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Effects of Hormonal Anabolic Deficiency and Neurovascular Alterations on Mortality in Male Patients With Heart Failure (TestoHF)

2021년 4월 29일 업데이트: Maria Janieire de Nazaré Nunes Alves, University of Sao Paulo General Hospital

Hormonal Anabolic Deficiency Associated With Neurovascular Alterations Predict Poor Prognosis in Male Patients With Heart Failure

Heart failure (HF) has been associated with chronic deleterious effects on skeletal muscle, endocrine system, vasculature and sympathetic nervous system. These alterations have a significant impact on quality of life, leading to a reduction in functional capacity and limited symptoms, which involve dyspnea and fatigue. The investigators tested the hypothesis that hormonal anabolic deficiency associated with neurovascular alterations may worsen the prognosis of patients with heart failure.

연구 개요

상태

완전한

정황

개입 / 치료

상세 설명

One hundred and fifty six patients have been enrolled so far. Methods were as described below:

  • Muscle sympathetic nerve activity (MSNA) was directly recorded from the peroneal nerve using the microneurography technique ;
  • All patients underwent symptom-limited cardiopulmonary exercise test performed on a cycle ergometer, using a ramp protocol with workload increments of 5 or 10 Watts per minute;
  • Body composition measurements were performed using dual-energy X-ray absorptiometry (DXA);
  • Muscle strength was assessed by handgrip dynamometer using the mean value of three attempts;
  • Blood samples were drawn in the morning after 12h overnight fasting. The laboratory tests included B-type natriuretic peptide (BNP; pg/mL) plasma level, serum sodium (mEq/L), serum potassium (mEq/L), creatinine (mg/dL), haemoglobin level (g/dL), high-sensitivity C-reactive protein (CRP; mg/L), lipid profile (triglyceride, total cholesterol, high-density lipoprotein, and low-density lipoprotein; mg/dL), and fasting glucose (mg/dL). Blood sample to assess hormone plasma levels were also drawn at the same time: total testosterone (TT), free testosterone (FT), sex hormone binding globulin (SHBG), dehydroepiandrosterone sulfate (DHEAS), luteinizing hormone (LH), follicle-stimulating hormone (FSH), thyroid stimulating hormone (TSH) and insulin-like growth factor 1 (IGF1).

연구 유형

관찰

등록 (실제)

169

연락처 및 위치

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

연구 장소

  • 브라질
    • SP
      • Sao Paulo, SP, 브라질, 05403-900
        • Instituto do Coração do Hospital da Clínicas da Universidade de Sao Paulo

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

아니

연구 대상 성별

남성

샘플링 방법

확률 샘플

연구 인구

Patients with heart failure recruited at Clinical Unit of Myocardiopathy at General Hospital of the University of São Paulo Medical School (UNCAR/HC-FMUSP).

설명

Inclusion Criteria:

  • age between 18 and 65 years old;
  • at least1 year of diagnosed HF;
  • left ventricular ejection fraction (LVEF) lower than 40% measured by echocardiography;
  • non-ischaemic and ischaemic aetiologies;
  • compensated HF with optimal medication for at least 3 months prior the study;
  • New York Heart Association (NYHA) class of I to IV.

Exclusion Criteria:

  • patients with autonomic diabetic neuropathy;
  • patients with chronic renal failure with haemodialysis;
  • heart transplantation;
  • presence of pacemaker;
  • patients with muscular dystrophy (i.e. Duchenne muscular dystrophy);
  • patients submitted to any hormonal treatment;
  • history of cancer;
  • ongoing infection;
  • myocardial infarction with percutaneous coronary intervention or revascularization 6 months prior to the study entry.

공부 계획

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

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 관찰 모델: 보병대
  • 시간 관점: 유망한

코호트 및 개입

그룹/코호트
개입 / 치료
Low testosterone

Patients with HF and testosterone deficiency.

