Breakthrough Platform Trial for PCAS (BPT-PCAS)
Breakthrough Platform Trial for Post Cardiac Arrest Syndrome
The goal of this platform clinical trial is to evaluate whether specific post-cardiac arrest care strategies can improve neurological recovery and survival in adult patients who remain comatose after return of spontaneous circulation (ROSC) following cardiac arrest and require intensive care management.
This multicenter cluster-randomized crossover platform trial (BPT-PCAS) evaluates post-cardiac arrest care strategies within a shared master protocol structure. Participating hospitals are randomized at the institutional level to predefined treatment strategies for fixed study periods and subsequently cross over to alternative strategies according to a predefined allocation schedule.
The platform is designed to accommodate multiple independent intervention domains, each evaluating a different post-cardiac arrest care strategy under shared eligibility criteria, infrastructure, data management systems, and follow-up procedures. Participants may be enrolled in one or more active intervention domains according to platform availability and eligibility.
Participants will receive the post-cardiac arrest care strategy assigned to their participating hospital during the study period while otherwise undergoing standard intensive care management according to local practice and study protocols.
Participants will be followed for neurological outcomes including modified Rankin Scale (mRS), mortality, and safety outcomes at hospital discharge, 30 days, and 90 days after hospital admission.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
BPT-PCAS (Breakthrough Platform Trial for Post-Cardiac Arrest Syndrome) is a multicenter platform trial designed to evaluate whether early post-cardiac arrest care strategies can improve neurological recovery and survival in adult patients who remain comatose after return of spontaneous circulation (ROSC) following cardiac arrest and require intensive care management.
Despite advances in resuscitation and intensive care medicine, prognosis after post-cardiac arrest syndrome (PCAS) remains poor, particularly because of hypoxic-ischemic brain injury and systemic circulatory dysfunction. Many aspects of post-resuscitation intensive care management, including positioning strategies and targeted temperature management, are widely used in clinical practice but remain supported by limited high-quality randomized evidence, particularly during the ultra-early post-ROSC period.
BPT-PCAS is designed as a pragmatic multicenter cluster-randomized crossover platform trial conducted in Japan. Participating hospitals are randomized at the institutional level to predefined treatment strategies for fixed study periods. Hospitals subsequently cross over to alternative treatment strategies every 6 months according to a predefined allocation schedule. Randomization occurs at the hospital level rather than the individual patient level in order to facilitate immediate implementation of time-sensitive post-cardiac arrest interventions during emergency care.
The platform uses a master protocol structure with shared eligibility criteria, infrastructure, data management systems, and follow-up procedures across multiple intervention domains. Adult patients with persistent coma after ROSC who require intensive care are screened for eligibility under the master protocol. Individual domains may apply additional domain-specific inclusion and exclusion criteria.
The current platform includes multiple intervention domains evaluating different post-cardiac arrest care strategies.
One domain evaluates early head positioning strategies during intensive care management. This domain compares head elevation positioning (30°-45°) with near-supine positioning (0°-10°) initiated early after ICU admission in order to determine whether head positioning influences neurological recovery, mortality, and complications associated with cerebral perfusion, intracranial pressure, or respiratory management.
Another domain evaluates early targeted temperature management strategies in patients with non-shockable cardiac arrest rhythms. This domain compares early hypothermia (33-34°C) with normothermia (36-37.5°C) initiated as early as possible after ROSC in order to evaluate whether early temperature control improves neurological outcomes and survival.
Participants may simultaneously participate in more than one intervention domain when eligibility criteria are met. Aside from the assigned study interventions, all other intensive care management is performed according to local institutional practice and study protocols.
The primary and secondary outcomes differ according to each intervention domain and include neurological outcomes assessed using the modified Rankin Scale (mRS), mortality, and predefined safety outcomes. Follow-up assessments are performed during hospitalization and at 30 and 90 days after hospital admission.
Because eligible patients are critically ill and frequently incapable of providing prospective informed consent at the time of enrollment, this study permits deferred consent procedures in accordance with Japanese ethical guidelines for emergency research. Consent from legally acceptable representatives or patients themselves is obtained as soon as feasible after hospital admission whenever possible.
The study also includes predefined interim analyses and centralized data management using REDCap-based electronic data capture systems. Statistical analyses are performed using intention-to-treat principles with methods appropriate for cluster-randomized crossover trial designs.
