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Ticagrelor Hemoadsorption Using Cytosorb® for Reduction of Bleeding During Cardiac Surgery (TICAdSORB)

2026年9月11日 更新者:University Hospital, Rouen

Ticagrelor Hemoadsorption Using Cytosorb® for Reduction of Bleeding During Cardiac Surgery - TICAdSORB

Cardiac surgery is at high risk of intraoperative bleeding. Inhibitors of the P2Y12 platelet receptor, such as ticagrelor, are recommended in patients with acute coronary stroke (ACS) to reduce the incidence of major cardiovascular events. Nevertheless, some patients may require coronary artery bypass graft under cardiac bypass after ticagrelor administration. This administration within 48 hours prior to surgery is associated with a significant increase in bleeding and related poor outcomes, notably because platelet transfusion fails to reverse ticagrelor induced platelet dysfunction. Conversely, waiting several days to plan surgery, in the idea of clearing blood from ticagrelor, exposes to a risk of ischemic recurrence.

Another situation where ticagrelor administration may impend prognosis is emergent aortic surgeries, including aortic dissection or aneurysm rupture. Ticagrelor is frequently administrated because symptoms can mimic ACS, but it may increase bleeding and transfusion by at least 50%.

Several case reports and cohorts described blood hemadsorption, using the Cytosorb® blood purification system (Cytosorb®ents, USA) as a reversal therapy for ticagrelor, reducing bleeding. Cytosorb® is a polymeric beads system with a large exchange surface, enabling the adsorption and removal of molecules of intermediate sizes (< 60 kDa). It has been described to reduce the plasma levels of ticagrelor, with a removal up to 75% after 60 min. It can be connected directly to the heart-lung machine. Its use during cardiac bypass is simple and has not described to induce additional hemolysis.

We hypothesize that the use of Cytosorb® hemoadsorption during cardiac bypass would reduce the incidence of moderate to massive bleeding in patients receiving ticagrelor within 48 hours prior to surgery.

調査の概要

研究の種類

介入

入学 (推定)

232

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

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:

  1. Patient or patient's representative having read and understood the information letter and signed the consent form
  2. Age ≥ 18 y/o
  3. Ticagrelor administration within 48 hours prior to surgery
  4. Cardiac surgery with cardiac bypass
  5. Patient affiliated with, or beneficiary of a social security (health insurance) category.
  6. Women of childbearing potential (a woman is considered of childbearing potential (WOCBP), i.e. fertile, following menarche and until becoming post-menopausal unless permanently sterile):

    1. with effective contraception (Cf. CTCG) (progestogen-only oral hormonal contraception, where inhibition of ovulation is not the primary mode of action, male or female condom with or without spermicide, cap, diaphragm or sponge with spermicide) since 1 month, during study period
    2. negative blood pregnancy test by b-HCG at inclusion.
  7. Women permanently sterile (hysterectomy, bilateral salpingectomy and bilateral oophorectomy)
  8. Postmenopausal women: A postmenopausal state is defined as no menses for 12 months without an alternative medical cause. A high follicle stimulating hormone (FSH) level in the postmenopausal range may be used to confirm a post-menopausal state in women not using hormonal contraception or hormonal replacement therapy. However in the absence of 12 months of amenorrhea, a single FSH measurement is insufficient.

Exclusion Criteria:

  1. Concomitant antiplatelet drugs or ongoing anticoagulants other than aspirin and heparin
  2. Ongoing systemic infection (including active endocarditis)
  3. Ongoing treatment with an antibiotic or antifungal at high risk of removal by Cytosorb®: teicoplanin, vancomycin, linezolid, gentamycin, amphotericin B liposomal, azole drugs or fluconazole
  4. Ongoing treatment with an anticonvulsant at high risk of removal by Cytosorb®: phenytoin, phenobarbital or valproic acid.
  5. Contraindications to Cytosorb® (known preoperative platelet count < 20 000/mm3, Sickle cell disease crisis, history to heparin-induced thrombopenia, body mass index ≥ 40 kg/m², hypersensitivity to a component, Any pre-existing contraindication to extracorporeal therapy (CPB))
  6. Cardiac surgery for ventricle assistance device or transplantation
  7. Preoperative critical state
  8. Chronic pathology with life expectancy less than 1 month
  9. Pregnant or breastfeeding women and women of child-bearing age not using effective means of contraception
  10. Absence of affiliation to a social security program
  11. Person deprived of liberty by an administrative or judiciary decision or person placed under judicial protection, under guardianship or supervision
  12. Person consenting to the research participating having participated to another trial within a period of one week
  13. Person participating to another interventional research

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:並列代入
  • マスキング:トリプル

武器と介入

参加者グループ / アーム
介入・治療
実験的:実験アーム
The Cytosorb® hemoadsorption cartridge is inserted into the cardiopulmonary bypass circuit immediately after the blood pump, with blood returned to the venous reservoir.
偽コンパレータ:control arm
A sham tubing line, made of the same polymer and with the same diameter as the Cytosorb® tubing, is connected at the same location in the cardiopulmonary bypass circuit without a hemoadsorption cartridge.

