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Reducing CVD Risk in Caregivers: A Brief Behavioral Activation Intervention

2016년 5월 10일 업데이트: Brent Mausbach, University of California, San Diego
Cardiovascular disease and depression are some of the most costly illnesses to society, and caring for a loved-one with Alzheimer's disease has been associated with increased risk for both depression and cardiovascular disease. Indeed, depressive symptoms have been linked with elevated plasma concentrations of D-dimer and Interleukin-6 (IL-6), both of which are associated with increased risk for cardiovascular disease (CVD). The present research tests a brief behavioral intervention for reducing both depressive symptoms and CVD biomarkers in Alzheimer caregivers. We hypothesize that caregivers receiving a brief Behavioral Activation (BA) therapy will show greater reductions in depressive symptoms and in CVD biomarkers relative to those randomized to a time-equivalent Information and Support (IS) therapy.

연구 개요

상세 설명

Due to an aging society, the number of people diagnosed with dementia is expected to increase dramatically over the next two decades, with a concomitant rise in the number of family members providing informal care for their loved ones. The stresses associated with this care have been well-documented in the scientific literature, and are noted to be associated with increased risk for psychological and physical morbidity, particularly cardiovascular disease. Indeed, caregiving is associated with elevations in negative affect (e.g., depressive and anxiety symptoms), which in turn is associated with biological indicators that are thought to predict CVD risk (e.g., markers of coagulation and inflammation). The primary goal of this study is to examine the efficacy of a brief Behavioral Activation (BA) Treatment, called the Pleasant Events Program (PEP), for reducing biological CVD risk indicators in a sample of Alzheimer caregivers. We will enroll 100 dementia caregivers and randomly assign them to receive 4-sessions of PEP or 4-sessions of support + information. Our PEP intervention will be conducted in caregivers' homes and will emphasize the importance of monitoring and increasing activities that help individuals make contact with natural reinforcers in their environments, identifying and reducing negative coping responses, and selection and achievement of behavioral goals for healthier living. Caregivers will be assessed for our biological outcomes at baseline, post-treatment, and 1-year to determine intervention efficacy. Given the brief nature of the PEP intervention, the ease with which it can be applied in real-world settings (e.g., community agencies providing services to caregivers), and lack of difficult skills for interventionists and caregivers to acquire, we believe our PEP intervention will be easily transferred to "real-world" settings. If our PEP intervention is efficacious, it may have a considerable impact on both the physical and mental health of caregivers, and will likely have public health implications.

연구 유형

중재적

등록 (실제)

100

단계

  • 해당 없음

연락처 및 위치

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

연구 장소

    • California
      • La Jolla, California, 미국, 92093
        • University of California San Diego

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

55년 이상 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

아니

연구 대상 성별

모두

설명

Inclusion Criteria:

  • Aged 55 or older and providing at-home care for a care recipient (CR) with a physician-diagnosis of Alzheimer's disease (AD) or related dementia.

Exclusion Criteria:

  • Receiving beta-blocking medications at enrollment
  • Receiving treatment with Anticoagulant medications
  • Severe hypertension (>200/120 mmHg)
  • Diagnosed with a terminal illness with a life expectancy <6 months
  • Enrolled in another intervention study

공부 계획

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

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위
  • 중재 모델: 병렬 할당
  • 마스킹: 하나의