  • Cardiopulmonary exercise test
  • Muscle Sympathetic Nerve Activity
  • Dual-energy X-ray absorptiometry
  • Venous occlusion plethysmography
  • Blood sample collection
  • Dynamometers for Handgrip Strength
진단 검사: Cardiopulmonary exercise test
Oxygen consumption (VO2) and carbon dioxide output (VCO2) were measured by means of gas exchange on a breath-by-breath basis. The patients were initially monitored for 2 minutes at rest when seated on the ergometer, after that they were instructed to pedal at a pace of 60-70 rpm and the completion of the test occurred when, in spite of verbal encouragement, the patient reached maximal volitional fatigue.
진단 검사: Muscle Sympathetic Nerve Activity
Multiunit post-ganglionic muscle sympathetic nerve recordings were made using a tungsten microelectrode placed in the peroneal nerve near the fibular head. Nerve signals were amplified by a factor of 50,000 to 100,000 and band-pass filtered (700 to 2000 Hz). For recording and analysis, nerve activity was rectified and integrated (time constant 0.1 seconds) to obtain a mean voltage display of sympathetic nerve activity.
진단 검사: Dual-energy X-ray absorptiometry
Dual-energy X-ray absorptiometry (DXA) scan was used to measure total lean mass, body fat and bone mineral content.
진단 검사: Venous occlusion plethysmography
Venous occlusion plethysmography was used to assess non-invasively blood flow.
진단 검사: Blood sample collection
Blood samples were drawn in the morning after 12h overnight fasting.
진단 검사: Dynamometers for Handgrip Strength
Muscle strength was assessed by handgrip dynamometer using the mean value of three attempts.
Normal testosterone

Patients with HF and normal plasma levels of testosterone.

  • Cardiopulmonary exercise test
  • Muscle Sympathetic Nerve Activity
  • Dual-energy X-ray absorptiometry
  • Venous occlusion plethysmography
  • Blood sample collection
  • Dynamometers for Handgrip Strength
진단 검사: Cardiopulmonary exercise test
Oxygen consumption (VO2) and carbon dioxide output (VCO2) were measured by means of gas exchange on a breath-by-breath basis. The patients were initially monitored for 2 minutes at rest when seated on the ergometer, after that they were instructed to pedal at a pace of 60-70 rpm and the completion of the test occurred when, in spite of verbal encouragement, the patient reached maximal volitional fatigue.
진단 검사: Muscle Sympathetic Nerve Activity
Multiunit post-ganglionic muscle sympathetic nerve recordings were made using a tungsten microelectrode placed in the peroneal nerve near the fibular head. Nerve signals were amplified by a factor of 50,000 to 100,000 and band-pass filtered (700 to 2000 Hz). For recording and analysis, nerve activity was rectified and integrated (time constant 0.1 seconds) to obtain a mean voltage display of sympathetic nerve activity.
진단 검사: Dual-energy X-ray absorptiometry
Dual-energy X-ray absorptiometry (DXA) scan was used to measure total lean mass, body fat and bone mineral content.
진단 검사: Venous occlusion plethysmography
Venous occlusion plethysmography was used to assess non-invasively blood flow.
진단 검사: Blood sample collection
Blood samples were drawn in the morning after 12h overnight fasting.
진단 검사: Dynamometers for Handgrip Strength
Muscle strength was assessed by handgrip dynamometer using the mean value of three attempts.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Impact of testosterone deficiency on mortality
기간: 2 years
Blood sample was collected in the morning (between 8:00-10:00 a.m.) after 12 hours fasting.
2 years
Impact of muscle sympathetic nerve activity on mortality
기간: 2 years
Microneurography was used to assess the sympathetic nervous system.
2 years
Impact of neurovascular alterations on mortality
기간: 2 years
Venous occlusion pletysmography was used to evaluate vasodilation.
2 years

2차 결과 측정

결과 측정
측정값 설명
기간
Impact of testosterone deficiency on body composition
기간: 2 years
Body composition measurements were performed using dual-energy X-ray absorptiometry.
2 years
Impact of testosterone deficiency on functional capacity
기간: 2 years
All patients underwent symptom-limited cardiopulmonary exercise test to measure functional capacity.
2 years
Impact of testosterone deficiency on strength
기간: 2 years
Muscle strength was assessed by handgrip dynamometer using the mean value of three attempts.
2 years

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

University of Sao Paulo General Hospital

협력자

Fundação de Amparo à Pesquisa do Estado de São Paulo

수사관

  • 수석 연구원: Maria Janieire de Nazaré Nunes Alves, PhD, InCor Heart Institute

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 6월 30일

기본 완료 (실제)

2020년 3월 23일

연구 완료 (실제)

2020년 12월 30일

연구 등록 날짜

최초 제출

2018년 3월 1일

QC 기준을 충족하는 최초 제출

2018년 3월 9일

처음 게시됨 (실제)

2018년 3월 13일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2021년 5월 3일

QC 기준을 충족하는 마지막 업데이트 제출

2021년 4월 29일

마지막으로 확인됨

2021년 4월 1일

추가 정보

이 연구와 관련된 용어

키워드

추가 관련 MeSH 약관

기타 연구 ID 번호

  • AnabolicHormonesPrognosis

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

아니

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

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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. .

심부전에 대한 임상 시험

Cardiopulmonary exercise test에 대한 임상 시험

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