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Crohn DiseaseGusTaConNCT07746765

A Study of Continued Use of Guselkumab in Participants With Crohn's Disease and Ulcerative Colitis in Real World Setting

An observational study of Crohn Disease and Colitis, Ulcerative, run by Janssen Sciences Ireland UC.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The purpose of this study is to find out how long a participant keeps taking guselkumab or continues with their treatment plan without stopping (treatment persistence) in participants with moderate to severe Crohn's disease (CD) or ulcerative colitis (UC) in real-world setting. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Crohn Disease, Colitis, Ulcerative
How many people
35 participants
Where
No sites listed yet
Study dates
12 Nov 2026to 12 Nov 2029
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: The study population will include participants with confirmed diagnosis of moderate-to-severe Crohn's disease (CD) or ulcerative colitis (UC) disease receiving guselkumab in routine clinical practice.

Who may be able to join

  • Participant must be eligible for biologic treatment and initiate guselkumab according to the approved indications as described in the current version of the summary of product characteristics (SmPC) of the drug
  • Participant must have a confirmed diagnosis of moderate-to-severe CD or UC recorded in their medical records
  • Participant must sign an informed consent form (ICF) allowing data collection and source data verification in accordance with local requirements

Who cannot join

  • Contraindicated to guselkumab per the label
  • Is currently enrolled in an interventional clinical study
  • Has been previously exposed to interleukin (IL)-23 inhibitors, including Tremfya (guselkumab), Skyrizi (risankizumab) and Omvoh (mirikizumab). As an exception, participants with history of Ustekinumab exposure may be included
  • History of more than 4 lines of advanced inflammatory bowel disease (IBD) therapy (biologics and/or small molecules)
  • Is unable to provide informed consent

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

About this study

Official title: Real-world Observational Study of Guselkumab Persistence in Patients With Crohn's Disease and Ulcerative Colitis

The purpose of this study is to find out how long a participant keeps taking guselkumab or continues with their treatment plan without stopping (treatment persistence) in participants with moderate to severe Crohn's disease (CD) or ulcerative colitis (UC) in real-world setting. CD and UC are inflammatory bowel diseases, a group of inflammatory conditions of the colon and small intestine.

Medical subject headings
Crohn Disease, Colitis, Ulcerative

What participants receive

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

Study groups in NCT07746765
Study groupRoleWhat they receive
Moderate-to-Severe Ulcerative Colitis (UC) or Crohn's Disease (CD)Participants with confirmed diagnosis of moderate to severe crohn's disease (CD) or ulcerative colitis (UC) treated with guselkumab in accordance with routine clinical practice as per the approved prescribing label will be enrolled. No drug will be provided as a part of this study. Only data available from clinical practice and medical records will be collected within this study.

What is being measured

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

  1. Time to Guselkumab Discontinuation

    Persistence with guselkumab treatment will be assessed through time to guselkumab discontinuation which is defined as the time at which the next infusion should have taken place for a participant after their last scheduled infusion. It will be used to measure the guselkumab persistence in participants.

    Measured: Up to Week 96

Secondary outcomes (50)
  1. Number of Participants with Early Responses to Guselkumab Measured Using Bowel Urgency

    Number of participants with early responses to guselkumab measured using bowel urgency will be assessed via participant diaries.

    Measured: At Weeks 0 (baseline), 1, 2, 4, 8, 12

  2. Number of Participants with Early Responses to Guselkumab Measured Using Patient Reported Outcome (PRO-2) Components

    Number of participants with early responses to guselkumab will be assessed using PRO-2 components and reported via participant diaries. Measurements captured include stool frequency, rectal bleeding, and abdominal pain.

    Measured: At Weeks 0 (baseline), 1, 2, 4, 8, 12

  3. Number of Participants Achieving Clinical Response for CD as Measured by Harvey-Bradshaw Index (HBI) Score

    HBI score is used to assess disease severity and treatment effectiveness. The HBI consists of a 5-part questionnaire, assessing general wellbeing, abdominal pain, number of liquid stools per day, abdominal mass and complications. Clinical response for CD is defined as the reduction in HBI by greater than or equal to (>=)3 points from baseline or achieving HBI less than or equal to (<=) 4.