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: Pleasant Events Program (PEP)
The Pleasant Events Program (PEP) is a Behavioral Activation (BA) treatment for depression. Participants receive 4 weekly sessions of face-to-face therapy (60 minutes each) to increase caregiver participation in pleasurable activities. Two additional phone sessions focus on continued behavioral activation for caregivers as well as problem-solving barriers to activation.
Behavioral Activation Therapy
활성 비교기: Information-Support (IS)
Participants in the Information-Support (IS) control condition were provided with a resource manual consisting of topics commonly covered in support groups or information packets provided by community agencies. Topics included problem-solving and communication skills, cognitive reframing and behavioral management, self-care help, caregiver fact sheets on a range of social and mental health issues, placement information, financial and legal issues, and lists of local organizations and community resources available. Each IS session allowed caregivers to select issue(s) from the resource manual to discuss. The therapist covered the material based on the caregivers' needs. When requested by the caregiver, supportive psychotherapy was also provided.
Information-Support (IS) condition consisted of supportive psychotherapy and informational brochures.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Brief Center for Epidemiologic Studies Depression Scale (CESD)
기간: Change from Baseline CESD at 8-weeks
The Brief CESD is a measure of depressive symptoms. The scale's minimum score is 0 and maximum score is 30. Lower scores represent fewer depressive symptoms and thus better outcomes.
Change from Baseline CESD at 8-weeks
D-dimer
기간: Change from Baseline D-dimer at 8-weeks
D-dimer is an indicator of fibrin formation and its subsequent lysis and is a useful biomarker representing overall activation of blood coagulation. High concentrations of D-dimer have been linked prospectively to onset of Coronary Heart Disease. Blood was collected by a research nurse in the caregivers' homes through a 22 gauge forearm catheter after a 20 minute rest. Blood for D-dimer was dispensed into polypropylene tubes with 3.8 percent sodium citrate and spun at 1600 g for 10 minutes at room temperature. Obtained plasma was stored at minus 80 degrees Celsius until analyzed. Plasma D-dimer (Asserachrom Stago, Asnieres, France) was determined via high sensitive enzyme-linked immunosorbent assays. Intra- and interassay coefficients of variation were less than 5 percent.
Change from Baseline D-dimer at 8-weeks
Interleukin-6 (IL-6)
기간: Change from Baseline IL-6 at 8-weeks
IL-6 is one of many biomarkers represented in the inflammatory cascade which is initiated during an immune response. Prospectively, increased plasma IL-6 is also associated with future myocardial infarction in healthy men and increasing concentrations of IL-6 have been associated with both nonfatal myocardial infarction and fatal Coronary Heart Disease (CHD) in longitudinal studies of population-based cohorts. Higher concentrations of IL-6 raise CHD risk. Blood was collected by a research nurse in the caregivers' homes through a 22-gauge forearm catheter after a 20 min rest. Blood for IL-6 was dispensed in Ethylenediaminetetraacetic acid (EDTA) tubes and spun at 3000 g for 10 minutes at 4 to 8 degrees Celsius. Obtained plasma was stored at minus 80 degrees Celsius until analyzed. Plasma IL-6 (Meso Scale Discovery, Gaithersburg, MD) was determined via highsensitive enzyme-linked immunosorbent assays. Intra- and interassay coefficients of variation were less than 5 percent.
Change from Baseline IL-6 at 8-weeks

2차 결과 측정

결과 측정
측정값 설명
기간
Positive and Negative Affect Schedule
기간: Change from Baseline Positive Affect at 8-weeks
This scales contains ten items assessing Positive Affect. Items included are adjectives, such as "interested," "strong," and "inspired". Participants rated each adjective based on how they felt over the past few weeks using a 5-point scale with responses ranging from 1 (very slightly to not at all) to 5 (extremely). The scale's minimum score is 10 and maximum score is 50. Higher scores represent better outcomes.
Change from Baseline Positive Affect at 8-weeks
Positive and Negative Affect Schedule
기간: Change from Baseline Negative Affect at 8-weeks
This scales contains ten items assessing Negative Affect. Items included are adjectives, such as "distressed," "ashamed," and Participants rated each adjective based on how they felt over the past few weeks using a 5-point scale with responses ranging from 1 (very slightly to not at all) to 5 (extremely). The scale's minimum score is 10 and maximum score is 50. Lower scores represent better outcomes.
Change from Baseline Negative Affect at 8-weeks

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 수석 연구원: Brent Mausbach, PhD, University of California, San Diego

간행물 및 유용한 링크

연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.

일반 간행물

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

2008년 4월 1일

기본 완료 (실제)

2013년 2월 1일

연구 완료 (실제)

2013년 2월 1일

연구 등록 날짜

최초 제출

2013년 2월 20일

QC 기준을 충족하는 최초 제출

2013년 2월 27일

처음 게시됨 (추정)

2013년 3월 1일

연구 기록 업데이트

마지막 업데이트 게시됨 (추정)

2016년 6월 13일

QC 기준을 충족하는 마지막 업데이트 제출

2016년 5월 10일

마지막으로 확인됨

2016년 5월 1일

추가 정보

이 연구와 관련된 용어

기타 연구 ID 번호

  • R01AG031090 (미국 NIH 보조금/계약)

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

미정

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. .

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