NCT06194617

Brief Summary

There's no unified recommendation in clinical practice regarding adjusting dosages for different patient types, especially when adverse events occur. While rivaroxaban typically doesn't require coagulation monitoring, in elderly patients, particularly those with multiple medications, finding appropriate lab indicators becomes crucial to gauge its anticoagulant effect. This aids in evaluating precise rivaroxaban dosing for the elderly, balancing bleeding risks and recurrence. Clinical pharmacological studies suggest that drug pharmacokinetics and pharmacodynamics in different populations can guide dosage optimization. Hence, this study aims to provide a basis for optimizing dosing regimens in high-risk elderly patients in China by exploring pharmacokinetic and pharmacodynamic indicators in clinical practice.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
5mo left

Started Apr 2021

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 Progress93%
Apr 2021Sep 2026

Study Start

First participant enrolled

April 1, 2021

Completed
2.7 years until next milestone

First Submitted

Initial submission to the registry

December 22, 2023

Completed
17 days until next milestone

First Posted

Study publicly available on registry

January 8, 2024

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2026

Last Updated

January 8, 2024

Status Verified

December 1, 2023

Enrollment Period

5.5 years

First QC Date

December 22, 2023

Last Update Submit

December 22, 2023

Conditions

Keywords

Pulmonary EmbolismVenous ThromboembolismDirect Oral Anticoagulants

Outcome Measures

Primary Outcomes (3)

  • Symptomatic recurrence of VTE.

    Recurrent VTE.

    through study completion, an average of 1 year

  • Fatal or non-fatal PTE.

    Recurrent VTE.

    through study completion, an average of 1 year

  • Major bleeding (MB) and clinically relevant non-major bleeding (CRNMB) events as defined by the International Society on Thrombosis and Haemostasis (ISTH).

    Bleeding Events

    through study completion, an average of 1 year

Study Arms (1)

Patients with pulmonary embolism and using direct oral anticoagulants

Patients with pulmonary embolism and using direct oral anticoagulants

Drug: Direct oral anticoagulant

Interventions

Patients take DOACs according to their condition, with the dosage determined by the clinical physician.

Patients with pulmonary embolism and using direct oral anticoagulants

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adult patients with objectively diagnosed acute symptomatic pulmonary embolism (with or without concurrent deep vein thrombosis) by imaging, who have completed acute anticoagulation and entered the anticoagulation maintenance phase。

You may qualify if:

  • (1) Adult patients with objectively diagnosed acute symptomatic pulmonary embolism (with or without concurrent deep vein thrombosis) by imaging, who have completed acute anticoagulation and entered the anticoagulation maintenance phase; (2) Life expectancy greater than 3 months; (3) Meeting the indications for Xa factor inhibitor use; (4) Willingness to participate in this study, sign the informed consent form, and adhere to regular follow-ups.

You may not qualify if:

  • (1) Moderate or severe hepatic impairment (Child-Pugh Class B or C); (2) Severe renal impairment (CrCl \< 15ml/min); (3) Pregnant or breastfeeding women; (4) Spontaneous bleeding tendencies, such as coagulation disorders or low platelet count (PLT \< 20×10\^9/L); (5) Contraindications to other Xa factor inhibitors' usage; (6) Patients diagnosed with hereditary thrombophilia and antiphospholipid syndrome.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking Union Medical College Hospital

Beijing, Beijing Municipality, 100730, China

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Peripheral Blood and Urine.

MeSH Terms

Conditions

Pulmonary EmbolismVenous Thromboembolism

Interventions

N(4)-oleylcytosine arabinoside

Condition Hierarchy (Ancestors)

Lung DiseasesRespiratory Tract DiseasesEmbolismEmbolism and ThrombosisVascular DiseasesCardiovascular DiseasesThromboembolism

Central Study Contacts

juhong Shi, M.D

CONTACT

min Peng, M.D

CONTACT

Study Design

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

Study Record Dates

First Submitted

December 22, 2023

First Posted

January 8, 2024

Study Start

April 1, 2021

Primary Completion (Estimated)

September 30, 2026

Study Completion (Estimated)

September 30, 2026

Last Updated

January 8, 2024

Record last verified: 2023-12

Locations