UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059948
Receipt number R000068569
Scientific Title Effectiveness of Whole Blood Transfusion in Adult Patients with Traumatic Brain Injury: A Systematic Review and Meta-Analysis
Date of disclosure of the study information 2025/12/08
Last modified on 2025/12/02 15:52:32

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Basic information

Public title

Effectiveness of Whole Blood Transfusion in Adult Patients with Traumatic Brain Injury: A Systematic Review and Meta-Analysis

Acronym

Effectiveness of Whole Blood Transfusion in Adult Patients with Traumatic Brain Injury

Scientific Title

Effectiveness of Whole Blood Transfusion in Adult Patients with Traumatic Brain Injury: A Systematic Review and Meta-Analysis

Scientific Title:Acronym

Effectiveness of Whole Blood Transfusion in Adult Patients with Traumatic Brain Injury: A Systematic Review and Meta-Analysis

Region

Japan


Condition

Condition

traumatic brain injury

Classification by specialty

Emergency medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Balanced transfusion, in which plasma, platelets, and red blood cells are administered in fixed ratios, have been widely adopted as a standard approach for patients with severe trauma. In contrast, whole blood transfusion containing platelets has recently been evaluated as emerging evidence suggests a potential survival benefit in patients with traumatic hemorrhagic shock, particularly in the United States. However, most of these findings are derived from studies focusing on polytrauma, and the effectiveness of whole blood transfusion in patients with traumatic brain injury remains unclear.
This study aims to systematically identify and synthesize the existing literature on whole blood transfusion in patients with traumatic brain injury, and to evaluate its clinical effectiveness and safety through a systematic review and meta-analysis.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

mortality

Key secondary outcomes

1. Total transfusion volume (red blood cells, fresh frozen plasma, and platelet concentrates)
2. Complications: thrombosis (pulmonary embolism, deep vein thrombosis), acute kidney injury, pulmonary edema, acute respiratory distress syndrome, and infection


Base

Study type

Others,meta-analysis etc


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

16 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients aged 16 years or older with traumatic brain injury will be included. A comprehensive literature search will be conducted to capture a wide range of relevant studies. The characteristics of the retrieved studies will then be examined to ensure clinical and methodological consistency across patient populations, after which eligible studies will be selected for inclusion in the meta-analysis. Studies that do not meet the eligibility criteria but are considered relevant will be summarized narratively.

Key exclusion criteria

1. Studies not involving human subjects
2. Pediatric cases (patients younger than 16 years)
3. Subgroup analyses in which no traumatic brain injury cases are included
4. Single-arm studies, case reports, conference abstracts, or protocol-only publications
5. Articles not written in English

Target sample size



Research contact person

Name of lead principal investigator

1st name Tatsunori
Middle name
Last name Nagamura

Organization

National Defense Medical College

Division name

Traumatology and Critical Care Medicine

Zip code

3590042

Address

3-2 Namiki, Tokorozawa, Saitama

TEL

81-4-2995-1511

Email

tnaga0802@ndmc.ac.jp


Public contact

Name of contact person

1st name Tatsunori
Middle name
Last name Nagamura

Organization

National Defense Medical College

Division name

Traumatology and Critical Care Medicine

Zip code

3590042

Address

3-2 Namiki, Tokorozawa, Saitama

TEL

81-4-2995-1511

Homepage URL


Email

tnaga0802@ndmc.ac.jp


Sponsor or person

Institute

National Defense Medical College

Institute

Department

Personal name



Funding Source

Organization

self funding

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

National Defense Medical College

Address

3-2 Namiki, Tokorozawa, Saitama

Tel

81-4-2995-1511

Email

tnaga0802@ndmc.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 12 Month 08 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Open public recruiting

Date of protocol fixation

2025 Year 12 Month 02 Day

Date of IRB

2025 Year 12 Month 02 Day

Anticipated trial start date

2025 Year 12 Month 02 Day

Last follow-up date

2026 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Study population and selection:
Adults (16 years or older) with traumatic brain injury will be included. A comprehensive literature search will be conducted to identify relevant studies. Retrieved studies will be assessed for clinical and methodological consistency, and eligible studies will be included in the meta-analysis. Studies not meeting eligibility criteria but deemed relevant will be narratively summarized.

PICO:
Patient: 16 years or older with traumatic brain injury
Intervention: at least one unit of whole blood transfusion
Comparison: No whole blood transfusion
Outcome: Mortality

Study designs:
Randomized controlled trials and observational studies will be included. Observational studies must adjust for confounding (e.g., propensity score matching or inverse probability of treatment weighting).

Search strategy:
Searches will be performed in PubMed, CENTRAL, CINAHL, ICTRP, and ClinicalTrials.gov for studies published from January 1, 2006, to December 31, 2025.

Data extraction and risk of bias:
Two reviewers will independently extract data (authors, year, design, sample size, intervention/comparator details, outcomes). Risk of bias will be assessed using RoB 2 for RCTs and ROBINS-I for observational studies.

Statistical analysis:
Binary outcomes will be reported as risk ratios with 95% CIs; continuous outcomes as mean differences.

Planned subgroup analyses include:
1. TBI severity based on the Abbreviated Injury Scale (AIS) and Glasgow Coma Scale (GCS)
2. Presence versus absence of hemorrhagic shock


Management information

Registered date

2025 Year 12 Month 02 Day

Last modified on

2025 Year 12 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068569