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The Role of Lipids in Immune Cell Function in SLE Patients

2020년 4월 22일 업데이트: University College, London

Understanding the Role Played by Serum and Membrane Lipids in Immune Cell Function in Patients With Systemic Lupus Erythematosus (SLE) and Healthy Donors

The overall aim of this project is to investigate the different types of immune cells found in the blood of patients with Systemic Lupus Erythematosus (SLE) and healthy donors. We know that the amount of fat on the surface of immune cells is an important factor controlling their behaviour. Immune cells from SLE patients are defective and this is associated with changes in the levels of fat on these cells. This project will investigate the level of fat in the blood and on immune cells from patients with SLE and age matched healthy controls, and measure how changes in the amount of fat can affect the way immune cells behave.

연구 개요

상세 설명

Accelerated atherosclerosis is a serious complication of autoimmunity including patients with both adult and juvenile onset systemic lupus erythematosus (SLE). This suggests that defects in fat levels could contribute to disease pathogenesis. The immune system in patients with SLE does not work normally. In adult patients with SLE we know that many of the immune cells involved in protecting the body from infections or cancer are over-active and actually cause disease. In young people the immune system is still developing and very little is known about what goes wrong in patients that develop juvenile-onset SLE, whether this is the same as adult disease and whether the same treatments are relevant for this group of patients. This project aims to find out whether immune cells from SLE patients with adult-onset disease have the same defects as adult patients with juvenile-onset SLE. We know that an important factor that controls immune cell behaviour is the amount of fat that they have on their surface. We also know that a change in fat on immune cells from adult patients with SLE makes them defective. This project will investigate the level of fat in the blood and in immune cells from adult patients with juvenile-onset SLE and age matched healthy controls, and measure how changes in the amount of fat can affect the way immune cells behave. We will investigate how drugs that control fat levels can help to normalize the behaviour of immune cells from SLE patients.

연구 유형

관찰

등록 (예상)

300

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 연락처 백업

연구 장소

      • London, 영국, NW1 2BU
        • 모병
        • University College London Hospitals NHS Foundation Trust
        • 연락하다:
        • 연락하다:
        • 수석 연구원:
          • David Isenberg, Prof

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

해당 없음

연구 대상 성별

모두

샘플링 방법

비확률 샘플

연구 인구

Patients will be approached by the consultant rheumatologist when the patient is attending their normal outpatient clinic appointment.

Healthy donors will be approached in a similar way using information flyers, invitation letters and participant information sheets by a member of the research team.

Healthy volunteers from UCL staff will be made aware of the study and also asked to participate.

설명

Inclusion Criteria:

  • Diagnosis of SLE according to American College of Rheumatology revised criteria
  • Having given written informed consent prior to undertaking any study-related procedures.
  • Male and female patients between the ages of 18 and 80 years.

Patients who have met all the above inclusion criteria listed and healthy donors will be screened for the following exclusion criteria:

Exclusion Criteria:

  • Under any administrative or legal supervision.
  • Conditions/situations such as:
  • A concomitant autoimmune disease
  • Impossibility to meet specific protocol requirements (e.g. blood sampling).
  • Patient is the Investigator or any sub-investigator, research assistant, pharmacist, study coordinator, other staff or relative thereof directly involved in the conduct of the protocol.
  • Uncooperative or any condition that could make the patient potentially non-compliant to the study procedures.
  • Pregnant or breast-feeding women, currently or in the last three months prior to inclusion.
  • Patients who have been vaccinated in the last three months prior to inclusion.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

코호트 및 개입

그룹/코호트
개입 / 치료
Juvenile onset Systemic Lupus Erythematosus (SLE) patients
All patients who meet the American College of Rheumatology revised criteria for SLE who were diagnosed with SLE between the ages of 11 and 21.
  • Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
  • Food Frequency Questionnaires (FFQs) and/or diet recall questionnaires to assess dietary intake.
  • Cardiovascular Ultrasound Scans (USS) to measure how well blood is carried around the body.
다른 이름들:
  • Food Frequency Questionnaires (FFQs) and/or 24 hour diet recall questionnaires
  • Ultrasound Scan (USS)
  • GTN (glyceryl trinitrate) administration
Adult onset Systemic Lupus Erythematosus (SLE) patients
All patients who meet the American College of Rheumatology revised criteria for SLE who were diagnosed with SLE between the ages of 24 and 80
  • Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
  • Food Frequency Questionnaires (FFQs) and/or diet recall questionnaires to assess dietary intake.
  • Cardiovascular Ultrasound Scans (USS) to measure how well blood is carried around the body.
다른 이름들:
  • Food Frequency Questionnaires (FFQs) and/or 24 hour diet recall questionnaires
  • Ultrasound Scan (USS)
  • GTN (glyceryl trinitrate) administration
Matching healthy volunteers
Healthy volunteers, matched by age and gender, will be used as a control group
  • Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
  • Food Frequency Questionnaires (FFQs) and/or diet recall questionnaires to assess dietary intake.
  • Cardiovascular Ultrasound Scans (USS) to measure how well blood is carried around the body.
다른 이름들:
  • Food Frequency Questionnaires (FFQs) and/or 24 hour diet recall questionnaires
  • Ultrasound Scan (USS)
  • GTN (glyceryl trinitrate) administration

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Collection of blood samples
기간: 4 hours from point of sample collection
Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
4 hours from point of sample collection
Completion of FFQ's and/or diet recall questionnaires
기간: Same day as recruited to study.
FFQ's and/or diet recall questionnaires to assess dietary intake
Same day as recruited to study.
Cardiovascular Ultrasound scans (USS)
기간: Within 2 months from recruitment.
USS of Intima Media Thickness (IMT), Flow Mediated Dilatation (FMD), Pulse Wave Velocity (PWV) and Laser Doppler Flowmetry measurement. As part of the procedure, sub lingual administration of GTN spray will be administered to measure FMD.
Within 2 months from recruitment.

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 수석 연구원: David Isenberg, Prof, UCL & University College London Hospitals NHS Foundation Trust

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2016년 2월 15일

기본 완료 (예상)

2020년 8월 31일

연구 완료 (예상)

2020년 8월 31일

연구 등록 날짜

최초 제출

2020년 4월 22일

QC 기준을 충족하는 최초 제출

2020년 4월 22일

처음 게시됨 (실제)

2020년 4월 24일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2020년 4월 24일

QC 기준을 충족하는 마지막 업데이트 제출

2020년 4월 22일

마지막으로 확인됨

2020년 4월 1일

추가 정보

이 연구와 관련된 용어

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

미정

IPD 계획 설명

All participants are required to indicate in written consent if they agree to the use of any left over samples and associated data for future research use.

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

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. .

전신성 홍반성 루푸스에 대한 임상 시험

3
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