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Secondary Prevention of Atrial Fibrilation

2021年1月23日 更新者：Boston Medical Center

Boston Medical Center Secondary Prevention of Atrial Fibrillation Randomized Pilot Study

Atrial fibrillation (AF) is the most common arrhythmia affecting over 3 million Americans and about 33.5 million individuals globally. The lifetime risk of developing AF is 1 in 4 for adults over age 40 years. AF is associated with a major medical and socioeconomic burden including high cost, increased risk of stroke, heart failure, dementia, myocardial infarction, and death. Numerous studies have demonstrated that modifiable risk factors including hypertension, obesity, sleep apnea, diabetes, and sedentary lifestyle predict the development of AF.

Recent studies have reported that secondary prevention interventions through aggressive risk factor modification can reduce the burden of AF. Structured, physician and nursing-led interdisciplinary AF programs have been shown to improve patient adherence to guideline recommendations and improve long term prognosis. Previous data, however, are derived mainly from white European and Australian cohorts and it is unclear whether such interventions can be effectively implemented in a racially diverse, safety net hospital in the U.S.

This study is a randomized hybrid implementation-effectiveness study designed to investigate feasibility and effectiveness of an evidence-based innovative AF program, focusing on risk factor modification and AF education in a racially mixed population receiving care in a safety net hospital.

調査の概要

状態

終了しました

条件

介入・治療

詳細な説明

The proposed study is designed as a Hybrid Type 3 effectiveness-implementation study. This study design will enable the investigators to primarily focus on core implementation outcomes while also assessing the effectiveness of the intervention on clinical outcomes. Since this is a Type 3 Hybrid trial, there are both effectiveness and implementation evaluation components, but the primary focus is on the implementation outcomes of feasibility, acceptability, adoption, and appropriateness. The specific aims, data collection, and analytic plans are grounded in the Proctor Conceptual Model of Implementation Research that posits improvements in outcomes are dependent not only on the evidence-based interventions that are implemented but on the implementation strategies used to implement those interventions. The model distinguishes between the intervention strategy (evidence-based practice), different types of implementation strategies (system environment, organizational, group/learning, supervision, individual providers/consumers), and three levels of outcomes (implementation, service, and client). The appropriate outcome measures in each category (implementation, service, client) depend upon the specific evidence-based practice and local context.

AF patients with a BMI of ≥ 27 kg/m2, who are referred to outpatient cardiology clinic, inpatient cardiology service, or cardiology consult service at Boston Medical Center (BMC) will be screened until 50 participants are enrolled. Eligible participants will undergo 1:1 randomization to standard of care (SoC -group 1) or to the interdisciplinary AF program (intervention- group 2). Randomization will be performed using a computer randomizer algorithm with 5 blocks of 6 and 5 blocks of 4 in random order for a total of 50 participants. The rational for the randomization design is primarily for the purpose of feasibility and to establish effect sizes and guide the design of the future trial.

All patients will be enrolled for a total duration of six months. Outcomes will be measured via 30-minute individual interviews at the end of 6-months. The implementation and service outcomes will be examined including acceptability, appropriateness, adoption, feasibility, and patient centeredness, as well as the client outcomes of satisfaction, function and symptomatology. Data will be collected using both quantitative and qualitative data methods to determine which aspects of the program achieved good patient adherence and acceptability.

研究の種類

介入

入学 (実際)

3

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

  • アメリカ
    • Massachusetts
      • Boston、Massachusetts、アメリカ、02118
        • Boston Medical Center

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  • Age 18 years or older
  • Diagnosis of paroxysmal AF (based on 12-lead electrocardiogram or event monitor showing AF).
  • Body mass index of greater than 27 kg/m2
  • Eligibility to participate in cardiac rehabilitation with negative exercise stress test within 6 months.

Exclusion Criteria:

  • Permanent AF.
  • Undergone catheter ablation of AF in past 6 months.
  • Class I or Class III anti-arrhythmic drugs at the time of enrollment
  • Unable to participate in cardiac rehabilitation.
  • Prognosis of less than 1-year.
  • Do not own a smart phone.
  • Unable to operate (transmit data) their smart phone.
  • Are not fluent in English or Spanish.
  • Unable to read in English or Spanish.
  • Not able to provide informed consent.
  • Women who are pregnant.
  • Prisoners.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか？

デザインの詳細

  • 主な目的：防止
  • 割り当て：ランダム化
  • 介入モデル：並列代入
  • マスキング：なし（オープンラベル）

武器と介入

参加者グループ / アーム
介入・治療
アクティブコンパレータ：Standard of care group 1
Participants randomized to the standard of care group will receive guideline-directed medical therapy according to clinical standard practice at Boston Medical Center. Each participant will receive an AliveCor mobile ECG cardiac monitor which is capable of providing real-time heart telemetry using a smart phone.
他の：AliveCor mobile ECG cardiac monitor
AliveCor mobile ECG cardiac monitor is capable of providing real-time heart telemetry using a smart phone. Participants will be instructed to transmit rhythm data twice weekly and during symptomatic AF.
他の：Standard of care
Guideline-directed medical therapy according to clinical standard practice at Boston Medical Center.
実験的：Intervention group 2
The intervention group will receive the AF program which include a bundle of sub-interventions that target specific AF risk factors including hypertension, obesity, physical inactivity, sleep hygiene, and smoking. Each participant will receive an AliveCor mobile ECG cardiac monitor which is capable of providing real-time heart telemetry using a smart phone.
他の：AliveCor mobile ECG cardiac monitor
AliveCor mobile ECG cardiac monitor is capable of providing real-time heart telemetry using a smart phone. Participants will be instructed to transmit rhythm data twice weekly and during symptomatic AF.
行動：AF Program
The AF program includes a bundle of sub-interventions that target specific AF risk factors including hypertension, obesity, physical inactivity, sleep hygiene, and smoking. Participants randomized to the intervention group 2 will undergo counseling by the nurse and guided through the structured, goal-directed AF program. Each participant will receive an AliveCor cardiac monitor which is capable of providing real-time heart telemetry using a smart phone.