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- 適用できない
連絡先と場所
研究連絡先
研究連絡先
- 名前:Yasuhiro Kuroda, M.D, Ph.D
- 電話番号:+81-87-891-2392
- メール:bpt-pcas@googlegroups.com
研究場所
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Chiba
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Chiba、Chiba、日本、2610012
- Chiba Kaihin Municipal Hospital
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コンタクト:
- Yosuke Homma
- 電話番号:+81-43-277-7711
- メール:jazz.dr.homma@gmail.com
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Fukuoka
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Iizuka、Fukuoka、日本、8208505
- Aso Iizuka Hospital
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コンタクト:
- Daisuke Kawakami
- 電話番号:+81-948-22-3800
- メール:dsk_kwkm_n9s@hotmail.co.jp
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Hiroshima
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Hiroshima、Hiroshima、日本、7348551
- Hiroshima University Hospital
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コンタクト:
- Mitsuaki Nishikimi
- 電話番号:+81-82-257-5456
- メール:nishikim@hiroshima-u.ac.jp
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Hyōgo
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Kobe、Hyōgo、日本、651-0073
- Hyogo Emergency Medical Center
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コンタクト:
- Takeshi Nishimura
- 電話番号:+87-78-241-3131
- メール:t-nishimura@hemc.jp
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Kagawa-ken
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Kita-gun、Kagawa-ken、日本、761-0701
- Kagawa University Hospital
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コンタクト:
- Kenya Kawakita
- 電話番号:+81-87-891-2382
- メール:kawakita.kenya@kagawa-u.ac.jp
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Kyoto
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Kyoto、Kyoto、日本、6158256
- Kyoto Katsura Hospital
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コンタクト:
- Taiga Sunada
- 電話番号:+81-75-391-5811
- メール:sunada.taiga@gmail.com
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Miyagi
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Sendai、Miyagi、日本、9838520
- National Hospital Organization Sendai Medical Center
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コンタクト:
- Yu Kawazoe
- 電話番号:+81-22-293-1111
- メール:yu.kawazoe.b7@tohoku.ac.jp
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Okayama-ken
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Okayama、Okayama-ken、日本、7008558
- Okayama University Hospital
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コンタクト:
- Tetsuya Yumoto
- 電話番号:+81-86-235-7427
- メール:tyumoto@cc.okayama-u.ac.jp
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Saitama
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Asaka、Saitama、日本、3510023
- TMG Asaka Medical Center
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コンタクト:
- Yusuke Morohashi
- 電話番号:+81-48-466-2055
- メール:yskmoro.yuyu0507@gmail.com
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Tokyo
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Bunkyō-Ku、Tokyo、日本、113-8603
- Nippon Medical School Hospital
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コンタクト:
- Toru Takiguchi
- 電話番号:+81-3-3822-2131
- メール:toru-takiguchi@nms.ac.jp
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Musashino、Tokyo、日本、1800023
- Musashino Red Cross Hospital
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コンタクト:
- Hidetaka Suzuki
- 電話番号:+81-422-32-3111
- メール:h.suzuki@musashino.jrc.or.jp
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Sumida-ku、Tokyo、日本、1308575
- Tokyo Metropolitan Bokutoh Hospital
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コンタクト:
- Kazuhiro Sugiyama
- 電話番号:+81-3-3633-6151
- メール:kazusugi0422@hotmail.com
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参加基準
適格基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
Master Platform Eligibility:
- Adult patients aged 18 years or older
- Return of spontaneous circulation after cardiac arrest
- Persistent coma after return of spontaneous circulation (GCS motor score <6)
- Requirement for intensive care management
Head Positioning Domain Eligibility:
- Non-traumatic out-of-hospital or in-hospital cardiac arrest
- Systolic blood pressure ≥80 mmHg or mean arterial pressure ≥65 mmHg (fluid resuscitation and vasopressor use permitted; transient hypotension recoverable within 20-30 minutes is acceptable)
Temperature Control Domain Eligibility:
- Initial non-shockable cardiac arrest rhythm
- Systolic blood pressure ≥80 mmHg or mean arterial pressure ≥65 mmHg (fluid resuscitation and vasopressor use permitted; transient hypotension recoverable within 20-30 minutes is acceptable)
- Ability to initiate temperature control therapy within 240 minutes after return of spontaneous circulation
Exclusion Criteria:
Master Platform Exclusion:
- Refusal of intensive care management
- Extracorporeal cardiopulmonary resuscitation (ECPR)
- Pregnancy or possible pregnancy
- Cardiac arrest due to intracranial hemorrhage, subarachnoid hemorrhage, cerebral infarction, acute aortic dissection, or terminal cancer (including suspected cases)