    Measured: At Weeks 0 (baseline), 12, 48 and 96

  4. Number of Participants Achieving Clinical Response for Ulcerative Colitis (UC) as Measured by Partial Mayo Score (PMS)

    PMS is used to assess disease severity and treatment effectiveness. The PMS comprises 3 categories: rectal bleeding, SF, and physician assessment. These are rated from 0-3 and are totaled to give a total score that ranges from 0-12. Higher score indicates severe disease. Clinical response for UC is defined as the PMS score less than (<) 4 or >= 30 percent (%) reduction from baseline.

    Measured: At Weeks 0 (baseline), 12, 48 and 96

  5. Number of Participants Achieving Clinical Remission for CD as Measured by HBI Score

    HBI score is used to assess disease severity and treatment effectiveness. The HBI consists of a 5-part questionnaire, assessing general wellbeing, abdominal pain, number of liquid stools per day, abdominal mass and complications. Clinical remission for CD is defined as a HBI score <= 4.

    Measured: At Weeks 0 (baseline), 12, 48 and 96

  6. Number of Participants Achieving Clinical Remission for UC as Measured by PMS

    PMS is used to assess disease severity and treatment effectiveness. The PMS comprises 3 categories: rectal bleeding, SF, and physician assessment. These are rated from 0-3 and are totaled to give a total score that ranges from 0-12. Higher score indicates severe disease. Clinical remission for UC is defined as the PMS score < 2 and a rectal bleeding subscore of 0.

    Measured: At Weeks 0 (baseline), 12, 48 and 96

  7. Number of Participants Achieving Corticosteroid-Free Clinical Remission for CD

    Corticosteroid-free clinical remission for CD is defined as no use of corticosteroids for at least 30 days and a HBI score <= 4.

    Measured: At Weeks 0 (baseline), 12, 48 and 96

  8. Number of Participants Achieving Corticosteroid-Free Clinical Remission for UC

    Corticosteroid-free clinical remission for UC is defined as no use of corticosteroids for at least 30 day, PMS score < 2 and a rectal bleeding subscore of 0.

    Measured: At Weeks 48 and 96

  9. Number of Participants Achieving Corticosteroid-Free PRO-2 Remission for CD

    Corticosteroid-free PRO-2 remission for CD is defined as an AP score <=1 and a mean SF score <=3, and no worsening of AP or SF compared with baseline with no use of corticosteroids for at least 30 days.

    Measured: At Weeks 12, 48 and 96

  10. Number of Participants Achieving Corticosteroid-Free PRO-2 Remission for UC

    Corticosteroid free PRO-2 remission for UC is defined as an SF subscore of 0 or 1, where the SF subscore has not increased from baseline, and a rectal bleeding subscore of 0 with no use of corticosteroids for at least 30 days.

    Measured: At Weeks 12, 48 and 96

  11. Characteristics of Participants Receiving Guselkumab Treatment: Age

    Characteristics of participants (age) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  12. Characteristics of Participants Receiving Guselkumab Treatment: Sex

    Characteristics of participants (sex) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  13. Characteristics of Participants Receiving Guselkumab Treatment: Previous Inflammatory Bowel Disease (IBD) Medication Usage

    Characteristics of participants (previous IBD medication use) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  14. Characteristics of Participants Receiving Guselkumab Treatment: Smoking Status and History

    Characteristics of participants (smoking status and history) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  15. Characteristics of Participants Receiving Guselkumab Treatment: Height

    Characteristics of participants (height) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  16. Characteristics of Participants Receiving Guselkumab Treatment: Weight

    Characteristics of participants (weight) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  17. Characteristics of Participants Receiving Guselkumab Treatment: Disease Severity At Index

    Characteristics of participants (disease severity at index) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  18. Characteristics of Participants Receiving Guselkumab Treatment: Age at Diagnosis

    Characteristics of participants (age at diagnosis) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  19. Characteristics of Participants Receiving Guselkumab Treatment: Disease Duration

    Characteristics of participants (disease duration) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  20. Characteristics of Participants Receiving Guselkumab Treatment: Comorbid Diagnoses

    Characteristics of participants (comorbid diagnoses) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  21. Characteristics of Participants Receiving Guselkumab Treatment: History of UC/CD

    Characteristics of participants (history of UC/CD) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  22. Characteristics of Participants Receiving Guselkumab Treatment: Previous IBD-Related Surgeries

    Characteristics of participants (Previous IBD-related surgeries) receiving guselkumab treatment will be reported.

