Prospective Study of White Blood Cells

January 16, 2026 updated by: Quell Therapeutics Limited

Investigation of White Blood Cells to Support the Development of Engineered Regulatory T Cell (Treg) Therapies

The purpose of this study is to investigate white blood cells from volunteering donors to support the development of engineered regulatory T cell therapies.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Estimated)

10

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • United Kingdom
      • London, United Kingdom
        • Recruiting
        • Quell Investigator Site 01

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Volunteers willing to provide white blood cells for research.

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Specimen collection to support development of engineering Treg
Other: White blood cell and blood collection
Mononucleocytes will be collected via apheresis

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
WBC characterisation to support the development of engineered regulatory T cells.
Time Frame: 5 years
number, type and function of white blood cells in healthy controls and in patients
5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Quell Therapeutics Limited

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 24, 2021

Primary Completion (Estimated)

December 31, 2029

Study Completion (Estimated)

January 1, 2030

Study Registration Dates

First Submitted

April 1, 2021

First Submitted That Met QC Criteria

April 6, 2021

First Posted (Actual)

April 8, 2021

Study Record Updates

Last Update Posted (Actual)

January 21, 2026

Last Update Submitted That Met QC Criteria

January 16, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • QEL-RP-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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