この研究は何を測定していますか？

主要な結果の測定

結果測定
メジャーの説明
時間枠
Feasibility of the AF program
時間枠：6 months

Quantitative measure of willingness to enroll and attend nutrition clinic, cardiac rehabilitation clinic, and frequency of use of Alivecor device, smart Scale, Fitbit device will be aggregated to generate a single feasibility score to determine overall feasibility of the AF program.

The feasibility score will be generated by the following formula:

= 100 * average of { (actual nutrition clinic attendance/ expected nutrition clinic attendance) + (actual cardiac rehab clinic attendance/ expected cardiac rehab clinic attendance) + (actual use of smart phone enabled devices/expected use of smart phone enabled devices)}

A feasibility score closer to 100% indicates good feasibility.
6 months

二次結果の測定

結果測定
メジャーの説明
時間枠
Acceptability of the AF program
時間枠：6 months
Data from qualitative interviews will be coded using a process analytic framework and inductive logic to create a set of conceptual categories using the Constant Comparative Method and used to assess patient-centeredness and satisfaction which will reflect acceptability of the AF program.
6 months
Most acceptable individual component of the AF program
時間枠：6 months
Data from qualitative interviews will be coded using a process analytic framework and inductive logic to create a set of conceptual categories using the Constant Comparative Method and used to compare the acceptability of individual component of AF programs including nutrition clinic, cardiac rehabilitation clinic, smoking cessation clinic, smart phone enable health devices.
6 months
Most adopted individual component of the AF program
時間枠：6 months
Quantitative measure of (actual clinic attendance or use of smart phone enable devices) / (expected clinic attendance or use of smart phone enable devices) will be compared for the various components of the AF program including nutrition clinic, cardiac rehabilitation clinic, smoking cessation clinic, Alivecor device, Fitbit device, smart blood pressure monitor, and smart scale. The individual component with the highest % attendance or use will be considered to be the most adopted individual component of the AF program.
6 months
Burden of atrial fibrillation
時間枠：Twice weekly for 6 months
Quantitative measure of telemetry data from Alivecor devices, participants will be instructed to transmit telemetry data twice weekly and during symptomatic AF episodes. Telemetry data showing AF will be used to determine number of AF episodes in each participant over time.
Twice weekly for 6 months
Atrial fibrillation symptoms
時間枠：6 months
quantitative measure of telemetry data from Alivecor devices and qualitative measures using The Atrial Fibrillation Effect on QualiTy of Life (AFEQT) questionnaire is a 20 question, 7 point Likert scale (1-7) instrument that takes about 5 minutes to complete and evaluates Health Related Quality of Life across 3 domains- symptoms (4 questions), daily activities (8 questions), and treatment concerns (6 questions). The range of scores are 20-140, lower scores are favorable.
6 months
Atrial fibrillation literacy
時間枠：6 months
AF Knowledge Questionnaire is a 34 question instrument that takes about 10 minutes to complete. It is a modified version of the Jessa Atrial fibrillation Knowledge Questionnaire (JAKQ) and contains questions about AF in general and about oral anticoagulation therapy.
6 months
Atrial Fibrillation Effect on Quality of Life
時間枠：6 months
The Atrial Fibrillation Effect on QualiTy of Life (AFEQT) questionnaire is a 20 question, 7 point Likert scale (1-7) instrument that takes about 5 minutes to complete and evaluates Health Related Quality of Life across 3 domains- symptoms (4 questions), daily activities (8 questions), and treatment concerns (6 questions). The range of scores are 20-140, lower scores are favorable.
6 months
Hospitalization for atrial fibrillation
時間枠：6 months
quantitative measure of number of hospitalization for atrial fibrillation or outcome attributed to atrial fibrillation
6 months

その他の成果指標

結果測定
メジャーの説明
時間枠
Weight loss
時間枠：6 months
Quantitative measure of total weight loss over the duration of the study
6 months

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

Boston Medical Center

協力者

BU Clinical Translational Science Institute

捜査官

  • 主任研究者：Robert Helm, MD、Boston Medical Center

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2018年2月1日

一次修了 (実際)

2020年5月11日

研究の完了 (実際)

2020年5月11日

試験登録日

最初に提出

2017年7月4日

QC基準を満たした最初の提出物

2017年8月23日

最初の投稿 (実際)

2017年8月24日

学習記録の更新

投稿された最後の更新 (実際)

2021年1月26日

QC基準を満たした最後の更新が送信されました

2021年1月23日

最終確認日

2020年5月1日

詳しくは

本研究に関する用語

キーワード

追加の関連 MeSH 用語

その他の研究ID番号

  • H-36040 (その他の助成金/資金番号：Boston Medical Center through CTSI)

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

米国で製造され、米国から輸出された製品。

はい

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。

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