NCT03962400

Brief Summary

This is a clinical study designed to test the hypothesis that a computer model for dosing warfarin is superior to current clinical practice. Subjects will be randomized to two groups based on how warfarin dose is determined and followed for 6 months. The primary outcome is the percent of the time that the INR is maintained in the effective range.

Trial Health

15
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Jan 2022

Longer than P75 for phase_4

Status
withdrawn

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

First Submitted

Initial submission to the registry

May 21, 2019

Completed
3 days until next milestone

First Posted

Study publicly available on registry

May 24, 2019

Completed
2.6 years until next milestone

Study Start

First participant enrolled

January 1, 2022

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

March 4, 2022

Status Verified

February 1, 2022

Enrollment Period

3 years

First QC Date

May 21, 2019

Last Update Submit

February 17, 2022

Conditions

Keywords

warfarin

Outcome Measures

Primary Outcomes (1)

  • Percent in Range

    Percent of INR measurements within the Target Range

    6 months

Secondary Outcomes (1)

  • Adverse Events

    6 Months

Study Arms (2)

Control

ACTIVE COMPARATOR

Subjects will have warfarin dose determined in the usual fashion by a health care provider.

Procedure: Heath Care Provider

Treatment

EXPERIMENTAL

Subjects will have warfarin dose determined using a reinforcement learning computer model.

Procedure: Reinforcement Learning

Interventions

New computer based procedure for determining dose using a decision support tool

Treatment

Warfarin dose will be determined by a qualified health care provider

Control

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Receiving anticoagulation treatment with warfarin.

You may not qualify if:

  • Pregnancy.
  • History of hemorrhagic cerebrovascular incident.
  • Acquired or inherited hemophilia.
  • Thrombocytopenia (\<100,000 platelets per mm3) on 2 occasions separated by 2 days.
  • Anemia with hemoglobin concentration \< 10 g/dL.
  • Active cancer excluding non-melanoma skin cancers.
  • Active liver disease as documented by prolonged baseline INR ≥ 1.6.
  • Uncontrolled hypertension with 2 readings \>180/110.
  • Recent (\< 2 weeks) neurosurgical procedure.
  • Enrollment in hospice program for any diagnosis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Hemostatic Disorders

Interventions

Reinforcement Machine Learning

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular DiseasesHemorrhagic DisordersHematologic DiseasesHemic and Lymphatic Diseases

Intervention Hierarchy (Ancestors)

Machine LearningArtificial IntelligenceAlgorithmsMathematical Concepts
0

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Subjects will not be informed of group designation
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized Controlled Trial of 2 groups. Subjects in the Control group will receive warfarin with dose adjustment guided by standard protocol. Subjects in the Treatment group will receive warfarin with dose adjustment guided by personalized protocol.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

May 21, 2019

First Posted

May 24, 2019

Study Start

January 1, 2022

Primary Completion

December 31, 2024

Study Completion

December 31, 2025

Last Updated

March 4, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share