- Severe chronic obstructive pulmonary disease requiring home oxygen therapy
- Poor pre-arrest neurological function (CPC 3-4) or poor overall functional status (OPC 3-4)
- Pre-existing do-not-attempt-resuscitation (DNAR) order
- Expected early death
- Inability to obtain consent from a legally acceptable representative or the participant
- Enrollment judged inappropriate by the investigator
Head Positioning Domain Exclusion:
- Body temperature <30°C on hospital arrival
- Refusal of consent for participation in the head positioning domain
- Enrollment judged inappropriate by the investigator
- Patients using Impella® (a percutaneous mechanical circulatory support catheter) at the time of ICU admission
- Patients using an intra-aortic balloon pump (IABP) at the time of ICU admission
- Patients for whom feedback-controlled device-based temperature management or fever prevention is not being performed and is not planned at the time of ICU admission
Temperature Control Domain Exclusion:
- rCAST <4.5
- rCAST ≥17.0
- Traumatic cardiac arrest
- Body temperature <30°C on hospital arrival
- Refusal of consent for participation in the temperature control domain
- Enrollment judged inappropriate by the investigator
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:処理
- 割り当て:ランダム化
- 介入モデル:クロスオーバー割り当て
- マスキング:なし(オープンラベル)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Head Positioning Strategy (near-supine vs head elevation)
Participants receive institutionally assigned post-cardiac arrest head positioning strategies according to the cluster-randomized crossover platform protocol, including head elevation (30°-45°) or near-supine positioning (0°-10°).
|
Institution-level assignment to predefined head positioning strategies during post-cardiac arrest intensive care management, including head elevation (30°-45°) or near-supine positioning (0°-10°).
|
|
実験的:Temperature Control Strategy (hypothermia vs normothermia)
Participants receive institutionally assigned post-cardiac arrest temperature control strategies according to the cluster-randomized crossover platform protocol, including targeted hypothermia (33-34°C) or normothermia/fever prevention strategies (36-37.5°C).
|
Institution-level assignment to predefined temperature control strategies during post-cardiac arrest intensive care management, including targeted hypothermia (33-34°C) or normothermia/fever prevention strategies (36-37.5°C).
|
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Favorable neurological outcome (modified Rankin Scale ≤3) on Day 90 in the head positioning domain
時間枠:90 days after hospital admission
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Comparison of Favorable neurological outcome (modified Rankin Scale ≤3) on Day 90 between institutionally assigned head positioning strategies in adult patients with post-cardiac arrest syndrome.
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90 days after hospital admission
|
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Favorable neurological outcome (modified Rankin Scale ≤3) on Day 90 in the temperature control domain
時間枠:90 days after hospital admission
|
Comparison of neurological outcomes between institutionally assigned temperature control strategies in adult patients with post-cardiac arrest syndrome and non-shockable initial rhythms.
|
90 days after hospital admission
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
mRS ≤3 on Day 30
時間枠:30 days after hospital admission
|
Comparison of neurological outcome (mRS ≤3) on Day 30 between institutionally assigned head positioning strategies in adult patients with post-cardiac arrest syndrome.
|
30 days after hospital admission
|
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mRS ≤3 on Day 30
時間枠:30 days after hospital admission
|
Comparison of neurological outcome (mRS ≤3) on Day 30 between institutionally assigned temperature control strategies in adult patients with post-cardiac arrest syndrome and non-shockable initial rhythms.
|
30 days after hospital admission
|
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All-cause mortality on Day 30 and Day 90
時間枠:30 days and 90 days after hospital admission
|
Comparison of all-cause mortality on Day 30 and Day 90 between institutionally assigned head positioning strategies in adult patients with post-cardiac arrest syndrome.
|
30 days and 90 days after hospital admission
|
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All-cause mortality on Day 30 and Day 90
時間枠:30 days and 90 days after hospital admission
|
Comparison of all-cause mortality on Day 30 and Day 90 between institutionally assigned temperature control strategies in adult patients with post-cardiac arrest syndrome and non-shockable initial rhythms.
|
30 days and 90 days after hospital admission
|
協力者と研究者
協力者
協力者
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
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
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
その他の研究ID番号
- bpt-pcas
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?
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