NCT06192199

Brief Summary

From January 1, 2023 to December 30, 2023, patients who were suspected of pulmonary embolism and underwent CTPA examination at Nanyang Hospital of Southern Medical University were divided into pulmonary embolism group and non pulmonary embolism group. 1. Collect relevant data, including gender, age, primary disease, CTPA imaging and reports, BNP, troponin, electrocardiogram, cardiac ultrasound, PT, APTT, TT, fibrinogen, D-dimer, etc., and analyze demographic data, pulmonary embolism risk grading, APTT/fibrinogen ratio, and determine their cut-off values through statistical analysis of the two groups. 2. Follow up on the APTT/fibrinogen ratio after anticoagulation treatment and bleeding in the pulmonary embolism group.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
800

participants targeted

Target at P75+ for all trials

Timeline
7mo left

Started Jan 2018

Longer than P75 for all trials

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress94%
Jan 2018Dec 2026

Study Start

First participant enrolled

January 1, 2018

Completed
6 years until next milestone

First Submitted

Initial submission to the registry

December 14, 2023

Completed
22 days until next milestone

First Posted

Study publicly available on registry

January 5, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2025

Completed
1.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Expected
Last Updated

April 16, 2025

Status Verified

January 1, 2025

Enrollment Period

7.3 years

First QC Date

December 14, 2023

Last Update Submit

April 13, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Cutoff value of APTT/FIB between patients with and without acute pulmonary embolism

    2024.01-2026.12

Study Arms (2)

Patients with acute pulmonary embolism

Diagnostic Test: 2018 edition of the Guidelines for Diagnosis

Patients without acute pulmonary embolism

Diagnostic Test: 2018 edition of the Guidelines for Diagnosis

Interventions

According to the 2018 edition of the Guidelines for Diagnosis, Treatment and Prevention of Pulmonary Thromboembolism, and based on inclusion and exclusion criteria, enrolled patients were divided into a pulmonary embolism group and a non pulmonary embolism group

Patients with acute pulmonary embolismPatients without acute pulmonary embolism

Eligibility Criteria

Age18 Years+
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

From January 1, 2023 to December 30, 2023, the patients were diagnosed with suspected pulmonary embolism at the Southern Hospital of Southern Medical University and underwent enhanced pulmonary artery scanning examination. According to the 2018 edition of the Guidelines for Diagnosis, Treatment and Prevention of Pulmonary Thromboembolism, and based on inclusion and exclusion criteria, enrolled patients were divided into a pulmonary embolism group and a non pulmonary embolism group

You may qualify if:

  • Voluntary signing of informed consent form;
  • When signing the informed consent form, the age is equal to or greater than 18 years old, regardless of gender;
  • From January 1, 2023 to December 30, 2023, the patient was diagnosed with suspected pulmonary embolism at the Southern Hospital of Southern Medical University and underwent enhanced pulmonary artery scanning examination.

You may not qualify if:

  • Patients with gastrointestinal bleeding, severe trauma, acute coronary syndrome, severe liver disease (childC grade), and coagulation dysfunction;
  • Patients with pulmonary embolism diagnosed outside the hospital and regular anticoagulation;
  • Patients undergoing regular anticoagulant therapy such as atrial fibrillation and valve replacement;
  • Patients deemed unsuitable for participation in this study by the researchers.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Nanfang hospital of Southern Medical University

Guangzhou, Guangdong, China

RECRUITING

MeSH Terms

Interventions

Diagnosis

Central Study Contacts

Xintong Huang

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 14, 2023

First Posted

January 5, 2024

Study Start

January 1, 2018

Primary Completion

May 1, 2025

Study Completion (Estimated)

December 1, 2026

Last Updated

April 16, 2025

Record last verified: 2025-01

Locations