    Measured: At Baseline

  23. UC Phenotype According to the Montreal Classification: Extent of Disease

    Extent of disease (E1, ulcerative proctitis [limited to rectum]; E2, left-sided colitis [up to splenic flexure]; E3, extensive colitis [beyond splenic flexure]) in participants with UC will be assessed according to Montreal classification.

    Measured: At Baseline

  24. UC Phenotype According to Montreal Classification: Severity

    Severity (S0, clinical remission; S1, mild; S2, moderate; S3, severe) in participants with UC will be assessed according to Montreal classification.

    Measured: At Baseline

  25. CD Phenotype According to Montreal Classification: Age at Diagnosis

    Age at diagnosis (A1, <17 years; A2, 17-40 years, A3, >40 years) in participants with CD will be assessed according to Montreal classification.

    Measured: At Baseline

  26. CD Phenotype According to Montreal Classification: Location

    Location (L1, ileal; L2, colonic; L3, ileocolonic; L4, isolated upper disease) in participants with CD will be assessed according to Montreal classification.

    Measured: At Baseline

  27. CD Phenotype According to Montreal Classification: Behavior

    Behavior (B1, non-structuring, non-penetrating; B2, structuring; B3, penetrating; p, perianal disease modifier) in participants with CD will be assessed according to Montreal classification.

    Measured: At Baseline

  28. Number of Participants with Adverse Events (AE)

    An adverse event is any untoward medical occurrence in a participant administered a medicinal product based on appropriate medical judgment. An AE does not necessarily have a causal relationship with the treatment.

    Measured: Up to Week 96

  29. Number of Participants with C-Reactive Protein (CRP) Normalization

    CRP normalization is defined as less than or equal to (<=) 5 microgram per liter (mg/L) since baseline (among participants with elevated CRP at baseline). C-reactive protein is a marker of inflammation that will be measured by physicians following routine clinical practice.

    Measured: At Weeks 0 (baseline), 4, 12, 48 and 96

  30. Change in CRP Levels

    Change in CRP levels since guselkumab initiation will be reported. C-reactive protein is a marker of inflammation that will be measured by physicians following routine clinical practice.

    Measured: At Weeks 0 (baseline), 4, 12, 48 and 96

  31. Number of Participants with Fecal Calprotectin (Fcal) Normalization

    Fcal normalization is defined as percentage of Fcal <= 250 microgram per gram (mcg/g) since baseline (among participants with calprotectin elevation at baseline). Fcal is a marker of inflammation that will be measured by physicians following routine clinical practice where higher values indicate greater intestinal inflammation.

    Measured: At Weeks 0 (baseline), 4, 12, 48 and 96

  32. Change in Fcal Levels

    Change in Fcal levels since guselkumab initiation will be reported. Fcal is a marker of inflammation that will be measured by physicians following routine clinical practice where higher values indicate greater intestinal inflammation.

    Measured: At Weeks 0 (baseline), 4, 12, 48 and 96

  33. Number of Participants Receiving Concomitant IBD Medications During Guselkumab Treatment

    Number of participants receiving concomitant IBD medications during guselkumab treatment will be reported.

    Measured: Up to Week 96

  34. Health-Related Quality of life (HRQoL) as Measured by Short Inflammatory Bowel Disease Questionnaire (SIBDQ)

    The SIBDQ is a HRQoL tool measuring physical, social, and emotional status in IBD participants. The SIBDQ is a 10-item survey measuring HRQoL over the last 2 weeks (frequency of bowel movement, abdominal cramps, fatigue, lack of energy, worry of surgery, fear of no toilet, ability to relax, irritable, impact on leisure, impact on intimacy). The total score ranges from 10 to 70, where high score indicates better QoL.

