NCT02140567

Brief Summary

The purpose of this study is to perform a prospective evaluation of the vasovagal syncope prediction algorithm, called Tilt Test Analyzer, during head up tilt testing tests in one center in the United Kingdom.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
140

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2014

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

April 30, 2014

Completed
16 days until next milestone

First Posted

Study publicly available on registry

May 16, 2014

Completed
6 months until next milestone

Study Start

First participant enrolled

November 1, 2014

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2016

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2016

Completed
1.8 years until next milestone

Results Posted

Study results publicly available

August 27, 2018

Completed
Last Updated

March 15, 2019

Status Verified

February 1, 2019

Enrollment Period

1.9 years

First QC Date

April 30, 2014

Results QC Date

December 1, 2017

Last Update Submit

February 22, 2019

Conditions

Outcome Measures

Primary Outcomes (2)

  • Sensitivity of the Syncope Prediction Algorithm

    Number of tilt-positive participants predicted in the right way by the syncope prediction algorithm

    Tilt Test with average duration of 1 hour

  • Specificity of the Syncope Prediction Algorithm

    Number of tilt-negative participants identified as negative by the syncope prediction algorithm

    Tilt Test with average duration of 1 hour

Study Arms (1)

Syncope Prediction

All enrolled patients that performed the tilt table test

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Vasovagal syncope patients

You may qualify if:

  • Patients referred to the center with vasovagal syncope for tilt testing.
  • The patient is willing and able to cooperate with the study procedures.
  • The subject or legal guardian is able to provide written informed consent

You may not qualify if:

  • Patients under 18 years or over 90 years old.
  • Women who are currently pregnant or have a positive pregnancy test.
  • Patients who had a prior tilt test.
  • Patients enrolled in another device or drug study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hammersmith Hospital, Imperial College Healthcare NHS Trust

London, United Kingdom

Location

Related Publications (1)

  • Virag N, Erickson M, Taraborrelli P, Vetter R, Lim PB, Sutton R. Predicting vasovagal syncope from heart rate and blood pressure: A prospective study in 140 subjects. Heart Rhythm. 2018 Sep;15(9):1404-1410. doi: 10.1016/j.hrthm.2018.04.032. Epub 2018 Apr 30.

MeSH Terms

Conditions

Syncope, Vasovagal

Condition Hierarchy (Ancestors)

Orthostatic IntolerancePrimary DysautonomiasAutonomic Nervous System DiseasesNervous System DiseasesSyncopeUnconsciousnessConsciousness DisordersNeurobehavioral ManifestationsNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Dr. Phang Boon Lim
Organization
Imperial College Healthcare NHS Trust in London, United Kingdom

Study Officials

  • P Boon Lim, MD

    Hammersmith Hospital, Imperial College Healthcare NHS Trust

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

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

Study Record Dates

First Submitted

April 30, 2014

First Posted

May 16, 2014

Study Start

November 1, 2014

Primary Completion

October 1, 2016

Study Completion

November 1, 2016

Last Updated

March 15, 2019

Results First Posted

August 27, 2018

Record last verified: 2019-02

Locations