- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT03016455
B Cell Lymphocyte in Humoral Rejection and Alloimmunisation (BHL)
연구 개요
상태
정황
상세 설명
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.
연구 유형
등록 (예상)
연락처 및 위치
연구 장소
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-
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Amiens, 프랑스, 80054
- 완전한
- CHU Amiens
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Angers, 프랑스, 49933
- 완전한
- CHU Angers
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Brest, 프랑스, 29200
- 모병
- CHU Brest
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Caen, 프랑스, 14033
- 완전한
- CHU Caen
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Clermont Ferrand, 프랑스, 63003
- 완전한
- Chu Clermont Ferrand
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Limoges, 프랑스, 87042
- 빼는
- CHU Limoges
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Paris, 프랑스, 75743
- 완전한
- APHP Hôpital Necker
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Poitiers, 프랑스, 86021
- 완전한
- CHU Poitiers
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Reims, 프랑스, 51092
- 완전한
- CHU Reims
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Rennes, 프랑스, 35033
- 완전한
- Chu Rennes
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Rouen, 프랑스, 76230
- 완전한
- CHU Rouen
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Strasbourg, 프랑스, 67091
- 완전한
- Hôpitaux Universitaires de Strasbourg
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Tours, 프랑스, 37044
- 완전한
- CHU Tours
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
설명
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.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
|---|---|
|
DSA positive patients without cAMR
Presence of DSA w/o cAMR
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|
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DSA positive patients with cAMR
Presence of DSA w/ cAMR
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|
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Stable patients
No DSA No cAMR
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Evaluation of the ratio (percentage and absolute values) of mature LB subpopulations (LBm1 to LBm5) and of memory LB by specific labellings
기간: At the inclusion day
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At the inclusion day
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|
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Evaluation of the proliferation of freshly isolated cells T in presence of autologous B cells
기간: At the inclusion day
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At the inclusion day
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Evaluation of the proliferation of T cells in a heterologous test
기간: 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
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At the inclusion day
|
|
cytokine analysis(IL10, alpha-Tumor Necrosis FActor, gamma-Interferon dosing)
기간: 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
|
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Correlation between phenotypic and functional evaluations, and clinical outcome
기간: One year post inclusion
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One year post inclusion
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comparison of the B cell subpopulations before and after rituximab treatment
기간: One year post inclusion
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In a subgroup of patients, the ones that will happen to be treated by rituximab for a rejection episode.
|
One year post inclusion
|
공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (예상)
연구 완료 (예상)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
신장 이식에 대한 임상 시험
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