    Measured: At Weeks 0 (baseline), 12, 48, and 96

  35. HR-QoL as Measured by Bowel Urgency

    HRQoL as measured by bowel urgency will be reported. Bowel urgency from participants will be asked as yes or no.

    Measured: At Weeks 0 (baseline), 12, 24, 48, 72 and 96

  36. HR-QoL of Participants with CD Receiving Guselkumab Treatment as Measured by PRO-2 Components

    The CD PRO-2 consists of 2 items: abdominal pain (AP) and stool frequency (SF). AP is a numeric variable with a score between 0-3 and is self-reported by the participant for the 3 days preceding assessment as 0 (no pain), 1 (mild), 2 (moderate) or 3 (severe pain). SF is also a numeric variable calculated the number of liquid stools a participant has experienced over the past 3 days.

    Measured: At Weeks 0 (baseline), 4, 12, 24, 48, 72 and 96

  37. HR-QoL of Participants with UC Receiving Guselkumab Treatment as Measured by PRO-2 Components

    The UC PRO-2 is composed of rectal bleeding and stool frequency. Rectal bleeding is a numeric variable with a score between 0-3 and is self-reported by the participants for the 3 days preceding assessment as 0 (None), 1 (Streaks of blood with stool in less than half of the cases), 2 (Obvious blood with stools in most cases) or 3 (Blood alone passes). SF is also a numeric variable calculated the number of liquid stools a participant has experienced over the past 3 days.

    Measured: At Weeks 0 (baseline), 4, 8,12, 24, 48, 72, 96

  38. HRQoL as Measured by Functional Assessment of Chronic Illness Therapy- Fatigue (FACIT-F) Questionnaire

    The FACIT-F scale is a 13-item instrument designed to assess fatigue/tiredness and its impact on daily activities and functioning in chronic diseases. The instrument includes items such as tiredness, weakness, listlessness, lack of energy, and the impact of these feelings on daily functioning over the last 7 days. Scores are numeric and range from 0 to 52 with higher scores indicating less fatigue.

    Measured: At Weeks 0 (baseline), 12, 48, and 96

  39. HRQoL as Measured by Inflammatory Bowel Disease Fatigue (IBD-F) Scale Score

    The IBD-F is a self-assessment scale to be used to diagnose fatigue or to monitor fatigue level over time. The IBD-F scale consists of three sections: Section I - identifies the level and duration of fatigue (5 questions); Section II - assesses the impact of fatigue on daily activities (30 questions); and Section III - can identify causes and other factors related to fatigue (5 questions). Score ranges from 0 to 4 where 0 denotes no fatigue and 4 denotes extreme fatigue.

    Measured: At Weeks 0 (baseline), 12, 48, and 96

  40. Number of Participants Achieving Endoscopic Response in Participants with CD as Measured by Simple Endoscopy Score-CD (SES-CD) Total Score

    Endoscopic response defined as 50% improvement from baseline in SES-CD total score, or SES-CD total score <4. SES-CD score can range from 0 to 56. Higher scores indicating more severe disease.

    Measured: Up to Week 96

  41. Number of Participants Achieving Endoscopic Remission in Participants with CD as Measured by SES-CD Total Score

    Endoscopic remission is defined as SES-CD total score <=4 with at least 2 points reduction from baseline and no subscore >1 in any individual component. SES-CD score can range from 0 to 56. Higher scores indicating more severe disease.

    Measured: Up to Week 96

  42. Number of Participants Achieving Endoscopic Improvement in Participants with UC as Measured by Mayo Score

    Endoscopic improvement is defined as Mayo score <=1. The Mayo clinic score is a composite index with total score ranging from 0 to 12. Higher scores indicate worse disease activity.

    Measured: Up to Week 96

  43. Number of Participants Achieving Endoscopic Normalization in Participants with UC as Measured by Mayo Score

    Endoscopic normalization is defined as Mayo score =0. The Mayo clinic score is a composite index with a total score ranging from 0 to 12. Higher scores indicate worse disease activity.

