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Ulcerative ColitisPhase 4NCT06626165

Association Between Effectiveness of Mirikizumab and UC Patients With High Neutrophilic Infiltration in Epithelium of the Colonic Mucosa

A Phase 4 study testing Mirikizumab and Vedolizumab in people with Ulcerative Colitis, run by Showa Inan General Hospital at 1 site in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The goal of this study is to confirm that Mirikizumab therapy may provide clinical, endoscopic, and histopathologic improvements in patients with moderate to severe UC refractory to maintenance therapy when high neutrophilic infiltration in epithelium of the colonic mucosa (Geboes score Grade ≥3.2) on endoscopic… Read more about this study

Who is it for?
Ages 19 years and older
Conditions the study is for
Ulcerative Colitis
What is being tested?
Mirikizumab and Vedolizumab
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteJapan
Study dates
20 Jul 2024to 30 Sep 2025
Phase
Phase 4
Are there results?
None posted in the registry

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 19 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • They were endoscopically active ulcerative colitis patients.

Who cannot join

  • the presence of a long-term illness, colorectal cancer, or infectious colitis

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Showa Inan General Hospital

    Komagane, Nagano, 399-4117

Other trials in Japan

About this study

Official title: Mirikizumab Therapy is Effective for Patients With Moderate to Severe Ulcerative Colitis Patients Whose Geboes Score Grade is ≥3.2) on Endoscopic Biopsy

The goal of this study is to confirm that Mirikizumab therapy may provide clinical, endoscopic, and histopathologic improvements in patients with moderate to severe UC refractory to maintenance therapy when high neutrophilic infiltration in epithelium of the colonic mucosa (Geboes score Grade ≥3.2) on endoscopic biopsy is found.

Being tested
Mirikizumab, Vedolizumab
Keywords
ulcerative colitis
Medical subject headings
Colitis, Ulcerative

What participants receive

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

  • MirikizumabDrug

    Mirikizmgab will be administered based on the result of Geboes score Grade ≥ 3.2.

  • VedolizumabDrug

    Vedolizmab will be administered based on the result of Geboes score Grade 3.1.

Study groups in NCT06626165
Study groupRoleWhat they receive
MirikizumabActive comparatorWhen the patients were endoscopically active and pathologically high neutrophil infiltration in epithelium of the colonic mucosa (Geboes score Grade ≥3.2), using Geboes biopsy histology scores they will be administered by mirikizumab.
Receives: Drug: Mirikizumab
VedolizumabActive comparatorWhen the patients are endoscopically active and pathologically low neutrophil infiltration in epithelium of the colonic mucosa (Geboes score Grade 3.1), using Geboes biopsy histology scores, they will be administered by vedolizumab.
Receives: Drug: Vedolizumab

What is being measured

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

  1. Changes in clinical activities before and after mirikizumab or vedolizumab treatment.

    Clinical activity is graded using the clinical activity index (0, best - 15, worst).

    Measured: 2 weeks

Secondary outcomes (2)
  1. Changes in endoscopic activities before and after mirikizumab or vedolizumab administration.

    Mayo endoscopic subscore (0, best - 3, worst) and ulcerative colitis endoscopic index of severity (UCEIS) score are assessed at the site with the maximum endoscopic activity, (0, best - 8, worst).

    Measured: 2 months

  2. Changes in pathological activity

    Pathological activity was graded using Geboes biopsy histology scores, which were classified on a scale from 0 to 5, with higher scores indicating more severe histologic inflammation.

    Measured: 2 months

Timeline

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

  1. First posted3 Oct 2024
  2. Study start20 Jul 2024
  3. Primary completion30 Sep 2025
  4. Study completion30 Sep 2025

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06626165
Sponsor's protocol ID
Geboes 3.2
Status last verified
Sep 2024
First submitted
20 Jul 2024
Last updated
20 Oct 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Mirikizumab and Vedolizumab in people with Ulcerative Colitis, run by Showa Inan General Hospital at 1 site in Japan.

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 1 inclusion and 1 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: finished, as of the sponsor's last update on 20 Oct 2025. 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 Japan. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in clinical activities before and after mirikizumab or vedolizumab treatment. (time frame: 2 weeks). 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 20 Oct 2025.

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