- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT00212329
T Cell Validation Study Using Blood Samples From Subjects With Recent Onset Type 1 Diabetes Mellitus
A Comparative Study Between the Cytokine Elispot, Tetramer, Immunoblot, and T Cell Proliferation Assays Using Fresh Blood Samples From Subjects With Recent Onset Type 1 Diabetes Mellitus
연구 개요
상태
정황
상세 설명
The T Cell Validation Study is designed to determine the ability of T cell assays to identify differences in responses from participants with type 1 diabetes compared to normal control subjects, and to compare four different laboratory tests which examine T cells to determine whether the measurements are quantitatively reproducible.
Antibody assays that confirm the presence of type 1 diabetes will be evaluated including: Diabetes Biochemical Autoantibody Assay (anti-GAD65, anti-ICA512, anti-insulin) and Islet Cell Autoantibody testing; genetic testing (deoxyribonucleic acid [DNA] and human leukocyte antigen [HLA]) will also be done to learn more about the T cell assays.
The following T Cell Assays will be conducted in individuals with type 1 diabetes, as well as those without type 1 diabetes:
- Cellular Immunoblot Testing
- T Cell Proliferation Assay
- Tetramer Assay
- Cytokine ELISpot Assay
연구 유형
등록 (예상)
연락처 및 위치
연구 장소
-
-
California
-
Los Angeles, California, 미국, 90027
- Childrens Hospital of Los Angeles
-
San Francisco, California, 미국, 94143-0136
- University of California, San Francisco
-
Stanford, California, 미국, 94305-5208
- Stanford University Medical Center
-
-
Colorado
-
Denver, Colorado, 미국, 80010
- Barbara Davis Center for Childhood Diabetes
-
-
Florida
-
Gainesville, Florida, 미국, 32608
- University of Florida
-
Miami, Florida, 미국, 33136
- University of Miami School of Medicine
-
-
Indiana
-
Indianapolis, Indiana, 미국, 46202
- Riley Hospital for Children
-
-
Massachusetts
-
Boston, Massachusetts, 미국, 02215
- Joslin Diabetes Center
-
-
Minnesota
-
Minneapolis, Minnesota, 미국, 55455
- University of Minnesota
-
-
New York
-
New York, New York, 미국, 10032
- Naomi Berrie Diabetes Center, Columbia University
-
-
Pennsylvania
-
Pittsburgh, Pennsylvania, 미국, 15213
- Children's Hospital of Pittsburgh of UPMC
-
-
Texas
-
Dallas, Texas, 미국, 75235
- University of Texas Southwestern Medical Center at Dallas
-
-
Washington
-
Seattle, Washington, 미국, 98101
- Benaroya Research Institute at Virginia Mason
-
-
-
-
-
Bristol, 영국, BS10 5NB
- University of Bristol
-
-
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
To be eligible, individuals with type 1 diabetes must be:
- Diagnosed with type 1 diabetes within one year of first study visit
- 8-35 years of age at time of first visit
- Weigh > 40 kg (88 lbs) at time of first visit
- Individuals who will serve as control subjects who do not have type 1 diabetes cannot have a first degree or second degree relative with type 1 diabetes.
Exclusion Criteria:
Individuals must not:
- Have any major illness
- Be taking any steroid medications
- If female, should not be pregnant or breastfeeding.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
공동 작업자 및 조사자
수사관
- 연구 의자: Jay E Skyler, MD, Type 1 Diabetes TrialNet Study Chairman
간행물 및 유용한 링크
일반 간행물
- Arif S, Tree TI, Astill TP, Tremble JM, Bishop AJ, Dayan CM, Roep BO, Peakman M. Autoreactive T cell responses show proinflammatory polarization in diabetes but a regulatory phenotype in health. J Clin Invest. 2004 Feb;113(3):451-63. doi: 10.1172/JCI19585.
- Bensoussan D, Passa P, Canivet J, Levy-Toledano S, Caen J. [Letter: platelet aggregation and assay of Willebrand factor during diabetes mellitus]. Nouv Presse Med. 1975 Jan 18;4(3):195. No abstract available. French.
- Miyazaki I, Cheung RK, Gaedigk R, Hui MF, Van der Meulen J, Rajotte RV, Dosch HM. T cell activation and anergy to islet cell antigen in type I diabetes. J Immunol. 1995 Feb 1;154(3):1461-9.
- Nagata M, Kotani R, Moriyama H, Yokono K, Roep BO, Peakman M. Detection of autoreactive T cells in type 1 diabetes using coded autoantigens and an immunoglobulin-free cytokine ELISPOT assay: report from the fourth immunology of diabetes society T cell workshop. Ann N Y Acad Sci. 2004 Dec;1037:10-5. doi: 10.1196/annals.1337.002.
- Peakman M, Tree TI, Endl J, van Endert P, Atkinson MA, Roep BO; Second International Immunology of Diabetes Society Workshop for Standardization ot T-cell Assays in Type 1 Diabetes. Characterization of preparations of GAD65, proinsulin, and the islet tyrosine phosphatase IA-2 for use in detection of autoreactive T-cells in type 1 diabetes: report of phase II of the Second International Immunology of Diabetes Society Workshop for Standardization of T-cell assays in type 1 diabetes. Diabetes. 2001 Aug;50(8):1749-54. doi: 10.2337/diabetes.50.8.1749.
- Reijonen H, Mallone R, Heninger AK, Laughlin EM, Kochik SA, Falk B, Kwok WW, Greenbaum C, Nepom GT. GAD65-specific CD4+ T-cells with high antigen avidity are prevalent in peripheral blood of patients with type 1 diabetes. Diabetes. 2004 Aug;53(8):1987-94. doi: 10.2337/diabetes.53.8.1987.
연구 기록 날짜
연구 주요 날짜
연구 시작
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
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. .