipient of a renal transplant
- Patient who develops anti donor antibodies after the transplantation and / or suffering from a histologically-proven antibody mediated rejection.
- Patient who has signed an informed consent form
Stable patients :
- Patient older than 18 years old.
- Patient that is the recipient of a renal transplant for more than one year
- Patient who has accepted to participate in the Brest Kidney graft recipient collection
- Patient that is not suffering from any rejection, that has a good renal function and a low proteinuria
- Patient that has not developed any DSA.
Exclusion criteria :
- Patients that has not signed the consent form.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
Intervento / Trattamento |
|---|---|
|
DSA positive patients without cAMR
Presence of DSA w/o cAMR
|
|
|
DSA positive patients with cAMR
Presence of DSA w/ cAMR
|
|
|
Stable patients
No DSA No cAMR
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Evaluation of the ratio (percentage and absolute values) of mature LB subpopulations (LBm1 to LBm5) and of memory LB by specific labellings
Lasso di tempo: At the inclusion day
|
At the inclusion day
|
|
|
Evaluation of the proliferation of freshly isolated cells T in presence of autologous B cells
Lasso di tempo: At the inclusion day
|
At the inclusion day
|
|
|
Evaluation of the proliferation of T cells in a heterologous test
Lasso di tempo: At the inclusion day
|
aiming at a better understanding of the absence of B cell regulation of T cell proliferation in patients suffering from cAMR
|
At the inclusion day
|
|
cytokine analysis(IL10, alpha-Tumor Necrosis FActor, gamma-Interferon dosing)
Lasso di tempo: At the inclusion day
|
for a better understanding of the mechanisms that are involved in the regulation of the T cell response that is induced by the B cells.
|
At the inclusion day
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Correlation between phenotypic and functional evaluations, and clinical outcome
Lasso di tempo: One year post inclusion
|
One year post inclusion
|
|
|
comparison of the B cell subpopulations before and after rituximab treatment
Lasso di tempo: One year post inclusion
|
In a subgroup of patients, the ones that will happen to be treated by rituximab for a rejection episode.
|
One year post inclusion
|
Collaboratori e investigatori
Sponsor
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 (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Altri numeri di identificazione dello studio
- BHL (RB 12.047)
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 .
Prove cliniche su Trapianto renale
-
University of California, San FranciscoUniversity of Pennsylvania; National Heart, Lung, and Blood Institute (NHLBI); Columbia... e altri collaboratoriNon ancora reclutamentoFragilità | Candidato al transplant polmonareStati Uniti
-
Abramson Cancer Center of the University of PennsylvaniaRitiratoPazienti affetti da cancro sottoposti a trapianto di cellule staminali (RCT of ACP for Transplant)
-
National Cancer Institute (NCI)NCIC Clinical Trials Group; Southwest Oncology Group; Cancer and Leukemia Group BCompletatoCarcinoma a cellule renali a cellule chiare | Cancro a cellule renali in stadio III AJCC v7 | Cancro a cellule renali in stadio II AJCC v7 | Stadio I Renal Cell Cancer AJCC v6 e v7Stati Uniti, Canada, Porto Rico
-
National Cancer Institute (NCI)TerminatoCarcinoma a cellule renali a cellule chiare | Carcinoma a cellule renali metastatico | Cancro a cellule renali in stadio III AJCC v7 | Cancro a cellule renali in stadio IV AJCC v7 | Cancro a cellule renali in stadio II AJCC v7 | Stadio I Renal Cell Cancer AJCC v6 e v7Stati Uniti
Prove cliniche su Presence of DSA w/o cAMR
-
GlaxoSmithKlineCompletato