Accent Cardiac MRI Study (Accent Cardiac)
A Clinical Evaluation of the Safety and Efficacy of St. Jude Medical (SJM) Magnetic Resonance Imaging (MRI) Conditional Pacing System in Patients Undergoing Cardiac MRI
調査の概要
詳細な説明
Accent Cardiac MRI study was a prospective, randomized ,multi-center study conducted in Asia. Subjects indicated for dual-chamber pacemaker and who signed study consent form were considered enrolled and post implant were randomized to either Cardiac MRI Scan Group or Control Group.
Clinical evaluation and device interrogation were performed at baseline, pre- and post-MRI scan, and one month post-MRI for all subjects. At 9-12 weeks post-implant, patients in Cardiac MRI Scan Group underwent an elective non-diagnostic cardiac MRI scan at 1.5 Tesla (T) while patients in Control group underwent device interrogation and clinical evaluation twice with a 45-minute waiting period in between. The safety endpoint was freedom from MRI-related complications while efficacy endpoint was change in right atrial/ ventricular (RA/RV) capture threshold and sensing amplitude from pre-MRI scan to one month post-MRI scan.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Ahmedabad、インド
- Care Institute of Medical Sciences
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Bhubaneshwar、インド
- Apollo Hospitals, Bhubaneshwar
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Gurgaon、インド
- Medanta - The Medicity Hospital
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New Delhi、インド
- All India Institute of Medical Sciences, New Delhi
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New Delhi、インド
- Fortis Escorts Heart Institute and Research Center
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New Delhi、インド
- Fortis Flt. Lt. Rajan Dhall Hospital
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Punjab
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Mohali、Punjab、インド
- Fortis Hospital
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Bangkok、タイ
- Siriraj Hospital
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Bangkok、タイ
- Ramathibodi Hospital
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Bangkok、タイ
- King Chulalongkorn Memorial Hospital
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Kajang、マレーシア
- Serdang Hospital
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Hangzhou、中国
- Zhejiang Greentown Cardiovascular Disease Hospital
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Hong Kong、香港
- Prince of Wales Hospital
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria
- Have an approved indication per American College of Cardiology(ACC)/ American Heart Association(AHA)/ Heart Rhythm Society(HRS)/ European Society of Cardiology(ESC) guidelines for implantation of a pacemaker
- Will receive a new dual chamber pacemaker and leads
- Be willing to undergo an elective MRI scan without complete sedation, that is ,under consciousness during MRI scan
- Be able to provide informed consent for study participation
- Be willing and able to comply with the prescribed follow-up tests and schedule of evaluations
- Is not contraindicated for an MRI scan (per the pre-MRI safety screening form)
- Age≥18 years
- Subjects must be able to undergo pectoral implantation
Exclusion Criteria
- Having an existing pacemaker or Implantable Cardioverter Defibrillator (ICD) .A new pacemaker and lead is required for enrollment
- Permanent Atrial Fibrillation/Flutter
- Are medically indicated for an MRI scan at the time of enrollment
- Have an existing active implanted medical device, e.g. neurostimulator, infusion pump etc
- Have a non-MRI compatible device or material implanted
- Have a lead extender or adaptor
- Be unable to fit in MRI bore; will come into contact with the magnet façade inside the MRI bore
- Are currently participating in a clinical investigation that includes an active treatment arm
- Are allergic to dexamethasone sodium phosphate(DSP)
- Are pregnant or planning to become pregnant during the duration of the study
- Have a life expectancy of less than 12 months due to any condition
- Subjects with exclusion criteria required by local law (e.g. age)
- Are unable to comply with the follow up schedule
研究計画
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:支持療法
- 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 |
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介入なし:対照群
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実験的:Cardiac MRI Scan Group
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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 |
|---|---|---|
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Freedom From MRI Scan-related Complications
時間枠:MRI Visit ,1 Month Post MRI Visit
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Number of subjects who were free from MRI scan-related complications
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MRI Visit ,1 Month Post MRI Visit
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Change in Right Atrial (RA) Capture Threshold @0.5 Millisecond (ms) From Pre-MRI Scan to 1 Month After MRI Scan
時間枠:MRI Visit ,1 Month Post MRI Visit
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Number of subjects who experienced an increase in RA capture threshold @ 0.5 ms at 1-Month post MRI scan visit ≤ 0.5 Volt (V) compared to pre-MRI scan value collected at MRI scan visit
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MRI Visit ,1 Month Post MRI Visit
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Change in Right Ventricular (RV) Capture Threshold @0.5ms From Pre-MRI Scan to 1 Month After MRI Scan
時間枠:MRI Visit, 1 Month Post MRI Visit
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Number of subjects who experienced an increase in RV capture threshold @ 0.5 ms at 1-Month post MRI scan visit ≤ 0.5 V compared to pre-MRI scan value collected at MRI scan visit
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MRI Visit, 1 Month Post MRI Visit
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Change in RA Sensing Amplitude From Pre-MRI Scan to 1 Month After MRI Scan
時間枠:MRI Visit, 1 Month Post MRI Visit
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Number of subjects who experienced a decrease in RA sensing amplitude ≤ 50% and at least 1.5 mV at 1-Month post MRI scan visit compared to pre-MRI scan value collected at MRI scan visit
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MRI Visit, 1 Month Post MRI Visit
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Change in RV Sensing Amplitude From Pre-MRI Scan to 1 Month After MRI Scan
時間枠:MRI Visit, 1 Month Post MRI Visit
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Number of subjects who experienced a decrease in RV sensing amplitude ≤ 50% and at least 5 mV at 1-Month post MRI scan visit compared to pre-MRI scan value collected at MRI scan visit
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MRI Visit, 1 Month Post MRI Visit
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協力者と研究者
スポンサー
捜査官
- 主任研究者:Chi Keong Ching, Dr、National Heart Center Singapore
- 主任研究者:Rabindra Nath Chakraborty, Dr、Apollo Gleneagles Hospital Kolkata India
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
- CR-13-031-AP-LV
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?
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
米国FDA規制機器製品の研究
米国で製造され、米国から輸出された製品。
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。