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Gastro-Intestinal DisorderNAZANCT06956703

NAZA - Nottingham/Astra ZenecA Prospective IBD Cohort Study

An observational study of Gastro-Intestinal Disorder and Crohn Disease, run by University of Nottingham at 1 site in United Kingdom.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The goal of this observational study is to learn about the comparisons of inflammatory markers between IBD and non-IBD (control) participants. The main question it aims to answer is: Are there differences in inflammatory markers between IBD and non-IBD (control) participants. Read more about this study

Who is it for?
Ages 16 years and olderHealthy volunteers can take part
How many people
240 participants
Where
1 siteUnited Kingdom
Study dates
12 Dec 2022to 31 Dec 2027
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 years and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: A cohort study in patients with moderate to severely active Crohn's Disease (CD) and Ulcerative Colitis (UC) who are switching to new targeted biologic therapy (with a different mode of action) - onto either anti-TNFα therapy or vedolizumab for UC or onto anti-TNFα therapy or ustekinumab or upadacitinib for CD and undergoing routine endoscopic assessments as part of normal clinical practice. We will also recruit participants without these conditions (controls) who are due for a lower GI colonoscopy as part of the UK national bowel cancer screening programme or on any hospital/ medical/ clinical screening list or any other appropriate list with no pathology found on examination.

Who may be able to join

  • 1. Provision of signed and dated, written informed consent before any study specific procedures
  • AND
  • 2a. Patients of at least 16 years of age with active Crohn's disease defined as: CRP > = 5 mg/L OR FCP > = 250 μg/g OR Visible ulcerations on ileocolonoscopy with a total SES-CD > = 7, or > = 4 if disease is confined to the terminal ileum OR visable active disease on cross-sectional imaging. Are switching to a new mechanism of action (MOA) onto anti-TNF therapy or ustekinumab or upadacitinib
  • OR
  • 2b. Patients of at least 16 years (no upper age limit) with active UC defined as: CRP > = 5 mg/L OR FCP > = 250 μg/g OR Mayo endoscopy subscore > = 2. Are switching to a new mechanism of action (MOA) onto either anti-TNFα therapy or vedolizumab
  • OR
  • 2c. Non-IBD participants who are attending for a lower GI colonoscopy at any participating site. On any hospital/ medical/ clinical screening list or any other appropriate list with no pathology found on examination.

Who cannot join

  • Inability to give informed consent
  • Any positive result from previous screening for serum hepatitis B surface antigen, hepatitis C or human immunodeficiency virus (HIV)
  • An ongoing infection requiring treatment
  • Clinical evidence of active COVID infection and/or evidence of active COVID determined by local standard care procedures
  • Participation in a clinical study with pharmacological intervention within 3 months prior to Baseline visit.
  • Current diagnosis of cancer
Show all 12Show fewer
  • Having received a solid organ or stem cell transplant
  • Having received a transfusion of blood, plasma, or platelets within 120 days prior to enrolment
  • Confirmed pregnancy at time of enrolment
  • For non-IBD participants: A prior history of IBD (CD, UC, microscopic colitis, indeterminate colitis or IBD unspecified)
  • Clinical judgement by the investigator that the patient should not participate in the study
  • Under 16yrs of age

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Nadia Frowd contact

nadia.frowd1@nhs.net

United Kingdom1 site, 1 recruiting
  • University of Nottingham

    Nottingham, Nottinghamshire, NG7 2UH

    Gordon Moran Professor, gordon.moran@nottingham.ac.uk

    Recruiting

Other trials in United Kingdom

About this study

The goal of this observational study is to learn about the comparisons of inflammatory markers between IBD and non-IBD (control) participants.

The main question it aims to answer is:

Are there differences in inflammatory markers between IBD and non-IBD (control) participants.

Read the detailed description

A cohort study in patients with moderate to severely active Crohns Disease (CD) and Ulcerative Colitis (UC) who are switching to new targeted biologic therapy (with a different mode of action) - onto either anti-TNFα therapy or vedolizumab for UC or onto anti-TNFα therapy or ustekinumab or upadacitinib for CD and undergoing routine endoscopic assessments as part of normal clinical practice.

The investigator will also recruit participants without these conditions (controls) who are due for a lower GI colonoscopy as part of the UK national bowel cancer screening programme or on any hospital/ medical/ clinical screening list or any other appropriate list with no pathology found on examination.

CD \& UC patients will provide blood and stool samples at 3 timepoints (baseline, 3mths, 12mths) as well as extra tissue biopsies taken at standard care endoscopies within 12mths. Controls will provide a blood sample and stool sample as well as extra tissue biopsies taken at standard care colonoscopies.

Samples will be analysed to characterise any observable traits (phenotype) and molecular variability in patients which may be associated with clinical response to the treatment.

The investigator hopes the information gained from this study may help improve the understanding of Inflammatory Bowel Diseases (IBD) and help to develop better ways of treating the condition and predicting the course of the disease and how patients may respond to different treatments.

Medical subject headings
Digestive System Diseases, Crohn Disease, Colitis, Ulcerative, Inflammatory Bowel Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT06956703
Study groupRoleWhat they receive
Crohn's Disease - anti-TNFα therapyConsultant will prescribe biologic dose, frequency and duration as normal standard of care
Crohn's Disease - ustekinumabConsultant will prescribe biologic dose, frequency and duration as normal standard of care
Crohn's Disease - upadacitinibConsultant will prescribe biologic dose, frequency and duration as normal standard of care
Ulcerative Colitis - anti-TNFα therapyConsultant will prescribe biologic dose, frequency and duration as normal standard of care
Ulcerative Colitis - vedolizumabConsultant will prescribe biologic dose, frequency and duration as normal standard of care
Control non-IBDNo biologic will be prescribed

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The comparison of the IL-23/Th17 inflammatory axis between IBD and healthy control samples

    Measured: Baseline, Month 3 and Month 12

Secondary outcomes (2)
  1. Characterisation of IL-23/Th17 inflammatory axis within IBD biosamples stratified by prior biologic exposure

    Measured: Baseline, Month 3 and Month 12

  2. Comparison of mRNA sequencing readouts, characterisation of tissue and immune cell populations, characterisation of protein expression and characterisation of microbial species in the stool and tissue

    The above will be stratified by disease type and status, demographic features of the participant, biologic exposure, clinical and endoscopic response to treatment

    Measured: Baseline, Month 3 and Month 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 May 2025
  2. Study start12 Dec 2022
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
240 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06956703
Sponsor's protocol ID
22GA031
Acronym
NAZA
Status last verified
Jun 2026
First submitted
24 Apr 2025
Last updated
8 Jul 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Gastro-Intestinal Disorder and Crohn Disease, run by University of Nottingham at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 8 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Gordon Moran Professor (0115 9249924 ext. 80608, Gordon.Moran@nottingham.ac.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The comparison of the IL-23/Th17 inflammatory axis between IBD and healthy control samples (time frame: Baseline, Month 3 and Month 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jul 2026.

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