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Why are black African/Caribbean people at higher diabetes risk? stomach emptying may hold clues.

NCT ID NCT03864562

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compared how quickly the stomach empties a sugary drink in 30 white Europeans and 30 people of Black African or Caribbean descent. The goal was to understand why Black African/Caribbean people have a higher risk of type 2 diabetes. Researchers measured blood sugar, insulin, and gut hormones after the drink. The study is complete and aimed at gathering knowledge, not testing a new treatment.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could reveal why people of Black African/Caribbean descent are more prone to type 2 diabetes, pointing toward future prevention strategies.
What could go wrong
This is a small, completed observational study with only 56 participants. It does not test a treatment, so it cannot directly lead to a cure or therapy.

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

56 people

The number who actually took part.

Started

Mar 2019

Finished

Mar 2023

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

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 cohort will be recruited from the general population of England who live within commuting distance from the study site, and will incorporate those from the counties of Nottinghamshire, Derbyshire and Leicestershire

Ages

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * White European or black African / Caribbean heritage * BMI \>18 kg/m2 * Ability to give written informed consent * English speaking Exclusion Criteria: * Any significant medical condition * Uncontrolled hypertension * Alcohol consumption \>14 units / week * Random blood Glucose concentration above 7.8mmol/l * Hemoglobin A1c (HbA1c) \>47mmol/mol (\>6.4%) * Use of regular medication, (oral contraceptive pill or antihypertensive medication are acceptable if use has been for \>6 months) * History of Irritable Bowel Syndrome, food intolerances or any gastrointestinal disorders * Previous bariatric surgery, or gastrointestinal surgery which may affect normal function (e.g. bowel resection)

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • David Greenfield Human Physiology Unit, University of Nottingham

    Nottingham, Notts, NG72UH, United Kingdom

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Other studies related to the condition(s) this trial covers.