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Breakthrough Platform Trial for PCAS (BPT-PCAS)

2026年8月12日 更新者:Yasuhiro Kuroda、Kagawa University

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

まだ募集していません

条件

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

介入

入学 (推定)

630

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。

研究連絡先

研究場所

    • Chiba
      • Chiba、Chiba、日本、2610012
        • Chiba Kaihin Municipal Hospital
        • コンタクト:
    • Fukuoka
      • Iizuka、Fukuoka、日本、8208505
    • Hiroshima
      • Hiroshima、Hiroshima、日本、7348551
        • Hiroshima University Hospital
        • コンタクト:
    • Hyōgo
      • Kobe、Hyōgo、日本、651-0073
        • Hyogo Emergency Medical Center
        • コンタクト:
    • Kagawa-ken
      • Kita-gun、Kagawa-ken、日本、761-0701
    • Kyoto
      • Kyoto、Kyoto、日本、6158256
        • Kyoto Katsura Hospital
        • コンタクト:
    • Miyagi
      • Sendai、Miyagi、日本、9838520
        • National Hospital Organization Sendai Medical Center
        • コンタクト:
    • Okayama-ken
      • Okayama、Okayama-ken、日本、7008558
        • Okayama University Hospital
        • コンタクト:
    • Saitama
      • Asaka、Saitama、日本、3510023
        • TMG Asaka Medical Center
        • コンタクト:
    • Tokyo
      • Bunkyō-Ku、Tokyo、日本、113-8603
        • Nippon Medical School Hospital
        • コンタクト:
      • Musashino、Tokyo、日本、1800023
      • Sumida-ku、Tokyo、日本、1308575
        • Tokyo Metropolitan Bokutoh Hospital
        • コンタクト:

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

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

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

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: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)

武器と介入

参加者グループ / アーム
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

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
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.
90 days after hospital admission
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

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
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
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
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

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

協力者

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 (推定)

2026年9月1日

一次修了 (推定)

2031年3月31日

研究の完了 (推定)

2031年6月30日

試験登録日

最初に提出

2026年8月12日

QC基準を満たした最初の提出物

2026年8月12日

最初の投稿 (実際)

2026年8月17日

学習記録の更新

投稿された最後の更新 (実際)

2026年8月17日

QC基準を満たした最後の更新が送信されました

2026年8月12日

最終確認日

2026年8月1日

詳しくは

本研究に関する用語

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?

未定

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

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