- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07748663
Blood Transfusion Strategies During Major Surgery (TOPGUN)
The TOPGUN Trial: Threshold for Operative and Postoperative Hemoglobin Trigger for Red Blood Cell Transfusion
The goal of this randomized clinical trial is to address the uncertainty surrounding blood transfusion strategies in the operating room for adult patients undergoing major surgery. The main question it aims to answer is:
Does a higher hemoglobin threshold for blood transfusion during surgery reduce the risk of serious complications or death after surgery compared with a lower hemoglobin threshold?
Researchers will compare a liberal and a restrictive transfusion strategy during surgery and the first few hours of recovery.
Participants will be randomly assigned to one of two blood transfusion strategies. Blood transfusions will be given to maintain either a higher hemoglobin level (90-100 g/L) or a lower hemoglobin level (70-80 g/L) during surgery and while in the recovery room after surgery. Participants will also complete questionnaires about their quality of life and recovery at 30 and 90 days after surgery.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
- Nom: Zanna L Vanterpool, MSc
- Numéro de téléphone: 71484 613-737-8899
- E-mail: zvanterpool@ohri.ca
Lieux d'étude
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Ontario
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Ottawa, Ontario, Canada
- The Ottawa Hospital
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Contact:
- Zanna L Vanterpool, MSc
- Numéro de téléphone: 71484 613-737-8899
- E-mail: zvanterpool@ohri.ca
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Quebec
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Montreal, Quebec, Canada
- Centre Hospitalier de l'Université de Montréal
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-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- Adult patients, age ≥18.
- Elective or urgent surgery.
- Risk of red blood cell transfusion of at least 10 percent.
- Preoperative hemoglobin of less than 130 g/L.
- Intraoperative hemoglobin of < 100 g/L at any time during surgery.
Exclusion Criteria:
- Active major hemorrhage as indication for surgery (e.g. ruptured aneurysm, polytrauma, etc.)
- Acute coronary syndrome or myocardial infarction within the past 6 weeks.
- Cardiac surgery, lung transplantation, or liver transplantation as the indication for surgery (a history of such surgery is allowed)
- Surgery for moderate to severe (Glasgow Coma Scale (GCS) score ≤ 12) traumatic brain injury
- Sickle cell disease (sickle cell trait is allowed)
- Pregnancy or obstetrical surgery
- Patient refusal of blood products
- Inability to provide consent
- Previous randomization in the TOPGUN(-Pilot) trial
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Stratégie transfusionnelle restrictive
La stratégie transfusionnelle restrictive consistera à administrer une transfusion de globules rouges lorsque le taux d'hémoglobine du participant est mesuré en dessous de 70 g/L ou à maintenir une plage cible d'hémoglobine de 70 à 80 g/L.
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Transfusion de globules rouges lorsque le taux d'hémoglobine du participant est mesuré en dessous de 70 g/L ou pour maintenir une plage cible d'hémoglobine de 70 à 80 g/L.
Cette stratégie sera respectée pendant la chirurgie et jusqu'à 6 heures dans l'unité de soins d'anesthésie postopératoire.
|
|
Expérimental: Liberal transfusion strategy
The liberal transfusion strategy will consist of administering red blood cell transfusion when the participant's hemoglobin level is measured below 90 g/L or to maintain a hemoglobin target range of 90-100 g/L.ed to during surgery and up to 6 hours in the post-operative anesthesia care unit.
|
Transfusion de globules rouges lorsque le taux d'hémoglobine du participant est mesuré en dessous de 90 g/L ou pour maintenir une plage cible d'hémoglobine de 90 à 100 g/L.
Cette stratégie sera respectée pendant la chirurgie et jusqu'à 6 heures dans l'unité de soins d'anesthésie postopératoire.
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
30-day overall morbidity or mortality
Délai: From randomization to 30 days post-surgery
|
Overall postoperative morbidity and mortality within 30 days after surgery, assessed using the Comprehensive Complication Index (CCI).
Complications will be identified using the Postoperative Morbidity Survey (POMS) and graded according to the Clavien-Dindo classification.
The CCI summarizes all postoperative complications into a continuous score ranging from 0 (no complications) to 100 (death), with higher scores indicating greater postoperative morbidity.
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From randomization to 30 days post-surgery
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
30-day individual perioperative complications
Délai: From randomization to 30 days post-surgery
|
The occurrence of individual perioperative complications will be captured using the Postoperative Morbidity Survey (POMS).
Complications will be categorized according to the POMS domains, including pulmonary, infectious, renal, gastrointestinal, cardiovascular, neurological, wound, hematological, and pain-related morbidity.
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From randomization to 30 days post-surgery
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90-day mortality
Délai: From randomization to 90 days post-surgery
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All-cause mortality within 90 days after surgery, assessed through participant follow-up and review of the medical record.
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From randomization to 90 days post-surgery
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Blood product transfusions (intraoperative and postoperative)
Délai: From randomization to 30 days post-surgery
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Number of and type of blood product transfusions
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From randomization to 30 days post-surgery
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Change in hemoglobin
Délai: From preoperative to 30 days post-surgery
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Change in hemoglobin concentration from preoperative baseline through the perioperative and postoperative period, assessed using routine laboratory measurements and reported in grams per liter (g/L).
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From preoperative to 30 days post-surgery
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Estimated blood loss
Délai: During surgery
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Estimated blood loss in mL as noted in the operative report or anesthesia record
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During surgery
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Intensive care admission
Délai: From randomization to 30 days post-surgery
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Occurrence of admission to an intensive care unit (ICU)
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From randomization to 30 days post-surgery
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Post-operative length of stay
Délai: From randomization to hospital discharge (up to 30 days post-surgery)
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Number of days from the date of surgery to the date of discharge from the index hospitalization
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From randomization to hospital discharge (up to 30 days post-surgery)
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Readmission to hospital
Délai: From discharge to 30 days post-surgery
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Occurrence of readmission to a hospital
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From discharge to 30 days post-surgery
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Patient-reported disability
Délai: 30 and 90 days post-surgery
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Functional status and disability will be assessed using the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0).
The WHODAS 2.0 evaluates functioning across six domains: cognition, mobility, self-care, getting along with others, life activities, and participation in society.
Higher scores indicate greater disability and functional impairment.
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30 and 90 days post-surgery
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Patient-reported quality of life
Délai: 30 and 90 days post-surgery
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Patient-reported health-related quality of life will be assessed using the EuroQol 5-Dimension 5-Level (EQ-5D-5L) questionnaire.
The EQ-5D-5L evaluates mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.
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30 and 90 days post-surgery
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Disease-free and overall survival (participants undergoing cancer resection)
Délai: 3 and 5 years post-surgery
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For participants undergoing cancer resection, disease-free survival and overall survival will be assessed at 3 and 5 years after surgery through review of the electronic medical record.
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3 and 5 years post-surgery
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Daniel McIsaac, MD, The Ottawa Hospital
- Chercheur principal: Guillaume Martel, MD, MSc, FRCSC, FACS, Ottawa Hospital Research Institute
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Autres numéros d'identification d'étude
- CTO 5736
- 20260417-01T (Autre identifiant: OHSN-REB)
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Délai de partage IPD
Critères d'accès au partage IPD
Qualified researchers may access coded individual participant data and relevant supporting study documents upon reasonable request. Requests must be submitted to the Principal Investigator and include a detailed research proposal.
Access will be subject to review and approval by the Study Steering Committee, institutional review boards (if applicable), and execution of a signed data access agreement.
Informations sur les médicaments et les dispositifs, documents d'étude
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