    Measured: Up to Week 96

  44. Number of Participants Achieving Histological Improvement in Participants with UC

    Histological improvement defined as neutrophil infiltration in <5% of crypts, no crypt destruction, no erosions and ulcerations or granulation tissue according to the Geboes grading system, that is, Geboes score <=3.1.

    Measured: Up to Week 96

  45. Number of Participants Achieving Histological Remission in Participants with UC

    Histological remission is defined as the absence of neutrophils from the mucosa (both lamina propria and epithelium), no crypt destruction, no erosions, ulcerations or granulation tissue according the Geboes grading system, that is, Geboes score <=2B.0.

    Measured: Up to Week 96

  46. Number of Participants Achieving IUS (Transmural) Response in Participants with CD as Measured by Bowel Wall Thickness (BWT)

    Intestinal Ultrasound (IUS) response is defined as reduction of BWT of >=25% or normalization (<=3 millimeters [mm]) of the most affected segment at Weeks 24, 48, 72, 96 in participants with increased BWT (>3 mm) at baseline (Week 0).

    Measured: At Weeks 0 (baseline), 24, 48, 72, 96

  47. Number of Participants Achieving IUS (Transmural) Remission in Participants with CD as Measured by BWT

    IUS remission is defined as normalization of BWT (<=3 mm) and vascularity (no signal or short signal in color doppler of the most affected segment) at Weeks 24, 48, 72, 96, in participants with increased BWT (> 3 mm) at baseline (Week 0).

    Measured: At Weeks 0 (baseline), 24, 48, 72, 96

  48. Number of Participants Achieving IUS (Transmural) Response in Participants with UC as Measured by BWT

    IUS response is defined as reduction of BWT of >=25% accompanied by a decrease of at least one grade in color doppler signal, and decrease in Milan Ultrasound Criteria (MUC) score >= 2 points from baseline (Week 0).

    Measured: At Weeks 0 (baseline), 24, 48, 72, 96

  49. Number of Participants Achieving IUS (Transmural) Remission in Participants with UC as Measured by BWT

    IUS remission is defined as normalization of BWT and all other IUS parameters or normalization of BWT with a color doppler signal (CDS) grade of 0 or 1; a MUC score of <6.2 (corresponds to a Mayo endoscopic score [MES] of <1, whereas a MUC score of <4.3 points aligns with a MES of 0).

    Measured: At Weeks 24, 48, 72, 96

  50. Change from Baseline in Satisfaction with Guselkumab Treatment as per Treatment Satisfaction Questionnaire for Medication (TSQM) Total Score

    TSQM-9 is an abbreviated version of the 14-item TSQM, and is a reliable and valid measure to assess treatment satisfaction. It consists of 9 items distributed in the domains: side effects, effectiveness, convenience, and global satisfaction, with scores at each domain ranging from 0 to 100. Here, higher scores indicating greater satisfaction for that domain. A positive change from baseline indicates improvement.

    Measured: At Weeks 0 (baseline), 12, 48, 96

Timeline

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

  1. First posted5 Aug 2026
  2. Study start12 Nov 2026 (estimated)
  3. Primary completion3 Aug 2029 (estimated)
  4. Study completion12 Nov 2029 (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
35 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07746765
Sponsor's protocol ID
CNTO1959IBD4011
Acronym
GusTaCon
Status last verified
Nov 2026
First submitted
31 Jul 2026
Last updated
3 Nov 2026
Results posted
No
Data monitoring committee
No
FDA-regulated device
No
Individual data sharing
Yes: The data sharing policy of Johnson \& Johnson Innovative Medicine is available at innovativemedicine.jnj.com/our-innovation/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu

Questions about this trial

What is this clinical trial studying?

An observational study of Crohn Disease and Colitis, Ulcerative, run by Janssen Sciences Ireland UC.

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 3 inclusion and 5 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: opening soon, as of the sponsor's last update on 3 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

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 Study Contact (844-434-4210, Participate-In-This-Study1@its.jnj.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Time to Guselkumab Discontinuation (time frame: Up to Week 96). 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 3 Nov 2026.

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