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Subtherapeutic INR Levels in Patients With AVK: Incidence, Associated Factors, Prognosis and Control Strategies

NCT02610153 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 1013

Last updated 2019-04-25

No results posted yet for this study

Summary

This prospective observational study is to assess the predictive factors of poor control of international normalized ratio (INR) to determine the treatment strategies received by patients with a poor control of INR in real-life clinical practice and to explore the effectiveness and safety of these strategies in patients with non-valvular atrial fibrillation who start vitamin K antagonist (VKA) treatment

Conditions

Interventions

DRUG

Vitamin K Antagonist

The vitamin K antagonists exert their anticoagulant effect through inhibition of the enzyme complex of vitamin K epoxide reductase subunit 1 with subsequent reduction of the gamma-carboxylation of certain glutamic acid molecules endpoints located on factors coagulation II (prothrombin), VII, IX and X and protein C or its cofactor protein S. This gamma-carboxylation has a significant bearing on the interaction of coagulation factors referenced with calcium ions. Without this reaction, blood clotting cannot be initiated. The dose must be adjusted to each patient at baseline and after regular basis, since the sensitivity to anticoagulants varies between individuals and can also vary throughout the treatment. For this, the Prothrombin Time (PT) is used and standardized ratio called International Normalised Ratio (INR).

Sponsors & Collaborators

  • Janssen Research & Development, LLC

    collaborator INDUSTRY

  • Bayer

    lead INDUSTRY

Principal Investigators

  • Bayer Study Director · Bayer

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-10-01
Primary Completion
2018-06-30
Completion
2019-03-15

Countries

  • Spain

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Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02610153 on ClinicalTrials.gov