NCT06613425

Brief Summary

Platelet transfusion is an irreplaceable and important treatment method for clinical prevention and treatment of thrombocytopenia or platelet dysfunction. Due to various factors, it is difficult to achieve platelet ABO complete homotypic transfusion in clinical practice. When ABO-compatible platelets cannot be obtained, plasma-reduced platelets, platelets with low anti-A or anti-B titers are often used in clinical practice to reduce the risk of ABO-incompatible platelet-compatible transfusion reactions. The combined platelets prepared in this study can achieve ABO primary and secondary side compatible infusion.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
86

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Aug 2024

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2024

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

August 28, 2024

Completed
29 days until next milestone

First Posted

Study publicly available on registry

September 26, 2024

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 29, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 28, 2025

Completed
Last Updated

September 26, 2024

Status Verified

September 1, 2024

Enrollment Period

12 months

First QC Date

August 28, 2024

Last Update Submit

September 23, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Efficacy evaluation of combined platelet transfusion

    The platelet count was measured before blood transfusion and 1 hour and 24 hours after blood transfusion, and the WHO bleeding grade was recorded. The platelet incremental correction index ( CCI ) was calculated at 1 hour and 24 hours after infusion. CCI \> 7.5 at 1 hour, CCI \> 4.5 at 24 hours, or the control or improvement of WHO bleeding symptoms after infusion were effective for infusion. CCI = ( PLT after infusion-PLT before infusion ) × body surface area ( m2 ) × 1000 / total platelet count ( × 1011 ), body surface area = 0.0061 × height ( cm ) + 0.0128 × weight ( Kg ) - 0.1529. PPR ( % ) = ( PLT after infusion-PLT before infusion ) × blood volume ( L ) × 100 % / total platelet count × 2 / 3, blood volume = 0.07 × body weight ( Kg ).

    From the start of infusion of combined platelets to 6 months later

Secondary Outcomes (7)

  • Adverse reactions of blood transfusion

    From the start of infusion of combined platelets to 6 months later

  • Safety evaluation of combined platelet transfusion

    From the start of infusion of combined platelets to 6 months later

  • Platelet antibody screening

    From the start of infusion of combined platelets to 6 months later

  • Adverse events of blood transfusion

    From the start of infusion of combined platelets to 6 months later

  • Waiting time for platelet transfusion

    From the start of infusion of combined platelets to 6 months later

  • +2 more secondary outcomes

Study Arms (1)

Experimental group

EXPERIMENTAL

Combined platelet

Combination Product: Combined platelets

Interventions

Combined plateletsCOMBINATION_PRODUCT

1 therapeutic dose combined platelet contained no less than 2.5 ×10\^11 platelets as a quality standard.

Experimental group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • \. Aged 18-65 years; 2. Disease treatment in the research hospital; 3. Applied for platelet transfusion therapy.

You may not qualify if:

  • \. One month before the start of this study, he participated in other clinical trials of drugs and instruments related to platelet transfusion efficacy; 2. Without platelet transfusion indications; 3. Only received platelet transfusion in the outpatient department and left the hospital without efficacy evaluation after transfusion; 4. Gave up platelet transfusion therapy for any reason after enrollment; 5. Transferred or discharged from hospital for any reason before platelet transfusion after enrollment; 6. Did not receive combined platelet transfusion during the 6-month treatment period after enrollment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Li Zhang

Chengdu, Sichuan, 610083, China

RECRUITING

MeSH Terms

Conditions

Hematologic Diseases

Condition Hierarchy (Ancestors)

Hemic and Lymphatic Diseases

Study Officials

  • zhang li

    The General Hospital of Weastern Theater Command

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PHD,Professor

Study Record Dates

First Submitted

August 28, 2024

First Posted

September 26, 2024

Study Start

August 1, 2024

Primary Completion

July 29, 2025

Study Completion

October 28, 2025

Last Updated

September 26, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

Locations