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Pocket-Sized clot test could change surgery prep

NCT ID NCT02255214

Diagnosis Sponsor: NHS Lothian Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether a small, portable device called Hemochron Signature Elite can accurately measure blood clotting (INR) compared to standard lab tests. It included 24 adults who had stopped taking warfarin before surgery. The goal was to see if the device gives reliable results quickly, which could help doctors decide if it's safe to use a type of anesthesia called central neuraxial blockade.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

24 people

The number who actually took part.

Start date

Oct 2013

Finished

May 2015

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population will include all adult patients presenting for elective surgery who have stopped their warfarin therapy within the last 7 days. They will be approached in the Day Surgery Unit and Day of Surgery Assessment unit within a single centre.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult patients presenting for elective surgery who have stopped their warfarin therapy within the last 7 days. Exclusion Criteria: * Adults with incapacity

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Blood coagulation tests

Contacts and locations

Locations

  • Royal Infirmary Edinburgh

    Edinburgh, Lothian, EH16 4SA, United Kingdom