A study of the association between postoperative venous thromboembolism and protein S specific activity.

A study of the association between postoperative venous thromboembolism and protein S specific activity. - A study of the association between postoperative venous thromboembolism and protein S specific activity.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000051555

Enrollment

200

Registered

2023-07-08

Start date

2022-12-27

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Venous thromboembolism (deep venous thromboembolism, pulmonary thromboembolism)

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (1) Patients with postoperative VTE (2) Patients who have obtained written consent for participation in this study from the research subject or a surrogate. (3) Patients who are at least 20 years of age at the time consent is obtained.

Exclusion criteria

Exclusion criteria: (1) Patients who did not give their consent (2) Patients who did not undergo blood tests (3) Patients who are (or will be) using unapproved drugs such as investigational drugs (4) Other patients whom the investigator deems inappropriate as research subjects.

Design outcomes

Primary

Measure	Time frame
Protein S protein levels, activity, and specific activity in patients who develop VTE.	—

Secondary

Measure	Time frame
Investigation of the relationship between protein S specific activity and other coagulation factor markers.	—

Countries

Japan

Contacts

Public ContactTaku Nakagawa

Kyushu University Hospital operating rooms

anestack1015@gmail.com092-642-5714

Outcome results