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
benefit of Cytosorb® in reducing perioperative bleeding of cardiac surgery
時間枠:within the 48 first hours post-CPB
Incidence of a moderate, severe or massive bleeding defined by an UDPB (Universal Definition for Perioperative Bleeding) score ≥ 2/4 within the 48 first hours post-CPB.
within the 48 first hours post-CPB

二次結果の測定

結果測定
メジャーの説明
時間枠
compare the distribution of bleeding severity between groups
時間枠:48 hours after surgery
Bleeding severity categorized according to the four-level UDPB classification within 48 hours post-CPB
48 hours after surgery
compare the intensity of intraoperative bleeding
時間枠:48 hours after surgery

The validated intraoperative bleeding severity scale defined by Lewis et al (Surgery 2017, doi: 10.1016/j.surg.2016.09.022)

The Lewis bleeding severity scale is scored based on visual assessment as follows:

0 = no bleeding

  1. = ooze or intermittent flow
  2. = continuous flow
  3. = controllable spurting and/or overwhelming flow
  4. = unidentified or inaccessible spurting or gush Based on anatomic appearance, it is scored from 0 (no bleeding) to 4 (central arterial- or venous-like bleeding).

Based on qualitative description, it ranges from 0 (no bleeding) to 4 (life-threatening bleeding).

Based on visually estimated rate of blood loss (mL/min), it is scored from 0 (≤1 mL/min) to 4 (>50 mL/min).

Although the scale includes four subscales, a single overall subjective score ranging from 0 to 4 is assigned based on the combined interpretation of all subscales.

48 hours after surgery
compare the surgical reintervention rate due to bleeding between groups
時間枠:90 days
A surgical reintervention for any cause will be considered within 90 days.
90 days
compare between groups, the risk of other hemorrhagic complications
時間枠:90 days
Other hemorrhagic complications, including intracranial
90 days
compare between groups the risk of major adverse cardiovascular events
時間枠:90 days
The Major adverse cardiovascular events is defined as the composite outcome of myocardial infarction, cerebral stroke, acute heart failure, death
90 days
compare between groups, the risk of any complication in the composite outcome of acute kidney injury
時間枠:90 days
AKI will be defined as KDIGO ≥ 1; Acute respiratory failure will be defined by prolonged mechanical ventilation > 12 hours, reintubation, non-invasive ventilatory support or high flow nasal cannula therapy;Infection, sepsis and septic shock, will be defined by the 2026 surviving sepsis campaign
90 days
compare quality of life between groups
時間枠:90 days
The EQ-5D-5L has 5 items with 5 likert levels leading to a score between 0% and 100% based on a specific population-dependent algorithm Higher scores indicate better quality of life (100% = very good health)
90 days
Red blood cell transfusion at 90 days
時間枠:Baseline to 90 days
Total number of red blood cell (RBC) units transfused within 90 days after baseline.
Baseline to 90 days
Fresh frozen plasma transfusion at 90 days
時間枠:Baseline to 90 days
Total number of fresh frozen plasma (FFP) units transfused within 90 days after baseline.
Baseline to 90 days
Prothrombin complex concentrate use at 90 days
時間枠:Baseline to 90 days
Total dose of Prothrombin Complex Concentrate (PCC) administered within 90 days after baseline, reported in international units (IU).
Baseline to 90 days
Platelet transfusion at 90 days
時間枠:Baseline to 90 days
Total number of platelet units transfused within 90 days after baseline.
Baseline to 90 days
Fibrinogen concentrate administration at 90 days
時間枠:Baseline to 90 days
Total dose of fibrinogen concentrate administered within 90 days after baseline, reported in grams (g).
Baseline to 90 days
Activated factor VII administration at 90 days
時間枠:Baseline to 90 days
Total dose of activated factor VII administered within 90 days after baseline, reported in grams (g).
Baseline to 90 days

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。

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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11月1日

一次修了 (推定)

2030年3月1日

研究の完了 (推定)

2030年3月1日

試験登録日

最初に提出

2026年8月18日

QC基準を満たした最初の提出物

2026年9月11日

最初の投稿 (実際)

2026年9月16日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月16日

QC基準を満たした最後の更新が送信されました

2026年9月11日

最終確認日

2026年9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

  • 2023/0300/HP
  • 2025-A02958-41 (レジストリ識別子:RCB)

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