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.
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.
- Conditions
- Crohn Disease, Colitis, Ulcerative
- 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 group | Role | What 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.
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)
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
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
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
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
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
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
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
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
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
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
Characteristics of Participants Receiving Guselkumab Treatment: Age
Characteristics of participants (age) receiving guselkumab treatment will be reported.
Measured: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Sex
Characteristics of participants (sex) receiving guselkumab treatment will be reported.
Measured: At Baseline
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
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
Characteristics of Participants Receiving Guselkumab Treatment: Height
Characteristics of participants (height) receiving guselkumab treatment will be reported.
Measured: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Weight
Characteristics of participants (weight) receiving guselkumab treatment will be reported.
Measured: At Baseline
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
Characteristics of Participants Receiving Guselkumab Treatment: Age at Diagnosis
Characteristics of participants (age at diagnosis) receiving guselkumab treatment will be reported.
Measured: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Disease Duration
Characteristics of participants (disease duration) receiving guselkumab treatment will be reported.
Measured: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Comorbid Diagnoses
Characteristics of participants (comorbid diagnoses) receiving guselkumab treatment will be reported.
Measured: At Baseline
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.
- First posted5 Aug 2026
- Study start12 Nov 2026 (estimated)
- Primary completion3 Aug 2029 (estimated)
- Study completion12 Nov 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Crohn DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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)
Sponsor and investigators
- Lead sponsor
- Janssen Sciences Ireland UC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Janssen Sciences Ireland UC Clinical Trial, Study director, Janssen Sciences Ireland UC
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
Study at a glance
From the registry record, last updated by the sponsor on 3 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Real-world Observational Study of Guselkumab Persistence in Patients With Crohn's Disease and Ulcerative Colitis
- ClinicalTrials.gov ID
- NCT07746765
- Acronym / sponsor ID
- GusTaCon / CNTO1959IBD4011
- Conditions
- Crohn Disease, Colitis, Ulcerative
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 35 participants (estimated)
- Lead sponsor
- Janssen Sciences Ireland UCIndustry (pharma, biotech, devices)
- Study start
- 12 Nov 2026 (estimated)
- Primary completion
- 3 Aug 2029 (estimated)
- Study completion
- 12 Nov 2029 (estimated)
- First posted
- 5 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| 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. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- 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.
Key inclusion criteria (3 listed)
- 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
Key exclusion criteria (5 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Time to Guselkumab Discontinuation
Time frame: Up to Week 96
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.
50 secondary outcomes
Number of Participants with Early Responses to Guselkumab Measured Using Bowel Urgency
Time frame: At Weeks 0 (baseline), 1, 2, 4, 8, 12
Number of Participants with Early Responses to Guselkumab Measured Using Patient Reported Outcome (PRO-2) Components
Time frame: At Weeks 0 (baseline), 1, 2, 4, 8, 12
Number of Participants Achieving Clinical Response for CD as Measured by Harvey-Bradshaw Index (HBI) Score
Time frame: At Weeks 0 (baseline), 12, 48 and 96
Number of Participants Achieving Clinical Response for Ulcerative Colitis (UC) as Measured by Partial Mayo Score (PMS)
Time frame: At Weeks 0 (baseline), 12, 48 and 96
Number of Participants Achieving Clinical Remission for CD as Measured by HBI Score
Time frame: At Weeks 0 (baseline), 12, 48 and 96
Number of Participants Achieving Clinical Remission for UC as Measured by PMS
Time frame: At Weeks 0 (baseline), 12, 48 and 96
Number of Participants Achieving Corticosteroid-Free Clinical Remission for CD
Time frame: At Weeks 0 (baseline), 12, 48 and 96
Number of Participants Achieving Corticosteroid-Free Clinical Remission for UC
Time frame: At Weeks 48 and 96
Number of Participants Achieving Corticosteroid-Free PRO-2 Remission for CD
Time frame: At Weeks 12, 48 and 96
Number of Participants Achieving Corticosteroid-Free PRO-2 Remission for UC
Time frame: At Weeks 12, 48 and 96
Characteristics of Participants Receiving Guselkumab Treatment: Age
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Sex
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Previous Inflammatory Bowel Disease (IBD) Medication Usage
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Smoking Status and History
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Height
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Weight
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Disease Severity At Index
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Age at Diagnosis
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Disease Duration
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Comorbid Diagnoses
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: History of UC/CD
Time frame: At Baseline
Characteristics of Participants Receiving Guselkumab Treatment: Previous IBD-Related Surgeries
Time frame: At Baseline
UC Phenotype According to the Montreal Classification: Extent of Disease
Time frame: At Baseline
UC Phenotype According to Montreal Classification: Severity
Time frame: At Baseline
CD Phenotype According to Montreal Classification: Age at Diagnosis
Time frame: At Baseline
CD Phenotype According to Montreal Classification: Location
Time frame: At Baseline
CD Phenotype According to Montreal Classification: Behavior
Time frame: At Baseline
Number of Participants with Adverse Events (AE)
Time frame: Up to Week 96
Number of Participants with C-Reactive Protein (CRP) Normalization
Time frame: At Weeks 0 (baseline), 4, 12, 48 and 96
Change in CRP Levels
Time frame: At Weeks 0 (baseline), 4, 12, 48 and 96
Number of Participants with Fecal Calprotectin (Fcal) Normalization
Time frame: At Weeks 0 (baseline), 4, 12, 48 and 96
Change in Fcal Levels
Time frame: At Weeks 0 (baseline), 4, 12, 48 and 96
Number of Participants Receiving Concomitant IBD Medications During Guselkumab Treatment
Time frame: Up to Week 96
Health-Related Quality of life (HRQoL) as Measured by Short Inflammatory Bowel Disease Questionnaire (SIBDQ)
Time frame: At Weeks 0 (baseline), 12, 48, and 96
HR-QoL as Measured by Bowel Urgency
Time frame: At Weeks 0 (baseline), 12, 24, 48, 72 and 96
HR-QoL of Participants with CD Receiving Guselkumab Treatment as Measured by PRO-2 Components
Time frame: At Weeks 0 (baseline), 4, 12, 24, 48, 72 and 96
HR-QoL of Participants with UC Receiving Guselkumab Treatment as Measured by PRO-2 Components
Time frame: At Weeks 0 (baseline), 4, 8,12, 24, 48, 72, 96
HRQoL as Measured by Functional Assessment of Chronic Illness Therapy- Fatigue (FACIT-F) Questionnaire
Time frame: At Weeks 0 (baseline), 12, 48, and 96
HRQoL as Measured by Inflammatory Bowel Disease Fatigue (IBD-F) Scale Score
Time frame: At Weeks 0 (baseline), 12, 48, and 96
Number of Participants Achieving Endoscopic Response in Participants with CD as Measured by Simple Endoscopy Score-CD (SES-CD) Total Score
Time frame: Up to Week 96
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Nov 2026.
- Individual participant dataSharing planned: 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
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Crohn Disease (CD), Colitis Ulcerative
Enrolling by invitationPhase 4
MOdel-Informed Precision Dosing of Ustekinumab and VEdolizumab in Inflammatory Bowel Disease
Inflammatory Bowel Diseases, Crohn Disease
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Janssen Sciences Ireland UC Clinical Trial study director
Janssen Sciences Ireland UC
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.