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Blood cell collection could pave way for new immune therapies

NCT ID NCT04838171

Knowledge-focused Sponsor: Quell Therapeutics Limited Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 collects white blood cells from up to 10 healthy volunteers and patients with autoimmune diseases, inflammation, or liver transplant. The goal is to analyze these cells to help develop engineered regulatory T cell (Treg) therapies. No treatment is given; it is a research-only study to understand white blood cell characteristics.

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 research could help create new cell therapies that control harmful immune responses in autoimmune diseases and organ transplant patients.
What could go wrong
This is a very early, small study (10 participants) focused on collecting cells for lab research, not testing a treatment. It may not lead to a working 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

About 10 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2021

Expected to finish

Jan 2030

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Who is studied

Volunteers willing to provide white blood cells for research.

Ages

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

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.

No additional inclusion/ exclusion criteria will be applied by Quell other than those specified by the consenting institutions.

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Conditions

The condition(s) this trial relates to.

autoimmune disease Inflammation inflammatory disease Rejection, Psychology transplant rejection

As listed by the trial registrant

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

Autoimmune diseases Inflammation Rejection; transplant, liver

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    1 site. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Quell Investigator Site 01

    RECRUITING

    London, United Kingdom

More trials for these conditions

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